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.

Similar Messages

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?

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

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

If my Mini is running 64 bit can I run more than 4Gb RAM?

I hear ALL over the place that the mini can not use more than 4Gb RAM.
Is this a hardware limitaion of the motherboard/Processor?
OR
Is this due to the fact that mini's run at 32 bit?
You can now easily run modern mini's at 64 bit:
http://blog.leanopen.nl/2010/04/23/doesnt-your-mac-mini-want-to-boot-in-64-bit/
So who knows the REAL answer?
Thanks -
skibum

Most of the Minis are limited to less than 4GB and that is a hardware limitation. The newest Mini with the nVidia video can access more. Apple only supports 4GB because they use matched DIMMs, which on paper have a slight performance improvement over unmatched DIMMs. For whatever reason, Apple doesn't yet support 4GB DIMMs in the Mini. (I suspect that the power requirements or prices for the larger DIMMS may have affected Apple's decision.)
If you do have an appropriate Mini, then you can get compatible 4GB DIMMs from [Macsales|http://eshop.macsales.com/shop/mac-mini> or others. Regardless, although I normally trust Macsales, more than 4GB is not supported by Apple, so you have to take that in to consideration. (i.e.: warranty from Apple or Applecare.)

Will elements 9 recognize more than 4gb ram?

why does elements 9 only show 4gb ram when my system (window 7 professional) has 12 gb & how do I get it to recognized it?
Elements Organizer 9.0.3.0
Core Version: 9.0.3 (20110328.m.11320)
Language Version: 9.0 (20100905.m.9093)
Current Catalog:
Catalog Name: My Catalog
Catalog Location: C:\ProgramData\Adobe\Elements Organizer\Catalogs\My Catalog\
Catalog Size: 73.3MB
Catalog Cache Size: 627.1MB
System:
Operating System Name: 2000
Operating System Version: 6.1 Service Pack 1
System Architecture: Intel CPU Family:6 Model:14 Stepping:5 with MMX, SSE Integer, SSE FP
Built-in Memory: 4GB
Free Memory: 4GB
Important Drivers / Plug-ins / Libraries:
Microsoft DirectX Version: 9.0
Apple QuickTime Version: Not installed
Adobe Reader Version: 9.4
Adobe Acrobat Version: Not installed
CD and DVD drives:
D: (ASUS DRW-24B1ST BUS: 1 ID: 1 Firmware: 1.01)

To follow up on 99jon's post, 2 to the 32nd power is 4.3Gb. Therefore, PSE will not be able to see more than 4Gb. Win7 will do a great job of managing the installed memory, so there's nothing for you to do but relax and run your applications.
Ken
Message was edited by: photodrawken to correct typo.

Oracle 9,2.0 32 bit for Solaris can not access more than 4GB?

I am sorry to ask rather stupid question.
I joined company which has big SUN Fire running Solaris 9 64bit version.
It has system memory 16GB and 8 CPUs.
I found 8GB memory reported as free. It is production box. It is heavy loaded.
I guess Kernel parameter settings for Oracle set too low.
I reported DBA and asked DBA to improve.
My DBA said Oracle 32 bit version was installed and Oracle 32bit can't access more than 4GB system memory.
Is it true that Oracle 9.2.0 32bit for Solaris can not access more than 4GB memory?
32bit CPU and 32bit OS might have problem in access big memory.
But I never heard Oracle 9 running on 64bit Solaris box can not access more than 4GB.
Specially on Sparc 64bit chip and Solaris 9 64bit version.
I searched forums and could not find good answer. I believe it is rather obvious.
Please help me on this. I will be greatly appreciated.
Thanks in advance.
Message was edited by:
user524303

I was really surprised by the fact that almighty
ORACLE can not access 4GB memory.
So, it is true that 32bit Oracle is limited by 4GB RAM.Nope. 32bit almighty anything is limited to (max) 2^32 virtual adresses on a vmm system.
Often there is also some split where memory is divided into system and user areas, where user (program) has e.g. 2 or 3GB. All this works regardless of amount of RAM available 0.5 or 512GB.
Perhaps this link provides some useful info/background.

External Hard Drive(ERROR CODE 0) .DMG Back Up Issues. How to get more than 4gbs in .DMG back ups.

