15 New Messages
Digest #9597
Messages
Wed Jun 12, 2013 7:09 pm (PDT) . Posted by:
"Randy B. Singer" randybrucesinger
http://www.pcmag.
A Standing O for Apple's New Mac Pro
Ever wonder why there has been a massive slowdown in PC growth? Don't blame Windows 8, blame Apple!
Apple has been the leader in tech and there is no indication that anything has changed. Dell is no leader, nor is Microsoft, Lenovo, or IBM. It's Apple. And Apple went too long without showing something new, thus the desktop market slowed down.
So it finally rolls out what appears to be a spectacular desktop machine capable of delivering a whopping seven teraflops of processing power. This is obviously the future king of all multimedia work, especially video editing, which needs all the help it can get. I would also assume that sort of power would make any Adobe application pop. No waiting!
The machine maxes out with 12 cores of Xeon E5 power and a souped-up RAM subsystem that will peak at 60 gigabytes per second bandwidth. It's a total butt-kicker that has no peer today.
Tomorrow is another story because within 30 days, the PC competition will roll out all sorts of machines that will attempt to match the Mac and undercut the price. Then again, maybe the competition won't do anything.
And even if they do something, it will pale in comparison to the Mac Pro's radical design. It's a 6.6-by-9.9-inch tube. It's not a box and it's not the old Apple cheese grater. Its unique design will surely win a lot of awards.
More importantly, you now have to wonder how the competition will counter this. Will someone else make a tubular computer? I doubt it since the competition can barely manage a cube, let alone a tube like this.
Apple left the PC designers in the dust with the old cheese grater and then blew up the market for laptops with the MacBooks and their unique solid aluminum cases. Now this. All the while, the PC desktoppers were still making big funky boxes filled with mostly air (and still overheating)
In this column, I've chided the PC makers for being duds for years. Most recently, I said that these folks should be promoting high-performance and three-monitor setups.
Of course nothing came of the idea. Now Apple rolls this gem out bragging about teraflops and multiple monitors—and not just three monitors but three 4K monitors!
The brain-dead PC folks are flat-footed once more. I can hear the counter argument already: "Well, this is all well and good but at the end of the day, people will be buying our cheap junk anyway because, well, it's cheap."
The PC makers should be ever so proud.
Sent from my iPad mini icloud
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[Non-text portions of this message have been removed]
Wed Jun 12, 2013 7:44 pm (PDT) . Posted by:
"Carol Corley" floridabouvs
I understand the problem is likely with Yahoo.
Losing phone and internet has nothing to do with the problem -- that was a one-time fluke, and I have had this email problem almost since buying the iMac. I live in Florida and have FiOS, which is only available in select areas, so definitely not rural.
I have 5 electronic devices on which to read email -- the iMac, 2 iPads, 1 iPhone, and a Windows 7 PC. Only the iMac has the problem. So for me, it's just a Mac problem.
And I have 4 Yahoo email addresses and one Gmail. The problem is only with 1 Yahoo address.
I hope to talk to Apple techs again tomorrow, an email specialist.
And the email addy in question is my name and the one I give to companies, so hard to change.
Frankly, it makes no sense. So far, I have removed it from the Mac and this have to read that email on other devices.
Carol
The problem is not with Apple, it is most likely with Yahoo! I would have said definitely with Yahoo, until you said you lost both phone and FIOS. Apparently you are located in Florida, but are you urban or rural?
You use gmail, obviously, are you having any problems with gmail? If not, switch your yahoo email accounts over to gmail, and drop yahoo like a hot potato. I'm not talking about forwarding the yahoo, but closing all your yahoo accounts.
So far I have had whodo678 on AOL, Earthstink, Verizon, and now Comcast.
I'm 95% certain the problem is with Yahoo. Have you called their customer service? Oh, that's right they don't have one, because it is free, and they don't care.
Brent
Sent from my iPad 3
Losing phone and internet has nothing to do with the problem -- that was a one-time fluke, and I have had this email problem almost since buying the iMac. I live in Florida and have FiOS, which is only available in select areas, so definitely not rural.
I have 5 electronic devices on which to read email -- the iMac, 2 iPads, 1 iPhone, and a Windows 7 PC. Only the iMac has the problem. So for me, it's just a Mac problem.
