Big PPD drop: ~15,700 to ~ 5500!

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warriorpoet
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Big PPD drop: ~15,700 to ~ 5500!

Post by warriorpoet » Sat Aug 20, 2011 7:03 am

Everything's the same. Same clocks, same FAH Control version, same OS. Same same same.

Why, then, is my GPU PPD dropping by 10k points?

One other note: desktop behavior has been a little weird lately. Windows Aero dropping in and out of operation, soft-locks and clunky video performance. I fired up OCCT and EVGA's stability checker, lowered some clocks and tried a few hours of gaming, but the only issue I had was while running the FAH Control module. So I put clocks back to where they were and same deal; OCCT + OC Scanner + Gaming is hotter, but more stable than FAH Control. I thought it might be a bad project file, so I flushed and tried again. Instability is gone, but PPD is still WAY low.

Is there an experimental batch of badness coming through or what?

edit: found the issue. DO NOT INSTALL nVIDIA DRIVER 280.26!
Last edited by warriorpoet on Mon Aug 22, 2011 3:40 pm, edited 1 time in total.
ATCS840/ Seasonic X-750/ 2500k 4.4 GHz (Koolance CPU-370)/ Gigabyte z68xp-ud4/ eVGA 570 865,1730,1950 (Koolance VID-580)/ 8Gb G.Skill DDR3 1866/ Corsair Force 3 120Gb, Samsung 470 128 Gb, Scorpio Black 750 2.5" (Quiet Drive)/ EK DCP-2.2 (res., gel-stuff)/ XSPC RX360, Swiftech MCR220QP/ 3 Scythe GT ~300-550RPM, 3 NB Multi-frame ~400-600RPM, 3 230mm 300RPM-> Lamptron FC-4/ Akasa AcoustiPack

frenchie
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Re: Big PPD drop: ~15,700 to ~ 5500!

Post by frenchie » Sat Aug 20, 2011 2:21 pm

I noticed the new (?) GPU WUs are very different, and dropped my ppd quite a bit... if you look at their point values, you'll see what I mean. Each WU will give you more points than before, but they take longer to complete. Overall, it's a drop in points for me.
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frenchie
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Re: Big PPD drop: ~15,700 to ~ 5500!

Post by frenchie » Sun Aug 21, 2011 4:25 am

Googled around a bit. Check this out : http://forums.overclockers.com.au/showt ... p?t=978973

2 things about these new WUs :
- watch your temps, especially if overclocked (reports of 10 to 20 deg C rise !!!! :? :shock: )
- update to a more recent set of drivers (ppd increase, no temp drop) ; the 280 series seems to work, I'll have to try and see.

If anyone tries a set of drivers, can you post it here ? thanks !
Main/gamming : Antec Solo|X-650|Asus P5Q-E|Intel Q9550@3.4GHz|HR-01 Plus 120mm Nexus @6V|Corsair 2x2Go XMS2 DHX cas 4 @4-4-4-12|Exhaust Nexus 120mm @9V|Intel X25M G2 160Gb|Samsung 1TB in SQD|2xGigabyte GTS450 OC (@900/1900/3800)|GPU fan 120mm Nexus @6V
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warriorpoet
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Re: Big PPD drop: ~15,700 to ~ 5500!

Post by warriorpoet » Sun Aug 21, 2011 5:14 pm

Temps are actually a bit lower (?). Both my GPU and CPU are under water blocks, so temps are hardly a concern; the GPu maxes out at 56c and the CPU at 62c.

I could understand a 10% drop, but less than 50%? Yikes.
ATCS840/ Seasonic X-750/ 2500k 4.4 GHz (Koolance CPU-370)/ Gigabyte z68xp-ud4/ eVGA 570 865,1730,1950 (Koolance VID-580)/ 8Gb G.Skill DDR3 1866/ Corsair Force 3 120Gb, Samsung 470 128 Gb, Scorpio Black 750 2.5" (Quiet Drive)/ EK DCP-2.2 (res., gel-stuff)/ XSPC RX360, Swiftech MCR220QP/ 3 Scythe GT ~300-550RPM, 3 NB Multi-frame ~400-600RPM, 3 230mm 300RPM-> Lamptron FC-4/ Akasa AcoustiPack

cordis
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Re: Big PPD drop: ~15,700 to ~ 5500!

Post by cordis » Sun Aug 21, 2011 7:26 pm

Huh, it could be a downclocking issue. Are you seeing any drops in gpu clock rate? Might want to try to get afterburner running and see if something is going on with that. There's something of a known issue with gpus just automatically downclocking themselves for no particular reason. Here's a link: http://foldingforum.org/viewforum.php?f ... 7afff8a76e, check the threads on 'Nvidia driver lottery' and 'gtx 460 slows down'. But it could also be the new gpu wus, I haven't done any gpu folding for a while so I haven't seen much about them.

frenchie
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Re: Big PPD drop: ~15,700 to ~ 5500!

