2000Mhz stable on AMD!!

[magnus2882]

I have PIS series PC16000CL9 4GB Memory.
alot of AMD users have trouble running memory past 1600 and get good stability, and good performance.

I played with my bios for a week straight, I've tested several voltages and lots of different memory settings and timings.

I finally managed to get memtest running for 3 hrs straight with no errors, also I got everest burn-in running for 2hrs - no problem.

dram 1.71 volts, cpu/nb 1.3
ht reference clock 250 x 16
1.45 vcore.

100% stable 4.0Ghz cpu, 2000Mhz ram @ 9-9-9-24.

For those who claim that their downclocked ram 1600, or 1333, or 1066 ram performs better with super tight timings, I think you need better programs, or different memory.

I've tested my ram against 1800@8-8-8-24, and 1600@ 7-7-7-24 , and 1600@ 6-7-6-24, and the proof is in the pudding.... 2000 9-9-9-24 consistantly had higher memory bandwith and lower latencies.

I used passmark 7.0, benchmem, and SiSandra to benchmark the ram at those timings.

My desktop is being upgraded atm, so unfortunately I can't post screenshots.

bottom line: My memory performed best running at the speed it was designed to go at.

[GSKILL TECH]

Thank you for this information. DDR3-2000 is difficult to reach on an AMD platform. Most people downclock because they are unable to reach the rated specifications with stability, that is the reason why they downclock and tighten timings to compensate frequency. With a default CPU frequency, high memory frequency may not make a large difference if any. But for example in your case, with CPU at 4.0GHz, the memory will of course have higher bandwidth at DDR3-2000.

DDR3-1333 = 10666MB/s
DDR3-1600 = 12800MB/s
DDR3-2000 = 16000MB/s

So of course if no other hardware is limiting bandwidth, you should be hitting these numbers.

Thank you
GSKILL TECH