And I have 4 Yahoo email addresses and one Gmail. The problem is only with 1 Yahoo address.
I hope to talk to Apple techs again tomorrow, an email specialist.
And the email addy in question is my name and the one I give to companies, so hard to change.
Frankly, it makes no sense. So far, I have removed it from the Mac and this have to read that email on other devices.
Carol
The problem is not with Apple, it is most likely with Yahoo! I would have said definitely with Yahoo, until you said you lost both phone and FIOS. Apparently you are located in Florida, but are you urban or rural?
You use gmail, obviously, are you having any problems with gmail? If not, switch your yahoo email accounts over to gmail, and drop yahoo like a hot potato. I'm not talking about forwarding the yahoo, but closing all your yahoo accounts.
So far I have had whodo678 on AOL, Earthstink, Verizon, and now Comcast.
I'm 95% certain the problem is with Yahoo. Have you called their customer service? Oh, that's right they don't have one, because it is free, and they don't care.
Brent
Sent from my iPad 3
Wed Jun 12, 2013 8:30 pm (PDT) . Posted by:
"HAL9000" jrswebhome
> Frankly, it makes no sense. So far, I have removed it from the Mac
I agree. I have no problems with Safari, Yahoo, my iMac, iPhone4.
It has to be your Mac setting issue.
I agree. I have no problems with Safari, Yahoo, my iMac, iPhone4.
It has to be your Mac setting issue.
Wed Jun 12, 2013 8:05 pm (PDT) . Posted by:
"Randy B. Singer" randybrucesinger
On Jun 12, 2013, at 1:29 PM, N.A. Nada wrote:
> BTW, 2 of the apps are from Intego which is a big self-promoter by use of scare tactics.
All of the anti-virus utilities developers sell using scare tactics of some sort.
To their credit, though, Intego makes some dynamite products. If a serious malware threat were to appear for the Mac that Apple couldn't/
And, unlike, for instance, MacKeeper, Intego doesn't use unethical and borderline illegal methods to promote their products.
Intego's other products are really good too, assuming that you need or want them for some reason. I wouldn't just write off Intego's products because they are from Intego...quite the contrary.
____________
Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)
Macintosh OS X Routine Maintenance
http://www.macattor
____________
Wed Jun 12, 2013 9:45 pm (PDT) . Posted by:
"Oneal Neumann" newalander
On 2013 June 12 (at 22:29) NA Nada wrote:
I guess I was looking for feedback on the worth of products that target Mac users.
I (along with others) get promo-deal packages that entice with extra-low prices, however (price notwithstanding) are those products actually worthwhile –do they work as advertised– or do they perhaps contribute to computer-functionin
Some antivirus software has been known to slow the functioning of one's OS.
Interesting divergence of opinion [NA Nada and Randy Singer] re Intego.
Thanx for the input.
Oneal
> Me neither, especially if the OP doesn't see the point.
>
> BTW, 2 of the apps are from Intego which is a big self-promoter by use of scare tactics.
>
> I did not use the link, since who knows where it goes, I did a search for MacLegion. The abbreviated link made it look suspicious, added to the disconnected grammar —Oneal usually writes better— and the too-good-to-
>
> On Jun 12, 2013, at 1:17 PM, Jim Showalter wrote:
>
>> I don't see the point of having posted this.
>>
>> On Jun 12, 2013, at 10:19 AM, Oneal Neumann <wardell.h.s@
>>
>>> http://mad.ly/
>>>
>>> This is the Security Bundle 2013 from MacLegion.
>>>
>>> Thirty bucks (down from 360$) for six apps.
>>>
>>> Not sure that I see the point of any of these.
>>>
>>> Oneal
>
[Non-text portions of this message have been removed]
Wed Jun 12, 2013 10:45 pm (PDT) . Posted by:
"N.A. Nada"
Randy has more experience than I do, but Intego was one one of the first to cry "The sky is falling."
I have ClamXav, that I only run manually every six months or so. And other than Disk Utility, I don't have any current fix-it software on my Mac.
I have TechTool Deluxe v3.1.3. It is 3 full versions out of date. It is so old, I would not trust using it on 10.7.5. I think I got it after 10.0 came out and have not needed it.
