I wish I could use more than cuda32 on My fermi based cards under Windows7 x64, I found that using drivers newer than 266.58 WHQL produces downclocks of the gpus from 732MHz or 772MHz or 815MHz to 405MHz, under 266.58 which only allows cuda22 and cuda32 I've had no downclocks at all with My GTX580(a Zotac Infinity Edition) and My GTX570(an EVGA GTX570 model 1570), so the best I can do is cuda32, the newer drivers from 301.24 to 326.19 only make the gpu clock down to 405MHz and this has happened at low temps, but then I tested them all, to Me I'd think this is a driver problem, since 266.58 does not support downclocking of gpus at all, nor gpus newer than the 580 or the 570, though I can modify the inf file to allow the use of the GTX590 since its just a pair of fermi gpus and an Nvidia NF200 chip, the NF200 isn't visible to the OS I'm told, if I'm wrong on being visible, I'm ok with that too. I'm currently using 266.58 under Win7 Pro x64 and the lunatics cuda32 app under Boinc 7.0.64 x64 and Boinctasks 1.46.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

I use 320.49 with the 580 & the 590 without any problem on Win7/64 and runs cuda42 on them.

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I use 320.49 with the 580 & the 590 without any problem on Win7/64 and runs cuda42 on them.

I tried that one, downclocked after a few hours, oh and that's Win7 Pro x64 sp1, it would result in wu's that took hours to complete instead of 15-30 minutes...

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

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Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

Been there done that, PC was always set to maximum performance on the Nvidia panel and to not go to sleep in the power part of the control panel under any circumstances, no difference seen no matter what I did, downclocks still happened, I even tried 275.33 and cuda32, I got downclocks there too, only 266.58 works, but 266.58 doesn't support cuda42 at all.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

Been there done that, PC was always set to maximum performance on the Nvidia panel and to not go to sleep in the power part of the control panel under any circumstances, no difference seen no matter what I did, downclocks still happened, I even tried 275.33 and cuda32, I got downclocks there too, only 266.58 works, but 266.58 doesn't support cuda42 at all.

That´s above my knowledge maybe if you ask Jason he could give another clue, i could only say i have a similar host and works without problems.

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Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

Been there done that, PC was always set to maximum performance on the Nvidia panel and to not go to sleep in the power part of the control panel under any circumstances, no difference seen no matter what I did, downclocks still happened, I even tried 275.33 and cuda32, I got downclocks there too, only 266.58 works, but 266.58 doesn't support cuda42 at all.

That´s above my knowledge maybe if you ask Jason he could give another clue, i could only say i have a similar host and works without problems.

Jason doesn't talk to Me, don't ask.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

Been there done that, PC was always set to maximum performance on the Nvidia panel and to not go to sleep in the power part of the control panel under any circumstances, no difference seen no matter what I did, downclocks still happened, I even tried 275.33 and cuda32, I got downclocks there too, only 266.58 works, but 266.58 doesn't support cuda42 at all.

That´s above my knowledge maybe if you ask Jason he could give another clue, i could only say i have a similar host and works without problems.

Jason doesn't talk to Me, don't ask.

Then maybe steve, mark, williams or anyone else with more knowledge?

Just curiosity what is the clock on your 580? Did you try to run it with stock sppeds? Maybe that´s the clue, try to run a little slower and look what happeing. Myne runs at 772 and memory 2004 and 1.013V

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Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

Been there done that, PC was always set to maximum performance on the Nvidia panel and to not go to sleep in the power part of the control panel under any circumstances, no difference seen no matter what I did, downclocks still happened, I even tried 275.33 and cuda32, I got downclocks there too, only 266.58 works, but 266.58 doesn't support cuda42 at all.

That´s above my knowledge maybe if you ask Jason he could give another clue, i could only say i have a similar host and works without problems.

Jason doesn't talk to Me, don't ask.

Then maybe steve, mark, williams or anyone else with more knowledge?

Just curiosity what is the clock on your 580? Did you try to run it with stock sppeds? Maybe that´s the clue, try to run a little slower and look what happeing. Myne runs at 772 and memory 2004 and 1.013V

Currently at 732MHz, stock is 815MHz and I've run the card at 732MHz like the 570 runs at, which is stock for this 570 card, downclocks just happened, MY PC mostly up to date, the cpu is an i5 750 running on an Asus P7P55D Pro motherboard. I've tried 0.988v or so to 1.063v, the 580 is a Zotac card and the temps stay at or around 63C since it is water cooled, I just set the card down to 1.025v, as I doubt the card needs that much, I use MSI Afterburner and the fans are set to maximum, Afterburner keeps the fans running at maximum speed.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

Yes you need a help from one of our hardware gurus...

