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The Socket 939 Appreciation Club and Knowledgebase [Official] - Page 919

post #9181 of 28697
Quote:
Originally Posted by JEmmaB View Post
Thanks, I plan to.

Slightly higher OC.
post #9182 of 28697
Thread Starter 
Quote:
Originally Posted by MikeV_E36 View Post
Yes and at 1680x1050 at full quality had a major drop in fps, couldn't play normally. After this I didn't get to try at lower settings cause I had to format my pc and didn't install it again. I'm waiting to give it a try again with the new gpu. The sure is that 8800gts 512 won't go farcry2 @1680x1050 high quality..

Just read that by enabling the "CPU overvoltage" in bios you enable the 8-phase power system which gives more stability to the system. Is that true?? pio or txtmstrjoe maybe you know cause you have the same mobo with me?? CPU overvoltage gave 0.2v more so I enabled it and drop the CPU voltage down by 0.2v.
MikeV, I have a strong dislike for enabling the CPU Overvolt option. Despite the claims that enabling this option enables the much-ballyhooed "8-phase Power System," therefore endowing the system with more stability, on the A8N32-SLI Deluxes that I've played with (two), they made the system more unstable. Voltage regulation becomes quite inconsistent with this setting enabled, especially during load. This is obviously undesirable for overclocking.

I'm not sure what pio's experiences with this setting are, so I hope he weighs in as well.

I'd test and experiment, if I were you. It's possible that I had the incredible luck of having two boards where this feature was somehow faulty in implementation. During testing, there's no harm done in finding out what your equipment can do.

Good luck! And hope this helps.
    
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post #9183 of 28697
Quote:
Originally Posted by txtmstrjoe View Post
MikeV, I have a strong dislike for enabling the CPU Overvolt option. Despite the claims that enabling this option enables the much-ballyhooed "8-phase Power System," therefore endowing the system with more stability, on the A8N32-SLI Deluxes that I've played with (two), they made the system more unstable. Voltage regulation becomes quite inconsistent with this setting enabled, especially during load. ...
Seems to me if this is the case then a Cap replacement is in order and will achieve stable OC's.
post #9184 of 28697
Quote:
Originally Posted by MikeV_E36 View Post
Just read that by enabling the "CPU overvoltage" in bios you enable the 8-phase power system which gives more stability to the system. Is that true?? pio or txtmstrjoe maybe you know cause you have the same mobo with me?? CPU overvoltage gave 0.2v more so I enabled it and drop the CPU voltage down by 0.2v.
Great Question. That got me thinking that option has to be the same on am2 boards as well. Like to see every one's results or at least theory on this one. Joe if your experience play's true then maybe it's just for stock spd's with cpu intensive games and such.
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post #9185 of 28697
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Quote:
Originally Posted by Hueristic View Post
Seems to me if this is the case then a Cap replacement is in order and will achieve stable OC's.
Possible, but doubtful, for three reasons:

A visual inspection of all capacitors didn't indicate any were bad. Of course, I'm no expert in capacitors, so my eyes may not be well-trained enough to know the difference except in the most extreme and obvious circumstances.

One of the two boards exhibited this behavior ever since it was brand new. This is the primary factor which makes me believe this is a congenital design defect rather than a bad batch of components like capacitors, for example.

If the voltage regulators were affected by bad hardware, shouldn't the inconsistent voltage regulation also be present when the setting is not enabled? I get much better voltage regulation when CPU Overvolt is set to "Disabled" (which is the default setting).

If I had enough skills, of course, I'd consider upgrading sundry components such as capacitors so that they'd be as good as they apparently are on a DFI LANParty-series board. Talk about great voltage regulation... these things are in another league compared to the A8N32-SLI...
    
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post #9186 of 28697
Quote:
Originally Posted by txtmstrjoe View Post
Possible, but doubtful, for three reasons:

A visual inspection of all capacitors didn't indicate any were bad. Of course, I'm no expert in capacitors, so my eyes may not be well-trained enough to know the difference except in the most extreme and obvious circumstances.

One of the two boards exhibited this behavior ever since it was brand new. This is the primary factor which makes me believe this is a congenital design defect rather than a bad batch of components like capacitors, for example.

If the voltage regulators were affected by bad hardware, shouldn't the inconsistent voltage regulation also be present when the setting is not enabled? I get much better voltage regulation when CPU Overvolt is set to "Disabled" (which is the default setting).

If I had enough skills, of course, I'd consider upgrading sundry components such as capacitors so that they'd be as good as they apparently are on a DFI LANParty-series board. Talk about great voltage regulation... these things are in another league compared to the A8N32-SLI...
The caps may be fine, But they may just meet minimum specs. A Caps job is to smooth out your Voltage so replaceing them with higher grade larger caps should achieve this.
post #9187 of 28697
Quote:
Originally Posted by blitz6804 View Post
Oustanding JEmmaB; just outstanding. Your 939 K8 is now faster than my AM2 K8. Who said 939 is obsolete? I think this proves it is not!

(I hope you do not mind, but I have changed the roster but will not upload until we get another member since you already have the "Oh WOW!" designation and improved your score by 12 MHz. I would not be surprised if it goes up again anyway.)
Thanks. Still hoping to get it higher, at least to 3.3GHz.

With regards to the roster; I don't mind.
Edited by JEmmaB - 11/25/08 at 9:43am
    
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post #9188 of 28697
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Quote:
Originally Posted by Hueristic View Post
The caps may be fine, But they may just meet minimum specs. A Caps job is to smooth out your Voltage so replaceing them with higher grade larger caps should achieve this.
Oh, I don't doubt you're right about this, actually.

But with everything as it is, only one setting change causes the behavior I'm seeing, which suggests that it's either a BIOS issue (not likely, since the behavior persists over at least four BIOS versions that I've tried), or a problem with the board's VRMs/MOSFETs. Since the voltage regulation is much more consistent with CPU Overvolt disabled, I'm inclined to think it's that particular BIOS setting.
    
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post #9189 of 28697
Quote:
Originally Posted by MikeV_E36 View Post
Jemma great job! Bravo! Push that beast to the limits!

pez great choice for monitor man, you gonna love playing games on such big screen and I'm pretty sure your gt can handle the 1680x1050! Maybe you'll need a 2nd one for newer games like farcry2.
Yeah, I'm going to eventually get a second, but I've been bugging my mom about getting a widescreen monitor since last X-Mas, so it's my main priority.

CPU cooler says out for delivery. Can't wait.
 
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post #9190 of 28697
Quote:
Originally Posted by txtmstrjoe View Post
Oh, I don't doubt you're right about this, actually.

But with everything as it is, only one setting change causes the behavior I'm seeing, which suggests that it's either a BIOS issue (not likely, since the behavior persists over at least four BIOS versions that I've tried), or a problem with the board's VRMs/MOSFETs. Since the voltage regulation is much more consistent with CPU Overvolt disabled, I'm inclined to think it's that particular BIOS setting.
Hmm, Are your Fets Being cooled? do you have a way of measuring their temp? If they are mounted on board (I.E. back is soldered on mainboard) you can stand them up and place a sink on their back (Just make sure the sink is making a connection to the board as well) and this will lower temps drastically. HS on top of Fets don't work well.

But I would still go after the caps first. It's not hard and will help overall stability. It will not hurt. Unless of course you destroy the board while doing it.
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