It Lives, It Lives !!

The Monster's cooling system intrigued me. I have to do something to my P4/gt430 rig. When betreger starting making fun of of it I thought I'd better take a look. From what I've seen it should be capable of 3000-3500 RAC. The first thing GPU-Z showed me was that the GPU wasn't being pushed. I installed Process Lasso and set it to change the cuda apps to high priority. That pushed the GPU usage to 85-90%. Perfect. Then I started overclocking. Didn't take long before my GPU temps were topping 90c, so I backed down to the default again. The temp in my house hit maybe 25c and when I checked on it after work the GPU was running 90-95c. It's not going to last long like that. I've got a CPU fan, the power supply fan and a 80mm case fan in there. The 80mm seems pretty useless, but I guess you get what you pay for. I have space for a couple of good fans and I'm willing to drill. Any suggestions? I'm new to this. The house will never hit higher than 30c.

By the way betreger has a gt430 attached to a dual core and he's getting less RAC than me. Just fess up and ask for help!

Doug

Hi Doug
I'm not familiar with the GT430 but I do know that a P4 can drive any GPU up to a GTX470 at full blat and will run a GTX580 with 5% speed loss.

I'm not familiar with your card, does it have a fan or is it passively cooled?
Are you running the GPU fans (if any) on Auto or manually set to 100% ?
"Side on" or "side off" ? :-)

Can you post the make and model of your card so I can get a look at it ?

Some observations on P4 CUDA crunching.
On my regular and experimental systems, running a single task per GPU gives between 90 and 95% GPU usage. Even running through the PCI bus a GTS250 (470GFlops) ran at "normal" speed (approx 18 minutes for "standard" 0.4AR unit).

The Win7 video system is less efficient at SAH crunching than XP so going back to XP on that rig could get you up to an additional 5% GPU usage.

Memory is KING-- Recommended is a minimum of 750MB of RAM. I found you can get away with 500MB but you have to strip the OS absolutely bare and have SAH as the only running program. On "The Monster" there are only 26 services running with SAH shut down.

Run GPU tasks only. In this type of crunching the CPU is used only to feed the video card. Keeping the GPU fed and watered keeps the CPU quite busy enough, (I found one GPU task required a constant 25% CPU on a 3GHz P4). Trying to run CPU tasks as well just binds the whole thing up.

This could be the reason why yours and betreger's GPU tasks are taking so long. They are the equivalent of times I used to get with an 8600GT, and I presume the 430 should have more grunt than that.

BOINC Manager and explorer.exe (the desktop) can get very memory and processor hungry at times, between them they can use around 150MB of memory and >50% of processor time on a low end system. Shutting them down saves heaps of resources. (You can restart them at any time by using the "File->Run" tab in Task Manager.)

HTH
T.A.

A Question.
What's the expected RAC from a 560Ti ?

Just fantasizing what this beast could do with 7 of them in it....

Bwahahahaha

T.A.

It isn't that nobody wants to answer you. It's just that nobody believes you could get 7 560ti's to run long enough without errors for it to matter. ;-)

Something over 20k and less than 30k each, probably less than 25k each.

"His name is Robert Paulson!"

ROFL!

If you don't name your machine that, I'm going to use that name on a future build. :-)

Hi Doug
I'm not familiar with the GT430 but I do know that a P4 can drive any GPU up to a GTX470 at full blat and will run a GTX580 with 5% speed loss.

I'm not familiar with your card, does it have a fan or is it passively cooled?
Are you running the GPU fans (if any) on Auto or manually set to 100% ?
"Side on" or "side off" ? :-)

Can you post the make and model of your card so I can get a look at it ?

Some observations on P4 CUDA crunching.
On my regular and experimental systems, running a single task per GPU gives between 90 and 95% GPU usage. Even running through the PCI bus a GTS250 (470GFlops) ran at "normal" speed (approx 18 minutes for "standard" 0.4AR unit).

The Win7 video system is less efficient at SAH crunching than XP so going back to XP on that rig could get you up to an additional 5% GPU usage.

Memory is KING-- Recommended is a minimum of 750MB of RAM. I found you can get away with 500MB but you have to strip the OS absolutely bare and have SAH as the only running program. On "The Monster" there are only 26 services running with SAH shut down.

Run GPU tasks only. In this type of crunching the CPU is used only to feed the video card. Keeping the GPU fed and watered keeps the CPU quite busy enough, (I found one GPU task required a constant 25% CPU on a 3GHz P4). Trying to run CPU tasks as well just binds the whole thing up.

This could be the reason why yours and betreger's GPU tasks are taking so long. They are the equivalent of times I used to get with an 8600GT, and I presume the 430 should have more grunt than that.

BOINC Manager and explorer.exe (the desktop) can get very memory and processor hungry at times, between them they can use around 150MB of memory and >50% of processor time on a low end system. Shutting them down saves heaps of resources. (You can restart them at any time by using the "File->Run" tab in Task Manager.)

HTH
T.A.

seing as your able to run 7 ..

assuming you had enough power to run all the cards what is the max amount of gpus the project would support per 1 computer


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seing as your able to run 7 ..

assuming you had enough power to run all the cards what is the max amount of gpus the project would support per 1 computer

Doug I did not intend to make fun of your GT430, I was merely making an observation. FYI I crunch Einstein on the gpu and am getting apx 8000 RAC there, Now I know E@H pays apx 30% more than seti so the expectation was conservative. BTW congrats on getting the card producing more.

well what i was getting at was if you split the pcie lanes and were able to put for example 12 gtx 690's in a custom built enclosure with a few 1200 watt power supplys and a AMD's Magny-cours (12 core) Opteron just to feed the gpus

1. what kind of rac
2. would the project even give you enough work to fill it up
3. what problems does anyone think a system like this would have
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