More than 1.25GB RAM

I have a 12" G5 1.5GHz PowerBook with 512MB RAM.
1) Can I upgrade the RAM to more than 1.25GB? I'm sure this was the limit imposed on it by Apply when I bought it - or was this just due to 1GB being the maximum available at the time?
2) Will I notice a vast increase in performance if I upgrade the RAM?
3) Where's the best / cheapest place to go for RAM?
Cheers!

Being a 12-inch user myself, I bought mine from this place because it was the cheapest at the time and they offered OEM Apple RAM which is Samsung.
http://www.memorysolutions.com/index.html
The other place I've bought memory from for all my other systems and have great dealings with them (no problems at all) is DMS.
www.datamem.com
The other high end places that will cost you more for the same RAM but seem popular with customers is:
www.crucial.com
www.transintl.com
http://macsolutions.com/memory.html
You can even try CompUSA, BestBuy, or Office Depot:
- Kingston
- PNY (one I've used in a PowerMac G4 without a hitch)
- Centon (versions specifically "made for a Mac")
Never skimp on RAM. It will only do you good. Never do you bad, unless you have bad RAM installed. My recommendation is getting Samsung brand RAM and make sure they label it as "Apple OEM." The other is Micron brand RAM and it has this stylized "M" logo on it. These are the two manufacturers that Apple has gone to over the years and you'll find it inside their machines.

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More than 4GB of RAM in iMac 8,1 under Snow Leopard

Greetings,
I have an iMac 8.1, running under Snow Leopard in 64bits mode (i.e. kernel is in 64 bits). I am wondering if I can install - and use - more than 4GB of RAM now that my iMac is booting in 64bits mode?
Thank you for your help!

"32 bits mode" does not limit Mac OS X to 4GB or 6GB. Mac Pros could go up to 32GB of RAM, even when they were first introduced with Tiger (10.4) as the OS.
The current iMacs use the 32-bit kernel by default (to maintain compatibility with third-party extensions that have not been upgraded yet). However, it is fully capable of running 64-bit processes (system processes and applications) and using as much RAM as the Mac in question is capable of using, whether that is 4GB, 6GB, 8GB, 16GB, or 32GB.
So to summarize, the RAM limit is based on the hardware, not the software. This isn't like Windows, where 32-bit Windows has a usable RAM limit of somewhere between 3 and 4GB.

Adding more than the recommenced RAM...

I have an iMac 17in Flat Panel 800MHz with 256MB of Apple installed RAM (with an open slot for user installed RAM). The maximum recommended total RAM is 1GB. Can you put a 1GB pc133 144pin SODIMM in the user installable slot? Is this a bad idea to have the total RAM (1.25GB) more than the recommended total of 1GB? Thanks your your thoughts and suggestions.

Is there another way to determine if the memory is really 512 but just not registering correctly with the imac, is it possible the mac doesn't display the correct memory or did I just get taken on ebay?
Either that device is a 256 MB device or it is incompatible with your iMac and is being incorrectly identified as a 256 MB device.
Either situation means that you need to return the RAM to the seller.

