New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

Start a Discussion

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

Old G3 Memory Upgrade question

Post Reply New Thread Subscribe

Thread Tools
Posts: n/a

Question for the Apple lovers.

I m working on a G3 Powermac 233mhz pc.

Defiently runs pc100 but I was told it could run pc133 and just downclock to pc100 speeds so that it will run.

I got a 128mb stick of pc133 that does work on PCs but it wont work here. I got 2 32 mb sticks in here that work but these wont.

So im thinking its one of two things.

Either this old mac uses diff voltage for its memory and wont power these OR its a mobo switch or setting im missing.

Comptuer turns on but I get no video.

Ideas suggestions?

QUOTE Thanks
Posts: n/a

Mac and PC memory may have the same specs but often the PC memory won't work in a Mac. The one setting that may affect it is that you should press and hold the CUDA button on the main board after the memory is installed. (Push it in, say "one thousand, two thousand" and let it go.) Don't under any circumstances push it twice. The CUDA button is a small, round button, usually red or black rubber, on a square, metal base. You can get specific info at sites like or Apple.
QUOTE Thanks

Post Reply New Thread Subscribe

« Can't boot with a Seagate Barracuda on an old iMac | I need some serious HELP »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread Starter
Last Post
G4 Yikes PCI Memory Question flowforth Apple Desktops 4 01-16-2005 06:09 AM
memory question oo5yolo10 Apple Notebooks 8 11-19-2004 10:43 PM
Powerbook 15" Aluminum Memory Upgrade JayJay Apple Notebooks 12 07-22-2004 12:24 PM
HELP! Memory upgrade nightmare Nobody Apple Notebooks 6 01-14-2004 02:33 PM
Power PC G3 Memory question Malibu Other Hardware and Peripherals 1 10-13-2003 08:54 AM

All times are GMT -4. The time now is 04:59 PM.

Powered by vBulletin
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.

Welcome to

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!

(4 digit year)

Already a member?