Stuck in an endless loop after rebuilding.

CraigRobbo · 7 Jul 2013 at 13:55

Hey guys.

So i have rebuilt my system into a new case, added watercooling.

I spent all last night bleeding the system and gave it a try this morning and its stuck in an endless loop.

The system turns on, The lights on the mobo flash but nothing on the monitor after about 5 seconds it turns itself off for a moment and turns itself back on and continues doing this.

I have tried clearing the bios and that didnt do anything, I also tried a single stick of ram in (4 separate pieces of ram)

The parts are only around 3 month old.

I'v been my own PC's for the last 10 years and never encountered this problem before.

All help would be GREATLY appreciated.

Krisali · 7 Jul 2013 at 14:04

I know this is probably a dumb question but did you hook up the power cables to the graphics card?

CraigRobbo · 7 Jul 2013 at 14:05

Krisali said:
I know this is probably a dumb question but did you hook up the power cables to the graphics card?

Yeah, I did - and the CPU suplamentary power too

Doco · 7 Jul 2013 at 14:21

What board do you use (and other system specs) - any chance your mobo has a debug code than can say where its getting suck on?

biuro74 · 7 Jul 2013 at 14:27

With no detailed spec, I can't say more than some obvious & general rules: check spacers in case/motherboard, PSU type and re-socket CPU, checking socket pins for bent/broken ones.

CraigRobbo · 7 Jul 2013 at 14:29

Sorry Spec would have helped.

i7 3770K (delidded)
32GB ram (currently 16GB installed for testing)
MSI Z77-G45A gaming Mobo
HX620W Corsair PSU

I have nothing else connected at the moment for testing.

Unfortunatley no debug codes on this mobo, I have taken out my graphics card and using on-board for testing to take graphics out of the equasion, I will try and reseat CPU

oldestgregg · 7 Jul 2013 at 14:32

I reckon bent pins. I would also try just one stick of ram for testing purposes.

CraigRobbo · 7 Jul 2013 at 14:35

oldestgregg said:
I reckon bent pins. I would also try just one stick of ram for testing purposes.

I'll check this, I would be suprised if it is as I always take EXTRA EXTRA care when installing CPU but non the less its worth ruling it out.

Doco · 7 Jul 2013 at 14:36

I was half hoping for debug codes lol sorry stumped here, nothing really jumping out at me -that I dont think youve already tried (ie youve already tried ram and now gpu sorry :-/)

CraigRobbo · 7 Jul 2013 at 14:52

A bit old skool but I tried connecting a speaker buzzer, No sounds from the mobo at all...

CraigRobbo · 7 Jul 2013 at 17:22

Is there a common denominator when a PC stays stuck in a boot loop(without booting or getting to Bios)
No graphics external peripherals connected just the BASIC system.

batchie · 7 Jul 2013 at 22:09

had this happen twice in the last 6 months with friends computers and both times it was related to the CPU, heat-sink on one not seating right and a grease mark on another.

CraigRobbo · 7 Jul 2013 at 22:19

I have stripped the system, Reseated the CPU, However one pin was SLIGHTLY bent, I used a magnifying glass and a pin to resettle it - Although it now looks right again, it still is rebooting over and over.
i am wondering if I damaged the CPU when i delidded it.

Jony27 · 7 Jul 2013 at 22:46

try this as I always have this trouble when my overclocks fail

turn it off the main switch, unplug the cable from the psu, hold down the power button for a few seconds, wait a minute or 2, then plug everything back in.
see if that works

CraigRobbo · 7 Jul 2013 at 23:00

Tried that, rebuilt the entire system from scratch outside of the case, still dead

Skynet5 · 8 Jul 2013 at 00:19

Has it worked since you delidded it?

Clear CMOS? Replace battery? If still nothing can u borrow another CPU to see if that works?

CraigRobbo · 8 Jul 2013 at 00:50

Its my first try since Delidding. Although I was super super careful, I didn't catch the Die, I didnt scrape the PCB and when I removed the IHS it came off nice and easy (no tugging) Although it could well be dead.