Z77A-G45 start up-shut down loop with more than 1 stick RAM

New Build, personal use and doing it myself:
BOARD: MSI Z77A-G45
BIOS: *?* click-bios reports "E7752IMS V2.5", but "MS-7752 VER: 1.4" printed on board?
PSU: Thermaltake 850-watt Black Widow 69A 12v rail
CPU: Intel Core i7-3770K BX80667i73770K - Quad Core, 8MB L3 Cache, 3.50GHz, 77W, Unlocked, fan included, no extra cooler yet
MEM: Corsair Vengeance CMZ8GX3M2A1600C9B 2x4GB 1600 MHz, 9-9-9-24, PC3-12800, 1.5V
HDD: WD Blue WD10EALX 1TB, SATA 6Gbs, 7200RPM, 32MB Cache
CASE: Thermaltake VN770M1W2N Overseer RX-I Full Tower
OS: Win7 Pro 64-bit
System bought as bundle including the 2x4GB Corsair RAM. Assembly went well but took me a long time to make sure I had it all right. Then, nothing happened at power-up, no lights or anything. My first reaction was to replace the included Thermaltake power supply (700 watt 52A 12volt rail) - I disconnected all power to the unit and removed the original psu and, on a whim, I booted up with the original power supply outside the case and the lights came on with the psu laying on it's side! Got the start-up and shut-down loop (lights up and spins all fans for a few seconds, then shuts down and repeats ad infinitum), which I was not expecting. Replaced the original power supply with the Black Widow (specs listed above) and got same shut-down loop.
Started checking the memory sticks one at a time in DIMM2, each produced that shut-down loop. Also tried with two sticks of Patriot Viper 3 PVI316G160C9K 2x8GB 1600 MHz, 9-9-9-24, PC3-12800, 1.5V (which doesn't appear on MSI's compatible list...but I had it handy) Then, With the last 8GB Patriot stick in DIMM2, I finally let it go through that shut-down loop 5-6 times out of frustration, and then it suddenly powered up "normally"!
I took advantage and have smoothly installed Win7 Pro, and mobo drivers from CD, no glitches, USB working fine. Then tested each stick - all 4 RAM sticks work individually in DIMM2, but the board will not accept a 2nd stick in 4 without that same shut-down loop (tried using either matched pairs). Manual specifies using DIMM2 and 4 (which are the black ones) for dual channel. Have also tried slots 1 and 3 (blue) with same shut-down loop results, no BSOD or error codes, not even any beeps. Computer boots normally and runs Win7 just fine with one 8GB stick in DIMM2. Also boots Windows and runs fine with one 4GB Corair chip in DIMM2.
Have done CMOS clears and also re-seated the cpu and heatsink/fan, and all pins and board connections looked OK.
Have some problem getting into the BIOS screen to look at things - seems to boot up so fast with a re-start that Delete key and F11 don't quite catch before Windows starts (8-year-old Logitech USB keyboard?). Have to completely power down and start up to get into BIOS, but that doesn't always work either. System recognized the memory change to the Corsair stick, but the screen went by so quick I couldn't catch it to get into BIOS.
Questions:
1) I've searched this board and read for hours about similar shut-down loops problems, but either nothing seems to match my particular quandary or I don't know what to look for. I don't understand what's happening with this shut-down loop - since all four sticks work individually in DIMM2, could DIMM4 slot be defective and I need to RMA the board?
2) I have not yet removed the board and tried to start it outside the case - could a short be causing the 2nd slot to malfunction? Standoffs are built into the case but they didn't seem too low, and the amount of standoffs matched the mobo mounting holes wiwth nothing else protruding. It's a really solid board that did not bend when being attached. It's also possible to look down behind the board with the front cover off and see that nothing is touching it. Will breadboard it next, since I have to take it out, anyway.
3) Where exactly is the Bios version printed on the board? Click Bios reports version as 2.5 but appears that 1.4 is marked on the board. Have done no updates of any kind, only thing I did was disable the splash screen so I could see POST (like I could read that fast...!). Do I need to contact MSI to find out what Bios version actually shipped with this board? It's OK if I got an older board with updated BIOS, but it's confusing when something different appears to be printed on board.
Additional info: Phase lights - LED is lit and all lights flashed at boot-up. CPU temp running for three hours idle is steady 37-38C, mainboard system temp 25C. Went with a larger power supply because I intend to use Crossfire and more drives in the near future, but using onboard video for now. System to be used for graphics/video processing with multiple programs running.
I'm currently working from an ASUS M3A78-CM board with AMD Phenom 9650 2.4 GHz. I've never dealt with an MSI or an Intel system before, and the Click-Bios is something new to me. Alas, I'm not an expert, but I've followed the basic steps I knew. What did I do wrong, overlook or just plain don't know? I sure would appreciate another opinion before I give up. I'm amazed at the speed of this motherboard/CPU combo - it's probably more than I need, but I'm intrigued to figure it out.
Looking forward to those opinions,
Jilliebob

