• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

Power Problems !!

Associate
OP
Joined
12 Mar 2014
Posts
84
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.

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 ?
 
Associate
OP
Joined
12 Mar 2014
Posts
84
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 :(
 
Caporegime
Joined
17 Mar 2012
Posts
47,384
Location
ARC-L1, Stanton System
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 :(

Diagnosing problems like this is a pain without specialist equipment, it could be the PSU, GPU or Motherboard thats the problem here.

I know how you feel as i spent £260 on a replacement GPU thinking it was the problem which turned out to be the PSU, so another £70...... :o

Use different PSU PCIe cables, try the GPU in a different PCIe slot,
Do you not have a spare motherboard you could try it out in?
 
Associate
OP
Joined
12 Mar 2014
Posts
84
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 ?
 
Caporegime
Joined
17 Mar 2012
Posts
47,384
Location
ARC-L1, Stanton System
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 ?

Could try that, but if its that new its probably not the Board.

Wait:

problem still occurred with the gpu completely disconnected.
What do you mean by that? please elaborate.
 
Associate
OP
Joined
12 Mar 2014
Posts
84
Could try that, but if its that new its probably not the Board.

Wait:

What do you mean by that? please elaborate.

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 ?
 
Caporegime
Joined
17 Mar 2012
Posts
47,384
Location
ARC-L1, Stanton System
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 ?

Remove the GPU completely, take it out of the case and run the computer from your iGPU for a while, or is this what you did and the PC still shut down?
 
Caporegime
Joined
17 Mar 2012
Posts
47,384
Location
ARC-L1, Stanton System
Over Current Protection ^^^ usually happens when the PSU is on its last legs, the voltage rail ripple and drop too much and it compensates by adding more AMPs, too much of that it trips.

Ok thats good. Only thing is it happened once maybe twice with the gpu out. With it connected it happens 8/10 times I shut down and try to restart. So with the Gpu definitely happens more often.

PSU tripping out, happens more often with the GPU as it requires more power.

What you think CEUOTC?
 
Last edited:
Associate
Joined
25 Jul 2012
Posts
1,272
Over Current Protection ^^^ usually happens when the PSU is on its last legs, the voltage rail ripple and drop too much and it compensates by adding more AMPs, too much of that it trips.



PSU tripping out, happens more often with the GPU as it requires more power.

What you think CEUOTC?

Good shout. Can you borrow a PSU from someone to test? PSU problems are usually a problem to diagnose as they create such random issues:D
 
Caporegime
Joined
17 Mar 2012
Posts
47,384
Location
ARC-L1, Stanton System
I have to go into town, my thinking here is you need to replace the PSU, tho i am not completely sure, i'm not an expert here.

But i will also say: you don't need an 850 Watt PSU, not even with a 980TI, thats a 250 Watt GPU together with a 100 Watt CPU, you have tones of room with a 750 Watt or even a 650 Watt (as long as its a good brand like an EVGA Suppernova or Supperflower Leadex)

The reason they put ridiculous power requirements on GPU's is because cheap PSU's do not give you the wattage they state on the box, they usually include the 3v and 5v rails in the power they cite when what you need is the 12v.
so a cheap PSU may say 750 Watts but only have 30 AMPs on the 12v rails, so the power you get for the CPU and GPU is actually 360 Watts.

Look at the 12v AMPs, multiply them by 12, so 54 AMPs will give you 648 Watts and thats plenty.
 
Back
Top Bottom