EVGA

Helpful ReplyHow does 4x PCI-E slot affect folding?

Author
Blizzie
CLASSIFIED ULTRA Member
  • Total Posts : 5462
  • Reward points : 0
  • Joined: 2007/07/04 16:30:40
  • Location: California
  • Status: offline
  • Ribbons : 17
2010/04/13 14:58:22 (permalink)
If I have a GTX 260 in a 4x PCI-E slot (handled by PCH in P55) how does that affect the folding capabilities?


#1
EvAnA11
New Member
  • Total Posts : 73
  • Reward points : 0
  • Joined: 2007/12/07 17:48:45
  • Location: WA
  • Status: offline
  • Ribbons : 0
Re:How does 4x PCI-E slot affect folding? 2010/04/13 15:19:54 (permalink) ☄ Helpful
I've read that it doesn't make a big difference, but I could be wrong because I've never tested it myself.

Here are some benchmarks using different slots.
http://www.tomshardware.com/reviews/pci-express-2.0,1915-11.html

No folding tests in there but I can't imagine it being that much different from gaming.
post edited by EvAnA11 - 2010/04/13 15:21:55

#2
mflanaga
CLASSIFIED Member
  • Total Posts : 3077
  • Reward points : 0
  • Joined: 2009/05/13 18:48:11
  • Status: offline
  • Ribbons : 15
Re:How does 4x PCI-E slot affect folding? 2010/04/13 15:33:35 (permalink) ☄ Helpful
I have a 9800GT in a x1 slot (using a riser) and there's no difference between that one and other slots..GPU folding requires very little bandwith.
I once ran 4  9800GT's in ONE computer. THREE of them were on risers to fit in the x1 slots.. An old ASUS p5B ;still got it too, just not folding on it as I sold all but one of the cards.
post edited by mflanaga - 2010/04/13 17:20:00

   
             
  
      
#3
Blizzie
CLASSIFIED ULTRA Member
  • Total Posts : 5462
  • Reward points : 0
  • Joined: 2007/07/04 16:30:40
  • Location: California
  • Status: offline
  • Ribbons : 17
Re:How does 4x PCI-E slot affect folding? 2010/04/13 15:37:18 (permalink)
@EvAnA11: The benchmark shows very little difference between having less bandwidth -- thanks.

@mflanaga: Good to know, thanks.


#4
Governator
CLASSIFIED Member
  • Total Posts : 3103
  • Reward points : 0
  • Joined: 2008/02/04 13:29:47
  • Location: Bozeman, MT
  • Status: offline
  • Ribbons : 3
Re:How does 4x PCI-E slot affect folding? 2010/04/13 16:06:14 (permalink)
Good info guys, was wondering the same thing myself

HEATWARE
 
Mobo: Asus Z690 Maximus Extreme (BIOS 2103) | CPU: Intel Alder Lake i9-13900K (@6.2Ghz) w/EK-Quantum Velocity² D-RGB Nickel + Acetal | GPU: Evga 3080Ti FTW3 Ultra w/EKWB Quantum Vector | RAM: 64GB DDR5 (2x32GB) Kingston Fury Beast KF556C40BBK2-64 @XMP2 | SSD: 2x WD SN850 2TB NVMe (m.2_2, m.2_3) | Power Supply: EVGA SuperNOVA 1600 P2 | Cooling: Dual Loop 2x EK-Quantum Kinetic TBE 300 D5 PWM D-RGB - Plexi  / HWL 420GTS/Corsair XR5 420 Rads | Case: Corsair 7000D Airflow | OS: Microsoft Windows 11 Pro 64 Bit | Monitor: ROG Strix XG438Q | KB: CORSAIR K100 RGB Optical-Mechanical | Sound: Onboard Realtek via SPDIF (Logitech Z625 THX)

#5
pgmoney
CLASSIFIED Member
  • Total Posts : 3859
  • Reward points : 0
  • Joined: 2008/12/19 20:39:26
  • Status: offline
  • Ribbons : 18
Re:How does 4x PCI-E slot affect folding? 2010/04/13 16:25:59 (permalink)
yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card.

 


#6
flyinion
CLASSIFIED Member
  • Total Posts : 2275
  • Reward points : 0
  • Joined: 2007/03/27 12:17:04
  • Location: California
  • Status: offline
  • Ribbons : 8
Re:How does 4x PCI-E slot affect folding? 2010/04/13 16:30:12 (permalink)
Yeah I would think if you can use a 4x slot for Physx purposes, there shouldn't be any effect on folding.  Maybe I misunderstand how much data is being fed for folding though which is very possible since I've only been at this a couple months and don't know any of the finer details of what's going on.

