4870 crashing

[40sTheme]

Well I was overclocking my 4870 and took the core up to 830 and the mem up to 1000. It crashed so I just said meh I'll put it back to stock settings of 800/925. Now it doesn't run stable at those settings? Did I royally eff my card up? It runs at 750 core 925 mem.

 

[SunnyD]

You may have. Is it the powercolor card in your sig? What exact model is it? (One of the ones on Newegg has only a couple of reviews saying it was horrible as far as cooling went).

What are your GPU, memory and most importantly VRM (listed as VDDC in GPU-Z) temps?

 

[OCGuy]

Stock was 800? Was it some already highly factory overclocked card? Dont the 800mhz factory-oc'd 4870s come with a water block?

Link to card?

 

[thilanliyan]

Originally posted by: Ocguy31
Stock was 800? Was it some already highly factory overclocked card? Dont the 800mhz factory-oc'd 4870s come with a water block?

Link to card?

I think one of the Powercolor versions was stock 800/925 but lots of people were saying it wasn't stable at those speeds.

 

[40sTheme]

card
Wasn't Open Box when I bought it; only link I could find.
GPU temp at idle (can't do load, obviously, since 3d crashes) is 42.
VRM temps (4 listed) are 51 51 57 57.
GPU MEMIO is 51.
EDIT: BTW, it used to be stable.

 

[OCGuy]

I stand corrected!

Hmm...you may have hit the limit without upping volts. That doesnt explain why it wouldnt work at "stock" settings now though, unless it got borked thermally.


The RAM running at stock means you probably didnt damage it. Does it work with 800 core but lower memory?

 

[SunnyD]

Originally posted by: 40sTheme
card
Wasn't Open Box when I bought it; only link I could find.
GPU temp at idle (can't do load, obviously, since 3d crashes) is 42.
VRM temps (4 listed) are 51 51 57 57.
GPU MEMIO is 51.
EDIT: BTW, it used to be stable.

Temps look okay. If it's running at idle, that means it should be working. I think Ocguy is right... leave it at "stock" 750/900 and then stress test it. If it still fails at what would be normal 4870 stock settings, time to RMA it. 800MHz for a lot of people is pushing the envelope on 4870's with 3rd party cooling.

 

[kmmatney]

Overclocking the card a little shouldn't screw it up. It was probably a bad card that would have gone bad in a few months, but you accelerated the issue. Sounds like this wasn't a great card design, sicne they no longer sell it (except as open box).

 

[dguy6789]

Powercolor is one of the worst brands quality wise. I'd just run it at the real stock speed of 750/900. You'll be lucky if the card has a normal life span at those settings.

 

[40sTheme]

I'll try a stress test at stock; COD5 ran fine for 30 minutes at that, but I'll try Furmark or something. Thanks for the replies.

 

[40sTheme]

Well Company of Heroes ran for an hour in an intense 2v2 game at stock 4870 clocks, so I'm going to suppose it's nice and stable there. I may run an actual stability test but as far as real world results goes, that's about the best test right there.