Quote from: Chiko.Chavez on March 14, 2018, 01:27:54 AM

Yesterday I tried to undervolt my rig and now I am having some major issues, any help would be greatly appreciated.

Rig is 6x RX 580s (all with mixed Hynix and Samsung memory) on Asus Mining Expert board running blockchain driver with Polaris one click bios.

The usual OC and voltage setting I use in the config file for Claymore's miner are

-cclock 1150
-cvddc 900
-mvddc 950
-mclock 2200

My usual power usage at the wall is 1070W, HWinfo usually shows gpu chip power of 97w per card.

The settings I tried were

-cclock 1150
-cvddc 875
-mvddc 925
-mclock 2150

After starting Claymore v 11.4 I went back into the config file and edited the settings back to my usual oc/voltages so that if it crashed it would apply them on reboot.

After about an hour the rig crashed (CCL error gpu 5)it rebooted and it restarted claymore with my usual settings. I noticed that the power usage at the wall had jumped up to around 1285w and HWinfo was showing gpu power usage of around 120w per card. HWinfo and GPU-z were showing that my GPU's were running at the usual clocks/voltages 1150/2200 900/950 so I stopped Claymore and manually restarted my rig.

When it restarted the MB done the initial single beep before posting then tripple beeped and wouldn't post. I powered off the rig, 'flicked the PSU switches off and let it still for a few mins. Powered the rig back up again and same result (single beep, tripple beep not posting).
I powered off the rig unplugged GPU 0 and GPU 1 at the MB, swapped them over (gpu 0 to pcie 1x slot gpu 1 to pcie 16x slot) and the rig posted then booted to Windows went into device manager and it was only picking up 5 of the 6 GPU's (not the GPU that was previously GPU 0).

I shut down the rig, unplugged the GPU at the riser and PSU and rebooted (posted and booted to Windows with no issues), I started Claymore (started mining fine) and when I checked HWinfo/GPU-z same result previous clock/voltage settings with higher gpu power usage (120w per card) than usual.

I stopped Claymore, shut down the rig, unplugged the rig at the wall, put GPU's in there original positions, moved the bios switch on the GPU that wasn't being picked up to 'silent mode' and booted the rig up.

It posted and booted into Windows but was running really odd, mouse movements, opening windows etc were slow and sluggish. I then moved the bios switch back to original position then used ATIflash via cmd to 're flash all cards back to original bios, uninstalled driver via DDU and rebooted the rig. Reinstalled blockchain driver, rebooted and mouse movements, opening windows etc were still slow and sluggish.

Used ATIflash via cmd and flashed all GPU'S with bios I had them running on previously (one click Polaris Bios Editor). Applied atikmdag-patcher and rebooted, things were still running slow and sluggish, ran claymore and it started mining with all 6 GPU'S at original config setting, getting the same Mh/s but all the GPU's are still using more power than they usually would (120w per GPU and whole rig 1285w at wall).

Apologies for how long this is but I wanted to give a good idea on what is happening, what I have tried already etc.

Thoughts? Anyone had a similar issue that the have managed to resolve? Thanks in advance to anyone that can help me.

Ps

How do I put this into one of the 'box thing's' so it doesn't take up so much room on the page?

try to lower your Clocks

Quote from: Metroid on March 14, 2018, 02:02:04 AM

Quote from: big al on March 14, 2018, 01:06:55 AM

This is what I've found too with dual mining. 11.3 or 11.4 you have to slow down the cards to get stability but still 4% incorrect shares.

With 11.0 I get slightly slower speeds vs the same card speed but I can turn them up more with stability. I dont have any incorrect shares so far a couple hours in. The effective speed is much higher.

The incorrect shares is due to the speed boost claymore did, claymore increased memory intensity for the boost and now to make it right people need to reduce their memory clock speed.

Confirming this, I was force to lower my clocks as I've seen many incorrect shares