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Power Problems !!

ryzouk

ryzouk

ryzouk

Associate
Joined
12 Mar 2014
Posts
84
Hello,

I have been having this problem for a few weeks now. If my computer shuts down sometimes it can be a real hassle to get back on. When i press the power button the light flash and fans spin for like a second and it shuts down again. this happens over and over. I tried taking out the ram,fans,hdd....ect Then i got to the gpu and when i unplug my 8pin PCIE connections to the gpu it runs. I take them out a few time and plug them back in and it seems to start working again. I don't want to go out and buy a new gpu to find it the power supply or the other way around. so could you please help me out.

Thanks
 
CEUOTC said:
Full spec of PC will help.

I would for the moment fully remove the GPU (as long as your CPU has a iGPU) so as to narrow down any hardware issues.

Also it is prob not the best idea to remove the PCI-E power connectors then running the PC with the card still fitted.
Click to expand...

I turn the pc off before removing the pcie connectors.
 
traveyb said:
Full spec and the wattage of PSU, that should help :)
Click to expand...

Intel i5 4670k (h100 cooler)

16gb Ram

Sapphire Toxic 280x r9 (box suggests 750w

PSU Antec gaming 620 m

Samsung ssd 250gb

WD Hdd 1tb

6 fans

led stripes + led controller

Was told the antec 620 m gaming would be more than enough and tbh it has been for the last year or so.
 
Yeah I will try taking the gpu out but the problem is that it doesn't happen all the time and this is my gaming pc so without the gpu I wont be able to play any games. Doesn't even happen when I'm at full load only when the pc has been turned off. also I tried taking ram out and leaving one stick in first. nothing worked until I took the gpu connections out.
 
Joe! said:
Tried plugging the card into the second PCI-e slot?

Or maybe different slots on the power supply for the connectors?
Click to expand...

I could try connecting it to the secondary slot. would with work fine or would i loose power ? Also I tried changing connections on the psu never helped only thing that helped this time was to connect one cable to the gpu it powered up then I turned it off the connected the other and it work.

Also I really don't know about the fan PWM never heard of that I will have a look. I'm using the Msi gaming 7 board. The gpu box recommends 750w psu so not sure if my system is struggling with the 620 I have as its also OC to 4.0
 
Ok. I will try it in the lower slot to see if that helps.

Just one of those problems and happens ever now and then so takes time to figure out the cause.

Cheers
 
I does seem quite similar to what's going on with my pc. Push the button and it seems like it going to start for a split second and just powers down. I have not checked the pins will do tomorrow. Was thinking of upgrading my PSU anyway so not show if i should just do that and maybe that will fix it. Was thinking of getting EVGA G2 850w or the B2 850w.
 
humbug said:
Why so much power?

The old PSU was an XFX 750 Watt. (4 years old before misbehaving)

The new one is an EVGA 650 GS, it comfortably runs an FX-9590 and the R9 290, tho now runs a GTX 970.
Click to expand...

I want to get GTX 980ti in the future so thought I would need a more powerful psu. I have disconnected the GPU and after a hour or two i shut the pc down and it had the same problem. :(

any Ideas ?
 
yeah had a look and they seem fine. I also took out a usb led light strip that was connected to the back and it worked. but then happened again when i plugged the gpu back in :(
 
Yeah I was ready for replacing the gpu but then decided to keep it for a while longer. I don't have another board no. The board is only 3 months old. I have the Gpu in the lower slot just now. But the problem still occurred with the gpu completely disconnected.

Could clearing the cmos do any good ?
 
humbug said:
Could try that, but if its that new its probably not the Board.

Wait:

What do you mean by that? please elaborate.
Click to expand...

I completely disconnected the gpu and connect my HDMI to the motherboard and it worked for a short time until the pc was shut down. When i tried to boot up it started from a split second and powered down again. So this rules out the gpu ?
 
With the gpu out and still getting the problem I have disconnected my nzxt sentry mix 2. i have restarted over 10 times and no sign of this problem. Hopefully its solved. Do you guys think this could have been the problem ?
 
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