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What is wrong with my RAM?

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a b } Memory
November 18, 2010 5:12:41 AM

My dad had 512mb (or so it said) of RAM. When we opened of DX Diagnostic it told us we really only had 384mb RAM. (I assume that one of the stick was 256mb and the other 128mb) which is clearly a problem. (or so I think) My dad went and bought a 1gb RAM stick at Frys today and now that stick tells him he has 895mb. when he puts it all together it tells him he only has 1150mb. (even with the two 256mb problem only equaling 384mb he should still get 1408mb RAM) Is this just a RAM problem or is there something that I just do not know about?

Thanks in advance.

More about : wrong ram

a b } Memory
November 18, 2010 6:14:25 AM

Hmmm.... I think you don't have a discrete GPU in your PC, am i right there?

If i am... then i think 256MB of RAM is dedicated to the graphics driver, that's why i doesn't show up. Quite normal, nothing to worry about there.
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November 18, 2010 2:09:03 PM

I believe you hit it on the head hell_storm2004. If you're using a 32-bit OS, there is often memory reserved for the graphics card.
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a b } Memory
November 18, 2010 3:57:04 PM

Thank you guys. There was one more problem, when my dad tried to boot into vista, it would stay in vista for about 1:30 minutes and then his screen would turn blue with white lines. Does he have a bad RAM stick?
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a b } Memory
November 18, 2010 3:59:35 PM

That would mean a BSOD... Next time when you get it note down the error name and the error code. The error code would be something like

0x0000 and so on... Note it down and post it here.
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a b } Memory
November 18, 2010 4:02:37 PM

With all that mismatched ram in there its kinda harder to say :) 
download memtest and burn it onto a cd,
remove all sticks of ram, insert one at a time and run memtest on each stick for a good hour each, that should point out any 'bad' sticks, I'm inclined to thinking the poor systems just confused with several different size/brand sticks in there tbh
Moto
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a b } Memory
November 18, 2010 4:05:09 PM

Okay we were doing memtest86, but the blue screen ONLY came up when the 1gb stick was in. It works fine when all the others are in they are different brands and RAM compacities.
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a b } Memory
November 18, 2010 5:11:20 PM

Thanks, we will do that. =D
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a b } Memory
November 19, 2010 5:48:20 AM

+1^ looks like your Dads digging out the receipt for that Gig stick,
depending on what the systems used for, you'll want 2-4Gb (Triplechannel intels aside ofc) post your/his mobo model and we can suggest some deals maybe
Moto
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a b } Memory
November 19, 2010 3:53:05 PM

We can not find the mobo model. We will do memtest86.
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a b } Memory
November 19, 2010 4:09:51 PM

Cpu-z, download and run :)  lots of useful info at your fingertips :) 
Moto
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!