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8gb installed memory, 3.95gb available

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October 22, 2011 8:13:59 AM

Hey everyone!

First post here, I just completed my new build, everything is running well, except for my memory! Windows is saying 8gb is installed (which is true), but only 3.95gb are available.

Specs:

Asus Sabertooth 990fx AM3+ motherboard
AMD fx 6100 six-core @ stock 3.1ghz
G.SKILL Sniper 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBSR


Thanks guys and gals!
October 22, 2011 2:36:14 PM

If you are running Windows Vista/7 32bit then it will only use up to 4gb of ram.
a b } Memory
October 22, 2011 2:39:51 PM

^+1 true!
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a b } Memory
October 22, 2011 3:01:24 PM

Yes, you need a 64 bit OS to address more than 4 gig of RAM.
October 22, 2011 6:44:32 PM

I am running windows 7 Home 64bit
a b } Memory
October 22, 2011 9:04:03 PM

kazz330 said:
I am running windows 7 Home 64bit

Sys config utility(msconfig)
Boot tab -advanced options
uncheck max memory
If that isn't it you have other issues.
a b } Memory
October 22, 2011 11:54:27 PM

Try running the ram at lower speeds.

Also, I assume all the cpu pins looked ok when you installed it?
October 23, 2011 6:56:34 AM

I tried your thought davcon. Didn't work :( . My ram of course is the only one not listed in the ASUS list. I'll use this for now, and then I guess I'll buy new ram once I'm able to.
October 23, 2011 8:34:13 PM

So what you are saying is that where windows under system tab in control panel it says 8gb. So I am thinking that you use some type of utility in windows to check to see how much ram is available; something like task manager? Or is it the Asus bois that only registers 3 something amount of memory. If it is in the bois then what you need to do is to try a different memory setting. Your memory is set too high or does not have enough voltage. It could also be a performance enhance feature in your bois for the the memory! Not to say you can't run with this feature on but for now try running with it off. Make slight adjustments to the memory voltage,stepping and so on. Benchmarking the system after each adjustment. Once you have respectable benchmark numbers then go back into bois enable performance feature at a low level(processor speed) with you new found memory voltage,stepping adjustments.
If it is task manager that says you only have 3. something of memory available that is due to the programs you are running in windows using almost half of you memory at that point.
a b } Memory
October 23, 2011 10:17:04 PM

kazz330 said:
I tried your thought davcon. Didn't work :( . My ram of course is the only one not listed in the ASUS list. I'll use this for now, and then I guess I'll buy new ram once I'm able to.

Do you have a gpu or onboard vga = some system memory will be reserved for onboard vga of course.
October 24, 2011 8:10:27 AM

GPU... Radeon HD 6950.
a b } Memory
October 24, 2011 12:31:25 PM

kazz330 said:
Hey everyone!

First post here, I just completed my new build, everything is running well, except for my memory! Windows is saying 8gb is installed (which is true), but only 3.95gb are available.

Specs:

Asus Sabertooth 990fx AM3+ motherboard
AMD fx 6100 six-core @ stock 3.1ghz
G.SKILL Sniper 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBSR


Thanks guys and gals!



try reseating both memory modules
!