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Topic: Ridiculous power consumption with 2x7950 sapphire vapor-x (Read 2201 times)

hero member
Activity: 588
Merit: 500
legendary
Activity: 2058
Merit: 1452
why would it get contamination from other appliances??? The meter would show exactly what is plugged into it. The appliances on other sockets wouldn't matter.
he forgot to decontaminate the power strip with a class 3 UL certified electromagnetic interference removal solution.
full member
Activity: 120
Merit: 100
You are doing better than my Shappire 7970 Vapor-X (540 Kh/s)...
hero member
Activity: 574
Merit: 500
hah, never mind, turns out i had the kill a watt power meter plugged into a power board and apparently you get contamination from other appliances

down to a more reasonable 450w

...lol good one jr
sr. member
Activity: 266
Merit: 251
why would it get contamination from other appliances??? The meter would show exactly what is plugged into it. The appliances on other sockets wouldn't matter.

I don't know, but it did originally. Now it appears to have levelled out.
legendary
Activity: 1134
Merit: 1005
why would it get contamination from other appliances??? The meter would show exactly what is plugged into it. The appliances on other sockets wouldn't matter.
full member
Activity: 154
Merit: 100
hah, never mind, turns out i had the kill a watt power meter plugged into a power board and apparently you get contamination from other appliances

down to a more reasonable 450w

Was just going to say, it's not possible. Smiley
sr. member
Activity: 266
Merit: 251
hah, never mind, turns out i had the kill a watt power meter plugged into a power board and apparently you get contamination from other appliances

down to a more reasonable 450w
sr. member
Activity: 266
Merit: 251
Just tried some new settings

cgminer --device 0 --device 1 --remove-disabled --scrypt -I 19 --worksize 256 --gpu-engine 1010 --gpu-memclock 1250 --thread-concurrency 16384 --vectors 1

no real reduction
sr. member
Activity: 266
Merit: 251
Does anyone else have these cards?
They're eating 400W per card under load!

Here are my settings:

cgminer --device 0 --device 1 --remove-disabled --scrypt -I 20 --gpu-engine 1100 --gpu-memclock 1400 --thread-concurrency 21712

Getting about 610kh/s each, screenshot:



cgminer reports VDDC as 1.125V, gpu-z confirms this

Anyone know what could be going on?
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