Claymore and AMD GPU start-up order

[Sparkly]

I am trying to single out 1 specific card in a 6 card rig with different parameters than the rest, so let’s say:

-tt 70,75,75,75,75,75 -mclock 2100,2150,2150,2150,2150,2150

meaning in this case I want to set GPU 0 to 70C and 2100 memory clock, while the rest has 75C and 2150 clock.

The problem I am seeing is that GPU X is not necessarily the same card after every boot, so is there a way to force this, or figure it out during the start of Claymore, so you can adjust the same card every time?

[maomaopop]

I have that same problem too.

Here is a work around I am doing. But instead of using Claymore to specify the clock speed for X GPU. Why not use WATT-TOOL program to load profile at each startup and lock down the CORE/MEM speed. 

[Beoga]

I am trying to single out 1 specific card in a 6 card rig with different parameters than the rest, so let’s say:

-tt 70,75,75,75,75,75 -mclock 2100,2150,2150,2150,2150,2150

meaning in this case I want to set GPU 0 to 70C and 2100 memory clock, while the rest has 75C and 2150 clock.

The problem I am seeing is that GPU X is not necessarily the same card after every boot, so is there a way to force this, or figure it out during the start of Claymore, so you can adjust the same card every time?

You can indentify this card by using GPU-Z and temperature that displayed in miner.
You have to find card in gpu-z with mclock 2100 than see its temperature (also may see fan speed) than see card in  miner with the same temperature and fan speed - it is your card. Than see its index (GPU0 or GPU1 or.....)

[Ambros]

I am trying to single out 1 specific card in a 6 card rig with different parameters than the rest, so let’s say:

-tt 70,75,75,75,75,75 -mclock 2100,2150,2150,2150,2150,2150

meaning in this case I want to set GPU 0 to 70C and 2100 memory clock, while the rest has 75C and 2150 clock.

The problem I am seeing is that GPU X is not necessarily the same card after every boot, so is there a way to force this, or figure it out during the start of Claymore, so you can adjust the same card every time?

As claymore says in the README file the driver has a problem in index to manage clock and temperatures, they are different. The software tries to match them, but if can fail.
My personal advice is to download Wattool and use that to set profile at boot, so that you can use claymore just as a miner

[benz0]

-deleted- soz

[Sparkly]

Thanks for all the input, but what I ended up doing instead of fiddling with the WattMan/Claymore settings, just to single out that 1 card behaving differently, was just flashing the ROM of all cards with the 480LowEnergyOK posted here:

https://bitcointalk.org/index.php?topic=1584617.0

I am using:
6 x Sapphire Radeon Nitro+ OC 8GB GDDR5 (Samsung)
#SKU: 11260-01-20G

During the flashing I found that 1 of the cards was older and had a lower serial number than the rest, and it also had a different Flash Type, so the older card had a serial starting with A1651 and had a GD25Q41B Flash Type, while the other 5 had a serial starting with A1701 and had a Flash Type M25P20/c.

Before flashing, all cards were running 24MH+ with stock settings.

After flashing, the A1651 card is running 27MH+, while the A1701 cards are running 29MH+

There was also a difference in the Device Manager recognition of the cards after flashing, where the A1651 card is detected as “AMD Radeon (TM) RX 480”, while the A1701 cards are detected as “Radeon (TM) RX 480 Graphics”.

All cards are running the driver 21.19.137.514 dated 21.11.2016

The power consumption from the wall went from 1270W before flash, to 980W after flash.

Everything is now running stable at 173MH+ with no additional OC manually.