Why does my computer turn on then cut out then boot fine??

pinkpotato

pinkpotato

pinkpotato

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28 Oct 2010
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Well its been doing it ever since i clocked my i7 930 up to 4.2 ghz and never did it @4.00, and it only happens if the computer have been turned off at the wall socket. My oc is stable to 40 runs of linX and 6hours prime. I just wondered what it was, does my mobo and cpu not get enough power straight away or sommething and its cuts out like a safety feature?
 
Model of your Power Supply?
Sounds like since your overclock, your PSU can't handle the extra power needs.

Your PC needs more power to start up than it does once already running (Idle). If turned off at the wall socket, your PSU then needs to recharge it's capacitors etc.

Meaning the sudden surge of needed power causes a power loss, and your system restarts.
 
If that is the case, and it may be, then its going to be sucking a pretty monstrous amount of current, and possibly overloading something inside the PSU. Things turning off then being "fine" is not a good sign, and is an indication that components are being stressed beyond their normal operating point.

I'd probably knock it back to 4.0x and live with it, unless you're made of money!
 
not at all

some boards just do it

its a problem that has existed for ages/

the old 775 nforce boards were notorious for it


just put it back to 4ghz and deal with it.
my 5680 does it at 4.6ghz but not at 4.4ghz

so i run it at 4.4

simple
 
My system does this as well. With or without overclock. I had it down as some kind of diagnostic it was running after being fully powered down, which it doesn't have to do from standby. (Thought I'd fried something the first time it did it though) :)
 
My EX58-UD5 did this at 4Ghz sometimes so I dropped it back to 3.6 and it has never does it again, and it runs much cooler and uses less leccy.
 
Thanks for all the replies, ive got an antec cp850 psu and i have a power meter on it and the highest its recorded is 590w so thats fine. So i guess its either the capacitors charging or the mobo, been running like it for 6 months but never worried much as its always operated fine :)
 
my 775 gigabyte board kinda does this, on power on it will turn on , then dip, then bios boots. has done this since day one and thought it was a safety check with the board etc....nothing to worry about.

oh and i have an 850w silverstone psu so its not power related!
 
Yeah I've got the same problem with my Asus board. Not the biggest problem in the world truth be told as it's fine again a reboot or six. :D
 
@mike gunnz.

There isnt a fix for it, asus design their boards to carry out this function when power has been removed from the system, once turned on again, the system searches for the fsb strap setting, sees that all is ok, then reboots as normal.
 
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