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ThinkStation C30 - Windows 7 32bit only 1.95Gb usable RAM

Posted on 2013-01-15
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Last Modified: 2013-11-08
We have a ThinkStation C30 running WIndows 7 32bit, it has 4Gb Ram installed and recognized but only showing 1.95Gb as usable.

Lenovo have said that the NVIDIA Quadro 600 1Gb graphics card uses 1 GB of the 4GB and that is why it is reporting only 1.95Gb as usable (given its 32bit and the max it would have as useable is 3 - 3.5Gb).

It is not an onboard graphics card but is some-how linked to the processor.

Would some-one be able to explain this to me as I dont understand the concept of the graphics card taking the RAM, in the specs it said it was a 1G card.

Also I ran a BIOS update which said it fixed this RAM problem but it didnt make any difference, I am wondering if I need to make changes in the BIOS.
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Question by:purbrick
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11 Comments
 
LVL 13

Assisted Solution

by:Gabriel Clifton
Gabriel Clifton earned 100 total points
ID: 38780924
Sometimes even though a video card has on-board memory, if the BIOS specifies, the system can allocate more memory for the card. Also, few video cards will say something like 1gb memory but it is not on-board but rather it can handle / ask for that much memory from the system. In the BIOS adjust the amount of video memory and see if that helps.
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by:Tony Giangreco
ID: 38780933
If it's Win7 starter, it's limited to 2 gig.

What version of Win 7 do you have?
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by:purbrick
ID: 38780935
I've look in the BIOS but cant see anything about video memory.  What should I be looking for?
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Author Comment

by:purbrick
ID: 38780938
Its running Windows 7 Professional 32bit
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nobus earned 400 total points
ID: 38781685
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Author Comment

by:purbrick
ID: 38785208
Thanks the toms hardware article was fascinating, I'd love to see something similar but instead of games used Design Software.

The MS article explained more.  I have checked and the Hardware Reserved is 2098MB which leaves me with the 1998MB to be used for the system.  I'm not sure what I can do now.  There doesnt appear to be anyway I can force the BIOS to not reserve so much memory.

Fantastic article by Mark Russinovich
http://blogs.technet.com/b/markrussinovich/archive/2008/07/21/3092070.aspx.

I've attached a screen shot of the device memory usage.

If you have any suggestions (other than move to 64bit Windows) that would be great.
Doc1.docx
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Author Comment

by:purbrick
ID: 38785262
I'm also going to check the memory configuration and am considering if the system will recognize 2 x 2GB Ram better than 1 x 4GB Ram after reading some articles about incorrect RAM in slots?
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Expert Comment

by:nobus
ID: 38786027
Mark  certainly knows what he's talking about
i doubt that 1 4 GB stick will help -  it will (afaik) assign it just the same way it does now

the only solution for more ram, is using 64- bit OS , but then the mobo must agree with more ram also
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LVL 92

Expert Comment

by:nobus
ID: 38786037
according to this site, it takes up to 128 Gb :  http://support.lenovo.com/en_US/downloads/detail.page?DocID=PD023424
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Author Comment

by:purbrick
ID: 38786808
Mobo is ok, I'll need to look at software and try to get running under 64bit
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LVL 92

Expert Comment

by:nobus
ID: 38786847
that looks like it is the best solution!
it will also speed up this PC considerably
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