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Topic: Rig Problem, rx470 Nitro - strange issue (Read 315 times)

sr. member
Activity: 273
Merit: 250
BD People Are Legend
January 26, 2017, 08:47:31 AM
#2
what psu you use, what motherboard you use, what risers you use, what cables you use at external connector, what coin you mine, what os you use, what driver you use, do you undervolt, what power is at wall?
sr. member
Activity: 366
Merit: 250
January 26, 2017, 07:25:28 AM
#1
OK, I have bought a new batch of GPU's there are all RX470 Nitro 4GB with samsung memory. Total 6 GPUs in one Rig.

No matter what I do always 3 cards freezes after 0 up to 2 hours.

Here is what I have done:

- Exchanged PSU, MB, RAM, Risers, Processor.

This lead me to conclusion this is not hardware related problem so I messed with GPU bioses, figured I cut to much voltage so came back to no offset, changed timings (all kind of modification, 1500 , then 1625, then 1750 ended with 1900). Using 1080 core and memory from 1950 up to 2100. Everything same. So came back to stock bioses, here is a big surprice: nothing changed, always GPUs freezes after a while.

Then I splited GPUs to 2 separate machines, whenever there are up to 2 GPU's in a machine everything looks to go smoothy, whenever add 3rd GPU one of them starts to crash.

Oh one more thing, whenever  I got connected 6 GPUs, and lets say number 4 freezes, as soon as I unplugged it the problem looks to be shifting to next GPU, and it is not because of different numeration very often it goes to 0 or 1 for instance (which run smoothy with previous configuration).

Also thought it might be a problem of GPU itself, however whenever I connected the worse one to Rig where is up to 2 GPUs connected they run for hours without a single crash.

I don't have any other ideas and don't know what could be a problem or what should I check. Any help would be appreciated.



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