(REWARD) Cannot get mining rig to be stable or provide a good total hashrate - page 2.

Nic, I see from your other posts that you have already adjusted your pagefile size. My first suggestion would be to make sure you are using the 4 pin molex connectors to power your riser cards and NOT the SATA rail. Try to only use one molex rail or wire for each riser card, but two risers on each wire should work. Don't use SATA plugs on the riser cards, they cant supply enough power and will cause all kinds of issues like you're describing such as locks ups and crazy unexplained issues. I found out the hard way that the SATA cables don't carry enough wattage to power the riser cards. The graphics cards can pull as much as 75 watts from the motherboard, but since the GPU's are plugged into the riser cards instead, the riser cards need to supply this power. From what I understand, the SATA cables can only supply around 50-55 watts (depending on your PSU). How I discovered this was that the rig kept crashing when I would begin to mine. Once I dropped the GPU voltage (TDP), the rig did better but still had issues. Once I identified the problem and plugged in the molex connectors instead, the issue went away. I was told that the molex connectors supply up to 135 watts (more or less depending on your PSU), so try to only plug in one or at most two cards on one rail. Also, DO NOT use the SATA to 6 pin adapters supplied with some of the riser cards. You are still only getting the max wattage supplied by the SATA plugs and any extra wiring or plugs only add resistance and reduce power and create more heat. Use as few plugs as possible and don't use excessively long wires for anything. I run my GPU's and risers on separate rails and have no issues at all. I reset my rig every 4 or 5 days just out of caution but haven't had any issues since I learned how to setup my rig properly. My rig seemed a little slower with the risers compared to when the cards were plugged directly into the motherboard, but the open air case allowed me to increase voltage and overclock to achieve higher hash rates than I was seeing with my tower case as well as provided room for more than 3 GPU's that i was limited to in the tower case. I spaced the cards about two inches apart from each other to help with cooling. The 1080ti FTW3 I have happens to vent some hot air out the back, so I ended up moving it to the end of the case so it doesn't blow hot air right onto the 1080 FE cards. This helped with cooling as the 1080 next to the ti originally was running warmer and slower due to getting all the ti's hot exhaust. When the cards were originally too close together, they would slow their hash rate tremendously after a couple minutes of heating up. I was originally running two 1080's and one 1080ti on a single 850 watt PSU with no issues. I now have two PSU's with a dual PSU adapter from Amazon. I run Windows 10 with no issues at all and get hash rates just as high as guys running Linux and other OS's. There is nothing wrong with Windows 10 if your rig is setup correctly. Windows is not the cause of your issues and there is no need to change OS's unless you simply prefer one over the other. If you have issues getting Windows to see all the cards, plug them in one at a time and boot Windows before installing the next card each time so Windows can see each card and install the drivers one at a time.

Topic: (REWARD) Cannot get mining rig to be stable or provide a good total hashrate - page 2. (Read 301 times)