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Shuffling the GPU deck in my F3 rig

post #1 of 9
Thread Starter 
I'm not super sure where to put this, so since I love you all the most (and it's your fault anyway) I thought I'd tell my little story here. (here is my OCN system page with F3)

Current state: (see end of thread for words):








Edited by unexpectedly - 1/24/11 at 4:50pm
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post #2 of 9
Thread Starter 
This was my F3 folding rig. It was kinda happy with life. But then I succumbed to the pressure Fry's put on me with their $89 GTX460 sale. Now that means the GT240 in the bottom slot needs to make way for a GPU with more PPD. So it looked like I could squeeze everything into my big gamer case, the Cooler Master USP100. My CAD build was in it, but when I traveled for xmas, I put the CAD build into the most plainest, ugliest, unwantable case I had.



Out!! Everything out -- now! Everything came out of the old case. And the GTX460 box in the background hungry to churn some PPDs.



This was the first try at the latest configuration of F3 ... GTS250, GTX460, GTS450, and 9800GT hugging up close to the PSU. You'll see that I initially bent the double face plate so the GPU would fit. Then later on, I realized I can make the face plate that came with one of my GT430s work...

When I wrote my review for the USP case, I bagged on it for the long reach from PSU to the power connector for the CPU. Well, that was before I noticed the nifty ports on the motherboard plate to pass wires thru. Duh.




The original PSU that came with the USP100 case is actually supplying my F1 rig. I already killed a 500W PSU with this board, so I got the 750W you see here. It's semi modular. The fixed harness has 8 pin cpu, 24 pin atx, 6+2 pin PCIe, and 6 pin PCIe. Additionally, I added the 2 PCIe cables (red molex at psu) and 1 of the HDD strings. The kind of enlarged mesh curling around is wire protection I stole from the PSU I blew up with the F3 rig last week. I ran all the front panel wires through it. I could have cut it back a little and it wouldn't blow up so much, but who knows where I'm going to be putting this onto next, so I just put it there and left it.

Edited by unexpectedly - 1/24/11 at 4:43pm
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post #3 of 9
Thread Starter 
Hmmm, was going to edit the "part 2" post, but Chrome won't let me.

OK, so here's a shot of the view behind the motherboard plate. I did tie up the sata power cables, but the other ones don't have enough slack to go anywhere. The USP-100 has LOTS of extra room where it really counts. Behind the motherboard is one of those places!





This shows how close the 9800gt is to the PSU. Unexpectedly, both the 9800gt AND the psu are cooler in this setup than before. The 9800GT was in F3 for a while, but I swapped him out for GPUs that had their own power connectors. This 9800 was part of why I blew up that other PSU... The warmth coming out of the psu in the bottom mount is much less than when it lived at the traditional top of the previous F3 case. This pic also shows how I took off the bent double wide face plate from the 9800gt and put on the zotac gt430 "tall" faceplate. The GT430 that came with this plate is in the "office" rig, using low profile brackets.




And a shot of the rear panel. Even though F3 is running Vista Home Basic, I don't need any dummy plugs on the other GPUs. I'm not sure if this is common knowledge now, but in my readings, I saw lots of people using dummy plugs, and one folder blamed it on Vista.




I believe the F3 rig is at a stable point right now. Note that the GTS250 is missing. Well, I was having a heck of a time getting the system to boot up ... no video anywhere. So I took out all the cards and put them back in (with the new GTX460 first!) and found that the GTS250 was acting up. But it worked. Then... it was like 100 deg C at idle. Ugh. I took it out and in went the lower PPD GT430. I need to reapply TIM for the GTS250 and then I'll swap them out...

As if that wasn't fun enough, suddenly, a jet was taking off from the rig. The CPU was cresting 60 deg C and the cpu fan was maxing out at 4000+ rpm. Huh... it worked before, wth? I shut down and took off the cpu cooler on there (was stock one from x6 1055t) and put the H50 on there that I removed from the CAD rig. I wasn't impressed with it on the CAD rig and I'm not on this one either. My Zalman cp9700 (on my F1 rig) works twice as well as this. The big Cooler Master Hyper N520 on my CAD rig is about the same as the H50, but only 2~5 deg C advantage to H50.

The bracket holding the fan above the CPU is a zalman 92 mm fan with mounting bracket. It's pretty slick, bolts up above the expansion cards and floats the fan where you want it. I'm getting more screws tomorrow on my way into work so I can set up push-pull on the h50 radiator and then I'll relocate the bracket so that it's back more over the RAM.




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post #4 of 9
Thats a pretty smexy setup you got there.
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post #5 of 9
Thread Starter 
Quote:
Originally Posted by Finrond View Post
Thats a pretty smexy setup you got there.
Thanks, Finrond!

