[0.02 ETH] Troubleshoot with rigs

[Greedful]

Hi,
I have some troubles with 2 rigs, H81 pro btc + 6 RX 480 ref, LEPA Platinium 1700w and I'm using SmOS with claymore Eth
Since 2 weeks, I have a lot of reboot, I change wd to 0 and reboot to 0. And some GPU stop hashing but I cannot find one "defaillant" GPU. So I change some risers, downcloack mem and freq but nothing change..
Sometimes, one GPU is not detected after a reboot, so I need to unplug risers, power on, power off, and plug risers.

I have good PCI risers, all my RX are flashed with Eliovp roms

https://image.ibb.co/btG6YQ/freezegpu.png
Args for claymore :
"-epool eu1.ethermine.org:4444 -ewal $walletETH.$rigName -esm 0 -epsw x -dpool pasc-eu1.nanopool.org:15555 -dwal 86646-64.c9b74e7b28304650.$rigName -dpsw x -allpools 1 -mport -3333 -etha 0 -dbg 1 -wd 0 -r 0 -dcri 12 -dcoin pasc "

Anyone have a good method to diagnose what's going wrong ? My rigs was working pretty well but since 2 weeks, it's terrible..
I offer 0,02 eth for a good help
Thanks

[th00ber]

hi.

it's always the same card that are faulty ?
try switch cards on mb and check if it's the same card ... or the same slot-card who is faulty ?

I git this kibd of trouble, it was a weakness on my psu.
what is your PSU ? does the 12v is mono or multi-rail ?
if multi-rail, be sure that is not overloaded even if the total power of the PSU is not reached.

[Greedful]

hi.

it's always the same card that are faulty ?
try switch cards on mb and check if it's the same card ... or the same slot-card who is faulty ?

I git this kibd of trouble, it was a weakness on my psu.
what is your PSU ? does the 12v is mono or multi-rail ?
if multi-rail, be sure that is not overloaded even if the total power of the PSU is not reached.

Nop, a lot of card can be faulty
I already switch card in different pci slot of the mb and there isn't one "faulty" card or slot pci
I think it's multi, so you think that my psu is "overloaded" ?

[Ahead]

Hi,

Are you using a UPS for the rig? If not, maybe the PSU is having some issues (had some power losses etc, and something is damaged inside).
Try removing some cards (just the power from the card and the riser) and see if the rig is more stable with less cards.
If it is, then my guess is that the PSU is getting faulty...

[th00ber]

hi.

it's always the same card that are faulty ?
try switch cards on mb and check if it's the same card ... or the same slot-card who is faulty ?

I git this kibd of trouble, it was a weakness on my psu.
what is your PSU ? does the 12v is mono or multi-rail ?
if multi-rail, be sure that is not overloaded even if the total power of the PSU is not reached.

Nop, a lot of card can be faulty
I already switch card in different pci slot of the mb and there isn't one "faulty" card or slot pci
I think it's multi, so you think that my psu is "overloaded" ?

for my rig, that was the case ...
my 1600W PSU is splitted.
http://imagescdn.tweaktown.com/content/4/7/4704_02_lepa_g1600_ma_1600_watt_power_supply_review.png



so 30A = 360W MAX.
but the rail is for 2 gpu connectors.
so 2 gpu at 200W overloaded it ...
a guy with troubles : http://www.jonnyguru.com/forums/showthread.php?t=12816


may you have that kind of PSU, what is the model ?