joseph32
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June 27, 2019, 05:36:06 PM |
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I have a rig with one of these and the cpu fan is hissing like it's about to die. Does anyone know how to replace it? Or should I just put another fan on top when it dies? Anyone has any suggestions or experience. I just don't want to take the rig down without a plan before it is dead.
My fan also died months ago. Just unplug the Cpu fan (just in case it will never spin again) and put a 120mm fan on top. Tape it a bit, so that it cant move and damage any components. Works perfect.
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ronnieb
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July 16, 2019, 01:13:19 AM Last edit: July 28, 2019, 07:07:55 PM by ronnieb |
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My board ended up not working and went ahead with a RMA last month. my order number is #19365. its been almost a month and i havent gotten a response back or anything from octominer yet. i am getting no responses from info@octominer.comIs there any other ways to reach out to these guys? Edit: All has been resolved! thank you Octominer =)
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gigi1234
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July 12, 2020, 06:05:44 AM |
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Hi,
im trying to use this mbo + 8gpus with two 1200W HP server psu-s.
GPUS 1-4 are powerd with first PSU, GPUS 5-8 are powerd with second PSU.
My question is how do I connect 6pin pcie slots to power MBO?(maybe first two 6 pin from first psu, and 3, 4 and 5th 6pin mbo from second psu?)
Tnx for answer.
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CrypR
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Having one bigger psu would be better for reliability purposes since there would be less chance for power abnormalities. If you need to go with the two psus, I would power the board and the first few GPUs with one PSU and the rest of the gpus with the 2nd PSU. I have done this before and it works. If you are using psu's that can be synced like the Antec HCP, hook up the sync cord so they both turn on and off together. Alternatively, you need to make sure to turn on psu 2 then psu 1. When you shutoff, do it in the opposite order: 1 and then 2.
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vapourminer
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what is this "brake pedal" you speak of?
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July 12, 2020, 11:03:56 PM |
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If you need to go with the two psus, I would power the board and the first few GPUs with one PSU and the rest of the gpus with the 2nd PSU. I have done this before and it works. If you are using psu's that can be synced like the Antec HCP, hook up the sync cord so they both turn on and off together. Alternatively, you need to make sure to turn on psu 2 then psu 1. When you shutoff, do it in the opposite order: 1 and then 2.
this is the way i have my onda d8p (a similar mobo), all mobo connections and a 2-3 gpus on one psu, and the remaining gpus 6/8 pin connectors on the 2nd. i used a add2psu (a relay) to control both psus from the motherboard power button. makes it easier as you dont have to worry about the order of psus turning on/off. not strictly needed though.
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CrypR
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July 13, 2020, 12:12:25 AM |
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If you need to go with the two psus, I would power the board and the first few GPUs with one PSU and the rest of the gpus with the 2nd PSU. I have done this before and it works. If you are using psu's that can be synced like the Antec HCP, hook up the sync cord so they both turn on and off together. Alternatively, you need to make sure to turn on psu 2 then psu 1. When you shutoff, do it in the opposite order: 1 and then 2.
this is the way i have my onda d8p (a similar mobo), all mobo connections and a 2-3 gpus on one psu, and the remaining gpus 6/8 pin connectors on the 2nd. i used a add2psu (a relay) to control both psus from the motherboard power button. makes it easier as you dont have to worry about the order of psus turning on/off. not strictly needed though. Sounds like a good working solution. I wasn't quite clear on one part of your description. If your GPUs have two PCIE connectors, both connectors from each GPU should be hooked to the same PSU. I believe you described it this way but I wasn't quite sure.
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vapourminer
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what is this "brake pedal" you speak of?
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July 13, 2020, 12:45:51 PM |
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I wasn't quite clear on one part of your description. If your GPUs have two PCIE connectors, both connectors from each GPU should be hooked to the same PSU. I believe you described it this way but I wasn't quite sure.
yes the GPUs 6/8 pin power connectors must ALWAYS be on the same psu.
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CrypR
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July 13, 2020, 05:15:32 PM |
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My first thought is that you may not need multiple power supplies to run your rig if you are drawing less than 1200 watts, do you have a wattmeter to check? Your breakout boards will also support a 1600w psu which would be another option to stay with one psu if you need less than 1600w. I have several rigs with 6 or even 8 gpus that draw less than 1200w. You may need to tune the settings and under volt to get below the threshold for one psu. I haven't tried the sync function on breakout boards, but I would assume you need to set the switch to sync on both for that function to work. Its not clear to me the benefit of the reboot function as any motherboard will boot itself when the power comes back on if you set it to start on power on in the bios. Since you have two different breakout boards, I would test the sync function before hooking it up to your miner to verify that the pinouts on the boards are compatible.
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gigi1234
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July 14, 2020, 09:45:14 AM |
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my rig draws 1.5/1.6kW so i need two psu-s.
diffrent breakout boards didnt work, so i got in touch with my fellow miner who had same brekaout board and now its fine
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CrypR
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July 14, 2020, 06:25:29 PM |
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gigi1234, glad you got it going. This discussion was productive for me too, I had been looking for breakouts that had more than 12 connectors and you pointed me to a couple, thanks!
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lesuelrs
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October 12, 2020, 01:04:31 AM Last edit: October 12, 2020, 01:28:02 AM by lesuelrs |
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So about 18 months into use, my Octominer B8PLUS motherboard murdered a pair of GPU's and fried the PCIe slots. The case is awesome, but I'm not willing to buy a replacement board. Does anyone have any suggestions for motherboards that would fit the octominer B8PLUS case to transform it into an air cooling monster gaming rig or something useful? It makes me sad whenever I see the case and AX1600i PSU just sitting there.
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