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Yes you need a help from one of our hardware gurus...

So far I've changed out almost everything here, psus, video cards, drivers, etc. About the only thing I haven't changed out is the motherboard, I'm working on that now, but that means a newer motherboard since socket 1156 motherboards are hard to find today, so I'm working on getting an X58 motherboard now since it is a needed upgrade, soon enough a cpu for it too, My other motherboard is already converted to water partly, there I lack the right case, 3/4"OD 1/2"ID black tubing, clamps or compression fittings for said tubing, water wetter and distilled water, plus a water filter to filter out junk and debris from the blocks and radiator to avoid pump failure, since the parts are either new or used.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

Yes you need a help from one of our hardware gurus...

So far I've changed out almost everything here, psus, video cards, drivers, etc. About the only thing I haven't changed out is the motherboard, I'm working on that now, but that means a newer motherboard since socket 1156 motherboards are hard to find today, so I'm working on getting an X58 motherboard now since it is a needed upgrade, soon enough a cpu for it too, My other motherboard is already converted to water partly, there I lack the right case, 3/4"OD 1/2"ID black tubing, clamps or compression fittings for said tubing, water wetter and distilled water, plus a water filter to filter out junk and debris from the blocks and radiator to avoid pump failure, since the parts are either new or used.

That´s realy interesting, i not even use a new MB, the MB on this host, who have a 580 and works perfect with not a single downclock, is and old very cheap ASUS P8B75-M LE powered by a very limited 1155 I5-2310 CPU, so it´s hard to belive the source of your GPU downclock problems is the MB itself. As we allways say, debug a computer problems is not a exact science...

I´m sorry i realy have no knowledgue to try to help you anymore. Hope someone with more expertices could give you a hand.

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Yes you need a help from one of our hardware gurus...

So far I've changed out almost everything here, psus, video cards, drivers, etc. About the only thing I haven't changed out is the motherboard, I'm working on that now, but that means a newer motherboard since socket 1156 motherboards are hard to find today, so I'm working on getting an X58 motherboard now since it is a needed upgrade, soon enough a cpu for it too, My other motherboard is already converted to water partly, there I lack the right case, 3/4"OD 1/2"ID black tubing, clamps or compression fittings for said tubing, water wetter and distilled water, plus a water filter to filter out junk and debris from the blocks and radiator to avoid pump failure, since the parts are either new or used.

That´s realy interesting, i not even use a new MB, the MB on this host, who have a 580 and works perfect with not a single downclock, is and old very cheap ASUS P8B75-M LE powered by a very limited 1155 I5-2310 CPU, so it´s hard to belive the source of your GPU downclock problems is the MB itself. As we allways say, debug a computer problems is not a exact science...

I´m sorry i realy have no knowledgue to try to help you anymore. Hope someone with more expertices could give you a hand.

Well the motherboard I'm using now was an open box sale, a returned motherboard, also the bios hasn't been updated in 3 or 4 years, but what can I say, I think the cpu is innocent, but I need more bandwidth, so it's time.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

Been there done that, PC was always set to maximum performance on the Nvidia panel and to not go to sleep in the power part of the control panel under any circumstances, no difference seen no matter what I did, downclocks still happened, I even tried 275.33 and cuda32, I got downclocks there too, only 266.58 works, but 266.58 doesn't support cuda42 at all.

That´s above my knowledge maybe if you ask Jason he could give another clue, i could only say i have a similar host and works without problems.

Jason doesn't talk to Me, don't ask.

Then maybe steve, mark, williams or anyone else with more knowledge?

Just curiosity what is the clock on your 580? Did you try to run it with stock sppeds? Maybe that´s the clue, try to run a little slower and look what happeing. Myne runs at 772 and memory 2004 and 1.013V

Currently at 732MHz, stock is 815MHz and I've run the card at 732MHz like the 570 runs at, which is stock for this 570 card, downclocks just happened, MY PC mostly up to date, the cpu is an i5 750 running on an Asus P7P55D Pro motherboard. I've tried 0.988v or so to 1.063v, the 580 is a Zotac card and the temps stay at or around 63C since it is water cooled, I just set the card down to 1.025v, as I doubt the card needs that much, I use MSI Afterburner and the fans are set to maximum, Afterburner keeps the fans running at maximum speed.

I think your problem is from the additional software that nVidia installer installs when you install the driver. I found that I really do not like the Performance package that comes with nVidia installer.

Now when I install a new driver, I go to advanced installation options and out of 5-6 items in the list select only 2: display driver (it is selected automatically) and Physics X.