What I am trying to say is that you don't need a lot of those fixit apps. I don't have a any problems on my system, maybe because I don't use any 3rd party apps that change things on the system. I use settings within the system to do those things.
Brent
On Jun 12, 2013, at 9:45 PM, Oneal Neumann wrote:
On 2013 June 12 (at 22:29) NA Nada wrote:
I guess I was looking for feedback on the worth of products that target Mac users.
I (along with others) get promo-deal packages that entice with extra-low prices, however (price notwithstanding) are those products actually worthwhile ˆdo they work as advertisedˆ or do they perhaps contribute to computer-functioning problems?
Some antivirus software has been known to slow the functioning of one‚s OS.
Interesting divergence of opinion [NA Nada and Randy Singer] re Intego.
Thanx for the input.
Oneal
I have ClamXav, that I only run manually every six months or so. And other than Disk Utility, I don't have any current fix-it software on my Mac.
I have TechTool Deluxe v3.1.3. It is 3 full versions out of date. It is so old, I would not trust using it on 10.7.5. I think I got it after 10.0 came out and have not needed it.
What I am trying to say is that you don't need a lot of those fixit apps. I don't have a any problems on my system, maybe because I don't use any 3rd party apps that change things on the system. I use settings within the system to do those things.
Brent
On Jun 12, 2013, at 9:45 PM, Oneal Neumann wrote:
On 2013 June 12 (at 22:29) NA Nada wrote:
I guess I was looking for feedback on the worth of products that target Mac users.
I (along with others) get promo-deal packages that entice with extra-low prices, however (price notwithstanding) are those products actually worthwhile ˆdo they work as advertisedˆ or do they perhaps contribute to computer-functionin
Some antivirus software has been known to slow the functioning of one‚s OS.
Interesting divergence of opinion [NA Nada and Randy Singer] re Intego.
Thanx for the input.
Oneal
Thu Jun 13, 2013 12:57 am (PDT) . Posted by:
"Randy B. Singer" randybrucesinger
On Jun 12, 2013, at 9:45 PM, Oneal Neumann wrote:
> I (along with others) get promo-deal packages that entice with extra-low prices, however (price notwithstanding) are those products actually worthwhile ˆdo they work as advertisedˆ
Every package deal is different. Most package deals have at least one gem that makes the entire package worth the price. If you get the package for that gem, you are introduced to the other software and may decide to continue to use it. The developers of those other programs make their money when you go to upgrade the program in the future.
> or do they perhaps contribute to computer-functionin
Once again, every package deal is different. Generally, under OS X, only programs that install software working at a low level (e.g. some anti-virus software and some utilities) might contribute to slowdowns and software conflicts.
> Some antivirus software has been known to slow the functioning of one‚s OS.
Yes, that 's very true. While Intego's Virus Barrier is one of the best anti-virus programs, even it has been known to (rarely) cause a software conflict. That's why, at this point in time, anti-virus software is probably more trouble than it is worth.
____________
Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)
Macintosh OS X Routine Maintenance
http://www.macattor
____________
Thu Jun 13, 2013 1:03 am (PDT) . Posted by:
"Randy B. Singer" randybrucesinger
On Jun 12, 2013, at 10:45 PM, N.A. Nada wrote:
> Randy has more experience than I do, but Intego was one one of the first to cry "The sky is falling."
Intego has over-reacted to the introduction of new malware in the past. However, I think that the press wildly over-reacted to Intego's over-reaction.
Given that, it's interesting how the press has said almost nothing about companies who are far worse; doing borderline illegal things, and certainly unethical things, like MacKeeper.
By the way, nothing that I've said should be misinterpreted to mean that I'm saying that any Mac users need anti-virus software. At this time, no Mac users need to have anti-virus software, and indeed, having it might be a bad idea.
> What I am trying to say is that you don't need a lot of those fixit apps.
Correct.
____________
Randy B. Singer
Co-author of The Macintosh Bible (4th, 5th, and 6th editions)
Macintosh OS X Routine Maintenance
http://www.macattor
____________
Thu Jun 13, 2013 6:57 am (PDT) . Posted by:
"Denver Dan" denverdan22180
Howdy.
I've been mentioning new Thunderbolt products from time-to-time the
past couple of years.
