Is overclocking causing this?

[Frost]

I don't understand. My pc will run sisoft sandras burn in for hours, play games for hours, do anything I throw at it, completly stable no problems... But when I go to shut down and select "restart" It shuts down fine, goes to restart, then, the screen just goes black, and my monitor goes into suspend mode. Its been happening at every voltage when running at 13x180... Yet every thing is COMPLETLY stable... Also all I have to do is turn the pc off with the psu switch, and turn it back on and it'll run for as long as I please, untill I go to restart again I don't understand it. So I dropped it down to 166x13... Same thing happens. I haven't checked to see if this happens at default setting yet, but I just don't see how it could run for hours and hours under load, I go to restart and it just like suspends itself. I don't even have to wait 3 seconds before turning it back on and it runs just fine... Weird.

I'm thinking it might have something to do with the semi cheap-o psu I'm running. I'll try the 300watt antec I have, but do you think the psu has anything to do with this or not? Temps seem fine to me. Under full load they're at 53-54c, and idle around 40-46c.

What do you think could cause this? I would just don't know. System specs:

**Have tested at almost default (12x166) and the restart problems have seemed to go away, as well as at 12.5x166.** How can restarting be the only place where my system chokes??

A7V8x
xp2400
ti4400
SB Live!
80gig WD
48x16x48 cendyne burner (only cdrom hooked up for now)

Thats about all I have hooked up at the moment.

Thanks for your replys

Frost.

 

[The Sauce]

Yes that is very likely because of overclocking. Lots of boards will boot at the CPU's default voltage which, if you have your chip clocked too high, would cause the boot failure. After POSTing, then the voltage you set in the BIOS goes into effect, allowing you to run at the overclocked speed indefinitely. Check the overclockers.com forums for a thread on modding your cpu default voltage (make it higher) and that should solve the problem.

 

[Frost]

Thank you very much for that helpful response alot of people would have simply said "yup overclocking is causing the trouble" with no explanation or thought on how to fix it. I hope that works... I'll check into it later today, is it like unlocking the multiplier at all? (That was easy)

Frost

 

[chizow]

Its also a symptom of an underpowered PSU...what are you using? Softboot, reboot, suspend issues were a common problem when the more power hungry Athlon systems came around (T-bird), and are still to a less degree.

Chiz

 

[Frost]

Well its not the power supply... Unless this Antec isn't enough either?

Heres another question. So when restarting does the cpu stay at the same speed (whatever its set at) not going back to default, but the voltage does go back to default untill post?? Also because when I edit options in the bios now, it usually doesn't boot. It'll save, go like its gonna post, then just a black screen... Then when I hold the power button for 4 seconds to turn it off, or flip the switch on the back, I can power up like 3 seconds later and it'll post, get into windows and run everythin perfectly.

 

[chizow]

Its very possible; I was having softboot/coldboot issues at high FSB speeds and high OC until I swapped out my 400W Antec PP403 for a 480W Antec TrueBlue.

Chiz

 

[NesuD]

My MSI K7N2-L board does the same thing. Not everytime but about every 4th or 5th restart. MSI tech support responded with this "It seems like there might be something wrong with the power distribution. It could be the board, and of course it could be the power supply, too. Please first check with a different power supply (different brand will be great) and see if that's the issue.

If not, then please test the board outside of the case to verify for one last time to see if it's grounding with the case."

I am using an Antec 412px 400 watt supply which has been working perfectly with all my other boards. This weekend i am going to pull the board and see if there are any solter points on the back side that possibly look like they could be grounding. I really do not want to rma the board since other than that problem this is the overclockinest board i have ever used. Runs 200mhz/400ddr system bus like it was born to do it. By the way the problem aoocurs at all settings overclocked or not.

 

[Viper GTS]

My box does that when it's pushed too far.

Dropped it down ~75 MHz and all is well.

Viper GTS

 

[The Sauce]

Well, the PS is another issue. THe CPU runs off the 3.3V rail (I think?) and it consumes more power on start up than it does thereafter. That being said, I have never seen this problem fixed by replacing the power supply. The ASUS boards (A7V8X and A7N8X) are known to have this cold boot problem though - and I stand by my statement that the problem is most likely the VCore at startup being too low. The mod is very simple. Either connect bridges or do a wire loop short on the socket. I can't tell you exactly what to do because I am not familiar with your chip and what the default voltage is, etc. Post this up on the overclockers.com forums and you'll likely get more help.

What usually happens is that when you hard reboot, after the first boot failure the mobo resets the FSB speed to 100 MHz to ensure a boot-up. As for the BIOS saving problem, there is also a well known problem with some of the batteries on the ASUS motherboards being bad. People who were having the BIOS save problems were able to fix it by buying a new button-battery for the mobo at Radio Shack and replacing it.

Hope this stuff helps. Cheers.