Radeon HD 6870 Crashes 5 minutes into games? What could be the cause?

[happyhungarian]

So I recently put my old radeon 6870 in a PC to see if it would work, and it does, as long at you don't game. Which is kinda the reason I put it in the PC in the first place... I've tried it with multiple systems, and it still black screens/artifacts/ crashes about 5 minutes into most games.... I checked the temperature and figured it wasn't that (it stays under 80c, it is mostly at 60-70 on load,  and 40 when idle). I turned the fan speed up to 100 to see if it would help,  and it does as long as it isn't that intensive of a game...

Is the gpu just burned out?  What's wrong? 

My specs (on the machine I'm testing it with-not my main PC)  

cpu-i7 920

mother board- OEM gateway lga 1366

Ram-8gb ddr3 1100mhz

psu- evga 400 watt

gpu- HIS radeon 6870 1.2 GB

 

[tp95112]

Im going to say its just old and giving out. Or drivers

[Dabombinable]

I'd say its the PSU.

[Colin Donoghue]

8 minutes ago, Dabombinable said:

I'd say its the PSU.

Radeon 6870 says it needs a 500 watt power supply so you are probably right.

[Dabombinable]

2 minutes ago, Colin Donoghue said:

Radeon 6870 says it needs a 500 watt power supply so you are probably right.

Suffice to say that I'm no stranger to weak PSU. Every single time I've dealt with one (eg. my GTX 970+i5 4440 on a 400W brand 250W PSU - yes, the brand is actually 400W) its always suddenly shut down

[happyhungarian]

42 minutes ago, Colin Donoghue said:

Radeon 6870 says it needs a 500 watt power supply so you are probably right.

maybe but I've use to use a 450 watt one and it worked fine.... Maybe 50 watts is all the difference??

[happyhungarian]

59 minutes ago, tp95112 said:

Im going to say its just old and giving out. Or drivers

I got the newest drivers (the newest on the amd site at least)  so yeah it might just be old... 

[Dabombinable]

1 hour ago, happyhungarian said:

maybe but I've use to use a 450 watt one and it worked fine.... Maybe 50 watts is all the difference??

50W+age.

[alphaproject]

That thing is a relic... I used to have one.... Maybe you could find a used 7850/70 or something for really cheap.

[gwilkens13]

I think it might be the PSU, but it could be that it is just old.

[happyhungarian]

5 hours ago, Pangea2017 said:

if you have a overclock take it out, i never got anything OC runing on XFX HD 6870

I never overclocked it...

[happyhungarian]

probably a combo of both,  I might try it with a slightly better psu to see if that is the case........