How do i know which ram is playing up.

[MRU]

My powermac is reporting 512mb missing. This is made up of 2 x 256 mb pieces. How do i know which piece of the 256 is dead if I cant install it in another machine (I dont have another machine that uses the same ram)

I dont think hardware test was on my powermac g5 discs (this is a 2004 model)

Is there another hardware test i can do to check it out ? Thanks

 

[bartelby]

Remove one ,if it works then it's the other one.
To check, swap them over.

 

[Mitthrawnuruodo]

...and if you want a hint before performing surgery, look in System Profiler -> Memory, that should give you a summary of which RAM is seated in which RAM bank...

 

[MRU]

I thought with it being dual powermac G5, memory had to be in pairs and so if one goes down you cant check the other as it has to be in pairs for it to work ??

so system profiler shows me memory missing from both bays ?