Seems not good. Two Nathans have failed with the ACMD message on the screen.

Although I do not know what ACMD means, but two Nathans failed in a row as well, the last with a bluescreen. Both on my GTX570, which normaly does not have mayor problems. So you are not alone and it might not be your system.

Seems not good. Two Nathans have failed with the ACMD message on the screen.

Although I do not know what ACMD means, but two Nathans failed in a row as well, the last with a bluescreen. Both on my GTX570, which normaly does not have mayor problems. So you are not alone and it might not be your system.

Thanks for your info, that is a relief (for my system).
I must have said ACEMD.286, its the program that runs in the task manager, its to feed the GPU I guess, that pops up as an error message.

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Greetings from TJ

When you get a failure, restart the system. Then give it a few days before you go mad installing and reinstalling drivers.

I ran 10WU's without a problem on a W7 system and then had 3 failures yesterday. I restarted, and no problems so far...

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I don't go mad, I am always calm and patient when I make things (I don't break them) ;-)
I have also ran for weeks without error, but now I am swapping cards from system to system, it give to think when an error occurred.

But the GTX660 is way to warm in the quad case, so I will swap it once more with the 550Ti again.

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This morning I replace the GTX660 for the GTX550Ti, as the 660 went the warm in the case and it will go back in the Alienware as soon the CPU cooler arrives.

However, now the 550Ti is running in its previous system where it ran for more than a year, the Core clock is at 405MHz, according to EVGA and GPU-Z software.
I have taken out Afterburner to see if I can get it higher, but no.
How can I do this?

It is running now Nathan (after two errors) at 97% GPU load at only 50°C. That is nice but only 0.528% complete in 26 minutes, that can't be good.

Thanks as always for the input.

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It's downclocking.
Right click on your desktop, click NVidia control panel and set the GPU to Prefer maximum performance.

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It's downclocking.
Right click on your desktop, click NVidia control panel and set the GPU to Prefer maximum performance.

That was the first thing that I did when the card was in the system and it booted after the second time. You told me that earlier and I am a good learner.
So that doesn't help, more idea's.

I dragged the GPU clock slider into the 1500's hit apply and the system booted with an error of the GPUGRID WU off course my fault.

After I installed the card I did an drive update from 314 to 320.18, could that be the cause?

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Greetings from TJ

It's better to do a clean install (advanced), rather than an upgrade, especially when changing cards.
I would uninstall, then install 314. I would also reinstall GPUZ and EVGA Precision afterwards.

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It's better to do a clean install (advanced), rather than an upgrade, especially when changing cards.
I would uninstall, then install 314. I would also reinstall GPUZ and EVGA Precision afterwards.

I did the clean install, and did indeed reinstall precision X as well after deinstalling it first. Not GPU-Z though (but use that almost not).

If it still runs without error I let it go, and then downgrade to 314.
If an error appears than I downgrade immediately.

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Are you running 4 CPU work units on that system? If so, reduce it to 3. Presumably you tried restarting?

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Are you running 4 CPU work units on that system? If so, reduce it to 3. Presumably you tried restarting?

No maximum 2 CPU, but currently zero, to see if that did anything, but no.
Yes restarting a few times after the ACEM program crach

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The GTX550Ti GPU should be ~900MHz when crunching. 400MHz means it's definitely downclocked, but what's causing it is the question?
I suggest you recheck the NVidia control panel settings and make sure Prefer Maximum Performance is still selected. If it is, then all I can suggest is that you do a full uninstall, restart and install a previous driver (304 up to 314). I've seen and read about a lot of issues with the 320.x drivers.

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The GTX550Ti GPU should be ~900MHz when crunching. 400MHz means it's definitely downclocked, but what's causing it is the question?
I suggest you recheck the NVidia control panel settings and make sure Prefer Maximum Performance is still selected. If it is, then all I can suggest is that you do a full uninstall, restart and install a previous driver (304 up to 314). I've seen and read about a lot of issues with the 320.x drivers.