Update:
OK... I had some pretty big cooling problems. I had personal problems mounting the H50. And this is the 2nd rig I've put it on that it worked much like a stock cooler. (meaning it didn't work) F3 shut down on me a couple times... 1st time, I knocked it down to only 2 cores folding and kept watching. And I added a cooler master 120mm fan to the inside of the radiator, putting it into a push/pull. Then it restarted again, so I turned off CPU folding altogether. The cpu socket temps were still screaming up in the high 60s. When it shut down, I left it off...

I read a few threads of other people hating on the H50 and I took some of the advice of people trying to help in those threads and I reseated the block. Only instead of doing my usual smear thin layer of AS5, I put a pea sized blob of it in the center of the CPU. I was late for dinner or I would have also lapped the H50's block. If it comes out of this rig again, it will be lapped, too.

While reseating the H50 block, I took out the corsair 120mm fan because other ocn'ers were putting it down. So now I have 2 cooler master 120mm fans in push/pull on the radiator and I reseated the block. I also really took my time to evenly tighten up the screws holding the bracket for the H50 block. Started up and idle temp was nicely low (lower 30s).

While turned off, I shuffled GPUs around more ... The Accounts Payable Pentium 4 computer had a Gigabyte GT430 in it that never really worked. It would be ok, but after finishing a WU, it's PPD would drop to 338 or 339. So I took the heatsink off the GTS250 I earlier made angry and sparingly reapplied AS5. Now that GPU is really happy and the PPD are rockin out. Let's hope the GPU2 client stays happy on that rig... It needs to be a hands off project.

So then the Sparkle GT430 that was in F3 is on the bench and the Gigabyte GT430 with dual fans is in F3. I also added a 92mm fan to the upper vents on the USP1. I took a pic, but I have some more plans before I consider this rig "done" enough for me to let it stay alone.

Plans:
  • Install 120mm fan blowing in via the lower vent area on the USP100 side cover
  • Add traditional molex power string to the PSU so that the H50's pump can get max voltage. (no molex's in my case now)

Problem to sort out:
  • When turning on the computer, there is no video out of any cards until Windows Vista is logging on. This is kind of annoying as I was going to mess around in the BIOS, but there's no video. Ever. I'm assuming that I'd need to take some GPUs out to do that. Ugh... Does anyone have experience with this situation?

F3 is pretty happy at the moment, so that's a good thing. I was a bit worried, as the temps seemed out of control for a while. Here's a screenshot showing temps and ppd ... I've got SMP set to fold on 3 cores.

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post #6 of 9
Thread Starter 
Here's the latest state of my F3 folding rig:



Since I stole/retired F1 to become a server at work, I swapped cases around yet again. The cooler master USP100 case is currently unused. The server got the cheap-o case that F3 was in, and F3 got the Monster PC open bench F1 was using. This gives F3 the "coolest" case I own... Its open layout keeps components cooler than any enclosed case I own, no matter how many 120mm fans are running.

I had to get creative with the mount for the H50... I didn't want to re-lap it given all the problems that has been giving me, so here's where it's at. The molex is to run the H50 pump and the extra 120mm fan laying on top of the gpus. It helped my overheating gtx460 (slot closest to cpu) drop a few °C. I'm about to reseat the heatsink on that GPU hoping to get its temps down.
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post #7 of 9
Just give me your GTX 460 and I will give it a cool home. I just like to help my team mates, lol.
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post #8 of 9
Quote:
Originally Posted by unexpectedly View Post
Problem to sort out:
  • When turning on the computer, there is no video out of any cards until Windows Vista is logging on. This is kind of annoying as I was going to mess around in the BIOS, but there's no video. Ever. I'm assuming that I'd need to take some GPUs out to do that. Ugh... Does anyone have experience with this situation?
Sounds to me you like you don't have your monitor plugged into the card it's defaulting to gpu0. Try changing which card, and which port on each card you have it plugged into. You will eventually find which one displays the post information. Viewed from the rear it's usually the top leftmost port, but I have had this happen myself where for whatever reason it decides to use a different one.
post #9 of 9
Thread Starter 
Quote:
Originally Posted by Desert Rat View Post
Just give me your GTX 460 and I will give it a cool home. I just like to help my team mates, lol.
Hhaha... reseating the heat sink worked. Plus 3 more degrees with it lapped.

Quote:
Originally Posted by Digigami View Post
Sounds to me you like you don't have your monitor plugged into the card it's defaulting to gpu0. Try changing which card, and which port on each card you have it plugged into. You will eventually find which one displays the post information. Viewed from the rear it's usually the top leftmost port, but I have had this happen myself where for whatever reason it decides to use a different one.
Crap, that's what I was afraid of. I think it happens to be a mini-hdmi port and I just can't be arsed with those. Heck, there are times when plugging in ANY monitor doesn't work in any port ... that's when remote desktop / vnc viewer save the day. I've got an awesome cheap-o 17" monitor with DVI and VGA inputs and I tried every combination possible.

Thanks!
Chris
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