Theres a moose loose aboot this hoose! Weebeastie!

[Biffa]

IT LIVES!!! MUHAHAHAH!

Preliminary rebuild complete, letting it do a little bit of Folding at the moment

Having "fun" trying to optimise the layout of the loops for optimal cooling, think I've been through two iterations of layout, 3 sets of fans and I'm still not happy

Still at least it gets to stretch its legs a bit before we start again

And for those with a voyeuristic tendency.. : http://www.3dgfx.net/weebeastie/summary.html

 

[Biffa]

Aye still work in progress, but ambients are very warm 30+

 

[Biffa]

OK
1 Dual pump XSPC bayres with two DDC pumps
1 x PA120.3 in the roof (incoming)
1 x XSPC RX240 in the front (exhaust)
1 x TFC 120 in the back (exhaust)
11/16mm tubing
Distilled water (not deionised) with silver coil and ptnuke

The flow to the graphics cards is a parallel water flow which is less restrictive than serial apparently. I originally had it in serial (one pipe between each card) but am trying parallel at the suggestion of some of the guys at Xtremsystems.org

The picture above is v1, v2 is a bit different:

As you can see I added a lian li side fan thingie, which is not much chop but adds some airflow into the case, because I noticed the temps dropped if I ran it with the side off.

Current water flow is as follows but if you look at the pic above its red for the vrm/nb flow, then blue for the CPU part, then green for the gpu flow section:

Basically like this:

Its a bit tricky but in order to try and "inline" the two pumps, you can see one side of the flow goes to the second pump and vice versa, that also gives me some redundancy if one pump fails.

But am thinking of changing it a bit as the CPU is still getting hot, oh that and getting 1850 Scythes rather than the 1450's I've got now.

So basically the main change would be swapping the 240 and the 360 around and putting the VRM/NB blocks on the GPU side of the loop. Although with water equalising temps over time in a loop may not make that much difference. Think the fans will help more

 

[Biffa]

The way I understood it is the ins and outs being at opposite ends is irrelevant to the principle of parallelism, its more how the water flows across the blocks in multi gpu setups.

Its parallel because the water moves parallel through the blocks from left to right concurrently, whether the water exits from the top or bottom.

As you said its working, and I had serial in he past, the temps are around he same, but its not the gfx I'm concerned about anyway its the CPU

 

[Biffa]

No need to apologise this is a conversation/discussion amongst friends All input is helpful, I want to optimise. Have a proper AquaGrafx multi sli connector coming when they finish making it So will see if that helps.

 

[Biffa]

i always use the latest

 

[Biffa]

Have to show my ignorance here and ask is an AquaGrafx multi sli connector a piece for connecting between cards as opposed to tubing Well if you dont know you have to ask

 

[Biffa]

I think I could hold him off for a little while if the urge moved me, maybe if there was some reciprocation from the Seti ranks once in a while......

 

[Biffa]

It'll work ok if its only two cards running (in any configuration) bit as soon as i try a 3 cards the last 2 instances started error out. How did you get yours running if you don't mind me asking?

The only thing I can say is there are good 295's and bad ones.

What OS are you using, the only way I could get 295's stable was on XP (32 or 64)

 

[Biffa]

You don't need Pcie 2.0 x16 really, x8 won't cause much of a problem.

I think there is an old thread somewhere of my 775 multi gpu rigs.. let me have a dig

 

[Biffa]

No client shouldn't use 100% of a CPU core. But you are talking BOINC, although I did do some boinc testing I didn't spend a lot of time on it but it did work. Not much help I know.

What happens if you remove all the cards bar the one giving problems and just use it on its own? Is it more stable?

 

[Biffa]

6.31 console
You can't do bigadv on gpu's you can put the switches in but they won't work, its not a supported switch.
You can put advmethods tho not that it makes a difference that I can tell.

 

[Biffa]

Hmm.. I may have to update this thread soon.

 

[Biffa]

This is what it looked like more recently:

And heres how much power it pulled:

It was a handsome beastie though.

Its empty of gpu's now... in preparation.. preparation H you could call it...

The bad news is, I just found out that with the dual DVI ports on the Titans set one on top of each other I can't actually get the card to fit in the bottom PCI slot in this case.

Which means as I have gone for EK blocks this time round I won't be able to move the bottom card up a slot because the EK blocks are to phat.
The good news is I have another case that is waiting in the wings.

The bad news is I have to completely transfer the guts to the new rig and thats going to take some time.

 

[Biffa]

Did you not run into the same problem of clearance on the original build , how did you solve it?
Are you transferring to "Mega-Beastie Case"?

Its the only case that I've got that will fit without having to buy a new one.

So with the original build the 470's don't have the double stacked DVI ports, so I could and did originally have them spaced every two slots because I used a 1 slot backplate on the bottom card.

470:

Titan:

However during optimisation of the rig (and I did a LOT of tweaking initially) I found that with the Aquacomputer Twinconnect bridge allowed you to do one slot spacing, plus the Aquacomputer blocks are so bloomin thin that you could fit 7 of them in there if the OS supported it.

Look at the difference in slot spacing on the bottom card before I used the TwinConnect bridge and after.

 

[Biffa]

Some updates sorry about some of the out of focus pics, my hand was shaking

Nekkid Titan.. check out those amphoras... phoar!

The money shot!

Full frontal:

From behind!

Semi dressed:

Bondage outfit complete!

 

[Biffa]

Transferred everything into my seekrit weapon (well big frickin case actually)

Case is a monster! Dwarfs everything else I have, but I reckon you would never get a quad G34 mobo in there.

 

[Biffa]

This is how she ended up:

3930K
Quad Titan

All dressed up with nowhere to go