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View Full Version : Help me overclock my 5870


lewees
18-03-10, 20:50
Having never overclocked a graphics card before I thought I'd have a dabble, sadly I have no idea where to start.

Anyone help a noob out?

Cheers in advance
Andrew Moore
18-03-10, 21:10
Just cran it up in CCC to start off mate then have a read about it. Use furmark to check the memory for artifacts... any game will do for checking the rest of the card for "glitches".. if you see them and see them often, back the overclock off a little.


Andy
lewees
18-03-10, 21:15
Ty buddy!
Its all very new to me but I shall give it a punt later and let you know how it goes!
wuyanxu
18-03-10, 21:25
i used the "Auto-tune" button, left it on while going for lunch. worked quite well, gave me 890Mhz core and 1290Mhz memory.

but Furmark crashed with those clocks after a very, very long time. so backed to 880/1275.

IMHO the card is too bloody fast, there's no need to overclock it, and at best, you'll only get 1 or 2 FPS out of overclocking and risking crashes.
lewees
18-03-10, 21:40
Yeah I'm really just interested in exploring, out benching a few mates for a bit of e-peen really. I wont keep it o-ced it cost far to much money to ruin!
But its just interesting to see how far technology can be pushed etc etc.
Cheers for the advice guys its really helpful.
lewees
19-03-10, 15:36
Card killed itself before I even got the chance to overclock it!

Has green pixels all over my desktop screen and makes the screen flicker black.

Anyone have any ideas? Really disapointed that this card has lasted only 1 day before dieing!
wuyanxu
19-03-10, 15:55
that's a bummer. what is your power supply?
ZodiarK
19-03-10, 17:09
a spot of bad luck
lewees
19-03-10, 17:48
that's a bummer. what is your power supply?

750 watt corsair cant really see that being the issue tbh
considering I managed to benchmark it and play crysis and tf2 without any issues

real bummer all it does is produce green pixels that flash all over my desktop
simon d
24-03-10, 20:45
Did you find out what was causing the problem?
.Alan.
24-03-10, 20:58
Do you get artifacts in 3D or just in 2D?

I'm sure I saw a thread about this on AMD's forums.
wuyanxu
24-03-10, 23:05
head my fan going into full speed just tonight, looked into Everest and MSI afterburner turned out the voltage went to 1.65v for some reason.

searched around, this seems to be the source of green artifacts, a restart should cure it. and to permanently ensure this never happens again, only use 1 voltage monitoring program at a time, eg. not Everest and Afterburner at the same time, as i've done.