I am currently using a my external hard drive for my late 2009 Mac Mini, my brothers MBP and my sisters HP laptop. I have a Western Digital My Passport 1T external Hard Drive to back up all are information. I formatted it to work on mac and pc and its on the "MS-DOS(FAT) setup at the momment. Im trying to back up DMG files from my HDD hard drive in my computer to the External Hard Drive to pass them onto my brother. I understand the whole part of me getting the "Error Code 0" where i can only put 4gbs of storage for that. I wanted to no is there a way for me to format my external hard drive for it to work on a Mac and a PC but for me to also transfer my .dmg files with more than 4gbs of that storage to my external hard drive?
p.s Im running on OSX 10.6.8 and the DMG files are alittle more than 4 gbs. From 5-10gbs. Thank you for all the replys. It helps me out and others in the Apple community out!

Hi, Steve. Your proposed procedure is just fine until you get to this point:
...reformat the WD to be Mac friendly *and reformat in FAT32* ...
Reformatting the newly-reformatted Mac-friendly drive as FAT32 will, as you say, simply put you back where you were before, but with your data on a different drive. Omit that step, and you'll have a Mac-friendly drive that you can copy your data back onto.
If you normally work with files exceeding 4GB in size, you won't want any hard drive in FAT32 format. If for some reason you'd like all your external drives in NTFS format, download and install the NTFS-3G driver, which will enable your Mac to read *and write to* that disk format.

How to copy a folder more then 4GB from from my iMac to a pendrive or external hard disk?

how to copy a folder more then 4GB from from my iMac to a pendrive or external hard disk?
i have an iMac 27inch with os x 10.8.

You'll have to reformat the drive.
Assuming you want to use it with both Mac and Windows, reformat it on the Windows machine as exFAT (this is FAT64 as opposed to the standard formatting for those drives as FAT32)
exFAT has no file size limitations (for all practical purposes).
This will require the Windows machine to be on at least XP (with an update) and the Mac on 10.6.5 or higher
If it's being used only with Mac, reformat as GUID partition map and Mac OS Extended.

Load and Read XML file size more than 4GB

Hi All
My environment is Oracle 10.2.0.4 on Solaris and I have processes to work with XML file as below detail by PL/SQL
1. I read XML file over HTTP port into XMLTYPE column in table.
2. I read value no.1 from table and extract to insert into another table
On test db, everything is work but I got below error when I use production XML file
     ORA-31186: Document contains too many nodes
Current XML size about 100MB but the procedure must support XML file size more than 4GB in the future.
Belows are some part of my code for your info.
1. Read XML by line into variable and insert into table
LOOP
UTL_HTTP.read_text(http_resp, v_resptext, 32767);
DBMS_LOB.writeappend (v_clob, LENGTH(v_resptext), v_resptext);
    END LOOP;
    INSERT INTO XMLTAB VALUES (XMLTYPE(v_clob));
2. Read cell value from XML column and extract to insert into another table
DECLARE
CURSOR c_xml IS
(SELECT trim(y.cvalue)
FROM XMLTAB xt,
XMLTable('/Table/Rows/Cells/Cell' PASSING xt.XMLDoc
COLUMNS
cvalue
VARCHAR(50)
PATH '/') y;
    BEGIN
OPEN c_xml;
FETCH c_xml INTO v_TempValue;
<Generate insert statement into another table>
EXIT WHEN c_xml%NOTFOUND;
CLOSE c_xml;
    END
And one more problem is performance issue when XML file is big, first step to load XML content to XMLTYPE column slowly.
Could you please suggest any solution to read large XML file and improve performance?
Thank you in advance.
Hiko

See Mark Drake's (Product Manager Oracle XMLDB, Oracle US) response in this old post: ORA-31167: 64k size limit for XML node
The "in a future release" reference, means that this boundary 64K / node issue, was lifted in 11g and onwards...
So first of all, if not only due to performance improvements, I would strongly suggest to upgrade to a database version which is supported by Oracle, see My Oracle Support... In short Oracle 10.2.x was in extended support up to summer 2013, if I am not mistaken and is currently not supported anymore...
If you are able to able to upgrade, please use the much, much more performing XMLType Securefile Binary XML storage option, instead of the XMLType (Basicfile) CLOB storage option.
HTH

Allocating more than 4gb to VMs

am I unable to allocate more than 4GB to my VM's because I'm running 32 bit VMs or 32 bit Hypervisor??? I'm running release : 2.6.18-128.2.1.4.9.el5xen
version : #1 SMP Fri Oct 9 14:57:31 EDT 2009.
Edited by: user12336221 on Dec 10, 2009 2:29 PM

