Hash Rate ALL over the place when mining solo.

[bitjet]

On my current setup my hash rates fluctuate from 800 mhps to 1.3ghps. Only when I mine solo. When I mine in a pool I get 1.1-1.3ghps This fluctuation is much less between these numbers, it does fluctuate, but not nearly as bad.

Here is my current setup;

Win7 64
AMD sempron 2.7ghz single core (could unlock the second if i wanted to)
1g Ram
2 x ATI 5970
wireless pci adapter
poclbm gui miner (flags -f5 -v -w 128) I have experimented with changing these with no real results.
ati stream 2.3 (i cant seam to downgrade it to 2.1)

Overclocked with msi @ 1125v/890mhz/1000ram but system exhibits same behavior at stock clocks.

No monitor, just a dummy plug and i remote into the system.

My temps are not above mid 70's and more like high 60's usually.

I have the port forwarded from my router to the ip of the machine running bitcoin server. Bitcoin server is running on the same machine as the miner.

When I ran this with my cards on my other system my hash rates hardly fluctuated.
my other system had intel i5 quad, 4g ram, ethernet cable connection, and stream 2.3


any ideas?

thanks!

[bitjet]

Bump

[rezin777]

Bump

I wish I could help but I have no idea. I was going to make sure you weren't using crossfire, but since you have no fluctuation in a pool (and use a dummy plug), I'll assume you aren't.

Since you don't have fluctuation in a pool, you should start ruling out the differences between when you mine solo and mine in a pool. It seems like the problem lies there somewhere.

[bitjet]

I do in fact have crossfire enabled. If I dont enable crossfire I can not get win7 to detect the 4 gpu cores simultaneously.

Bump

I wish I could help but I have no idea. I was going to make sure you weren't using crossfire, but since you have no fluctuation in a pool (and use a dummy plug), I'll assume you aren't.

Since you don't have fluctuation in a pool, you should start ruling out the differences between when you mine solo and mine in a pool. It seems like the problem lies there somewhere.

[rezin777]

I do in fact have crossfire enabled. If I dont enable crossfire I can not get win7 to detect the 4 gpu cores simultaneously.

Bump

I wish I could help but I have no idea. I was going to make sure you weren't using crossfire, but since you have no fluctuation in a pool (and use a dummy plug), I'll assume you aren't.

Since you don't have fluctuation in a pool, you should start ruling out the differences between when you mine solo and mine in a pool. It seems like the problem lies there somewhere.

Crossfire might be causing the fluctuation. I don't have any experience with dual-core cards, but crossfire enabled in a multi-card system caused a lot of fluctuation for me. As you've said, I don't think there is a way to disable crossfire on a dual-core card in windows, but IIRC you can do it with linux.

[Garrett Burgwardt]

Crossfire never made that kind of thing happen for me. Try upping your ask rate?