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Windows 7: Half of ram usable, and low transfer speeds since upgrading

05 Mar 2012   #1
alumahai

Windows 7 Home Premium x64
 
 
Half of ram usable, and low transfer speeds since upgrading

I recently upgraded my computer by replacing my motherboard, case, and power supply. At first I figured everything was done right, and it took a while before I realized that windows finds 12GB of ram, 5.99GB usable. Besides that, I also find that my transfer speeds by usb are incredibly slow, hitting a max of 5.7MB/sec, and normally sitting around 3.8.
I cant imagine what went wrong, except for fearing the worst; a bent pin on the cpu. I don't actually have any thermal paste, and cant remove/reseat it, so does anyone have any suggestions that might be causing these issues?


My System SpecsSystem Spec
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06 Mar 2012   #2
Richardc269

Windows 7 Ultimate 32-Bit
 
 

You sure you installed Windows 7 64-Bit, and not 32-Bit?
My System SpecsSystem Spec
06 Mar 2012   #3
alumahai

Windows 7 Home Premium x64
 
 

I didn't reinstall, I used the same hard drive I'd been running for the last year and a half. And yes, I'm sure its 64 bit. Doesn't 32 bit only use 4GB anyway?
My System SpecsSystem Spec
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06 Mar 2012   #4
tman69

win7 ultimate 32bit
 
 

first--a bent pin on the CPU would keep the machine from booting

second--if your listed specs are correct--mixing different Ram speeds will cause your mobo to run all the ram at the slower speed.

third--check BIOS to see how much RAM the MOBO sees.

fourth--USB problem 'may' be related to the mixed RAM
My System SpecsSystem Spec
06 Mar 2012   #5
alumahai

Windows 7 Home Premium x64
 
 

I had seen a post not long ago on a different website where a bent pin caused the same problem with the ram that I have, which is why I am worried.
As for the mobo, it also sees the 12 gb. I'm fine with running at the slower speed, My problem is with the fact that it can only use half of it.
I already tried removing the ram, and even with just the 2 corsair sticks, my computer said 8GB (3.99 usable)
Besides that, this ram in this setup worked perfectly with the old stuff, but I guess the different motherboards might cause issues...
My System SpecsSystem Spec
06 Mar 2012   #6
tman69

win7 ultimate 32bit
 
 

fifth--read documentation that came with MOBO
My System SpecsSystem Spec
06 Mar 2012   #7
alumahai

Windows 7 Home Premium x64
 
 

On what exactly? I already read the ram installation part... It didn't really say much besides informing of where to install them for dual channel modes, and I took care to follow the first time.
My System SpecsSystem Spec
06 Mar 2012   #8
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

If you had a bent pin on the MB it more then likely would not boot.
My System SpecsSystem Spec
06 Mar 2012   #9
alumahai

Windows 7 Home Premium x64
 
 

So what do I do to fix this?
My System SpecsSystem Spec
06 Mar 2012   #10
DeaconFrost

Windows 7 Ultimate x64 SP1
 
 

Does your BIOS have an option for enabling memory mapping, or something to that affect?
My System SpecsSystem Spec
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 Half of ram usable, and low transfer speeds since upgrading




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