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Squeezing all shes got.

post #1 of 32
Thread Starter 
Ok after many stability testing failures I have got this far. Ran Prime95 for 7 hours without any errors. Best overall performance

CPU: (20 x 210) 4200Mhz @1.456v
Temp: Idle 30C | Load 54C (7 hr. Prime95)
NB: (14 x 210) 2940Mhz @ 1.3v
Temp: Idle 36C | Load 68C
RAM: (8 x 210) 840 1680Mhz @ 1.52v
Timings: 7-8-7-24-2t-40t Haven't messed around too much, yields a 10.8GB/s Read and 9.2GB/s Write.

The H70 is working alright, I was expecting better results though.

890FXA-UD5 rev 2.1 BIOS F3
AMD 1090T w/ Corsair H70 (Push/Pull Exhaust)
Otherwise stock cooling.

Give me some tips other than getting rid of the H70 and making a custom loop I will someday.
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post #2 of 32
i think youll find that 4.2ish is the most youll get outa your 1090T unless you get a far better board like a Asus Crosshair IV Extreme. or you use some form of extreme cooling (i dont mean custom water loop i mean chilled water or better, like liquid nitrogen or phase cooling)
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post #3 of 32
Looking good so far. If you can get those timings down to 6-8-6 (guaranteed on pretty much any set of ECOs) you could probably pass 11GB/s MaxxMem
post #4 of 32
Have you tried a higher FSB? Like 300 x 14 (4200 MHz like you have right now) and then 300 x 10 for the NB (3000 MHz) and then 300 x 6.66 for the RAM (2000 MHz, but this might be too much unless you want to loosen the timings by quite a bit) or 300 x 5.33 for the RAM (1600 MHz, a little slower than what you have now, but should get you some slightly tighter timings).
Edited by decimator - 1/26/11 at 12:35pm
post #5 of 32
Thread Starter 
Quote:
Originally Posted by xd_1771 View Post
Looking good so far. If you can get those timings down to 6-8-6 (guaranteed on pretty much any set of ECOs) you could probably pass 11GB/s MaxxMem
For some reason I can not get CL6 timings stable or even when it boot I do not yield higher scores.

I dialed in the CPU at 4232MHZ@1.44v and 3038Mhz@1.275v NB
1738Mhz ram at same timings. I will Prime95 tonight and see if its truly stable and leave it at that for now.
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post #6 of 32
Thread Starter 
Quote:
Originally Posted by decimate View Post
Have you tried a higher FSB? Like 300 x 14 (4200 MHz like you have right now) and then 300 x 10 for the NB (3000 MHz) and then 300 x 6.66 for the RAM (2000 MHz, but this might be too much unless you want to loosen the timings by quite a bit) or 300 x 5.33 for the RAM (1600 MHz, a little slower than what you have now, but should get you some slightly tighter timings).
I did I was able to boot and yielded a 10.6GB/s MaxxMem+
9-10-9@2000Mhz at 1.59v which was highest out of all other settings but it wouldn't boot again
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post #7 of 32
That's awfully odd, all ECO kits should be able to hit 6-8-6. Unless they suddenly changed to lower-binned ICs. Have you tried raising the voltage? (i.e. 1.5-1.6V)

Someone lately with the ECOs at 6-8-6 and NB at 3000Mhz got a very respectable 11.3GB/s in MaxxMem.
post #8 of 32
I agree with xd 1771 because he just helped me get mine running like this (see attachments). First one was fairly easy at NB of 3010MHz with 1.6v and stable. The second one is what I'm currently working to get stabilized with NB at 3260Mhz and ram voltage at 1.6-1.65v.

Maybe I can help more after I get the new Rasa RS360 installed here shortly, and join you in the 4.2 GHz club lol.

 
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post #9 of 32
Yep, that second pic was the result I was talking about. Higher NB clock can really make a nice difference (I'm going to play with mine tomorrow, see if I can get closer to 3Ghz NB). 1.6V is about right for most ECOs and 6-8-6 timings.
EDIT: Just noticed that you're running at a higher frequency (1738Mhz); this may be holding back your 6-8-6 timings. My ECOs crap out at 6-8-6 past around 1660Mhz (as in, non-benchmark stable, OS starts to freeze up, etc.). Then again I run 4x2GB, no two kits overclock the same I guess. Most ECOs can get to ~1800Mhz+ on the default 7-8-7 timings.
post #10 of 32
Thread Starter 
Quote:
Originally Posted by xd_1771 View Post
That's awfully odd, all ECO kits should be able to hit 6-8-6. Unless they suddenly changed to lower-binned ICs. Have you tried raising the voltage? (i.e. 1.5-1.6V)

Someone lately with the ECOs at 6-8-6 and NB at 3000Mhz got a very respectable 11.3GB/s in MaxxMem.
At 1.59v it wouldn't boot, but at 1.61v it worked.
6-8-6-24-40-2t 1600Mhz and NB at 3.0Ghz, it only reached a 10.2GB/s on MaxxMEM
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