Bitcoin Forum

Bitcoin => Mining => Topic started by: melter on May 20, 2011, 01:44:11 AM



Title: 5850 overclock
Post by: melter on May 20, 2011, 01:44:11 AM
Is it normal for a 5850 to run at 900 mhz core stable at stock voltage?

...cause that's what mine is running at right now (doing ~340 mhash/s)


Title: Re: 5850 overclock
Post by: exahash on May 20, 2011, 01:53:32 AM
Is it normal for a 5850 to run at 900 mhz core stable at stock voltage?

...cause that's what mine is running at right now (doing ~340 mhash/s)

Depends on what model it is, but yes, many around here have achieved that and more.  Search is your friend.  Or did you just want to brag?


Title: Re: 5850 overclock
Post by: melter on May 20, 2011, 02:23:59 AM
i pretty much just wanted to brag.


Title: Re: 5850 overclock
Post by: melter on May 20, 2011, 04:09:12 AM
if an overclock is unstable enough to artifact while playing games but not unstable enough to crash, how would that translate to bitcoin mining?

(im not saying im getting artifacts or anything like that, just curious)


Title: Re: 5850 overclock
Post by: Saruto on May 20, 2011, 04:39:55 AM
if an overclock is unstable enough to artifact while playing games but not unstable enough to crash, how would that translate to bitcoin mining?

(im not saying im getting artifacts or anything like that, just curious)

My 5850 is semi-stable at 860/1190 but I can't run games for more than an hour without the clocks resetting. I can mine fine, but I'm likely killing my card faster. I wish I bought an Asus reference card so I could up the voltage and get a nice 1000/1300 overclock going, the model I bought is voltage-locked at 1.15v. Weirdly though, when I installed the Trixx overclocking utility I was able to change the voltage and it reflected properly in GPU-Z. I OC'd until my system became unstable but upon restart I lost all software voltage control. Bloody strange.


Title: Re: 5850 overclock
Post by: Basiley on May 20, 2011, 04:40:22 AM
lucky exemplar can do that, but majority need slight voltage tweak [about 0.05V] to reach suck clocks.


Title: Re: 5850 overclock
Post by: russelljohnson on May 20, 2011, 07:02:45 AM
i'm currently running 2 5850s in xfire @ 950/300 1.15V.

get about 359MH/s


Title: Re: 5850 overclock
Post by: Basiley on May 20, 2011, 07:07:23 AM
i'm currently running 2 5850s in xfire @ 950/300 1.15V.

get about 359MH/s
1.15V is golden middle voltage.
but clocks higher than 950 is dangerous, cuz usually guys not care about VRM/power system circuitry cooling improvements :/



Title: Re: 5850 overclock
Post by: DiabloD3 on May 20, 2011, 07:12:00 AM
Is it normal for a 5850 to run at 900 mhz core stable at stock voltage?

...cause that's what mine is running at right now (doing ~340 mhash/s)

I have mine stable at 918 (as far as the slider goes) on stock voltage, but I also have it under 75c, so ymmv.