Full power off to reboot?

[NoCarsGo]

Hi,

Looking for some help on a new build, my old system died last weekend so I had to rebuild, wasn't really prepared for it so had to do things a bit on the cheap (it's only for basic home use).

The PC boots fine first time, I have run it for almost a whole week but after shut down, I need to turn off the switch on the power supply to get it to fire up again, otherwise it runs for about a second (long enough for the fans to spin up but nothing more), then dies for a few seconds, then tries to start again, and keeps repeating. I tried replacing the PSU as initially I used the old one so I thought that might be the problem (an old basic Thermaltake that came with the case) but it's still doing the same thing.

Specs as follows:
- MOBO: ASRock Z68M-USB3
- CPU: Intel i5 2500 (standard, no OC etc)
- RAM – 2x4GB G.Skill DDR3 1333
- 3 SATA HDD
- PSU: Antec Neo Eco 450C
- Winfast DTV 2000H TV Tuner

Thanks

 

[pro-gamer]

did you applied paste on the processor?

 

[NoCarsGo]

just the standard stuff that was on the heatsink/fan.

 

[pro-gamer]

then remove cpu carefully and put thermal paste on your cpu then try, it will be fine.
this problem caused by the overheating of cpu sometimes i had also this problem last year but when i applied thermal paste it works fine.

 

[NoCarsGo]

Thanks, but heat is almost certainly not the issue, i can run it for hours at a time no problem and it's only reporting around 40C...
This is happening when I shut it down overnight and then come back the next day...

 

[pro-gamer]

ok. which cooler are you using now?

 

[NoCarsGo]

just the standard cooler that came with the CPU.
I think it's more likely a motherboard issue or possibly a switch?

 

[4745454b]

Doesn't sound like a heat issue to me either. I also doubt its a switch issue or else it would happen more often then just shutting down.

Startup and shutdown are controlled by the bios, so perhaps a bad setting there or you need to update the bios.

 

[NoCarsGo]

It seems the problem has resolved itself, I noticed my PCI TV Tuner was a bit loose, so I pushed it all the way in, I don't think i've had the problem since then...