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

Memory for Dual Core G5 PowerMac


Post Reply New Thread Subscribe

 
Thread Tools
bfx
Guest
 
Posts: n/a

Last time I checked places like OWC listed the same memory parts numbers for the dual cpu and dual core G5's.

As the buss speeds between the two versions is significant that seems to leave the possibilities:

1 - the memory buss is limited to a slower speed identical in all G5 versions (which really is a performance waster)

2 - they're selling slower memory for the dual cores than it can use (another performance waster)

Looked up the memory configurator at Apple's site. For the G5 it lists the PowerMac G5's maximum memory capacity at 8 gb.

Not any help because it hasn't been updated for the dual core boxes.

So - what's the real deal?

I need to buy some 2 gb sticks but so far haven't found any (except uber expensive Crucial for the Quad - $1000+ for 2x2gb sticks)

bfx
QUOTE Thanks
technologist

 
Member Since: Mar 30, 2004
Location: USA
Posts: 4,744
technologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond reputetechnologist has a reputation beyond repute
Mac Specs: 12" Apple PowerBook G4 (1.5GHz)

technologist is offline
All the dual-core G5 models use the same memory. In all cases, memory bandwidth is much slower than the CPU's frontside bus, so it is a "waste" of a sort.
http://developer.apple.com/documenta...uid/TP40003031
Quote:
The main logic board of the Power Mac G5 computer has 8 slots of DDR2 SDRAM expansion for unbuffered, DDR2-533 (PC2-4200) dual inline memory modules (DIMMs) for a maximum memory of 16 GB. The Power Mac G5 accepts both ECC and non-ECC DIMMs.

Each DIMM can contain 256 MB (non-ECC only), 512 MB, 1 GB, or 2 GB of double data rate synchronous dynamic RAM (DDR2 SDRAM). At least one pair of the RAM expansion slots contains factory installed DIMMs. The Power Mac G5 supports CAS read latencies of 4 and 5.

Additional DIMMs must be installed in the bank slots in pairs of the same size and type; ECC and non-ECC cannot be paired in a single bank. The slot pairs are numbered as indicated in Figure 1.
QUOTE Thanks

Post Reply New Thread Subscribe


« Bad iMac Troubles | eMac -Software to test hardware!!!! »
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
Thread Starter
Forum
Replies
Last Post
DIY: Trick out your Intel Mini kaidomac Apple Desktops 53 02-17-2007 02:40 AM
PowerMac G5, IMac Core Duo, or .... Chosenone5376 Apple Desktops 10 05-22-2006 09:27 PM
PowerMac Core Duo knemonic Apple Rumors and Reports 3 01-13-2006 02:25 AM
powermac memory advice justin1083 Switcher Hangout 6 05-31-2005 10:35 AM

All times are GMT -4. The time now is 05:25 AM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

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?