Mobo, PSU burned out - page 2. | Bitcointalksearch.org

ranlo

legendary

Activity: 1988

Merit: 1007

Quote from: l3jmr on June 12, 2013, 10:01:47 AM

I only used power risers for 2 cards tho, since the board already got 3 slots that will fit the GPU. So can this still be the case ?

How can i make my own powered risers? I saw some on ebay but they cost 5 times as much as the normal ones.

Good question, and not something I know enough about. However...

Your PSU was 1050w. You were pulling nearly 1000w from the wall.

My understanding is that PSU's "deteriorate" over time (based on power calculators), something about capacitor age or something. Someone who knows more may be able to chime in but I think this could be related? Ex. the power being pushed by the PSU decreased over time until it could no longer handle the load and then was overloaded.

sebo

newbie

Activity: 9

Merit: 0

Hi
you have to solder wires from 12v line from PSU to the pins in the normal riser (12v pins)

l3jmr

member

Activity: 99

Merit: 10

I only used power risers for 2 cards tho, since the board already got 3 slots that will fit the GPU. So can this still be the case ?

How can i make my own powered risers? I saw some on ebay but they cost 5 times as much as the normal ones.

ranlo

legendary

Activity: 1988

Merit: 1007

Ouch, this sucks! I ran into a similar issue when I installed a 7950 on my 480w PSU (that said min. 500). Exploded the PSU though, not any mobo/videocard damage.

I think you needed more power.

Buffer Overflow

legendary

Activity: 1652

Merit: 1016

Yes powered rises will stop that. You can make your own.

Devine

newbie

Activity: 16

Merit: 0

Looks like your motherboard was pulling too much juice... People tend to use powered risers to help avoid this. Although you provide power to your cards with the 6/8 pin cables - some of it still is drawn from the motherboard. Powered risers fix this problem. A setup with 5 x 7870's sounds like the right conditions for this.

l3jmr

member

Activity: 99

Merit: 10

Hi,
i've been arount these forums lurking for a while just never registered/posted anything. This is what happened to me and was wondering if anyone had a similar experience or know which would cause this - bad mobo or bad PSU. Motherboard is Asrock 970 Extreme 4 and the psu is Corsair HX 1050W. It was running 5*7870 and power consumption measured at the socket was 960-980W and 4-5A current. It was running fine for about 2 months untill yesterday

I only noticed because my miners went offline, but the fans on GPU's kept running and the PSU still turns on.

Topic: Mobo, PSU burned out - page 2. (Read 1652 times)