Most recent revision of this page date Sept 17 2008. This Web page has Memory for PowerMacs and other Apple Mac computers and some cards and accessories. Prices and models change often so monitor these pages! For the other Apple Macintosh parts, systems, printer and other items we sell, check our Mac computer page.
Please consult documentation for your Mac before buying memory. I
have a brief document on Macs and memory you
may want to look at. Check my Mac Web pointers
page for links to Apple's tech docs also - particularly ones on
memory. Go to
Apple's
tech specifications page to access a list of older Apple systems.
Also check Apple's archives before 1997
via this link. The search page has a checkbox "archive: include content
created prior to 1997" which you MUST check off.
As of 2004, relevant Apple documents are:
Power Macintosh: Using FPM, EDO, SDRAM, and SGRAM
Power Macintosh: Memory Configurations
A site search may find specific references on using memory such
as 64MB 72-pin SIMMS which are unusual. If you want to know how to read
the funny numbers on the DRAM chips themselves (to determine capacity,
FPM or EDO, etc) check this document or
find similar documents on the Web.
To order, please follow this link for
ordering information, terms and conditions, and info about
orders outside the USA.
I cannot come up with a straightforward, simple explanation of memory requirements for iMacs or eMacs or G4's. Therefore it is up to you the customer to determine what memory you want for your Mac. No returns on memory purchases. For these older Macs, memory is generally too cheap to fuss with or ship back and forth. We MAY be able to test memory on selected Macs, at our discretion. (We've already tested memory on an Apple computer before stocking it.)
Many memory selling Web sites offer recommendations and testing tools. Apple offers some technical guidance on their Web site. The OS9 "System Profiler" report includes a speed description of RAM in iMacs and later systems. Again, KNOW WHAT YOU WANT TO BUY, please do not ask me, I am in a "conflict of interest" to advise you and good advice is not easy.
PC100/66 CL3 or 322 SDRAM, -10 type chips: see "grey" PowerMac G3 memory below. Not for Macs above 350MHz.
PC100 CL2 or 222 SDRAM, -7 or -75 type chips:
128MB $10, 256MB $15, 512MB $35
PC133-labled SDRAM: The PowerMac G3 desktop or minitower, platinum (grey) model uses 3.3V PC-100 SDRAM, 168-pin, 100MHz or -10 speed,
64 bit wide, unbuffered. Faster RAM will also work. The various G3 motherboard revisions can all use 32M, 64M, 128M; revision 3 can use 256Mb SDRAM. Physical space may limit the height of SDRAMs you can use.
my PowerMac page for info about the G3 grey/platinum models and their revisions.
PC 66/100 SDRAM for B&W G3's at or below 333MHz: 128MB $8 256MB $12, 512MB ???
Almost all the PowerMacs, except the very oldest PowerMacs and the later G3's,
use 168-pin 5V DIMM DRAM memory. For your Mac, please
check your technical specifications or the reference Web links at the top of this page to be sure.
We sell PowerMacs on our Powermac Web page.
168-pin 5V (FPM) DIMM DRAM for the 7200, 7300, 7500, 7600, 8500, etc.: 168-pin 5V EDO DIMM DRAM for the 5400, 5500, 6400, 6500: Some older PowerMacs use 72-pin SIMM memory; for instance the 6100, 7100,
8100. Check our prices below in our SIMM section. Macs which use SIMM memory are the earliest, pre-PowerMac
systems such as the SE, II series, and others which use the 68000 or 68030
or 68040 processor. Some Macs with PowerMac processors also use SIMMS, so
for your Mac check your tech specs or the references at the head of this page to be sure.
Go to our Mac home page for specific Mac systems we sell.
30-pin SIMM RAM memory is suitable for Mac Plus, SE, SE/30,
Mac II, IIci, IIsi, IIcx, other systems. Please confirm
these will be compatible with your system when you order. For instance,
Mac II's don't use standard 4MB or 16MB SIMMs; Mac Plus and SE can't use
ANY 4MB SIMMS, etc.. Memory upgrade modules for the Mac Classic: upgrade from one or two megs to
FOUR megs! Apple RAM board with 3 megs of SIMM RAM, 4 Megs total: $25.
64-pin SIMM memory was used on The Mac IIx, Mac IIfx, and Laserwriter IIntx;
my supplies are limited but we have them! Also, check my
Mac IIfx section for offers with those systems. 72 pin SIMM (FPM) RAM memory for some of the 68030 and 68040 series, Quadra, Centris
and later Macs including some PowerMacs such as the 6100, 7100, 8100, 5200, 5300. 4 Meg $2; 8 meg $2; 16 meg $5; 32 meg $12
72 pin SIMM EDO RAM memory. Some Macs will run pairs of these faster
than FPM memory, but in most systems they will work OK. It's up to you to decide.
16 meg $8; 32 meg $16
64MB 72 pin SIMMS, limited number. only warrented for 6100 systems,
but we will try them on other systems. Check the Web to see if YOUR
system can use these. $25 each as available.
VRAM and cache are sometimes available, describe your Mac model and ask for prices!
Also check for your Mac model on our Web site, we may have VRAM priced with it. 68-pin VRAM, 256K, example Apple p/n 630-0044, 820-0269; for 7100 video cards. $4 Cache is the memory associated directly with the processor. Use of it
speeds up execution of programs. Typically it is added to a ROM or L2 socket.
Cache is sometimes available from me, describe your Mac and ask for prices!
Also check for your Mac model on our Web site, we may have cache priced with it.
128MB $15, 256MB $25, 512MB $55
"grey" PowerMac G3 "SDRAM Memory
PowerMac DIMM Memory
8MB $2, 16MB $3, 32MB $6, 64MB (limited supply) $15, 128MB (one) $35
(will also work in 7300, 7500, 7600, etc. but NOT in 7200 or 4400 systems)
8MB $2, 16MB $4, 32MB $7, 64MB $20
If you order EDO, let me know if you will accept FPM and a rebate of the
price difference. We may be out of 64Mb EDO, ask.
SIMM Memory
256 Kb 30 pin SIMMS: $1
1 Meg (1Mb) 30 pin SIMMs: $3 each, minimum order $12. 80ns or faster
4 Meg (4Mb) 30-pin SIMMs: $10 each.
16 Meg (16Mb) 30-pin SIMMs: rare, very limited supply, ask about price and availability
256K 64-pin memory SIMMS: $4 each.
1 Meg 64-pin memory SIMMS: $12 each.
4 Meg 64-pin memory SIMMS: $25 each. (Not for LW IIntx!).
Please confirm these will be compatible with your system. Check Apple's Web site
for memory configurations and sizes, look at my list of
Apple Web pointers page for specific links. One issue with 72-pin SIMMS is whether
memory is on BOTH sides or ONE side of the SIMM; some printers and systems treat double sided SIMMS like two seperate SIMMS.
VRAM Memory
68-pin VRAM, 512K, example Apple p/n 820-0625; for 7100 video cards. $10
333-1072, Apple VRAM for PowerMac 7300, 7600, etc. 1MB, $5 each
Cache Memory
Herb Johnson
New Jersey, USA
here's how to email @ me and order
Copyright © 2008 Herb Johnson