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9850 BE Overclocking Issues on ASUS M2N-SLI Deluxe

post #1 of 7
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I recently purchased a 9850 for an AMD machine I plan on using to run Server 2008 and was happy to see that I could easily get it up to 2.8GHz on air cooling just by increasing the multiplier and leaving all the other settings at Auto. The problem I encountered, however, was that when performing a cold boot, or even just coming out of standby, the machine would not actually start to power on until after the fan on my 7900GTX slowed down after the card initialized. I thought it might have been a problem with my power supply, so I put the card on the other 6-pin, but that had no effect. When I returned the CPU to stock settings, however, it would boot just fine. I also tried manually setting the core voltage, in case for some reason the Auto setting was just a tad too low, but that produced the same results as the Auto settings. I wanted to be able to bump up the FSB to take advantage of the new support for 1066MHz modules, which are now just running at 800MHz, but if it means waiting five minutes every time I return from standby, I don't see that happening.

Any thoughts/suggestions would be greatly appreciated.

9850 BE Revision DR-B3
ASUS M2N-SLI Deluxe BIOS 1502
Mushkin 2x2GB 1066 5-5-5-15 (currently running @ 800)
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Old Behemoth
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post #2 of 7
Quote:
Originally Posted by devster View Post
I recently purchased a 9850 for an AMD machine I plan on using to run Server 2008 and was happy to see that I could easily get it up to 2.8GHz on air cooling just by increasing the multiplier and leaving all the other settings at Auto. The problem I encountered, however, was that when performing a cold boot, or even just coming out of standby, the machine would not actually start to power on until after the fan on my 7900GTX slowed down after the card initialized. I thought it might have been a problem with my power supply, so I put the card on the other 6-pin, but that had no effect. When I returned the CPU to stock settings, however, it would boot just fine. I also tried manually setting the core voltage, in case for some reason the Auto setting was just a tad too low, but that produced the same results as the Auto settings. I wanted to be able to bump up the FSB to take advantage of the new support for 1066MHz modules, which are now just running at 800MHz, but if it means waiting five minutes every time I return from standby, I don't see that happening.
Devster, have you tested your machine for stability with the 2.8Ghz OC? I typically like to use Orthos for stability tests. Make sure to run the blend test at priority 9 for at least 8-9hours. I run my tests over night.
Do you have a PCI card to test with to see if the problem reproduces itself?

If you can please add your system specifications to your signature. You can do that by going here: http://www.overclock.net/specs.php?do=addsystem

Good luck
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post #3 of 7
I would defiantly run bios 1801. That is the bios I use and it works great. I have the same board as you.
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post #4 of 7
I accidentally trashed my M2N-SLI deluxe by flashing the bios with the .bin for a M2N-SLI32... I got the BIOS to reflash with the crash free option and the original CD. Then nothing... Black screen HD light stays lit... CD spins and shows activity for about 3 seconds then nothing... Any ideas? If the BIOS was socketed I'd change it... I can desolder and replace as a last resort but would love to avoid that... Thanks in advance...
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post #5 of 7
Quote:
Originally Posted by Showtime219 View Post
I accidentally trashed my M2N-SLI deluxe by flashing the bios with the .bin for a M2N-SLI32... I got the BIOS to reflash with the crash free option and the original CD. Then nothing... Black screen HD light stays lit... CD spins and shows activity for about 3 seconds then nothing... Any ideas? If the BIOS was socketed I'd change it... I can desolder and replace as a last resort but would love to avoid that... Thanks in advance...
Showtime, if I'm not mistaken doesn't the Asus manual explain how to recover a bad BIOS? If not you could try a couple of things. You could see if BIOSMAN offers a replacement BIOS chip. You could also try hotflashing the BIOS but that can be dangerous. Lastly give Asus a call and perhaps maybe they can either send you a new BIOS chip or provide some type of support on recovery the BIOS.

Good luck
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post #6 of 7
Quote:
Originally Posted by thlnk3r View Post
Showtime, if I'm not mistaken doesn't the Asus manual explain how to recover a bad BIOS? If not you could try a couple of things. You could see if BIOSMAN offers a replacement BIOS chip. You could also try hotflashing the BIOS but that can be dangerous. Lastly give Asus a call and perhaps maybe they can either send you a new BIOS chip or provide some type of support on recovery the BIOS.

Good luck
Yeah I used the ReFlash utility then I cleared the CMOS and it will not boot at all... I do not even get the Bad Bios Checksum error I was getting... I have a feeling I'lll need to send it in... Thanks for the help though. I have heard pretty decent reviews on ASUS customer service. I just don't want to trash a MOBO thats only been ran for 1 week before I destroyed it.
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post #7 of 7
Quote:
Originally Posted by Showtime219 View Post
I just don't want to trash a MOBO thats only been ran for 1 week before I destroyed it.
Showtime, well said. If you just purchased the board a week ago I'm sure the warranty is still covered.

Good luck
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