mac g5 ram issues

macblac · macblac #1 (**permalink**)

01-22-2010, 09:41 AM

I know someone may have asked this question .. but I am tired of scrolling. Anyway , I have a g5 1.8gz late 05 model..it is not responding to the 1g ram I just installed? it originally came with two 512mb sticks .and I just installed a 1 gig stick and the system profiler only shows one gig.. I double checked to see if I had pushed it in all the way ...and it is..
dont know what else to do ..help me out guys

Reel1 · Reel1 #2 (**permalink**)

01-22-2010, 11:31 AM

Doesnt the ram have to be put in pairs?

pigoo3 · pigoo3 #3 (**permalink**)

01-22-2010, 11:59 AM

Quote:

Originally Posted by Reel1

Doesnt the ram have to be put in pairs?

You are absolutely correct!

OP...you need to install ram in your G5 desktop in pairs...so you need another 1 gig stick of ram.

- Nick

sabot · sabot #4 (**permalink**)

01-22-2010, 03:44 PM

as already stated the memory MUST be fitted in Matched pairs but are you sure you have the right memory?
you say your machine is a late 05 model but the only late 05 models i know of are the 2.0Ghz dual core, the 2.3Ghz dual core & the 2.5Ghz Quad

even the early 2005 models had different ram to the late 2005 spec
early has PC3200 DDR 184pin sticks
late has PC4200 DDR2 240 pin sticks

check which model you have, if unsure download mactracker which should help

harryb2448 · harryb2448 #5 (**permalink**)

01-22-2010, 05:03 PM

And 1.8GHz G5's are actually early 2004 models

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macblac #1 (permalink)
Member Since: Jan 22, 2010 Posts: 1	01-22-2010, 09:41 AM I know someone may have asked this question .. but I am tired of scrolling. Anyway , I have a g5 1.8gz late 05 model..it is not responding to the 1g ram I just installed? it originally came with two 512mb sticks .and I just installed a 1 gig stick and the system profiler only shows one gig.. I double checked to see if I had pushed it in all the way ...and it is.. dont know what else to do ..help me out guys
	QUOTE Thanks

Reel1 #2 (permalink)
Member Since: Nov 29, 2006 Location: Barrie, Ontario, Canada Posts: 606 Mac Specs: 2.16 GHz Intel Imac Core 2 Duo//MacBook 1.83 Core 2 Duo//G5 Power Mac	01-22-2010, 11:31 AM Doesnt the ram have to be put in pairs?
	QUOTE Thanks

sabot #4 (permalink)
Member Since: Nov 04, 2009 Location: Surrey/Hants border UK Posts: 81 Mac Specs: "Cypher" Powermac G5 2.3 DualCore QuadroFX4500 23" cinema display	01-22-2010, 03:44 PM as already stated the memory MUST be fitted in Matched pairs but are you sure you have the right memory? you say your machine is a late 05 model but the only late 05 models i know of are the 2.0Ghz dual core, the 2.3Ghz dual core & the 2.5Ghz Quad even the early 2005 models had different ram to the late 2005 spec early has PC3200 DDR 184pin sticks late has PC4200 DDR2 240 pin sticks check which model you have, if unsure download mactracker which should help
	QUOTE Thanks

harryb2448 #5 (permalink)
Member Since: Nov 28, 2007 Location: Nambucca Heads Australia Posts: 18,824 Mac Specs: iMac i5 2.7GHz, 16GB memory, OS 10.10.2	01-22-2010, 05:03 PM And 1.8GHz G5's are actually early 2004 models
	QUOTE Thanks

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