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2x4GB: 8192MB in BIOS, 7930MB in Windows

post #1 of 7
Thread Starter 
I did a RAM upgrade on my laptop around a year ago. Rainmeter shows 7.7GB available RAM instead of the expected 8.0GB, which it does on my desktop. I tried booting with the first module in either slot, and then tried the second module in one slot before realizing that they aren't the problem, since in all three attempted combinations, I booted and got only 3.7GB available. I stopped and assumed the fourth possibility would be the same. I think it's a Windows issue, but I'm not sure what would cause it. I'm still running the preloaded stock OEM version of Home Premium 64-bit. Would a reinstall help at all, or has this ever happened before to anyone? Google is not helping.
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post #2 of 7
the problem is your laptop needs memory to run the integrated gpu. it's going to" borrow" ram from the memory installed on the board. the apus don't have dedicated vram. that's why you only have so much memory tagged as Windows useable
 
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post #3 of 7
Do you have an integrated gpu using your system memory for video purposes?
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post #4 of 7
Quote:
Originally Posted by CynicalUnicorn View Post

I did a RAM upgrade on my laptop around a year ago. Rainmeter shows 7.7GB available RAM instead of the expected 8.0GB, which it does on my desktop. I tried booting with the first module in either slot, and then tried the second module in one slot before realizing that they aren't the problem, since in all three attempted combinations, I booted and got only 3.7GB available. I stopped and assumed the fourth possibility would be the same. I think it's a Windows issue, but I'm not sure what would cause it. I'm still running the preloaded stock OEM version of Home Premium 64-bit. Would a reinstall help at all, or has this ever happened before to anyone? Google is not helping.

your hd series integrated gpu is using some of your ram for gpu purposes.
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post #5 of 7
Thread Starter 
It's an integrated 4250 mobility that apparently can use up to 3064MB. I don't think it's technically an APU (integrated in processor) but rather soldered onto the motherboard. If it's allocating a minimum of 256MB for the GPU, then that leaves 6MB unaccounted.
Edited by CynicalUnicorn - 9/27/13 at 5:46pm
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post #6 of 7
The 6MB could just be a Windows calculation/rounding error, or it's reserved for some other hardware. Either way it's nothing to worry about.
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post #7 of 7
you're fine. no worries here thumb.gif
    
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