I currently have two 8800GT's running, not in SLI. In the stderr.txt, I see the shader speed for device 0 is listed as 810, whereas the device 1 is listed at 1512. Any reason why this would be? I checked Everest and it reports one 8800GT running at reduced core, shader, and memory speeds (400 core vs. 600 stock, 810 shader vs 1500 stock, and 499 memory vs 900 stock). Any ideas? The "slow" card is a PNY Verto GeForce 8800 GT, running in one of 3 x16 pci-e slots on my motherboard (the primary slot with my monitor connected is the card running at normal speeds).

http://www.gpugrid.net/result.php?resultid=60753

Any ideas?

Looks like the card is automatic reduce the speed while she's not using the 3D mode. Maybe a energy save modus?

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I'd also guess power saving. You know how to get it back to full speed?

MrS

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Scanning for our furry friends since Jan 2002

I'd also guess power saving. You know how to get it back to full speed?

MrS

No, I am not sure how to get it back running at stock speeds. However, looking back at the stderr.txt files, it appears it was always running like this.

I'd also guess power saving. You know how to get it back to full speed?

MrS

No, I am not sure how to get it back running at stock speeds. However, looking back at the stderr.txt files, it appears it was always running like this.

Install Rivatuner, then you can set the speed.

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No, I am not sure how to get it back running at stock speeds. However, looking back at the stderr.txt files, it appears it was always running like this.

Install Rivatuner, then you can set the speed.
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I have rivatuner installed, but it appears that the changes only affect my primary adapter. I can see any overclocks only on the primary (via Everest), but the secondary appears to always stay at 400/500/810 (instead of the stock 600/900/1500). Also, these two are not connected in SLI.

Any ideas?

Yes ... the same problem has a member from our Team.

My hind to this problem is BIOS update with nvflash with the Gridtested stable settings.

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Yes ... the same problem has a member from our Team.

My hind to this problem is BIOS update with nvflash with the Gridtested stable settings.

OK. I've looked into NiBiTor since the problem occurred. On the clockrates tab, it lists the expected stock values in the "Extra" row however has nothing in any of the other rows (3D/2D, etc.). Funny thing is that my primary video card has the same values in the same manner -- in the "Extra" row -- but it works fine. I'll try flashing the BIOS of the "slow card" to the stock values (putting them in "3D" as any NiBiTor guide suggests).

Is there any way to flash the BIOS of my secondary card while the primary (who is running at stock speeds) is in the system? For example, all the guides I've read indicate you just run nvflash with the .rom BIOS. But I'm concerned it will flash the primary card instead of the secondary -- does it prompt you for which one / is there a way to specifiy?? Worst case, I guess I can place the "slow" 8800GT in the primary slot and completely remove the "normal" one, replacing them back after the BIOS update. Was just trying to get around the little extra work. :-)

Thanks.

Flashing the bios is a bit extreme - you don't want to kill your card by doing anything wrong. I'd suggest contacting nVidia: just a short and professional query, telling them your motherboard, OS, driver version, cards etc. and asking them how to get the 2nd card up to stock speeds.

MrS

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Scanning for our furry friends since Jan 2002

OK, if you want to go for the flash I suggest the following: take the primary card out, maybe place the second one in the primary slot (may not matter, though) and then:

- take a look at what speeds this secondary card runs after you boot windows
- if it's stock clocks, run some stability test.. maybe a 3D Mark for a 1 hour loop
- if everything is fine your card should be fine and you can flash

If there is any hardware reason, which we're not aware of (e.g. reduced voltage), why it doesn't run normal stock speeds, then flashing its bios could render the card useless, because you couldn't boot with it to flash it back. There's no reason to take that risk ;)

MrS

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Scanning for our furry friends since Jan 2002

OK, if you want to go for the flash I suggest the following: take the primary card out, maybe place the second one in the primary slot (may not matter, though) and then:

- take a look at what speeds this secondary card runs after you boot windows
- if it's stock clocks, run some stability test.. maybe a 3D Mark for a 1 hour loop
- if everything is fine your card should be fine and you can flash

If there is any hardware reason, which we're not aware of (e.g. reduced voltage), why it doesn't run normal stock speeds, then flashing its bios could render the card useless, because you couldn't boot with it to flash it back. There's no reason to take that risk ;)

MrS

I can't imagine it's a power issue, as I only have two 8800GT's with 1 power adapter each -- my PSU is 750w and comes with 2 pci-e power cables. I have switched the power cables between the two adapters, but it seems to make no difference.

I was planning on booting only with the "slow" card as the primary card, just to see what happens. I don't want to flash the BIOS if I can avoid it, but I do have a support request in to PNY (maker of the card). I will definitely wait to see what they say before doing anything drastic like a BIOS update.

Thanks for the advice.

I also flashed the BIOS of my 8800GTS, its quite easy... The biggest problem is to prepare a bootable medium, if you don't have a USB flash drive or floppy to hand ;-)

In case you flash the wrong BIOS, you can use an old PCI video card to start the system and flash back the original BIOS, that you saved before.