Quote
Do this, and while it is in the open re-examine your cpu pins w/ a bight light and hd zoom or a magnifying glass.
Thanks, xmad, I'll look at th CPU again tomorrow/next day under the glass when I take the board out. I already checked them under magnification and was leaning toward a funky board, but it never hurts to re-check. Eyesight is not what it used to be, for sure (I miss DOS, if that's a clue...). Don't want to flash the BIOS if not necessary, since it runs Windows fine and everything works except that RAM.
Bernhard, I don't have CPU-Z installed on that machine and don't want to install anything else until it's working normally. I'd never seen Click-Bios before and just need to get over my initial suspicion of something new! Also learn my way around it before I change anything. I'd never encountered a board reporting a bios different than printed on it. I've never messed with manual memory settings or done more overclocking than just a little exploratory and suprisingly successful nudge - if you could point me toward a good basic explaination of all those settings, I could learn from there.
Appreciate your input very much.
Have learned a lot just reading the threads here for the last few days. This is the best forum I've ever encountered. I'll report back - some suggestions in other posts resembling my problem ended with no resolution, and that's a shame because one doesn't know if it worked or not.

Is more than 8 GB RAM useful for Logic ?

Hello
I'm considering the purchase of a MBP Retina, on which it's impossible to add RAM. I have been working with a MBP 17" with 4 GB and had no reason to add more since I hadn't switched to 64bit yet. I thought that the 64bit version would give me access to as much RAM as I wanted, but the guy in the shop, a certfied Logic Pro specialist, tells me that it's not true, that the 64bit version has access to 8 GB RAM max, and thus that instead of ordering a MBP with 16 GB which would come in 3 weeks I might as well get the 8 GB version which is available now. . Who's right ? And are there other reasons for me to get more than 8 GB ?
Thanks !

Mbelekete wrote:
Hello
I thought that the 64bit version would give me access to as much RAM as I wanted,
Hi
Not 'exactly' "as much RAM as I wanted", but enough so that you don't need to worry about it.
Mbelekete wrote:
the guy in the shop, a certfied Logic Pro specialist, tells me that it's not true, that the 64bit version has access to 8 GB RAM max,
Wrong. Logic in 64bit can access as much RAM as you can fit in any Mac right now... and more.
Your main issue is that it is impossible to upgrade the RAM on a Retina MBP after you have purchased it, so if you decide that 8G will be enough, rather than 16G, you will have to live with that for the life of the machine.
8G is good, 16G is better (or likely will be in the future.
HTH
CCT

Audigy 2 ZS with Windows 7 64-Bit and more than 4GB of RAM

Hello,
I'm using Windows 7 Pro 64-Bit and I have installed 8GB RAM. I installed the latest Beta driver and I'm not able to use my microphone. It doesn't recognize any input at all. As soon as I remove 4GB RAM so only 4 GB RAM remain everything works as expected. The microphone problem is only there when you have more than 4GB RAM installed. Is there any driver or workaround to make the microphone work again?
I don't want to
use another version of Windows 7<
reduce my RAM<
use onboard sound<
I hope you can help me or at least tell me if (and when) Creative wants to fix this.
Thank you. Kind regards
T3rm

