Problem with installation of new graphic card

Gemmabee

Commendable
Jun 8, 2016
3
0
1,510
Today I replaced my Radeon HD 6770 with a MSI GTX 970 GAMING 4G. With a Intel Core i5-3570K @3.40 Gz and a 520 W power supply, it should've been able to run it.

I plugged it in, everything seemed to fit just fine. I used a 6 pin power connector, as that was what my old GPU used. Boots up my computer, but it says the PCI needs more power, so I add the 8 pin connector as well. Then the computer wont even start. Or rather, it starts for 15 seconds, fans and lights on, but then it shuts down. Then it repeatedly tries to start, but shuts down again almost immediately.

All the cables seemed to be connected and placed where they were supposed to be. Alas I am no techwizard and this is honestly my first time changing my own graphic card. Oh well.

I removed the new GPU and the additional cables I plugged in the machine. Then I reinserted my old GPU. Still the problem persists. My computer wont start for more than a few seconds, before it shuts down, repeatedly.
 
Solution
Sounds like you damaged the MOBO, Those PSU's would have terrible protection if any, overvolting them (which you most certainly did by trying to power a 970) may have caused damage to MOBO and other components, by guessing, 400-450w is the bare minimum for your setup, thats with a nice new well made unit that can handle the wattage + spikes, add the fact that yours has only 70w headroom and is 10+ years old, you definitely pushed some limits

Garilia

Distinguished
Mar 28, 2014
586
0
19,360

bishopi5

Distinguished
Sounds like you damaged the MOBO, Those PSU's would have terrible protection if any, overvolting them (which you most certainly did by trying to power a 970) may have caused damage to MOBO and other components, by guessing, 400-450w is the bare minimum for your setup, thats with a nice new well made unit that can handle the wattage + spikes, add the fact that yours has only 70w headroom and is 10+ years old, you definitely pushed some limits
 
Solution