- Feb 15, 2013
- 6
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- 10,510
I am attempting to reach a compatible state between my MOBO/CPU/RAM. My intention is to overclock my CPU eventually, but I need the RAM to be stable before I can do that. I will eventually upgrade the CPU (latest BIOS supports AM3+ CPU), so I purchased RAM with some headroom. I should preface all of this by stating that I am new when it comes to overclocking. I have a basic understanding of the BIOS and how it works, but the more specific technicalities elude me.
Here's what I'm using:
MOBO: GA-890GPA-UD3H (rev 3.1)
CPU: AMD Phenom II x6 1055t (stock settings/CnQ disabled/Turbo disabled)
RAM: G.SKILL Ripjaws Z Series 16GB (4 x 4GB) DDR3 1866 (PC3 14900)
(Model F3-14900CL8Q-16GBZM)
The motherboard claims compatibility up to 1866MHz/32GB. I'm trying to get the RAM to run stable at 1333MHz so I can overclock the CPU without having to underclock the RAM further than 1333MHz.
I seem to be running into a lot of stability issues with the RAM. My first and most relevent question: is this RAM ever going to be stable on this MOBO? Or am I fighting a losing battle?
If not, what do I need to do to get this RAM to run stable? I've been running Prime95 with the highest level of RAM testing set to run. I've run Prime95 with my previous RAM (stock 1333MHz at 9/9/9/24) with the CPU set at 3.5GHz and it has not resulted in stability issues. Within a minute of running Prime95 with the new RAM (CPU at stock), three out of six of the tests stop working due to hardware failure. I've adjusted the timings to match (what I assume) are the appropriate timings in CPU-Z. At 933MHz (I believe this corresponds with 1866MHz as it matches the stock settings on the sticker attached to the RAM and is labeled in CPU-Z as XMP-1866), this RAM is supposed to run at 8/9/9/24. Interestingly enough, the JDEC #5 for 761MHz (I believe this would be the profile for 1333MHz) is asking for higher timings at 10/10/10/27. I've tried those timings as well as lower timings to no avail. I've kept the voltage at 1.5v. The RAM seems to work best so far at 1333MHz with timings set at 11/11/11/28 (which is the JDEC #6 profile for 800MHz). This confuses me because I would have guessed, if anything, lower timings would have worked better. I've scoured the internet for detailed insight into achieving my goal, but there doesn't seem to be a lot of helpful info that I've found. I fear that I may have purchased RAM that is just simply not compatible, but my inexperience seems to be a more likely cause. Any insight would be greatly appreciated...
Here's what I'm using:
MOBO: GA-890GPA-UD3H (rev 3.1)
CPU: AMD Phenom II x6 1055t (stock settings/CnQ disabled/Turbo disabled)
RAM: G.SKILL Ripjaws Z Series 16GB (4 x 4GB) DDR3 1866 (PC3 14900)
(Model F3-14900CL8Q-16GBZM)
The motherboard claims compatibility up to 1866MHz/32GB. I'm trying to get the RAM to run stable at 1333MHz so I can overclock the CPU without having to underclock the RAM further than 1333MHz.
I seem to be running into a lot of stability issues with the RAM. My first and most relevent question: is this RAM ever going to be stable on this MOBO? Or am I fighting a losing battle?
If not, what do I need to do to get this RAM to run stable? I've been running Prime95 with the highest level of RAM testing set to run. I've run Prime95 with my previous RAM (stock 1333MHz at 9/9/9/24) with the CPU set at 3.5GHz and it has not resulted in stability issues. Within a minute of running Prime95 with the new RAM (CPU at stock), three out of six of the tests stop working due to hardware failure. I've adjusted the timings to match (what I assume) are the appropriate timings in CPU-Z. At 933MHz (I believe this corresponds with 1866MHz as it matches the stock settings on the sticker attached to the RAM and is labeled in CPU-Z as XMP-1866), this RAM is supposed to run at 8/9/9/24. Interestingly enough, the JDEC #5 for 761MHz (I believe this would be the profile for 1333MHz) is asking for higher timings at 10/10/10/27. I've tried those timings as well as lower timings to no avail. I've kept the voltage at 1.5v. The RAM seems to work best so far at 1333MHz with timings set at 11/11/11/28 (which is the JDEC #6 profile for 800MHz). This confuses me because I would have guessed, if anything, lower timings would have worked better. I've scoured the internet for detailed insight into achieving my goal, but there doesn't seem to be a lot of helpful info that I've found. I fear that I may have purchased RAM that is just simply not compatible, but my inexperience seems to be a more likely cause. Any insight would be greatly appreciated...
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