Guys what is SRR option?
also when i set minimum temp=25 or lower, it wont go lower than 30
(using v0019 with updating)
SRR = Simple Rig Resetter
it's a little board that connects to your power/reset pins on the motherboard, it then listens for heartbeats from specific rigs, when the heartbeat stops, it means the rig froze, it hard re-sets the specific rig.
https://simplemining.net/download/SRR/PDF/SRR-manual-2017-02-10.pdfI've been using one for a few months, saved me lots of time at the beginning.
Does Linux ever hard freeze?
Been using ubuntu since 2006,
Got lucky and have never experienced it.
I'm running my own 176 cards and hosting another 388 for friends and family and turning this into a hosting business.
After trying basically all the setups possible (with 6,7,8,9, 13 cards) i've settled on 3 cards per rig. Never looking back.
If you're using second hand HP Compaq DC7800 or DC7900 (you get it for 40 usd in my country with 4 G RAM, 3 pciex slots) and a dual core duo CPU you get the vPro awesomeness of full remote power on and off and Intel AMT out of band remote management included. Nobody can't beat that. Upgrade the firmware on the motherboards and BAM! you have a remote KVM built in. You can see your screen and do whatever you want from anywhere in the world.
If i am running 1080 cards and above, i buy a 750 W server PSU for another 50 USD and i can have a full rig up and running with the total cost of 90 USD per rig. If i am running 1060 cards, i simply upgrade for 10 usd the PSU in the SFF desktop to a 500 W one...
All the rigs are beautiful, no cabling nightmare, whenever a rig crashes i scripted a full power cycle using a raspberry pi as a watchdog.
SRR's are expensive when you have a lot of rigs.
That's 188 mini rigs if my math is correct, and you have to add cabling/switches/power for all the cabling so 5x48 ports switches can handle that but then you still have a ton of cables (and time to manage it all) and if you go second hand for the switches, one switch dies and brings down 48 rigs, anyway you slice it you need cabling and can have many cards go down depending on the nature of your failure.
Then there is heat.
Of course the above can be great in the right circumstances.
FYI - 1 SRR controls 8 rigs, there should be a daughterboard available eventually to add 32 for a total of 40 rigs for 1 SRR.
I'm very happy with it.