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1600 Mhz RAM - 8,00 GB (5,99 GB useable)

post #1 of 8
Thread Starter 
While searching around for a solution to this problem i have found many threads describing similar problems, but none with a fix that worked for me.

I have 4x2GB 1600 Mhz corsair modules and they goes as 1333 Mhz as default on my newly installed MSI 990FXA-GD65 motherboard. Im quite new to overclocking and such but when i change the speed to 1600 Mhz in BIOS windows goes from "8,00 GB" to "8,00 GB (5,99 GB useable)".

If anyone have an explanation why this is and have a fix for it i would be most grateful. =)

PS: I have checked msconfig for maximum ram usage and i have adjusted volt to match the 1,65 need for the corsair modules.
post #2 of 8
I had similar issues with an older build. Reseatting the ram fixed the issue for me. Just take the ram out, switch which slots they're in and then be sure they're seated properly. With some motherboards you have to really put quite a lot of force on the ram to get it to seat fully, this may or may not be the case with yours.
post #3 of 8
Are you using onboard video?
post #4 of 8
Thread Starter 
Thank you for the fast answer, repositioning them worked like a charm =D

Another thing that i forgot to add in the initial post is that 2 modules are older than the other two and is therefor version 3,2 while the newer ones are 6,0. I have the same versionss in the same dual channels, but i wonder if this newer "version" does any difference performance wise and if they are interchangeable with each other in all aspects?
post #5 of 8
Your wording is a little ambiguous.
Do you mean?:

Slot-A: version 3.2
Slot-B: version 6.0

Slot-A2: version 6.0
Slot-B2: version 3.2

Basically so you have an old and new module in a channel together? I doubt it would have any significant problems, but why would you want to?
post #6 of 8
No, he's saying

Slot A: 3.2
Slot B: 6.0

Slot A2: 3.2
Slot B2: 6.0

Which seems like the way to go to me, I've always done it this way.
My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II x2 560BE (unlocked to Phenom II x4 B60) Biostar TA890FXE Radeon HD5670 4GB (2x2GB) Kingston HyperX Blu 1600mhz DDR3 
Hard DriveHard DriveOptical DriveCooling
64GB Crucial C300 SSD Hitachi HDD LG 24x Blu-Ray/DVD-DL Reader/Writer Cooler Master Hyper 212+ 
OSMonitorKeyboardPower
Windows 7 x64 Ultimate Edition Gateway FPD1730 Logitech G11 OCZ 600w Mod Xstream-Pro 
MouseAudio
Logitech M-UV69 Soundblaster Audigy 2 ZS Platinum Pro 
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My System
(16 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II x2 560BE (unlocked to Phenom II x4 B60) Biostar TA890FXE Radeon HD5670 4GB (2x2GB) Kingston HyperX Blu 1600mhz DDR3 
Hard DriveHard DriveOptical DriveCooling
64GB Crucial C300 SSD Hitachi HDD LG 24x Blu-Ray/DVD-DL Reader/Writer Cooler Master Hyper 212+ 
OSMonitorKeyboardPower
Windows 7 x64 Ultimate Edition Gateway FPD1730 Logitech G11 OCZ 600w Mod Xstream-Pro 
MouseAudio
Logitech M-UV69 Soundblaster Audigy 2 ZS Platinum Pro 
  hide details  
Reply
post #7 of 8
Quote:
Originally Posted by DizturbedOne;14417458 
Slot A: 3.2
Slot B: 6.0

Slot A2: 3.2
Slot B2: 6.0

Which seems like the way to go to me, I've always done it this way.

Yup, that's how he should do it (obviously tongue.gif). Just wasn't sure based on his wording.
post #8 of 8
Thread Starter 
yeah thats how ive done it, but I was just wondering out of curiousness if there is any noticeable difference at all with the different versions ^^
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