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matnath1
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Dual RTX 2070 not Optimized vs Single Run RTX 2070 for PPD

Fri Jul 12, 2019 9:19 pm

Hey guys, it's been a while. I hope you are all doing well.
RE My Folding "team is Value Technology Team Number 158474 going strong with 1,300,000,000 Points
I have an interesting "situation"
For 3 months I have been running one RTX 2070 in my Lenovo Y900 i7 6700K 16GB , scoring 1 Mill PPD. THis runs 24/7 and so does the second rig (see below).
30 days ago I bought 2 RTX 2070 cards and added one to the above rig (not in sli) . On it's own the first card consistantly scored 1Mill PPD. I installed a second RTX 2070 into this rig (30 days ago) and now my PPD is "ONLY" averaging 1.6 Mill. This is a 30 day average simply selecting Alzheimers. Where are the other 400k PPD going?

My third RTX 2070 is in a seperate "Folding only" Dell Precision T3600 with an e5 3000 (similar to i7 Sandy Bridge) 16GB and that one , again over 30 days ... is consistantly scoring 1 mill PPD.

What is going on with the 2 2070's in my Y900 and why (no pun intended) is it not scoring 2 Mill PPD ?

Thoughts?
 
JustAnEngineer
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Re: Dual RTX 2070 not Optimized vs Single Run RTX 2070 for PPD

Fri Jul 12, 2019 11:35 pm

What is the typical GPU clock speed of your single vs. dual RTX2070 configurations? You could have some thermal throttling.
When you use two PCIe X16 slots on your motherboard, it may drop to X8 for each, or the second slot may always be at X4 while the first slot remains at X16. Perhaps that affects FAH performance? Are your two RTX2070s producing the same number of units?
Maybe your CPU is having trouble keeping both cards supplied with data. How many CPU folding threads are you running on these machines at the same time as the GPU threads?
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