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Need help to configure new RAM. Asus motherboard.

post #1 of 5
Thread Starter 
Hello, I need help configuring my motherboard to run some RAM I've recently purchased. I'd like to run it at frequency inteded by the manufacturer (1600). I've made several attempts at changing the settings in the bios but I'm unable to get the RAM to run at the higher frequency and have a stable computer.

Everytime I try to change something things stop working right. The main problem I get is the PC not shutting down fully on restart and refusing to output video to the monitor. I'm able to fix this by doing a reset(after which I get the monitor back), going back into the bios and undoing any changes I've made.

I've searched around several places but haven't found a way to optimize the RAM. It does seem to work fine at the safe settings. The manual for the motherboard isn't too great for explaining how to configure ram.

here's some of my system.

OS- win 7 ultimate 64bit
Board- ASUS M4A79T Deluxe
Processor- AMD Phenom 2 X6 1090t 3.21 GHz
memory- 16 GB worth of kingston hyperx blu DDR3 1600

data sheets to the RAM in link.
http://www.valueram.com/datasheets/KHX1600C9D3K2_8GX.pdf

any adivce or feedback would be appreciated. smile.gif

Thanks,

MAtt
Edited by matacks - 5/19/12 at 2:44pm
post #2 of 5
First you need to get the CPU-NB up to 2400mhz to handle the 1600mhz ram. What is it at now?
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
1090t ASUS Sabertooth 990fx PNY GTX470 2x4g GSkill 1333 
Hard DriveOptical DriveCoolingOS
2x 500gig WD DVD ±RW Black TRUE Vista Ultimate SP2 
MonitorPowerCase
Gateway FPD2275 Corsair HX1000 Antec 1200 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
1090t ASUS Sabertooth 990fx PNY GTX470 2x4g GSkill 1333 
Hard DriveOptical DriveCoolingOS
2x 500gig WD DVD ±RW Black TRUE Vista Ultimate SP2 
MonitorPowerCase
Gateway FPD2275 Corsair HX1000 Antec 1200 
  hide details  
Reply
post #3 of 5
Thread Starter 
Right now the CPU-NB frequncy is set to (auto) but this should be set to 2400mhz?

here are the other settings I've tried. Currenty many of these settings are set back to (auto) or to what they were originally as I've undone all changes to go back to safe mode. A few of these settings weren't changed as thats what they were originally set to. I found these instructoins form somebody on internet page.

Set DRAM frequency to 1600
Set enable clock to all DIMMS (disabled)
Set memory hole mapping to (enabled)
Set DCT unchanged mode to (enabled)
Set DRAM command rate to (2T)
Set DRAM timings to (9-9-9-27)
Set DRAM voltage to (1.65) - actually the bios will only let me set this to 1.64 or 1.66

Set CPU-NB volatge to (1.2 or 1.3) I actually havn't tried this last one but saw it in some instructions to configure a different RAM. Right now I believe this is (auto)
Edited by matacks - 5/19/12 at 2:41pm
post #4 of 5
Thread Starter 
Well I tired to set the CPU-NB up to 2400mhz along with all those other settings. I also tried 2600mhz but still no good. I had to undo all changes to get things working normally. Any other suggestions?

Did I just buy crappy ram or is there another way to get it working right?
Edited by matacks - 12/6/11 at 12:30pm
post #5 of 5
In my experience, Asus mobos are VERY RAM sensitive. I'd contact Kingston Tech Support to see if this RAM is approved for AMD Phenom II CPUs and if it will OC on your specific model mobo. With 16 GB. of RAM your mobo may not allow you to OC it to 1600 MHz. as many mobos default to the CPU RAM frequency, i.e. 1333 MHz. You can check with Asus Tech Support to see if this is the issue.

I also see this is a 2x 4 GB. kit so you must be using two RAM kits to get 16 GB. Doing this does not always work at the OC speeds either as the kit OC frequency is based on TWO DIMMs not four DIMMs, which may only function at 1333 MHz. There is a lot to know about DDR3 RAM.
Edited by AMD4ME - 12/6/11 at 5:57pm
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