If I want to overclock or underclock, I use nvidiaInspector. I tried Afterburner and did not like it.

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Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

Been there done that, PC was always set to maximum performance on the Nvidia panel and to not go to sleep in the power part of the control panel under any circumstances, no difference seen no matter what I did, downclocks still happened, I even tried 275.33 and cuda32, I got downclocks there too, only 266.58 works, but 266.58 doesn't support cuda42 at all.

That´s above my knowledge maybe if you ask Jason he could give another clue, i could only say i have a similar host and works without problems.

Jason doesn't talk to Me, don't ask.

Then maybe steve, mark, williams or anyone else with more knowledge?

Just curiosity what is the clock on your 580? Did you try to run it with stock sppeds? Maybe that´s the clue, try to run a little slower and look what happeing. Myne runs at 772 and memory 2004 and 1.013V

Currently at 732MHz, stock is 815MHz and I've run the card at 732MHz like the 570 runs at, which is stock for this 570 card, downclocks just happened, MY PC mostly up to date, the cpu is an i5 750 running on an Asus P7P55D Pro motherboard. I've tried 0.988v or so to 1.063v, the 580 is a Zotac card and the temps stay at or around 63C since it is water cooled, I just set the card down to 1.025v, as I doubt the card needs that much, I use MSI Afterburner and the fans are set to maximum, Afterburner keeps the fans running at maximum speed.

I think your problem is from the additional software that nVidia installer installs when you install the driver. I found that I really do not like the Performance package that comes with nVidia installer.

Now when I install a new driver, I go to advanced installation options and out of 5-6 items in the list select only 2: display driver (it is selected automatically) and Physics X.

If I want to overclock or underclock, I use nvidiaInspector. I tried Afterburner and did not like it.

I get rid of the update/experience and 3D stuff, since I have no use for either and I do a clean install.

---

The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

Been there done that, PC was always set to maximum performance on the Nvidia panel and to not go to sleep in the power part of the control panel under any circumstances, no difference seen no matter what I did, downclocks still happened, I even tried 275.33 and cuda32, I got downclocks there too, only 266.58 works, but 266.58 doesn't support cuda42 at all.

That´s above my knowledge maybe if you ask Jason he could give another clue, i could only say i have a similar host and works without problems.

Jason doesn't talk to Me, don't ask.

Then maybe steve, mark, williams or anyone else with more knowledge?

Just curiosity what is the clock on your 580? Did you try to run it with stock sppeds? Maybe that´s the clue, try to run a little slower and look what happeing. Myne runs at 772 and memory 2004 and 1.013V

Currently at 732MHz, stock is 815MHz and I've run the card at 732MHz like the 570 runs at, which is stock for this 570 card, downclocks just happened, MY PC mostly up to date, the cpu is an i5 750 running on an Asus P7P55D Pro motherboard. I've tried 0.988v or so to 1.063v, the 580 is a Zotac card and the temps stay at or around 63C since it is water cooled, I just set the card down to 1.025v, as I doubt the card needs that much, I use MSI Afterburner and the fans are set to maximum, Afterburner keeps the fans running at maximum speed.

I think your problem is from the additional software that nVidia installer installs when you install the driver. I found that I really do not like the Performance package that comes with nVidia installer.

Now when I install a new driver, I go to advanced installation options and out of 5-6 items in the list select only 2: display driver (it is selected automatically) and Physics X.

If I want to overclock or underclock, I use nvidiaInspector. I tried Afterburner and did not like it.

I get rid of the update/experience and 3D stuff, since I have no use for either and I do a clean install.

Ok, I do the same.

When I open NVIDIA Control Panel, I have only three sections: 3D Settings, Display, Video. I used to have another section, called Performance, I think it came from NVIDIA System Tools package, it is not part of the driver installer, you download and install it separately. Do you have it installed?

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May I ask why you reopen a two month old thread to go totally off topic?! Do open your own (and ask a mod to move the posts)!

Personally I think there's a reason people put stuff up for sale at Ebay in the first place, especially if they offer it cheap.

Hardware and (over)clocking. Definitely not my area of expertise, sorry.

Running 3 wus at a time sounds like overdoing it though and maybe backing a bit off with the clock would help. But I ain't the expert.

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A person who won't read has no advantage over one who can't read. (Mark Twain)

Check your control panel, energy option, use high performance, choose never suspend the computer and do not use screen saver.

I use Win 7/64 Pro SP1 too in several hosts with no problems, the downclock must be a configurarion problem.

Inclusive this host have a 580 and runs 3 WU at a time.

