hymperion (OP)
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September 07, 2022, 10:34:59 AM |
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Hello everyone, I bought the asic in question (SPX36) used a month ago, as soon as it arrived I try it and immediately after 20 minutes it smelled of burning and taking it apart I noticed that the power supply had turned black on the connection plate and was also advancing on the plate itself of the asic, this SPX36 was equipped with 2 1900w power supplies. The seller in agreement decides to send me another one and this one equipped with 2 2000w power supplies which initially worked but after 3 days it had the same problem but fortunately the plate was not damaged but only the power supply is faulty apparently. My doubt is that the power supplies are not the original ones and for too much effort they end up burning out. Are there 2200w power supplies or is it possible to put 2 1200w power supplies in series with special plates so as not to have problems? Thank you.
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FP91G
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September 07, 2022, 11:11:24 AM |
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Did you find the cause of the breakdown? Even if your power supplies are original, they may be after poor-quality repairs. Transistors overheat and cause damage. Will the seller refund you this time or blame you for the breakdown? Maybe buy more proven ASICs?
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JayDDee
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September 07, 2022, 02:47:28 PM |
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You'll need more that that if it's rated for 4400W. At 80% load you'll need 5500W.
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hymperion (OP)
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September 07, 2022, 05:21:04 PM |
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Did you find the cause of the breakdown? Even if your power supplies are original, they may be after poor-quality repairs. Transistors overheat and cause damage. Will the seller refund you this time or blame you for the breakdown? Maybe buy more proven ASICs?
currently i have no idea, i opened a refund request on ebay since i bought it there. If they give me my money back I will probably buy another brand ASIC. The problem always starts from the PSU, probably they are not the originals since in the 2 asic I found power supplies of different brands. You'll need more that that if it's rated for 4400W. At 80% load you'll need 5500W.
probably yes but I don't know with which power supplies these come out of the factory ...
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JayDDee
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September 07, 2022, 06:54:58 PM |
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You'll need more that that if it's rated for 4400W. At 80% load you'll need 5500W.
probably yes but I don't know with which power supplies these come out of the factory ... Forget the factory PSUs, they're probably crap. Get good quality server PSUs, others can give specific recommendations.
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adaseb
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September 08, 2022, 03:50:20 AM |
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I didn't think anyone actually bought this ASIC. Back in the day Any SP ASIC was very well built. It was so well built that they ran outta business because they couldn't compete with Bitmain.
Most likely they use regular server PSUs. Just open it up and get something similar in power rating. I doubt they are custom PSUs. Its just 2 240V PSU installed together. However since you bought on eBay just send it back instead of dealing with this.
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hymperion (OP)
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September 08, 2022, 07:43:05 AM |
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I bought it because actually the price was good and the ROI was not bad at all, more than repairing it too I hope to be able to be refunded as I do not want to continually have problems other than risking to catch fire. I just wanted to hear someone more experienced than me who maybe knew how to solve this discomfort.
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FP91G
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September 08, 2022, 11:31:30 AM |
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To solve the problem, you need to measure the power consumption from the wall and find a master who will tell you the reason for the failure of the power supply. When an ASIC has a very fast payback, problems often arise. Maybe your salesperson is also not an experienced technician. To make money on this, you need to find the reason and understand whether it will be profitable for you to eliminate it or not.
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hymperion (OP)
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September 08, 2022, 01:07:28 PM |
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before mounting it I measured consumption and it absorbs about 2100w on the wall for each psu
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FP91G
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September 09, 2022, 04:10:58 PM |
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before mounting it I measured consumption and it absorbs about 2100w on the wall for each psu
This is already minimal information, if your power supply is 2000 watts, then when consuming 2100 watts from the wall, it means that its efficiency is 95% at maximum load or 90% efficiency if the power supply is 1900 watts. Now you need to look at the technical characteristics of each power supply and read technical forums about them. The main question that I would be looking for an answer to is the ability of this power supply to work stably at maximum load.
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adaseb
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September 10, 2022, 03:45:23 AM |
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According to https://www.spondoolies-tech.com/products/spx36?variant=12551612104776It comes with a 4400 Watt PSU, so most likely its within the specs of the PSU. Server PSUs can be run at a load close to its rating for long periods of time. They are heavy duty and are built much better than a regular ATX PSU.
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hymperion (OP)
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September 10, 2022, 07:13:31 AM |
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I think any solution at the moment would be quite expensive ...
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FP91G
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September 10, 2022, 03:23:27 PM |
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Server blocks are designed for heavy loads and work in data centers for 10 years, and then companies sell these power blocks to miners. This is because they operate under ideal conditions for cooling and stable voltage. I can’t even imagine how they would work in my village, where the voltage is unstable.
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JayDDee
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September 10, 2022, 04:33:18 PM |
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Server blocks are designed for heavy loads and work in data centers for 10 years, and then companies sell these power blocks to miners. This is because they operate under ideal conditions for cooling and stable voltage. I can’t even imagine how they would work in my village, where the voltage is unstable.
Same with ASIC miners, which makes them a good fit. If the environment is not suitable for server PSUs it's not suitable for ASIC miners either.
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hymperion (OP)
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September 12, 2022, 08:42:44 AM |
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i have 3 bitmain and 1 innosilicon ASICs and i have no such problems. The tension is also quite stable.
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adaseb
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September 12, 2022, 08:04:33 PM |
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i have 3 bitmain and 1 innosilicon ASICs and i have no such problems. The tension is also quite stable.
If you are not using those bitmain ASICs you can just use those power supplies in your SPX36. They will most likely have the same harness or similar. Most server chassis PSU are very similar. However its up to you whether you are technical enough to open up the unit to do so. I would rather just send it back to the seller. They will have to pay for return shipping since they sent it broken to you.
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hymperion (OP)
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September 12, 2022, 09:25:55 PM |
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the seller doesn't want any refunds, he said at most he'll send me another power supply. bitmain power supplies are different, they have 6 pin connections
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adaseb
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September 12, 2022, 10:33:56 PM |
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the seller doesn't want any refunds, he said at most he'll send me another power supply. bitmain power supplies are different, they have 6 pin connections
On the eBay listing what did it say under "Condition"? Did it say "Used" or did it say something like "For Parts only"? If it said used, then you can open up a claim and get a refund since it wasn't disclosed on their description. Trust me, I had to pay to accept Returns, pay for the shipping for items that were in perfect working order and the buyer basically just changed his mind.
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hymperion (OP)
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September 13, 2022, 06:12:45 AM |
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and apparently no! I asked ebay to intervene and they said they can't do anything about it as the item worked for 3 days! Ridiculous. the condition of the item was used and in the description it said refurbished.
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FP91G
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September 14, 2022, 12:09:49 PM |
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and apparently no! I asked ebay to intervene and they said they can't do anything about it as the item worked for 3 days! Ridiculous. the condition of the item was used and in the description it said refurbished.
If the product was after repair, then you have 2 options. Sell your ASIC as non-working or for spare parts, or if the ASIC is not in repair, but only has problems with the power supply, then order this power supply from another seller. But perhaps the word refurbished was added to avoid problems later in open disputes.
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