No solution from me, but I just wanted to chime in because I have the same problem and I'd like to explain it in detail. I've actually had this problem with Vista 64-bit (6GB of RAM) for the past 2 years. It's a very flaky/random problem, where about 40% of the time the microphone worked fine, 20% where I would get minor crackling (turns my voice into a robot voice), 20% with MAJOR crackling, and 20% where the microphone didn't work at all. When it would either crackle or stop working, I would usually restart the computer. After the computer booted up again, it would work fine 95% of the time (I very rarely had to reboot it twice in a row). However, it would randomly change states (between the four listed above) throughout the duration of the computer staying on. And, it would usually progress in the direction of "being more and more broken". For example:
.) Wake up, turn on my computer. Everything works fine.
2.) Go to class, come back. Now the microphone crackles.
3.) Do some homework, eat dinner. Now the microphone doesn't work at all.
I was excited when the SBAX_PCDRV_LB_2_8_00.exe update came out in July so I can finally get a consistent working microphone in a 64-bit version of Windows. Then everything came together last week, when I got a copy of Windows 7 64-bit Professional from my school. I tried the drivers and....FAIL. Pretty much the same thing, but different percentages/tendencies than listed above for Vista.
I just found this on another thread which highlights some useful information:
Microphone issues on Windows 7/Vista 64-bit (x64) with 4GB?of RAM or more
Audigy driver does not support 64-bit addressing, resulting in random issues with the Microphone (static, robotic or distorted voice, white noise).
Workarounds:
- install the 32-bit (x86) version of Windows
- limit the RAM available to Windows to less than 4GB
- enable Memore Hole in BIOS Setup, if?your motherboard supports the setting
Haha, why even release a 64-bit "compatible" driver when it doesn't even work right in 64-bit operating systems? Should I not expect a proper driver and buy an Asus Xonar instead?

Force VM Buffering to Use More than 3.5GB RAM - Good Idea?

Sorry if this was explained, but I didn't see the short answer in any of the other threads I just stumbled on (and it sounds interesting).
First: Download and Info:
http://kb.adobe.com/selfservice/viewContent.do?externalId=kb402029&sliceId=1
The information about VM Buffering in Photoshop CS3 is confusing at first glance.
First it says it gives PS access to about 8GB RAM and speeds things up, then it says it slows things down.
What might be the short recommendation on 2008 Mac Pro 2.8 8-core, 4 internal SATA (no RAID), 10.5.2 Leopard, 14GB RAM?
Files range from 20MB-1GB.
Should I be using these plugins?
ForceVMBuffering.plugin
DisableVMBuffering.plugin

>Just to be sure now, if I install ForceVMBuffering plugin, Photoshop CS3 will use more than the 3.5 GB?
As long as we're clear on what "use" means. The primary function of the VM buffers is to put as much scratch data as possible into RAM, instead of using the normal and much slower scratch hard disks you set in Preferences. That means if you are using a file so small that Photoshop wouldn't need to swap out to the scratch files, you may not see it take much high RAM. Also, my understanding is that because buffering is only about scratch files, it does not help provide more RAM to calculate a single operation, such as a running a complex filter on a very large layer. But if you never see "out of RAM" errors (and most people don't, because Photoshop is already well optimized), you don't need to worry about having enough RAM for operations. You only need to be concerned about using any extra available RAM for performance-enhancing memory buffers, and that's what Photoshop takes care of with VM buffering.

Could the late 2008 MBP take more than 8GB of RAM?

I just recently upgraded the RAM on my late 2008 15" MacBook Pro from 2GB to 8GB, and this sucker's running like a sports car! So this has me wondering. I have babied this thing, and it is plenty powerful for me but what happens 2-3 more years down the road? I had read that the late 2008 models originally could only handle up to 6GB but do to a fimware update in April of 2010 that capacity was upped to 8GB. Is there ever a chance that the RAM capacity could go up again? If not, why?

you're probably stuck at 8GB - i wish i can upgrade my late 08 Macbook to more than 8GB - tried it, but never worked - gave it to my niece instead.
i don't really think you'd use more if you're just running normal apps.
have a look at the image below - that's my macbook with 16GB and have 9 apps running - see how much I have free?
by the time you need more than 8GB - you'll probably buy a new macbook by then - do remember, new macbooks are still selling with 4GB of RAM installed in them.
good luck

Need more than 4GB of RAM Macbook

I have an early Macbook Pro 13" (2011) w/ a 2.7Ghtz Processor and 4GB 1333 of DDR3 Ram and I'm wanting to upgrade to 8GB of ram or more if possible. It's showing it's not available for my machine when I looked on the apple site. Does this mean I'm stuck w/ what I have? I would hope that I can upgrade my ram on my laptop instead of having to buy a whole new computer. Any pros out there that can help what I think is a simple question to you experienced Mac guys.

