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A-DATA XMP Gamer memory won't POST above 1.50V.

post #1 of 5
Thread Starter 
Hello, tonight I built myself a new system and already I'm having issues with it. I have my PC loaded in my rig but don't know how to post it as my signature. So here are the specs of the system:

OS: Win7 Pro 64-bit
MOBO: Gigabyte GA-990XA-UD3 ver. 1.0
CPU: AMD FX-4100
RAM: A-DATA XPG Gamer DDR3 2000 "2x 4GB (8GB)"
GPU: Sapphire AMD Radeon HD 6950 2GB
PSU: Cooler Master Silent Pro 600W Modular
Case: Cooler Master Centurion 5
HHD: 2x OCZ Soid 3 60GB SSD in RAID0

The system went together very well POSTing the first time I fired it up, and of course with every build you have to start off in the BIOS to set it up the way you want. After doing so I loaded my OS, up to date drivers from Gigabyte's website and went ahead and upgraded from BIOS version F8 to BIOS version F10f just to make sure I had the most current "stabel" BIOS for overclocking.

First thing I noticed in the BIOS was that my RAM was registering at 1333MHz instead of 1866 which my board is capable of doing. I know it wont be able to do 2000 without manually overclocking it. So I figured I would start off and go straight for the kill. I cranked the multi up on the DRAM straight to 1866 and increased my voltage to 1.65v. Restarted the PC and did not POST resulting in me having to clear the CMOS. So I tried to set it to 1600 at 1.65v which is what the memory is supposed to be at. Once agan no POST resulting in a CMOS clear.

I then tried to increas the CPU frequency without increasing the DRAM voltage keeping it at the stock 1.50v. I ws able to get my CPU frequency to 225 giving me a 4GHz CPU speed and my RAM at 1499MHz. But beyond that and the RAM needs a bump in voltage to stay stable.

This is when I found out even if I increased the voltage on the RAM to 1.55v just .05 more volts the system would not POST making me do a CMOS clear.

So now I'm at a loss here, I can OC my CPU all day long but I paid the money for this memory in hopes of overclocking my over all system a good degree. And this memory gets very good reviews being paired with AMD hardware. Do I have bad memory? Or am I doing something wrong?

C1E
C&Q
C6
Thermal
Turbo

Those are all disabled in my BIOS, any help would be amazing. Thanks!

Current RAM timings are: 9-11-9-27
Edited by Spoonfed - 12/1/11 at 10:10pm
post #2 of 5
First off I'm not sure why you need to keep clearing CMOS if your Gigabyte mobo has the dual-BIOS feature? It should just start with the default back-up BIOS. Have you tried just a cold boot after an no boot from a BIOS change malfunction?

The F10f is a BETA BIOS with some known issues. You may want to try F9 and see if it works better as all the mobo makers are trying to sort out the many new features and BIOS options on the Bulldozer based CPUs.

That being said I'm surprised that your RAM is so sensitive to a small voltage increase. You may want to e-mail A-Data Tech with your info. so they and Gigabyte Tech can talk to see if it's a BIOS issue or RAM sensitivity issue.

The FX CPUs use 1866 MHz. frequency by default so if your RAM is approved for this it should work. If it's only rated for 1600 MHz. then it may or may not run at 1866 MHz.with manual BIOS settings.
post #3 of 5
Thread Starter 
Quote:
Originally Posted by AMD4ME View Post

First off I'm not sure why you need to keep clearing CMOS if your Gigabyte mobo has the dual-BIOS feature? It should just start with the default back-up BIOS. Have you tried just a cold boot after an no boot from a BIOS change malfunction?
The F10f is a BETA BIOS with some known issues. You may want to try F9 and see if it works better as all the mobo makers are trying to sort out the many new features and BIOS options on the Bulldozer based CPUs.
That being said I'm surprised that your RAM is so sensitive to a small voltage increase. You may want to e-mail A-Data Tech with your info. so they and Gigabyte Tech can talk to see if it's a BIOS issue or RAM sensitivity issue.
The FX CPUs use 1866 MHz. frequency by default so if your RAM is approved for this it should work. If it's only rated for 1600 MHz. then it may or may not run at 1866 MHz.with manual BIOS settings.

I've tried sending an email to A-DATA a few times already but I keep getting an error after sending the email. I'll try again tomorrow, or maybe call them during business hours. And good point with F10f being a BETA BIOS, I'll try F9 and see if that makes a difference. I know some of the Gigabyte boards with the 990 chipset had issues with CPU throttling with the F9 BIOS, maybe I'll be lucky and not have that issue. And yeah the RAM being so sensitive to such small voltage increases is making me wonder if this particular set of RAM might be a bad batch. I'll try running memtest86 for a few hours to see what that comes up with...

And I do have the dual BIOS as well, but I can almost never get it to post after a voltage change even on a cold reboot... Unless I'm just not waiting long enough...
post #4 of 5
Thread Starter 
Going to F9 did not help my voltage issue out any, and it gave me the CPU throttling issue so I went back to F10f. Tomorrow I'm going to try some GSkill RipjawX DDR3 1600 ram and see what that does. That should give me a clue to if it's the memory or my board giving me greif.
post #5 of 5
Thread Starter 
I'm starting to think it's my board that is causing the system to crash when I raise the DRAM voltage. I threw in a pair of GSkill RipjawX DDR3 1600 memory chips, the system booted up to the 1600MHz from the get go, but when I tried to raise the DRAM voltage to 1.55v from 1.50v the system would not POST. But I was able to get a good clock on the GSkill memory because it's rated at 1.50v from factory. I'm going to wait for Gigabyte to come out with a new BIOS for my board since the BIOS I'm currently on now is a BETA BIOS. Maybe that will take care of the voltage issue on the DRAM and let me use my A-DATA memory to really clock it up!
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