Topic: 5970 mining thread - page 8. (Read 25623 times)

COMPLETELY agree with this...  KISS.

open case, risers, little fan blowing air from the back .clock 820/420 --  1200 watts can get you 2900Mhash at <75C out of the box... 

dont over think this stuff, and dont overclock too much, put the cards on cruise control and go have dinner with your girl!

https://plus.google.com/u/0/photos/112408294399222065988/albums/5658727447810944545

Have you ever used Ceramique?? Its a great heatsink compound,nonmetallic unlike some others.

Just a thought

I see your point, but I want to learn and although my purpose isn't to ruin a graphics card in the process, I'm willing to take that risk.

I've built custom water cooling loops before without issue and have never run into a graphics card which needed different size pads, etc. Of course I have never put a water block on a dual GPU before either.

Also in another thread I meant to say 1mm pads for ram and .5 pads for VRM. I shouldn't have posted the opposite in case someone screws that up.

Nonetheless, I'll refrain from posting any advice about hardware in the future and leave it to others. I'll simply post results like hash rates, software settings, etc.

Thanks for the advice anyway however harsh your delivery may be.

I'll send you a 5970 if I burn one up. Maybe you can fix it and mine some coins for yourself.

My advice: dont tinker with things you dont know or not sure about.

Leave those cards intact, instead focus on custom box to drive cool air to the cards. More efficient that way.

Icy hot burn bro

OK, dual power supply adapter cable.

Ok, so I'm a noob with using multiple PSU's, does that matter? I'm here to learn and improve and possibly help others. The title of my post was not " The definitive guide to using four ati 5970's on one mobo"

Thanks for the constructive advice though.

I didn't get into this to make money, I enjoy hardware as a hobby.

Its not daisychained, noob.... jesus b4 you break your cards, just leave it be and hash without down time.

I thought it might be worthwhile to create an ongoing thread for those of us with 5970's to share info about clocks, voltage, cooling, mining software settings, etc.

Since many people have recently purchased these from newegg, etc. it might help us to optimize these cards to their full potential.

My current set-up is:

2 identical rigs

MSI 890FXA-GD70
AMD sempron 145 sargas 2.8GHz 45 watt
crucial 2x1gb ddr3 1066 ram
seasonic X750 watt gold psu
2 x ati 5970 video cards at 800gpu/300mem
16gb USB flash drive with linuxcoin final

I used 2 old computer cases with all hard drive cages and anything extra removed.
I am using cgminer 2.0.7
My average hash rate is 1.4GH/s on each machine or 700MH/s on each card
average gpu temps are 50-60c depending on card placement, each card is also slightly different.
I have not monitored VRM temps yet.

I plan on adding two more 5970's to each machine with a daisy chained seasonic X750 and a custom rack to hold the GPU's with pci x16 molex powered extenders.

I have also removed the stock cooling on the four cards I am not using and in the process of replacing the thermal paste and thermal pads. I will post when I get the cards working properly again. Any suggestions on replacing the pads and TIM are appreciated.

I plan to use .5mm thermal pads for the ram and other cooling points and 1mm pads for the VRMs. I will use arctic MX3 on the GPU's and plan on experimenting with shin-etsu X23-7783D if I can get it to spread properly!