Post by frenchie » Mon Aug 22, 2011 1:08 pm

Nope, no downclocking.... The only thing I noticed was 7xxx projects. And when I check my client performace, I do see 7620 and 7621 units that yielded 1500 points less per day than the regular WUs. Back to "normal" WU for now it seems...

warriorpoet, do you have a way to check the WUs you were working on when you noticed the drop ?

[EDIT]
Putting all links in one topic (thanks cordis) : http://foldingforum.org/viewtopic.php?f=24&t=19390
Main/gamming : Antec Solo|X-650|Asus P5Q-E|Intel Q9550@3.4GHz|HR-01 Plus 120mm Nexus @6V|Corsair 2x2Go XMS2 DHX cas 4 @4-4-4-12|Exhaust Nexus 120mm @9V|Intel X25M G2 160Gb|Samsung 1TB in SQD|2xGigabyte GTS450 OC (@900/1900/3800)|GPU fan 120mm Nexus @6V
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warriorpoet
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Re: Big PPD drop: ~15,700 to ~ 5500!

Post by warriorpoet » Mon Aug 22, 2011 3:08 pm

frenchie wrote:Nope, no downclocking.... The only thing I noticed was 7xxx projects. And when I check my client performace, I do see 7620 and 7621 units that yielded 1500 points less per day than the regular WUs. Back to "normal" WU for now it seems...

warriorpoet, do you have a way to check the WUs you were working on when you noticed the drop ?

[EDIT]
Putting all links in one topic (thanks cordis) : http://foldingforum.org/viewtopic.php?f=24&t=19390
Yeah, they were all 6800s.
ATCS840/ Seasonic X-750/ 2500k 4.4 GHz (Koolance CPU-370)/ Gigabyte z68xp-ud4/ eVGA 570 865,1730,1950 (Koolance VID-580)/ 8Gb G.Skill DDR3 1866/ Corsair Force 3 120Gb, Samsung 470 128 Gb, Scorpio Black 750 2.5" (Quiet Drive)/ EK DCP-2.2 (res., gel-stuff)/ XSPC RX360, Swiftech MCR220QP/ 3 Scythe GT ~300-550RPM, 3 NB Multi-frame ~400-600RPM, 3 230mm 300RPM-> Lamptron FC-4/ Akasa AcoustiPack

warriorpoet
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Re: Big PPD drop: ~15,700 to ~ 5500!

Post by warriorpoet » Mon Aug 22, 2011 3:36 pm

Found the culprit. nVidia Driver 280.26 caused:

1. a PPD drop of 10k points
2. a WEI score drop of 0.8 points
3. Fallout New Vegas instability

I rolled back to the last WHQL 270 driver and all is well.
ATCS840/ Seasonic X-750/ 2500k 4.4 GHz (Koolance CPU-370)/ Gigabyte z68xp-ud4/ eVGA 570 865,1730,1950 (Koolance VID-580)/ 8Gb G.Skill DDR3 1866/ Corsair Force 3 120Gb, Samsung 470 128 Gb, Scorpio Black 750 2.5" (Quiet Drive)/ EK DCP-2.2 (res., gel-stuff)/ XSPC RX360, Swiftech MCR220QP/ 3 Scythe GT ~300-550RPM, 3 NB Multi-frame ~400-600RPM, 3 230mm 300RPM-> Lamptron FC-4/ Akasa AcoustiPack

frenchie
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Re: Big PPD drop: ~15,700 to ~ 5500!

Post by frenchie » Mon Aug 22, 2011 3:45 pm

That's good to hear !!
Main/gamming : Antec Solo|X-650|Asus P5Q-E|Intel Q9550@3.4GHz|HR-01 Plus 120mm Nexus @6V|Corsair 2x2Go XMS2 DHX cas 4 @4-4-4-12|Exhaust Nexus 120mm @9V|Intel X25M G2 160Gb|Samsung 1TB in SQD|2xGigabyte GTS450 OC (@900/1900/3800)|GPU fan 120mm Nexus @6V
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warriorpoet
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Re: Big PPD drop: ~15,700 to ~ 5500!

Post by warriorpoet » Mon Aug 22, 2011 4:10 pm

Eh nuts. All was well, then I rebooted.

Now F@H tops out at 50% load on the GTX. Wondering how to fix this...

edit: somehow my CPU priority was resetting itself to "Real Time". That'll put a dent in your PPD :p
ATCS840/ Seasonic X-750/ 2500k 4.4 GHz (Koolance CPU-370)/ Gigabyte z68xp-ud4/ eVGA 570 865,1730,1950 (Koolance VID-580)/ 8Gb G.Skill DDR3 1866/ Corsair Force 3 120Gb, Samsung 470 128 Gb, Scorpio Black 750 2.5" (Quiet Drive)/ EK DCP-2.2 (res., gel-stuff)/ XSPC RX360, Swiftech MCR220QP/ 3 Scythe GT ~300-550RPM, 3 NB Multi-frame ~400-600RPM, 3 230mm 300RPM-> Lamptron FC-4/ Akasa AcoustiPack

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