AMD Ryzen 5950X | Asus Crosshair VIII Hero | Gigabyte Gaming OC 4090 w/EK Vector2 | GSkill Trident Z Neo 2x16GB DDR4-3600 | WD SN850 2TB | Samsung 970 EVO Plus 500GB & 860 Evo 2TB | Phanteks Enthoo 719 | Seasonic Prime Ultra Gold 1000W | Steelseries M750 TKL | SteelSeries Prime Wireless | SteelSeries Arctis Pro + GameDAC | Kanto YU2 + Yamaha sub | Schiit Magni 2 Uber & Modi 2 Uber | LG 34GN850 | Asus PG279Q | Win 11 Pro | Custom water loop
#7
Blizzie
CLASSIFIED ULTRA Member
  • Total Posts : 5462
  • Reward points : 0
  • Joined: 2007/07/04 16:30:40
  • Location: California
  • Status: offline
  • Ribbons : 17
Re:How does 4x PCI-E slot affect folding? 2010/04/13 16:44:19 (permalink)
pgmoney

yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card.


Does that mean I can't have a 480 with a 260 in the future?

I was planning to get a 480 later and run it with two 260s.


#8
Full Metal Folder
iCX Member
  • Total Posts : 483
  • Reward points : 0
  • Joined: 2008/07/14 16:31:55
  • Status: offline
  • Ribbons : 4
Re:How does 4x PCI-E slot affect folding? 2010/04/13 16:47:04 (permalink)
Blizzie

pgmoney

yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card.


Does that mean I can't have a 480 with a 260 in the future?

I was planning to get a 480 later and run it with two 260s.

 
As far as i know the updated core version 1.31 took care of that problem.

#9
heydabop
SSC Member
  • Total Posts : 635
  • Reward points : 0
  • Joined: 2009/03/04 14:45:12
  • Status: offline
  • Ribbons : 0
Re:How does 4x PCI-E slot affect folding? 2010/04/13 20:59:06 (permalink)
Full Metal Folder

Blizzie

pgmoney

yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card.


Does that mean I can't have a 480 with a 260 in the future?

I was planning to get a 480 later and run it with two 260s.

 
As far as i know the updated core version 1.31 took care of that problem.



That's also what I've been hearing. Mixed card folding appears to work just fine now.

Please stop deleting WU's. 

My Current Folding@Home Status (via HFM.net) 


#10
Blizzie
CLASSIFIED ULTRA Member
  • Total Posts : 5462
  • Reward points : 0
  • Joined: 2007/07/04 16:30:40
  • Location: California
  • Status: offline
  • Ribbons : 17
Re:How does 4x PCI-E slot affect folding? 2010/04/14 13:48:02 (permalink)
heydabop

Full Metal Folder

Blizzie

pgmoney

yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card.


Does that mean I can't have a 480 with a 260 in the future?

I was planning to get a 480 later and run it with two 260s.


As far as i know the updated core version 1.31 took care of that problem.



That's also what I've been hearing. Mixed card folding appears to work just fine now.


Can anyone verify? I don't want surprises later..


#11
pgmoney
CLASSIFIED Member
  • Total Posts : 3859
  • Reward points : 0
  • Joined: 2008/12/19 20:39:26
  • Status: offline
  • Ribbons : 18
Re:How does 4x PCI-E slot affect folding? 2010/04/14 19:17:36 (permalink)
Blizzie

heydabop

Full Metal Folder

Blizzie

pgmoney

yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card.


Does that mean I can't have a 480 with a 260 in the future?

I was planning to get a 480 later and run it with two 260s.


As far as i know the updated core version 1.31 took care of that problem.



That's also what I've been hearing. Mixed card folding appears to work just fine now.


Can anyone verify? I don't want surprises later..


if that has changed it is news to me.
i don't mix cards on the same board for folding because everytime i have tried regardless of what stanford says it has always lowered my ppd for the other card.
 
so they can say it is fixed but ppd wise with mixed cards i say it is not fixed.
 
I just tested my 9800gt with a 275 earlier today and i can confirm my 275 dropped down to 5 k ppd. half of what it was producing.
 
shut the rig down pulled the 9800gt and my 275 ppd went back up. can someone else verify if his is fixed, because i can't seem to get it to work and if it does i got more cards that can be folding sitting here in boxs new.
 
is there a update i missed somewhere?
yes i am running some of the latest drivers 196.21 the rest after that are to unstable or too hot for me.
 
i say not fixed but there may be something else others know that i don't. i don't always know every thing but i can tell you what my cards did today in mixed mode on the same board.
 