Hi，
There are two cases causing this issue:
1. You have configured the prefer server for this vm. You can make sure which server is the prefer server of this vm. In this case, the manager will check the prefer server's memory, not the largest memory of the servers in this serverPool.
2. The server you used increase the memory after user registered this server in Oracle VM Manager. As the manager has recorded the memory of this server, will not sync the real memory into the DB again. You can check the real value in db: select server_name, mem_amount from ovs_server
Both two cases will query the data in DataBase, not the real data in Server.
Edited by: harth on Dec 10, 2009 7:07 PM

Have an Intel 2.4 Core 2 Duo Imac, just updated to Snow Leopard 10.6.3. Can it handle 10.6.8? Can it handle anything later than that?

Have an Intel 2.4 GHz Intel Core 2 Duo Imac, just updated to Snow Leopard 10.6.3. Can it be updated to Snow Leopard 10.6.8?

If you have 10.6.3 installed then you meet the requirements for 10.6.8. It is a free update via Software Update.
Seeing that you have a Mid-2007 iMac, if your computer has at least 2 GB of RAM (4 GB recommended) you can install Mountain Lion.

I have an iMac later 2006 with Snow Leopard, is there an expiration date to upgrade to Lion?

is it better to buy the full retail disc for Lion or get the one on apple for $19.99 n is there an Expiration date? Thanks.

No, but your oldish iMac may not be able to run Lion.
Check via Software Update whether any further updates are required, particularly to iTunes.
You should now see the App Store icon in iTunes, and you now need to set up your account:
http://support.apple.com/kb/HT4479
You can now upgrade to Mavericks OS 10.9 for free IF you have one of the following Macs, with not less than 2GB of RAM, and at least 8GB of available space on your hard drive:
iMac (Mid-2007 or later)
MacBook (13-inch Aluminum, Late 2008), (13-inch, Early 2009 or later)
MacBook Pro (13-inch, Mid-2009 or later), (15-inch, Mid/Late 2007 or later), (17-inch, Late 2007 or later)
MacBook Air (Late 2008 or later)
Mac Mini (Early 2009 or later)
Mac Pro (Early 2008 or later)
Xserve (Early 2009)
iCloud system requirements:
http://support.apple.com/kb/ht4759
If you cannot run Mavericks you can purchase the code to use to download Lion from the App Store (Lion requires an Intel-based Mac with a Core 2 Duo, i3, i5, i7 or Xeon processor and 2GB of RAM, running the latest version of Snow Leopard):
http://store.apple.com/us/product/D6106Z/A/os-x-lion
or Mountain Lion:
http://store.apple.com/us/product/D6377Z/A/os-x-mountain-lion

IMac 10.6.8, Snow Leopard with iTunes 11.0.1. loss of wifi speed when connecting a Bose Sound System via bluetooth

Hello, I have an iMac 10.6.8, Snow Leopard with iTunes 11.0.1. When connecting my Bose Sound System via bluetooth the wifi downloadspeed goes from snappy to a crawl, disconnecting the bluetooth connection, the downloadspeed goes up again. Don't have this problems with the Sound System when connecting it to my iPad. I like to mention too, that the downloadspeed of my iPad is always better than of my iMac. Are there any experiences concerning this problem? Thank you in advance.

UPDATE - PROBLEM SOLVED!!!!!!
You can thank me later - after an hour on the phone, I finally got through to a Senior Engineer.
Apperently the issues lies with GRID VIEW.
Open your Itunes, Click on TV SHOWS, then quickly change your view from GRID VIEW (Defaults to this) to List View and Viola!
We tested it out on the phone just minutes ago, my problem is solved and I suspect if you guys try this yours will be too.

How do I create more room on my MacBook Pro so I can install Snow Leopard? It says it needs 5GB and I have 4.something.

How do I create more room on my MacBook Pro so I can install Snow Leopard?
I've only got 4.something GB left and it says it needs 5 GB?
Which then begs the question, will I be able to do anything with the computer.
I think I need to get some stuff off, but do not know where to look up what is taking up the most room.
I have an extra hard drive.
I have iDisk.
I have a Time Machine, but it backs up one of my three Macs.
Thanks.

A utility like GrandPerspective is a good one for seeing what is taking up space on your hard drive.
Video and photo files tend to take up a lot of room.

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

Similar Messages

Maybe you are looking for