With the new MacPro cylinder announced and with 6 Thunderbolt Two ports
Thunderbolt devices should proliferate at a greater speed and will be
more important for peripheral connections.
With that in mind, here's a new announced product from Sonnet.
Echo 15 Thunderbolt Dock.
<http://www.sonnettech.com/product/echo15thunderboltdock.html >
15 ports and a bay/tray/slot for either a hard drive or optical drive
like a BD burner.
Ports include:
- Two 3 Gb/s eSATA
- One FireWire 800
- One RJ-45 (Gigabit Ethernet)
- Two Thunderbolt
- Four USB 3.0
- Two audio input
- Two audio output
- microphone jacks: 1 in front and 1 in rear
- headphone jack
- stereo speaker jack
- Power plug socket
Sonnet says availability will be summer 2013.
A device like this could preclude the necessity of something like a
card expansion chassis for eSATA PCIe cards (card cage), a USB 3 hub, a
FireWire adapter, for users like me.
Still to be determined with this gadget is whether the eSATA ports
support port multiplayer or not.
Price could be about $400 USD.
Denver Dan
I've been mentioning new Thunderbolt products from time-to-time the
past couple of years.
With the new MacPro cylinder announced and with 6 Thunderbolt Two ports
Thunderbolt devices should proliferate at a greater speed and will be
more important for peripheral connections.
With that in mind, here's a new announced product from Sonnet.
Echo 15 Thunderbolt Dock.
<http://www.sonnette
15 ports and a bay/tray/slot for either a hard drive or optical drive
like a BD burner.
Ports include:
- Two 3 Gb/s eSATA
- One FireWire 800
- One RJ-45 (Gigabit Ethernet)
- Two Thunderbolt
- Four USB 3.0
- Two audio input
- Two audio output
- microphone jacks: 1 in front and 1 in rear
- headphone jack
- stereo speaker jack
- Power plug socket
Sonnet says availability will be summer 2013.
A device like this could preclude the necessity of something like a
card expansion chassis for eSATA PCIe cards (card cage), a USB 3 hub, a
FireWire adapter, for users like me.
Still to be determined with this gadget is whether the eSATA ports
support port multiplayer or not.
Price could be about $400 USD.
Denver Dan
Thu Jun 13, 2013 7:49 am (PDT) . Posted by:
"TimeFramePhoto"
While it's great to see new Thunderbolt products trickling into the marketplace, I remain concerned at their continued high prices and relative scarcity. I have to think of Thunderbolt 1 as a very promising experiment that largely failed, and we may be hoping against hope that the Thunderbolt 2 landscape will develop any more quickly or affordably. Of course, SOMEONE needs to push in these new directions, and Apple should be applauded for at least trying...but there's also something to be said for knowing when to fold.
On a related note, XQD memory cards for cameras started coming out around the same time as Thunderbolt. Now, about 18 months later, my Nikon D4 remains the only camera to use them. They're better than the alternatives in almost every way, but the only card reader for them is USB3, which I don't have. So I'm stuck just using the CompactFlash slot in my camera because I still have a couple of "old fashioned" FireWire 800 card readers. A Thunderbolt card reader for XQD cards would seem like a no-brainer, but would probably cost more than any of us could imagine.
Sorry, feeling grumpy today.
Dane
On Jun 13, 2013, at 9:57 AM, Denver Dan wrote:
> Howdy.
>
> I've been mentioning new Thunderbolt products from time-to-time the
> past couple of years.
>
> With the new MacPro cylinder announced and with 6 Thunderbolt Two ports
> Thunderbolt devices should proliferate at a greater speed and will be
> more important for peripheral connections.
>
> With that in mind, here's a new announced product from Sonnet.
>
> Echo 15 Thunderbolt Dock.
>
> <http://www.sonnettech.com/product/echo15thunderboltdock.html >
>
> 15 ports and a bay/tray/slot for either a hard drive or optical drive
> like a BD burner.
>
> Ports include:
>
> - Two 3 Gb/s eSATA
> - One FireWire 800
> - One RJ-45 (Gigabit Ethernet)
> - Two Thunderbolt
> - Four USB 3.0
> - Two audio input
> - Two audio output
> - microphone jacks: 1 in front and 1 in rear
> - headphone jack
> - stereo speaker jack
> - Power plug socket
>
> Sonnet says availability will be summer 2013.