Yes thanks I will do that skgiven. It is still maximum performance.
It has now done 2.358% in 02:03:04 hours so it will take 100 hours to complete.
I will update soon, one more loss of a WU can't hurt.
But the coolers arrived, so I first get the Alienware crunching again.

One is an Intel original, feels heavy, they smeared 3 stripes of paste on it with the idea that is flows evenly when running hot....????
But it will fit in the case. The one I try first is a Shuriken B 64mm in height 100mm fan.

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I have installed driver 314.22, is set to maximum performance. It has booted 3 times after and one time even powered down completely.
The GPU clock went to 974MHz, but all GPUGRID WU's have failed within a few seconds afterwards. Four errors in a row. I slowly become mad....

But to check things I set GPUGRId (GG) at no new work and went to Milkyway. These tasks are running now at 98% GPU load and 65°C.

So is the drive wrong for GG or are the WU at the moment distributed (Nathan's) failing?
I have never had such many errors even not with the Noelia's where so many people did complain about.

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What about temperatures? You said 65C when running MilkyWay, what about when running GPUGRID?

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What about temperatures? You said 65C when running MilkyWay, what about when running GPUGRID?

I don´t know as the card will not crunch GG yet.

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When siting in the sun, I thought about GPU´s.

Suppose I build a system with one simple GPU, a GTS or so that drives to monitors for watching BOINC and stuff.
The I place a GTX690, which has 2 processors, so does to GG WU at the same time and fast (for this project), but I do not connect any monitor to this GPU so it has nothing to do with graphics. Would this rig be more stable?

Secondly the special cards, the Fermi Cxxx that where designed for GPU crunching with no monitor connector at all, would be great then, but expensive.
However for some time I hear and read less of them, are they gone?

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Forget about Fermi now, they're just wasteful compared to Keplers. They're not as bad as to retire them immediately, but don't anyone buy another one of them for crunching. And especially don't anyone buy a Tesla for crunching! They're only worth their price if you make a living from crunching on them.

And I don't think decoupling the display from crunching would really help (been crunching on my single GPU for years). But if you want to do so nevertheless I'd suggest getting a CPU with integrated GPU, as these are basically free and the most power efficient ones available.

Is that 550Ti still downclocking? I know I answered something today in some other thread..

MrS

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Okay thanks I won't.
I thought so that a screen or no screen would hinder. I experienced it when watching streamed internet TV, GG keeps going.

Yes the 550Ti did Einstein at 974MHz for about 1.5 hours then went on 405 again on the same WU. I have removed all EVGA software and reboot. Ran at 974 but eventually 405 again. Afterburner shows clock of 951, GPU-Z of 405???

Idea was to let it finish one Einstein. Then remove driver. Boot. Install latest driver, boot, install EVGA software, boot and then GG SR.

My final rig is a quad Kentsfield, I use it mainly for working from home as it has two 8600GTS and a monitor shared with a pc next, I can use 3 screens with is handy for my job. Big screens then 2 would be okay but I have only 19 ones.
Now I have removed one card and place the GTX660 which sat in the Alienware in the second slot (it says so secondary), one 8600GTS is in the primary with two monitors.
It is now doing a SR. CPU is 34-45°C according to Core Temp, no CPU WU's running (yet). The GTX660 does 86% load at 73°C but I guess room temp of 31.7 has to do with that. This rig is called EARTH.

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I have my i7-3770K's integrated GPU driving the monitor. Alas, it's not very good and I didn't notice any significant benefit WRT using the two (and previously three) NVidia GPUs for crunching, which was at least in part the purpose of getting that CPU and that motherboard. It's really not worth it, unless you are going to utilize the iGPU on a project in which case its REALLY not worth it, as in you have wasted your money on a CPU instead of a real GPU.

31.7°C is not friendly.

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