Computer 'false starting' ???

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When I hit the power button, it starts up (before posting) the fans get going and the LEDs come on for about 2 seconds, then it completely turns off for two seconds then restarts and it sounds like it's taking a few attempts to POST. It hasn't failed to post at all and the computer works fine, it just doesn't sound healthy. :P

It's overclocked with 1.31V VCore and QPI and I'm just wondering if this is normal?
 
Try it with the voltage and clock at stock and see what you get. Try it with hard drives unplugged, stuff like that. Might be the PSU is running out of juice, although it starts up eventually so I'm not sure. GIve that a go and write back.

Chris.
 
Lot of P35 boards do this - I'm assuming that from a cold start some components aren't ready or aren't getting enough power or something along those lines - one of my boards has been doing this for years without any problem at all.
 
Happened to me today, freaked throught I killed the mobo, after few attempts works tho, dropped my oc a little bit and fine now.
 
Asus P35 here too, mine does same thing from a cold boot...always has - its a known thing, think its some kind of glitch but its well documented to be harmless, just a little un nearving i guess if you dont know about it.
 
its a known thing, think its some kind of glitch but its well documented to be harmless
If the system starts and then reboots *once* before loading Windows then everything is fine. If the system starts but reboots *multiple* times youve got a problem! :p

The Single reboot only happens if two conditions are met
  • The system is not running at stock (i.e overclocked or tweaked memory)
  • The system is powered down 100% (switched off from PSU/Wall socket)
It's a safety feature, the same safety feature that allows you to recover from a fUbared overclock. In the old days you had to reset CMOS but this is pretty much old hat now thanks to this C.P.R feature. I nearly use Soft-Off (start > shutdown etc) and rarely unplug my PC from the mains. For those people with an overclocked system that unplug there PC (or toggle the PSU switch to OFF) then they just have to wait the extra 3 seconds! :D

Anyone can test this next time they take off their overclock or do a CMOS reset . . . the PC will boot straight up everytime with no reboot.
 
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My ip35 pro has never done this, even when heavily oced, in fact i think it has been the most stable motherboard of any generation i have owned.
 
My Gigabyte P965-DS3 would do this quite often when overclocked. Generally only once, but sometimes twice in a row. Then it'd boot normally.

My Asus P5Q Pro only does it when the OC isn't stable.
 
My ip35 pro has never done this

Hey jak731, I haven't used an LGA775 ABIT motherboard so can't comment but several ASUS boards I used have always done this.

On your ABIT IP35-Pro what happens when you do some bad settings in the BIOS that results in a no boot situation? i.e gunning for a big overclock and set some over-optimistic parameters! :o

On the ASUS board featuring C.P.R you will most likely *never* have to clear CMOS old-school style unless your name is pastymuncher! :p

anyway going a bit off topic here maybe!

it completely turns off for two seconds then restarts and it sounds like it's taking a few attempts to POST. It hasn't failed to post at all

Hey gksdfjghe98 (heh generic username)

Is it rebooting just once and then booting straight to Windows *or* does it reboot more than once or kinda stall and clunk! :confused:

Also you do realise you have posted for help but not included any relevant hardware info like what Motherboard, CPU, Memory, PSU you are using?

I see you've mentioned QPI so I am guessing it's a Intel® Core™ i7 system but we have no idea which motherboard you have? :cool:
 
Hi Big.Wayne, whenever i have set parameters that are completely unstable it just reboots and loads the previous stable settings. Only reset the cmos once, turned out the video cable had fallen out:o

When i first got the board i thought their was something wrong with it, it always turns off the whole system for 2-3 seconds when voltages are changed, turns out they all do this by design.
 
P35 here, same **** always has done this. Wastes 10 seconds on bootup time, fixing that would make more diff than a SSD ;)

I wonder if its a check or something that some manufacturers do or dont allow and hence why some do this and some dont.


Do more modern boards like say X58 not suffer this now?
 
My Asus P5Q Pro used to do it when at 3.8-4GHz, but since those weren't stable in games I use 3.6GHz now and it stopped doing weird posting.
 
Hey gksdfjghe98 (heh generic username)

Is it rebooting just once and then booting straight to Windows *or* does it reboot more than once or kinda stall and clunk! :confused:

Also you do realise you have posted for help but not included any relevant hardware info like what Motherboard, CPU, Memory, PSU you are using?

I see you've mentioned QPI so I am guessing it's a Intel® Core™ i7 system but we have no idea which motherboard you have? :cool:

Hey bud, my bad, I forgot to mention I have the Gigabyte GA-EX58-UD5.

It reboots once and then the fans whirr maybe 2-3 times like it's psyching its self up to POST :P Then it POSTs and business as usual from there on.

ALTHOUGH, just now it did a double-restart and I was greeted with the "This system has experienced boot failures because of overclocking or changes in voltage" (after bluscreening on a prime95 run). After cleaning out the **** from my pants and OK-ing it, it reset all my crap back to stock and booted fine, then I promptly went back to the BIOS and used my last stable OC settings.

Since this restart thing seems normal I'm not too worried, although I was pretty worried when I saw that "boot failures because of overclocking" screen.. Should I be worried or will I be ok on my last stable overclock settings providing I don't take the **** in future? :)

Cheers
 
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