Hash speed - Small variance after a few days of mining

[Slasklitta]

My hash speed on all three workers is getting a variance on like 10% after a few days of non stop mining. Going between 410 and 440 MHash/s on the 5870. 210 and 230 MHash/s on the 6850

Why is this? Also, sometimes they die for no reason. This is only for my 5870's... Not the 6850.

This is my flags for the 6850

Code:

phoenix.exe -u http://xxxx:xxxx@bitcoins.lc:8080/ DEVICE=0 BFI_INT VECTORS AGGRESSION=10 -k phatk

For the 5870

Code:

phoenix.exe -u http://xxxx:xxxx@bitcoins.lc:8080/ -k phatk DEVICE=1 VECTORS AGGRESSION=12 WORKSIZE=256 BFI_INT FASTLOOP -q 3

They run on separate machines

[grue]

heat?

[Slasklitta]

heat?

Nope.. They run at ~75c during the night and ~82c during the day

The 6850 never goes over 65c... Gigabyte - awesome cooling

[grue]

set aggression higher?

[Slasklitta]

set aggression higher?

It runs fine with AGG=12 at 99% constant if i restart the miner. But its after 1-2 days its getting betwen 90-99% GPU usage.

Shouldnt be this way even if i use lower aggression... Maybe i should try with another miner. But phoenix is the best one out there =/

[FreeJAC]

I have noticed this aw well with phoenix and the forman gui front end. (5830) my two smaller cards running guiminer and poclbm dont have this issue.

[Slasklitta]

I have noticed this aw well with phoenix and the forman gui front end. (5830) my two smaller cards running guiminer and poclbm dont have this issue.

Thanks, ill try the guiminer. How is the performance on poclbm vs phatk? I remember i got a juicy boost when switching to phatk

[FreeJAC]

It's less but not much. For now I just restart foreman once a day and it goes back to normal.