>
> A device like this could preclude the necessity of something like a
> card expansion chassis for eSATA PCIe cards (card cage), a USB 3 hub, a
> FireWire adapter, for users like me.
>
> Still to be determined with this gadget is whether the eSATA ports
> support port multiplayer or not.
>
> Price could be about $400 USD.
>
> Denver Dan
On a related note, XQD memory cards for cameras started coming out around the same time as Thunderbolt. Now, about 18 months later, my Nikon D4 remains the only camera to use them. They're better than the alternatives in almost every way, but the only card reader for them is USB3, which I don't have. So I'm stuck just using the CompactFlash slot in my camera because I still have a couple of "old fashioned" FireWire 800 card readers. A Thunderbolt card reader for XQD cards would seem like a no-brainer, but would probably cost more than any of us could imagine.
Sorry, feeling grumpy today.
Dane
On Jun 13, 2013, at 9:57 AM, Denver Dan wrote:
> Howdy.
>
> I've been mentioning new Thunderbolt products from time-to-time the
> past couple of years.
>
> With the new MacPro cylinder announced and with 6 Thunderbolt Two ports
> Thunderbolt devices should proliferate at a greater speed and will be
> more important for peripheral connections.
>
> With that in mind, here's a new announced product from Sonnet.
>
> Echo 15 Thunderbolt Dock.
>
> <http://www.sonnette
>
> 15 ports and a bay/tray/slot for either a hard drive or optical drive
> like a BD burner.
>
> Ports include:
>
> - Two 3 Gb/s eSATA
> - One FireWire 800
> - One RJ-45 (Gigabit Ethernet)
> - Two Thunderbolt
> - Four USB 3.0
> - Two audio input
> - Two audio output
> - microphone jacks: 1 in front and 1 in rear
> - headphone jack
> - stereo speaker jack
> - Power plug socket
>
> Sonnet says availability will be summer 2013.
>
> A device like this could preclude the necessity of something like a
> card expansion chassis for eSATA PCIe cards (card cage), a USB 3 hub, a
> FireWire adapter, for users like me.
>
> Still to be determined with this gadget is whether the eSATA ports
> support port multiplayer or not.
>
> Price could be about $400 USD.
>
> Denver Dan
Thu Jun 13, 2013 7:14 am (PDT) . Posted by:
"Denver Dan" denverdan22180
Howdy.
Here are a couple of names I've seen suggested.
1. MacVader.
2. DarthMac.
3. The Tube.
4. Waste Can (carefully avoiding "trash can").
My first thought was MacPro Eggplant.
Or, MacPro Mag (as in MagLite, hummm? has possibilities!)
Or, MacPro Vase.
Or, MacPro The Jug (in honor of the WW II era Republic P-47 fighter
nicknamed "The Jug").
Denver Dan
Here are a couple of names I've seen suggested.
1. MacVader.
2. DarthMac.
3. The Tube.
4. Waste Can (carefully avoiding "trash can").
My first thought was MacPro Eggplant.
Or, MacPro Mag (as in MagLite, hummm? has possibilities!
Or, MacPro Vase.
Or, MacPro The Jug (in honor of the WW II era Republic P-47 fighter
nicknamed "The Jug").
Denver Dan
Thu Jun 13, 2013 7:24 am (PDT) . Posted by:
"Jon Kreisler" jonkreisler
Warning: You may not want to upgrade to AirPort Utility 6.3. There is a
problem with the utility connecting to older AirPort Extreme base stations
(and maybe other models) over Wi-Fi.
Version 6.2 is still viable. If you want to try 6.3, make sure you can
restore to 6.2 if you have issues. I myself have the problem with a 1 1/2
year old AirPort Extreme base station.
Apple appears to be aware of the issue but has not resolved yet.
Jon
[Non-text portions of this message have been removed]
problem with the utility connecting to older AirPort Extreme base stations
(and maybe other models) over Wi-Fi.
Version 6.2 is still viable. If you want to try 6.3, make sure you can
restore to 6.2 if you have issues. I myself have the problem with a 1 1/2
year old AirPort Extreme base station.
