Problem with Radeon Wattman I guess

[Cereberus]

I am mining normally with 3 RX 480 8GB cards, 2 are Sapphire Nitro + and 1 is Sapphire Nitro. After some time, usually within a few hours the hashrate goes down to zero , the system freeze and it shows this error.

GENERAL
Default Radeon Wattman settings have been restored due to an unexpected system failure.

PSU is Corsair Rx1000 watt so I don't think is because of PSU.

Any suggestions or ideas ?

[xxcsu]

i dont think you have problem with wattman , as you got this error : "Default Radeon Wattman settings have been restored due to an unexpected system failure " wattman always restoring the default settings after system failure .

If you are overclocking your cards , and not undervolting the mem , gpu , then your 1000Watts PSU is not enough for your 6 cards .

The problem you might have:
- improper bios mods on vga cards
- overclocked cards without proper undervolting
- Your 1000W psu is weak for the 6 overclocked cards without proper undervolting
- your overclock settings are not right for your setup , this create system instability / total system failure / reboot or system freeze , after reboot or system freeze wattman restoring your default settings for your own protection...
- One of your psu rail is overloaded ( u using one rail to power more than one riser/vga card )

Also ... a full system spec would be great , that way you might able to get more help

[QuintLeo]

Could also be an overheating issue in one or more of the cards, or somewhere else in the system.

More likely though you're pushing the PS too hard.

[Cereberus]

I think none of you read what I have written, I only have 3 cards running and the PSU is 1000watt gold plus, more than enough to run the cards without a problem, in fact when I have only 2 cards running the PSU cooler doesn't even start, it only starts when the 3rd card is slotted in. So maybe some of the card overheats too much ? Can this be a problem ? Would Asus Direct CU RX 480 be a better choice or RX 580 as I don't see any Direct CU for RX 480 ?

Full System
Mobo: Z97X Gaming 5 GIGABYTE
Proc: G3240 Intel 4th gen pentium dual core
SSD: 120 GB kingston
RAM; Kingston 8 GB DDR3
PSU: Corsair Rm 1000i gold 80 plus
GPU-s: 3 X RX 480 (1 in PCIEX 16, 1 in PCIEX 8 and one in a Riser)

Edit: All cards are on stock settings, nothing modified.

Edit: Now the mobo doesn't turn on anymore, I guess it was a defective unit ?

[opmac]

i am having the above problems as well with a 1300 watt evga gold psu

Cards have not been over clocked as well

Running 3 *  R9 390 8 GB
1                RX 470 4 GB

z87- plus mobo

Pulling my hair out here  :/

[coinzoid]

I think none of you read what I have written, I only have 3 cards running and the PSU is 1000watt gold plus, more than enough to run the cards without a problem, in fact when I have only 2 cards running the PSU cooler doesn't even start, it only starts when the 3rd card is slotted in. So maybe some of the card overheats too much ? Can this be a problem ? Would Asus Direct CU RX 480 be a better choice or RX 580 as I don't see any Direct CU for RX 480 ?

Full System
Mobo: Z97X Gaming 5 GIGABYTE
Proc: G3240 Intel 4th gen pentium dual core
SSD: 120 GB kingston
RAM; Kingston 8 GB DDR3
PSU: Corsair Rm 1000i gold 80 plus
GPU-s: 3 X RX 480 (1 in PCIEX 16, 1 in PCIEX 8 and one in a Riser)

Edit: All cards are on stock settings, nothing modified.

Edit: Now the mobo doesn't turn on anymore, I guess it was a defective unit ?

If you have a paperclip you can test your PSU. This way you can identify if PSU is bad or mobo. Have a look at following video.

https://www.youtube.com/watch?v=5FWXgQSokF4