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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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Triumvirate
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Osmium
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For Sale: [FS] Z97 system: Xeon and RAM
$160 (USD) or best offer
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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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Osmium
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Triumvirate
(20 items)
 
Osmium
(8 items)
 
For Sale: [FS] Z97 system: Xeon and RAM
$160 (USD) or best offer
CPUMotherboardGraphicsGraphics
i7-5775C ASUS Sabertooth Z97 Mark 2 Sapphire RX 480 (reference) MSI Low-Profile 750Ti 
RAMHard DriveHard DriveHard Drive
Corsair Dominator Platinum - 2x8GB Crucial M500 - 960GB Samsung 840 - 250GB WD Scorpio Blue - 1TB 
Hard DriveCoolingCoolingOS
ADATA SP900 - 64GB Scythe BIG Shuriken 2 Rev. B PNY Quadro 600 blower Windows 10 
MonitorMonitorMonitorKeyboard
ASUS VE247H - 1080p Gateway FPD1960 - 1280x1024 Samsung S20D300 - 900p, portrait Rosewill RK9000I - Cherry MX Blue 
PowerCaseMouseOther
Rosewill HIVE 650W Riotoro CR1080 SteelSeries Rival 100 CyberPower 1500PFCLCD 
CPUMotherboardRAMHard Drive
AMD A10-7870K ASRock FM2A88X-ITX+ G.Skill Ripjaws X - 2x4GB @ 2400MT/s Samsung 840 120GB 
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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.
post #7 of 7
you're fine. no worries here thumb.gif
    
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