Apple appears to be aware of the issue but has not resolved yet.
Jon
[Non-text portions of this message have been removed]
Thu Jun 13, 2013 8:23 am (PDT) . Posted by:
"Ken" avliska
I just upgraded yesterday and no issues yet. My Frisbee-white-13 year old airport extreme w/modem port is still working, although I'm not running thru the modem port so I can't report on that.
Ken S.
2011 MacBook AIr w/SSD120
OS 10.8.4
--- In macsupportcentral@yahoogroups.com , Jon Kreisler <jonkreisler@...> wrote:
>
> Warning: You may not want to upgrade to AirPort Utility 6.3. There is a
> problem with the utility connecting to older AirPort Extreme base stations
> (and maybe other models) over Wi-Fi.
> Version 6.2 is still viable. If you want to try 6.3, make sure you can
> restore to 6.2 if you have issues. I myself have the problem with a 1 1/2
> year old AirPort Extreme base station.
> Apple appears to be aware of the issue but has not resolved yet.
>
> Jon
Ken S.
2011 MacBook AIr w/SSD120
OS 10.8.4
--- In macsupportcentral@
>
> Warning: You may not want to upgrade to AirPort Utility 6.3. There is a
> problem with the utility connecting to older AirPort Extreme base stations
> (and maybe other models) over Wi-Fi.
> Version 6.2 is still viable. If you want to try 6.3, make sure you can
> restore to 6.2 if you have issues. I myself have the problem with a 1 1/2
> year old AirPort Extreme base station.
> Apple appears to be aware of the issue but has not resolved yet.
>
> Jon
Thu Jun 13, 2013 8:41 am (PDT) . Posted by:
"Jon Kreisler" jonkreisler
So far, only the 802.11n AirPort Extreme and AirPort Express are showing up
as problematic.
On Thu, Jun 13, 2013 at 11:23 AM, Ken <avlisk@cox.net> wrote:
> **
>
>
> I just upgraded yesterday and no issues yet. My Frisbee-white-13 year old
> airport extreme w/modem port is still working, although I'm not running
> thru the modem port so I can't report on that.
> Ken S.
> 2011 MacBook AIr w/SSD120
> OS 10.8.4
>
>
> --- In macsupportcentral@yahoogroups.com , Jon Kreisler <jonkreisler@...>
> wrote:
> >
> > Warning: You may not want to upgrade to AirPort Utility 6.3. There is a
> > problem with the utility connecting to older AirPort Extreme base
> stations
> > (and maybe other models) over Wi-Fi.
> > Version 6.2 is still viable. If you want to try 6.3, make sure you can
> > restore to 6.2 if you have issues. I myself have the problem with a 1 1/2
> > year old AirPort Extreme base station.
> > Apple appears to be aware of the issue but has not resolved yet.
> >
> > Jon
>
> __
>
[Non-text portions of this message have been removed]
as problematic.
On Thu, Jun 13, 2013 at 11:23 AM, Ken <avlisk@cox.net> wrote:
> **
>
>
> I just upgraded yesterday and no issues yet. My Frisbee-white-
> airport extreme w/modem port is still working, although I'm not running
> thru the modem port so I can't report on that.
> Ken S.
> 2011 MacBook AIr w/SSD120
> OS 10.8.4
>
>
> --- In macsupportcentral@
> wrote:
> >
> > Warning: You may not want to upgrade to AirPort Utility 6.3. There is a
> > problem with the utility connecting to older AirPort Extreme base
> stations
> > (and maybe other models) over Wi-Fi.
> > Version 6.2 is still viable. If you want to try 6.3, make sure you can
> > restore to 6.2 if you have issues. I myself have the problem with a 1 1/2
> > year old AirPort Extreme base station.
> > Apple appears to be aware of the issue but has not resolved yet.
> >
> > Jon
>
> __
>
[Non-text portions of this message have been removed]
Thu Jun 13, 2013 8:25 am (PDT) . Posted by:
"bobbystar" bobbystar
thanks, good explanation.
--- In macsupportcentral@yahoogroups.com , Denver Dan <denver.dan@...> wrote:
>
> Howdy.
>
> Bob, check this Apple tech article on how to install RAM in your model
> iMac and which RAM slots can and can not be populated with RAM. I
> think there is a restriction on using only a single chip in one slot of
> one bank.