Been there done that, PC was always set to maximum performance on the Nvidia panel and to not go to sleep in the power part of the control panel under any circumstances, no difference seen no matter what I did, downclocks still happened, I even tried 275.33 and cuda32, I got downclocks there too, only 266.58 works, but 266.58 doesn't support cuda42 at all.

That´s above my knowledge maybe if you ask Jason he could give another clue, i could only say i have a similar host and works without problems.

Jason doesn't talk to Me, don't ask.

Then maybe steve, mark, williams or anyone else with more knowledge?

Just curiosity what is the clock on your 580? Did you try to run it with stock sppeds? Maybe that´s the clue, try to run a little slower and look what happeing. Myne runs at 772 and memory 2004 and 1.013V

Currently at 732MHz, stock is 815MHz and I've run the card at 732MHz like the 570 runs at, which is stock for this 570 card, downclocks just happened, MY PC mostly up to date, the cpu is an i5 750 running on an Asus P7P55D Pro motherboard. I've tried 0.988v or so to 1.063v, the 580 is a Zotac card and the temps stay at or around 63C since it is water cooled, I just set the card down to 1.025v, as I doubt the card needs that much, I use MSI Afterburner and the fans are set to maximum, Afterburner keeps the fans running at maximum speed.

I think your problem is from the additional software that nVidia installer installs when you install the driver. I found that I really do not like the Performance package that comes with nVidia installer.

Now when I install a new driver, I go to advanced installation options and out of 5-6 items in the list select only 2: display driver (it is selected automatically) and Physics X.

If I want to overclock or underclock, I use nvidiaInspector. I tried Afterburner and did not like it.

I get rid of the update/experience and 3D stuff, since I have no use for either and I do a clean install.

Ok, I do the same.

When I open NVIDIA Control Panel, I have only three sections: 3D Settings, Display, Video. I used to have another section, called Performance, I think it came from NVIDIA System Tools package, it is not part of the driver installer, you download and install it separately. Do you have it installed?

This is under Settings: Manage 3D Settings: Power Management Mode: Prefer Maximum Power is set, though when higher number drivers down clock, this setting does no good, temps are under 65C(580) or 55C(570) and are always to 405MHz, only 266.58 WHQL does not downclock at all, getting a newer motherboard & cpu is not something that I can do this month and the motherboard will have to wait until October, the cpu January and the cooling February, mainly cause I have to pay cash since I don't have a credit card or credit score.

I use Window 7 Pro sp1 x64.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's

Vic, I know this will be of little comfort, but one of my crunchers suffers periodic, random, downclocking. The GTX760 should run with the memory clock at about 1500MHz, but about once a day it drops to about 160Mhz. This isn't a thermal issue as its been quite cool around here for the last couple of days (office is at 22C as type). I've just started using ZOTAC Firestorm, and just going into the "Clocks" tab is sufficient to kick the clock speed back up its correct 1500MHz. Most confusing. I am now trying the latest Nvidia Beta driver for this card to see if that helps....

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Bob Smith
Member of Seti PIPPS (Pluto is a Planet Protest Society)
Somewhere in the (un)known Universe?

Vic, I know this will be of little comfort, but one of my crunchers suffers periodic, random, downclocking. The GTX760 should run with the memory clock at about 1500MHz, but about once a day it drops to about 160Mhz. This isn't a thermal issue as its been quite cool around here for the last couple of days (office is at 22C as type). I've just started using ZOTAC Firestorm, and just going into the "Clocks" tab is sufficient to kick the clock speed back up its correct 1500MHz. Most confusing. I am now trying the latest Nvidia Beta driver for this card to see if that helps....

Do you use either EVGA Precision or the MSI Afterburner program? If you don't, you could try either one, their free, I like the MSI version since it seems to be easier to configure, you may have to play around with that Zotac Firestorm as it seems to be similar to the EVGA and the MSI programs, if it's run from startup it should I'd hope help, I run My video card fans at max output when crunching. as to why a card downclocks, I don't know, that's beyond Me, It could be a lot of things, I had to eliminate a lot of possible causes, I'm down to 2 possibles now, 1 is the motherboard and the chipset, 2 is the driver, Nvidia is primarily focused on Gamers, not crunchers. I even went so far as to buy a card to enhance the voltage going to the video cards, it's in a 1x slot that's attached to the southbridge, is it working? I don't think it effects the main pci-e slots and the 4x slot is now a 1x slot cause of that short little card, I'm trying to buy a motherboard that allows injection of clean voltage into the main pci-e bus, but that's a few months off, thankfully it's not a current and expensive(for Me) chipset...

In any case I downloaded it, I'll try it after I install 301.24, the Zotac program supports drivers from 300 and newer only, at least that's what I've read so far.

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The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's