My 9800GT had the problem that it was running at 600MHz core, 1512MHz shaders but only 500MHz on the memory. I fixed that (under Linux) by inserting

options nvidia NVreg_DeviceFileUID=0 NVreg_DeviceFileGID=44 NVreg_DeviceFileMode=0660
options nvidia NVreg_RegistryDwords="PerfLevelSrc=0x2222"
options nvidia NVreg_Mobile=1

into /etc/modprobe.d/nvidia-kernel-nkc

There should be similar settings in windows registry to always force the highest powermizer setting...

Well, it sounds safe enough then.

MrS

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Scanning for our furry friends since Jan 2002

I had the same problem with my 2 8800GT's.
The 2nd 8800GT would run at 400/810/500 (instead of 600/1500/900)
That only started after I installed the 177.67 drivers :(

If I un-installed the drivers, rebooted, re-installed, rebooted then both cards would run at their normal speeds, however upon next reboot the 2nd card would run at 400/810/500.

Going back to the older CUDA1 beta drivers and the 2nd card did not have that problem, however you can't run ps3grid with them :(

I ended up putting the 2nd card in another machine.
I have not tried again since I am now using Vista (with 177.92 drivers), and have only 1 monitor (great idea Microsoft!)

It seems to be a driver problem.
My 8800GT's are different speeds, and even the factory OC one got down clocked to 400/810/500 (from 700/1700/1000), when I tried swapping the cards about.

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Down with the Kredit Kops!!!

If I un-installed the drivers, rebooted, re-installed, rebooted then both cards would run at their normal speeds, however upon next reboot the 2nd card would run at 400/810/500.

Going back to the older CUDA1 beta drivers and the 2nd card did not have that problem, however you can't run ps3grid with them :(

It seems to be a driver problem.

Well, that stinks. I'll still test the "slow" card by itself to see if it runs full speed. I'm pretty sure I've had the "slow" card in as primary with my "normal" card in as secondary, and the results were the same. So, essentially it didn't matter which slot or which power cable, the "slow" card was always slow with the other being normal.

I'll also try some different drivers (of course staying recent enough to run gpu-grid). Maybe I can find the right combination or an upcoming driver will resolve the issue.

Thanks.

http://forum.notebookreview.com/showthread.php?t=261929
http://forums.mydigitallife.info/showthread.php?p=36745

Please check if forcing the highest powermizer settings helps...

http://forum.notebookreview.com/showthread.php?t=261929
http://forums.mydigitallife.info/showthread.php?p=36745

Please check if forcing the highest powermizer settings helps...

Think this will work even on a desktop?

http://forum.notebookreview.com/showthread.php?t=261929
http://forums.mydigitallife.info/showthread.php?p=36745

Please check if forcing the highest powermizer settings helps...

Didn't work as I do not have that registry entry. Probably because this is a desktop and not a laptop.

\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Video\{**unique to you for nvidia**}\0000\PerfLevelSrc -- did not exist in any of the 7 folders with "0000" under them in the Video folder.

I had the same problem with my 2 8800GT's.
The 2nd 8800GT would run at 400/810/500 (instead of 600/1500/900)
That only started after I installed the 177.67 drivers :(

If I un-installed the drivers, rebooted, re-installed, rebooted then both cards would run at their normal speeds, however upon next reboot the 2nd card would run at 400/810/500.

Going back to the older CUDA1 beta drivers and the 2nd card did not have that problem, however you can't run ps3grid with them :(

Same problem here -- reinstalled a different driver and it works upon reset. However, after another reboot it was back to the slow speed. Annoying, but good to know there is not something physically wrong with the card. Running gpugrid with 1.5 8800GT's is fine until there is a fix via video driver, etc.

Thanks for the help.

Ok, this may help, but let me Preface my post:

I have almost zero experience with the GPUGRID/Boinc deal (I run WCG/Boinc). I have it setup and running as of ~1-2hrs ago. But I do have plenty of experience with the F@H GPU2 client and running multiple GPUs on the same rig. That said:

If You are running Vista (32 or 64) OR XP SP3....then you probably need to extend the desktop to each card.
A) Extend the Desktop in Display Properties after You "attach a Monitor to each card"--There are 3 ways to do this:

1) Attach a monitor to each card.
2) Your TV set may very well be accepted as a Monitor.
3) Use a VGA to DVI Dummy--here's a link: DVI to VGA Dummy.....56K! The dremel and all that is not necessary. Read through the post, if ya like. Just insert the resistors into the proper holes and attach to the card, then reboot and Vista/XP SP3 will detect it as a non-pnp monitor.

In F@H GPU2 config there is an option to set the GPU priority slighty higher--in F@H that will fix the unequal speed issue. Also, the same issue in F@H GPU2 was GPU -0 running slower (~50%) then GPU -1....as I'm seeing here. I haven't seen any setting(s) like that with the Boinc/GPUGRID, but it may help to set it in Task Manager.

HTH