The AMD Phenom II OC'ers Club

[cdawall]

That's some superfast SuperPi. lol

cdawall deserves a friggen medal for his work.

I bow to you cd, you are tpu's phenom king of overclock!

aww thanks

 

[tjwo94]

Okay...made a little progress, any suggestions?

 

[ShadowFold]

Dude, 1.35v? You can pump 1.55v into these bastards before they start to die!
KEEP GOING

 

[OzzmanFloyd120]

Isn't 1.35 stock for the 940? 3.8Ghz isnt' back for stock.

 

[tjwo94]

Nah, its at 1.5v, it's not properly reporting. I have tried several freq's in the upper 3800 and 3900 range, without any luck. My temps are still good with an excellent air cool setup. Wondering if my chip is just topped out.

 

[Super XP]

Nah, its at 1.5v, it's not properly reporting. I have tried several freq's in the upper 3800 and 3900 range, without any luck. My temps are still good with an excellent air cool setup. Wondering if my chip is just topped out.

Stock is 1.35v for the 940. But I also run into the problem with missreporting using CPUID. Sometimes it doesn't even display the volts when I try for a 4GHz at 1.6v OC.

 

[tjwo94]

Yeah, I get a little annoyed with it because I see it reporting properly for some people and not for others. Strange.

 

[tjwo94]

Here is a question and I'm looking for some suggestions here and perhaps a place for decent reading of the topic. Is it going to be harder to increase my overclock with my current RAM timings at 5-5-5-15 2T @ 1066? If so, i'm looking for a little guidance what kind of timings I should be looking at and how fast. Seems the higher I try to go, the more problems I have with stability, however my cpu temp is currently at 37 on idle @1.5v and I believe I could drop the volts if I wanted. I know I should be able to get 3.9 stable and still maintain good temps with my air cooling.

 

[tjwo94]

Okay, here is my latest result. Tested and confirmed stable using 3DMark06 and Science Mark 2.0.
CPU-Z Validated. Noticed a significant improvement in my 3DMark score, finally breaking 19000.
As you can see idle temps on air cooling are fantastic and they are also very good under load. Motherboard temp is also acceptable.

Unfourtunately I have seen a decline in the Science Mark score, I assume this is due to reducing my RAM speed from 1066 to 800. I simply could not break 3.8 ghz at 1066.

I would still like some advice on timings to try with this setup having the RAM at 800. Will lower latency timings result in better performance? If I can get better timings I think I can break over 3.9 ghz on air and stable. I have had several 3.9 setup boot up but they have all crashed when testing despite changes in voltage, so my next guess is the RAM timings need to be better. Let me know what you think I should do.

Thanks!!

 

[VulkanBros]

X4 940 Be
M3a79-t

 

[Wartz]

tjwo94 how are you getting such a high score? I'm always around 15,500 with a similar overclock to yours and a HD 4870 at 820/1100.

Perhaps its something to do with your HT link and NB clocks? mine are still at stock speeds. Does that actually make that much difference in 3dmark?

 

[tjwo94]

My HT Link is set to auto as well as the voltage in my bios. However I did crank up my NB from the stock/default of I believe is 1800(maybe 2000). My NB is now at 2860. So yes, everytime I increased my NB multiplier, I saw a significant incease in 3DMark performance. The HT Link does impact that performance, however; that impact is less significant. Once you have your system tested and confirmed stable, I suggest *slowly* increasing your NB clocks, however, be sure to increase the voltage as well if needed. Be sure to keep an eye on your motherboard temps, if your cooling is not sufficient, NB can overheat your board.

 

[tjwo94]

Something else to consider, In my case I am running *2* 9800GTX+'s SLI, that could also make a significant difference in my scores compared to yours if you're running 1 card at 512. I was also posting scores in the 15600 range when only benchmarking with one card enabled. It jumped to the mid 18000's once I enabled SLI.

 

[Wartz]

Something else to consider, In my case I am running *2* 9800GTX+'s SLI, that could also make a significant difference in my scores compared to yours if you're running 1 card at 512. I was also posting scores in the 15600 range when only benchmarking with one card enabled. It jumped to the mid 18000's once I enabled SLI.

Ahh that would be why. I didn't realize you were running SLI.

 

[tjwo94]

Yeah, I just increased the NB clock from 2600'ish to 2800'ish and saw an improvement of 138 pts. Nothing drastic, but still an improvement. I'm going attempt tweaking the HT Link and I'll post any imporvements. But you should definatley try increasing your NB clock. This should put me just in the top 5.

 

[ShadowFold]

Gonna let it dry for awhile and test it out

 

[erocker]

Shadowfold.. What are you doing?!

 

[ShadowFold]

I froze my 940 in water for a week

 

[tjwo94]

For what purpose?

 

[erocker]

Hmm. What are the benefits of doing that?

 

[ShadowFold]

It's dead, why not lol

 

[tjwo94]

So, your going to try and bring it back to life? lol Frankstein 940!

 

[ShadowFold]

Yea I don't know of any other way to bring these things back to life..

 

[ShadowFold]

Bah still didn't work. Back to the drawing board..

 

[eidairaman1]

i guess later steppings will provide to be reliable.