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Topic
Board Beginners & Help
Re: My new mining rig - quad 7970 - Going for 3Gh/s
by
pontiacg5
on 29/05/2013, 18:02:27 UTC
Nice rig dude!

Thanks!

Good work on that case.  Almost makes me want to get back into mining.

Haha, it is fun! I love building computers, not too often I'd have a reason to need this much computer!

jast a thort is that pump good enuf / reliable  i have 2 d5s in seris so if 1 pump fails / more presure that loop is guna have alot of ristriction i would say use 1/2" id 3/4" od pipe

I've calculated pressure drop of my loop and am expecting something like 1.75 PSI of drop across the entire loop. With this pump (4.2M of head) I expect a flow rate of around 1.33 GPM. It also has a tachomoter for the pump, so if it fails I can have the bios shut the computer down.

The plumbing near the pump, res, and radiators is 1/2 OD. The tubing leaving the distribution manifold is 3/8 OD. Since I am running all of this in parallel I don't think restrictions are going to be a problem.


Omg that rig is awsome, but that is a lot of work and seems very expensive...

Haha, thanks! It sure is a lot of work and watercooling bits sure add up quickly!

80c is a good temp for 24h mining, those cards can withstand 88c while hashing at full speed.

if you need to keep them at 70c then you have to look at those delta fans Smiley


http://m.youtube.com/watch?feature=related&v=Apo_tgrSmps


Delta fan: 5000RPM~7000RPM, 256cfm
your fans: 1500rpm. 60 cfm.


I can't hold 80 at full speed, I have to downclock to 900mhz. Full speed jumps to 90-95 rather quick. I'm hoping for 70's while overclocked once watercooled.

The fans I have for my radiators are 1800RPM 103 CFM. Hopefully they will be more than enough without being too loud.



i like your case

Thanks!

Good work on that case.

Thanks!

Hopefully UPS will hurry up and deliver my parts!

Edit: Looks like I found a block on my own last night, wow!