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Compensate for Lowered BCLK

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Old 06-16-10, 12:25 PM Thread Starter   #1
zomfgcrazy
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Compensate for Lowered BCLK


RAM BEING DISCUSSED

I've found a stable BCLK for my CPU at 191, which puts my DRAM Freq. at 765.3MHz, a bit below the stock 800MHz.

Is there any way to OC the RAM alone (like the CPU multi, but for RAM) besides setting 2:6, 2:8, 2:10? Since I'm at 2:8 right now and 2:10, I believe, will be too much?

Thanks!

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Old 06-16-10, 12:36 PM   #2
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Sadly, those are the only options.
You can play with the timings though.
If it's 8-8-8-24 ram, try 8-8-8-20, or 7-8-8-24 or 7-7-7-21 or some such combination.
Use memtest86+ for testing ram stability.

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Old 06-16-10, 12:43 PM   #3
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Why not just raise the BCLK another 9MHz to 200MHz, and drop the multiplier to x20 = 4.0GHz. This way you can run w/ a DRAM frequency of 1600MHz at 2:8 and 7-8-7-24.

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Old 06-16-10, 01:41 PM Thread Starter   #4
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My computer is noticeably more stable (and a bit cooler) at 191x21 than at 200x20.

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Old 06-16-10, 04:17 PM   #5
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Quote:
Originally Posted by redduc900 View Post
Why not just raise the BCLK another 9MHz to 200MHz, and drop the multiplier to x20 = 4.0GHz. This way you can run w/ a DRAM frequency of 1600MHz at 2:8 and 7-8-7-24.
Sometimes that's not an option. I can't run 200 bclk at high multi's and had to settle with 192 x 21 (191 doesn't work for me either) due to some bclk hole with my board and or cpu.



zomfgcrazy

Personally I just settled for the slightly lower RAM speeds (never got around to messing with timings yet) as there will be no noticeable difference in the 70 mhz your losing. By all means test your timings and see if you can lower them but I doubt it will be noticeable outside of benches.

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Old 06-16-10, 04:31 PM   #6
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Quote:
Originally Posted by redduc900 View Post
Why not just raise the BCLK another 9MHz to 200MHz, and drop the multiplier to x20 = 4.0GHz. This way you can run w/ a DRAM frequency of 1600MHz at 2:8 and 7-8-7-24.
This.

Quote:
Originally Posted by zomfgcrazy View Post
My computer is noticeably more stable (and a bit cooler) at 191x21 than at 200x20.
Play with more voltages...

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Old 06-17-10, 04:38 AM   #7
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Quote:
Originally Posted by jaymz9350 View Post
Sometimes that's not an option. I can't run 200 bclk at high multi's and had to settle with 192 x 21 (191 doesn't work for me either) due to some bclk hole with my board and or cpu.



zomfgcrazy

Personally I just settled for the slightly lower RAM speeds (never got around to messing with timings yet) as there will be no noticeable difference in the 70 mhz your losing. By all means test your timings and see if you can lower them but I doubt it will be noticeable outside of benches.
ditto I got the same issue....blck hole...MSI GD65

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