New PC issue

xxtomox · 24 Oct 2015 at 09:17

Hi all,
I have built my new pc and checked all connections again. But everytime I switch it on. PC powers up (All fans spin, lights come up on all hardware) for a few seconds it shuts down and then repeats again a few seconds later.

Any ideas?

RJC · 24 Oct 2015 at 09:22

Try a CMOS reset, sometimes works.

Check the ram is in the correct slots, some boards can be fussy what slots are used.

Have you remembered all power connection including the 8 pin for CPU power as well as the main ATX connector, also the same goes for the Grpahics card if your using one.

xxtomox · 24 Oct 2015 at 09:28

Yeah all connections are in.

Jonny L · 24 Oct 2015 at 09:38

Have you got a system speaker so you can listen for an error code?

xxtomox · 24 Oct 2015 at 09:57

no not got any speakers attached

RJC · 24 Oct 2015 at 10:08

Have you tried the CMOS reset and checked the ram modules are in the correct slots.

Also what cooler are you using as this can sometimes warp the board, usally cracking off the screws a fraction can help.

Quartz · 24 Oct 2015 at 10:13

Are you sure the cooler is making contact with the CPU? This could be a thermal shutdown issue. I made this mistake once when I had the cooler rotated 90 degrees from how I should have installed it and there was a ~3mm gap. I cooked the CPU before I realised.

xxtomox · 24 Oct 2015 at 10:32

Could someone confirm something for me. Installed my 980TI. Not used the cables provided used cables supplied with my power supply. Put a 6 pin and 8 pin PCI express cable from graphics card to my power supply. Is that correct?

RJC · 24 Oct 2015 at 12:14

xxtomox said:
Could someone confirm something for me. Installed my 980TI. Not used the cables provided used cables supplied with my power supply. Put a 6 pin and 8 pin PCI express cable from graphics card to my power supply. Is that correct?

Yes, always use if possible PCI-E power cables from the PSU

Edit: what model graphics did you go with?

xxtomox · 24 Oct 2015 at 12:21

I went with Zotac GeForce GTX 980Ti AMP Edition

Are motherboard suppose to flash red twice before power on machine?

RobRoy · 24 Oct 2015 at 20:52

RJC said:
Have you remembered all power connection including the 8 pin for CPU power as well as the main ATX connector.

Sorry for Hijacking

ive just had the same issue as described above and it was because I forgot to put the cpu power cable in.

thanks!!

Quartz · 24 Oct 2015 at 21:58

xxtomox said:
Yeah all connections are in.

Check both ends of the power cables. And check that you haven't mixed up one of the PCIe 8 pin power cables with the CPU 8 pin power cable.

Bickaxe · 24 Oct 2015 at 23:22

Quartz said:
Check both ends of the power cables. And check that you haven't mixed up one of the PCIe 8 pin power cables with the CPU 8 pin power cable.

I've done this before *sigh*