>
> Many Macs support "memory interleaving."
>
> Your iMac supports something called "memory interleaving." Memory
> interleaving, when RAM is added in matching pairs, will somewhat speed
> up some of your computer's operations. I've seen reports in the past
> that this can be from about 5% to 15% faster. It depends on what you
> do and what kind of files and work you do.
>
> The exact nature of where "matching pairs" are inserted depends on the
> specific model computer.
>
> I suspect a misunderstanding of the memory interleaving is where you
> have been seeing two conflicting positions on adding RAM.
>
> Your iMac has two RAM banks and each bank has two slots for RAM chips.
>
> You can put in mismatched RAM chip sizes if you wish but doing that
> will not utilize the memory interleaving feature.
>
> So you can add two 4 GB chips to one bank and two more 4 GB chips to
> the second bank and you will have memory interleaving turned on for a
> total of 16 GB of RAM
>
> Or, you could have two 2 GB chips in the first bank and add two 4 GB
> chips in the second bank and memory interleaving will be on for a total
> of 12 GB of RAM.
>
> If you have the current two 2 GB chips in the first bank and add one 2
> GB chip and one 4 GB chip to 2nd bank then memory interleaving will not
> be on. Computer will work fine but not quite as fast.
>
> Denver Dan
>
>
> On Wed, 12 Jun 2013 18:29:48 +0000, bobbystar wrote:
> > I have a "late 2009 21.5" iMac with the original 4Gb of Ram. Two of
> > the four slots are empty.
> >
> > The computer can take up to 16Gb of RAM.
> >
> > I have seen conflicting information regarding if I can add two
> > additional 4Gb modules or if I have to add only two 2Gb modules. In
> > other words some say the memory in each slot must match.
> >
> > From what I see on the Apple web site and the Crucial web site I have
> > flexibility as to what I can add. However, elsewhere I have seen it
> > stated that all the memory modules must be the same size.
> >
> > Thanks,
> >
> > Bob
> >
> >
>
--- In macsupportcentral@
>
> Howdy.
>
> Bob, check this Apple tech article on how to install RAM in your model
> iMac and which RAM slots can and can not be populated with RAM. I
> think there is a restriction on using only a single chip in one slot of
> one bank.
>
> Many Macs support "memory interleaving.
>
> Your iMac supports something called "memory interleaving.
> interleaving, when RAM is added in matching pairs, will somewhat speed
> up some of your computer'
> that this can be from about 5% to 15% faster. It depends on what you
> do and what kind of files and work you do.
>
> The exact nature of where "matching pairs" are inserted depends on the
> specific model computer.
>
> I suspect a misunderstanding of the memory interleaving is where you
> have been seeing two conflicting positions on adding RAM.
>
> Your iMac has two RAM banks and each bank has two slots for RAM chips.
>
> You can put in mismatched RAM chip sizes if you wish but doing that
> will not utilize the memory interleaving feature.
>
> So you can add two 4 GB chips to one bank and two more 4 GB chips to
> the second bank and you will have memory interleaving turned on for a
> total of 16 GB of RAM
>
> Or, you could have two 2 GB chips in the first bank and add two 4 GB
> chips in the second bank and memory interleaving will be on for a total
> of 12 GB of RAM.
>
> If you have the current two 2 GB chips in the first bank and add one 2
> GB chip and one 4 GB chip to 2nd bank then memory interleaving will not
> be on. Computer will work fine but not quite as fast.
>
> Denver Dan
>
>
> On Wed, 12 Jun 2013 18:29:48 +0000, bobbystar wrote:
> > I have a "late 2009 21.5" iMac with the original 4Gb of Ram. Two of
> > the four slots are empty.
> >
> > The computer can take up to 16Gb of RAM.
> >
> > I have seen conflicting information regarding if I can add two
> > additional 4Gb modules or if I have to add only two 2Gb modules. In
> > other words some say the memory in each slot must match.
> >
> > From what I see on the Apple web site and the Crucial web site I have
> > flexibility as to what I can add. However, elsewhere I have seen it
> > stated that all the memory modules must be the same size.
> >
> > Thanks,
> >
> > Bob
> >
> >
>
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