Sorry about posting this here, not sure that any other area would be a better fit.

Managed to kill my main crunching machine this morning, looking to see if anyone has any thoughts on this.

Home built system, i7 920, 6GB RAM, 2 250 video cards, Win 7 64-bit, ASUS P6T system board. Everything was running perfect for the past 4 months, then I get the brilliant idea to overclock it some this morning. Used the ASUS TURBO V utility to slightly (I thought) speed things up. Sorry, don't have the changes available. System froze up. No problem I think. Power down, go reset BIOS to default, try again. Power down went fine. But the system will not power up. No fans, no POST, no nothing.

I have disconnected peripherals from the power supply (it's a modular 1000 Watt PS, so in theory I have plenty of 'juice'), removed the video cards, etc. Nothing still. There are jumpers on the system board for allowing changing component voltages. Set those. No luck. I appear to be getting voltage to the system board, as the internal Reset and Power buttons are lit. Will try some of the ASUS discussion boards, but thought I would try here too.

Any help would be appreciated.

Thanks again.

Scott

Sorry about posting this here, not sure that any other area would be a better fit.

Managed to kill my main crunching machine this morning, looking to see if anyone has any thoughts on this.

Home built system, i7 920, 6GB RAM, 2 250 video cards, Win 7 64-bit, ASUS P6T system board. Everything was running perfect for the past 4 months, then I get the brilliant idea to overclock it some this morning. Used the ASUS TURBO V utility to slightly (I thought) speed things up. Sorry, don't have the changes available. System froze up. No problem I think. Power down, go reset BIOS to default, try again. Power down went fine. But the system will not power up. No fans, no POST, no nothing.

I have disconnected peripherals from the power supply (it's a modular 1000 Watt PS, so in theory I have plenty of 'juice'), removed the video cards, etc. Nothing still. There are jumpers on the system board for allowing changing component voltages. Set those. No luck. I appear to be getting voltage to the system board, as the internal Reset and Power buttons are lit. Will try some of the ASUS discussion boards, but thought I would try here too.

Any help would be appreciated.

Thanks again.

Scott

Reset your board bios by clearing your CMOS, do your overclocking in the bios.

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Official Abuser of Boinc Buttons...
And no good credit hound!

Check your power strip and make sure it didn't trip.

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Official Abuser of Boinc Buttons...
And no good credit hound!

I had similar problem after mains failure, I removed battery on my ASUS motherboard and then put it back and all was then OK
PS I do my overclocking in the BIOS

Geoff

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Thanks everyone, removing the RTC battery reset BIOS also. Should have known that. I am surprised that the system was completely dead though. Oh well.

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Thanks everyone, removing the RTC battery reset BIOS also. Should have known that. I am surprised that the system was completely dead though. Oh well.

Did you fry your whole system? Check the motherboard. I'd be suprised if you fried the CPU.

Do your overclocking in the BIOS - don't trust these overclocking utilities.
When you raise the mult., try setting the vcore at a reasonable level as well (1.00V to 1.300V) - DON'T LEAVE IT ON AUTO WHATEVER YOU DO!.

I got a stable clock of 3.78GHz (mult. 21x, bus 180MHz, vcore 1.232V) and I didn't even fiddle with the RAM timings or clocks.

Let us know if you have another go at it.

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- Luke.

Sometimes when electricity stops for a very short time (0.5-1 seconds) my computer go off but "thinks" that it is on.

I press the (soft)Power button but computer do not start.

So I press the (soft)Power button for 10 seconds (to "pretend" that I switch the computer off).

Then press the (soft)Power button shortly as usual and the computer starts.

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- ALF - "Find out what you don't do well ..... then don't do it!" :)
 

Sometimes when electricity stops for a very short time (0.5-1 seconds) my computer go off but "thinks" that it is on.

A small, inexpensive UPS in this case is your best friend, from a system longevity standpoint. You might want to check into one, to help you ride out these minor power issues, if they happen with any frequency.

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