I hope someone else can give a def answer here, and where as well as what fixed this if so.

 


#12
Full Metal Folder
iCX Member
  • Total Posts : 483
  • Reward points : 0
  • Joined: 2008/07/14 16:31:55
  • Status: offline
  • Ribbons : 4
Re:How does 4x PCI-E slot affect folding? 2010/04/14 20:25:13 (permalink)
Here is the info on mix GPU folding.
 
 The latest core is available at http://www.stanford.edu/~friedrim/FahCore_11.exe; the version id is v1.31. In addition to the changes mentioned in this thread, this core includes a fix that addresses problems people were having on multi-GPU systems with mismatched cards. It also includes updates to the checkpointing logic to prevent checkpoint files that are not removed from being reused on a different work unit.


http://www.gnd-tech.com/main/showthread.php/542-Posible-fix-for-foldin-with-different-GPU-s
post edited by Full Metal Folder - 2010/04/14 20:27:41
#13
heydabop
SSC Member
  • Total Posts : 635
  • Reward points : 0
  • Joined: 2009/03/04 14:45:12
  • Status: offline
  • Ribbons : 0
Re:How does 4x PCI-E slot affect folding? 2010/04/14 20:42:38 (permalink)
pgmoney

Blizzie

heydabop

Full Metal Folder

Blizzie

pgmoney

yep i have done it with gtx 260 myself in x1 and x4 slots in the past and it doesn't make a difference on ppd. only thing it will affect is if you have a crad with more cores on the same board the higher core card will drop down to match the lower core card.


Does that mean I can't have a 480 with a 260 in the future?

I was planning to get a 480 later and run it with two 260s.


As far as i know the updated core version 1.31 took care of that problem.



That's also what I've been hearing. Mixed card folding appears to work just fine now.


Can anyone verify? I don't want surprises later..


if that has changed it is news to me.
i don't mix cards on the same board for folding because everytime i have tried regardless of what stanford says it has always lowered my ppd for the other card.
 
so they can say it is fixed but ppd wise with mixed cards i say it is not fixed.
 
I just tested my 9800gt with a 275 earlier today and i can confirm my 275 dropped down to 5 k ppd. half of what it was producing.
 
shut the rig down pulled the 9800gt and my 275 ppd went back up. can someone else verify if his is fixed, because i can't seem to get it to work and if it does i got more cards that can be folding sitting here in boxs new.
 
is there a update i missed somewhere?
yes i am running some of the latest drivers 196.21 the rest after that are to unstable or too hot for me.
 
i say not fixed but there may be something else others know that i don't. i don't always know every thing but i can tell you what my cards did today in mixed mode on the same board.
 
I hope someone else can give a def answer here, and where as well as what fixed this if so.



Lalalalala, I'm not listening....dangit, didn't work. I really want to fold with my GTS 250 alongside my GTX 470.... 


Although, if I can fold on my GTX 470, they'll have to have a completely new, GPU3, core out. So maybe that will work well with mixed card systems, as they currently seem to be hit-and-miss right now.
post edited by heydabop - 2010/04/14 20:44:07

Please stop deleting WU's. 

My Current Folding@Home Status (via HFM.net) 


#14
Blizzie
CLASSIFIED ULTRA Member
  • Total Posts : 5462
  • Reward points : 0
  • Joined: 2007/07/04 16:30:40
  • Location: California
  • Status: offline
  • Ribbons : 17
Re:How does 4x PCI-E slot affect folding? 2010/04/15 11:21:34 (permalink)
Full Metal Folder

Here is the info on mix GPU folding.
 
 The latest core is available at http://www.stanford.edu/~friedrim/FahCore_11.exe; the version id is v1.31. In addition to the changes mentioned in this thread, this core includes a fix that addresses problems people were having on multi-GPU systems with mismatched cards. It also includes updates to the checkpointing logic to prevent checkpoint files that are not removed from being reused on a different work unit.


http://www.gnd-tech.com/main/showthread.php/542-Posible-fix-for-foldin-with-different-GPU-s


I'm on Core 11. I only have 250s and 260s so I wouldn't be able to tell PPD difference. Is there anyone that can verify?


#15
Jump to:
  • Back to Mobile