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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Desktops > Bad to install diff. size RAMs in powermac?

Bad to install diff. size RAMs in powermac?
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badtz
Mac Elite
Join Date: May 2002
Location: Los Angeles, CA.
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Sep 15, 2004, 02:49 AM
 
Greetings,


Since you have to install the ram in pairs on the G5 ... would there be any drawbacks to installing your first pair as 1gb/per stick, and then the 2nd pair 256/per stick?



Is there any drawback to them not being all the same size RAM? [though they were installed in pairs]


if so, technically speaking ..... what's the drawback?



[curious]

thanks
     
iMacfan
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Join Date: Sep 2000
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Sep 15, 2004, 03:51 AM
 
I don't think that there would be any difference at all. It's far more important that you get good quality, reliable RAM. You could pay attention to the CL value of the new sticks, to make sure that they are the same or lower than the ones already in the machine, but even if they are not, the speed hit will be miniscule.

David
     
Big Mac
Clinically Insane
Join Date: Oct 2000
Location: Los Angeles
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Sep 15, 2004, 07:21 AM
 
Yeah, I know of no guidance from Apple or anyone else, for that matter, that frowns upon using higher and lower capacity modules in the same machine. The only important thing is that they are installed in pairs.

"The natural progress of things is for liberty to yield and government to gain ground." TJ
     
discstickers
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Sep 15, 2004, 11:58 AM
 
I thought it had to be matched pairs...
"It's not like Windows users don't have any power. I think a lot of people are happy with Windows, and that's an incredibly depressing thought." -Steve Jobs
     
videian28
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Join Date: Apr 2003
Location: fredericksburg va
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Sep 15, 2004, 04:31 PM
 
my setup is 2x256 (from apple), 2x512 from ebay (kingston valueram), 2x 256 from ebay (micron out of a dell)

no problems at all
     
badtz  (op)
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Sep 15, 2004, 05:09 PM
 
would the powermac downclock the CL2 modules if there were CL3 modules there?


or is there anyway to overclock the cl3 ram?
     
   
 
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