It is capable of:
Maximum Memory
16 GB (Actual) 8 GB (Apple)
Memory Slots
2 - 204-pin PC-10600 (1333 MHz) DDR3 SO-DIMM
Good sources for memory are:
OWC
DataMem
Crucial.com

Windows XP in bootcamp won't recognise more than 2GB of RAM?

Hello.
I use a Mac Pro (2008) with Mac OS X (10.5.8) and I run Windows XP using bootcamp for games. I recently installed an extra 4GB of memory which Mac OS recognizes fine, but XP can only recognize 2GB.
Is this normal or does anyone know a fix/reason for this?
Thanks.

Actually, Windows XP on any computer can only address about 2.5 GB of RAM. Even on PC if you you want to use more you'll need Vista or Windows 7. Both version recognize ram on my PCs and Macs with Boot Camp. I use Home Ultimate and have no problems.

Adding more than 4GB of RAM to a 1.6GHz PPC

Can I add an additional 2GB RAM to this machine? The DIMM slots are currently full with 4GM RAM but there is room to install 2 more DIMM slots and add the RAM to those. The question is - will the computer recognize the additional RAM? The specs say 4GB RAM max.
Any ideas?
Thanks!

I see a contradiction in
The DIMM slots are curr*ently full* with 4GM RAM but +there is room+ to install 2 more DIMM slots and add the RAM to those
There are 4 DIMM slots for 4 x 1GB
Where would there be any room for more???
You can't use DIMMs of 2GB
Some G5 1.8DP had 8 DIMM slots but not 1.6SP
http://www.apple.com/support/powermac links to manuals, install guides, and tech notes

HT1423 More than 4 gb ram in each slot?

I have a mid 2011 2.5 GHz Intel Core i5 iMac. I bought two 8GB RAM cards. Can I use them? The specs say there are 4 slots meant for 4 GB each. Do I need to return these for two more 4GB ram cards?

Yes, you have four slots. Apple's specs say that model has a max RAM of 16GB (4x4GB modules). However, like many Mac models, newer and larger modules can work in it. Your computer probably shipped with 4GB RAM--two 2GB modules in two of the slots. As long as the new ones are the proper type for your Mac, they shoudl do fine in the two open slots, giving you a total of 20GB RAM.

Improve performance on computers with more than 1 GB RAM (Photoshop CS2)

Photoshop CS2 uses complex memory management procedures. On computers with 1 GB of RAM, or more, you can optimize Photoshop to take advantage of the quantity of RAM in your system to manage memory more efficiently. For further information on how to implement the "Bigger Tiles" Plug-in please refer to Adobe Knowledgebase
Document 331372

Hi,
1 to 8 GB for process is little on the higher side :) Y don't you try to "page" it up like windows.. Serialize the memory intensive objects into a folder and load them (unserialize) when they are required...
Just a suggestion and not exactly answering your qn. ..But just thought will post this comment ... Hope it gives some insight..
Cheers,
Chandra

Mini Mac running Windows 7 won't use more than 2GB of RAM.

I used Bootcamp (newest version) to install Windows 7 Ultimate on my partitioned hard drive on my Mac Mini. The computer ahs 8GB of RAM, but when I open the Task Manager in Windows, I can only see that 2BG of RAM is being used. How can I get it so that I can use all 8GB of RAM on Windows 7? Is there any possibility that I could do it without having to reinstall Windows?
All I would like to know is how I can get Windows 7 to use all 8GB of RAM. I did install the x86 version.
Thannk you.
Quick edit: I can see that the task manager sees that 8GB are installed, but it also says that there is 2GB total. The OS is only being run with the 2GB and not the 8 that are being detected.

Install the 64 bit version of Windows.

More than 2GB of RAM?

I have a 20"2Ghz iMac ALS with 2GB of RAM. Can I upgrade to 4GB?
Thank you.

There have been reports of people putting 4GB in and getting three to register, but you do it at your peril.

More than 1.25GB RAM

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