.....But since then I've made my raspi gekko Rig and using it via an ATX breakout board and voltage converter.
link to breakout board and you have picture of setup? Picture of my setup (in the link below). But now it's an S9 instead of the S7LN. You can just about make out the breakout board at the top on the left (blue lights) . I'll find a link and add it in when I remember where I bought it  https://bitcointalk.org/index.php?topic=7216.7720EDIT:- Found the breakout board. Got it from a local company to me. http://ooznest.co.uk/ATX-Adaptor-Board?search=AtxIt's made by "Staticboards". |
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With my EVGA it just had a 24pin plug with the jumper wire attached. No extra mess. But since then I've made my raspi gekko Rig and using it via an ATX breakout board and voltage converter.
I have the same cable, but it's big and takes up space, My OCD kicks in and I feel all that wire can be replace with a short jumper. I'm also trying to find a wired or wireless relay controller to make this a switchable device, which I can do remotely, preferably from anywhere in the world Sorry I didn't realise you were wanting to get rid of the cable completely. Sounds like a good idea to be honest. Some sort of arduino or raspi could do it couldn't it? |
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You've bought an Antminer and haven't done any research wjatbyou need or how it works?! That's worrying considering this thing could burn your house down if something were to go wrong.
It uses around 1250w. Personally I would get the 1600 psu as it has some "space" power wise so you're not running it 100% like you would if you bought a 1300w PSU.
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With my EVGA it just had a 24pin plug with the jumper wire attached. No extra mess. But since then I've made my raspi gekko Rig and using it via an ATX breakout board and voltage converter.
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From what I remember about the S5 it needs four pcie cables attached to the four plugs on the top. That's it. You don't need to use all the cables on the PSU. You need to use a jumper wire on the 24pin plug to get it to switch on and power up.
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You want a PSU that is capable of running your miner comfortably. So if you miner requires 1000w to run then you want around 1200-1300 PSU.
You NEVER want to get a 1000w PSU for a 1000w Miner. Always allow yourself plenty of space. Most PSU reach peak efficiency (rated efficiency) at around 50-60% load.
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Wow I cannot believe someone is using a CPU connector to power a miner  |
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You're not going to find a replacement in the $10 range with comparable airflow - and even at wholesale pricing I doubt you'll find something comparable for $15 each.
You COULD try using AFB series Deltas instead, but they're not designed for the high back pressure that the S7 (and S9) design puts on a fan and might not flow as much even if they're RATED to do so at zero backpressure.
Tried an AFB on my S9 wasn't good. Ran at half the speed of the QFR. |
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The front was a Delta QFR1212GHE 12v 2.70A and the rear only had the markings "JSL" but no model number or even direction of flow.
A piece of additional info. Even though ive swapped them out for different ones the rear fan is still 120rpm faster than the front. Front 1800rpm - Rear 1920rpm set at 25% speed
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You don't need to add VAT if its within the EU as you are not a business buying them in and selling them to the public. How about a picture of your S9 with a piece of paper with your forum name and date written on showing you actually have what you are selling. Maybe you'll get some interest then  |
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S9 now on sale on Bitmain store front...
...this time no notification on twitter!!! strange behaviour. why they do not spread the news this time? mmmmmmmmmmmmmm.... They probably have a limited quantity. Notice that they also have a single miner for sale... I am with you on the mmmmmm. interestingly, there are no specs so far. i think that these are 14th (b23) that did not quite make it to 14Th. I have a question: i have one S9 that has much higher speed fan on the back than in front. Bitmain says that fan in front is up to 6000rpm, and back one up to 4000rpm, but i have it backwards and that miner is actually running a bit hotter. Does anybody think that it is worth reversing the fans? Miner is in hosting, so i cannot visually inspect the fans. Can someone confirm that front and back fans are actually different (model, appearance, etc)? Or is it possible that bitmain simply connected fans to the wrong connectors, unlikely as it is. thanks. My second hand 11.85th S9 had these fans on before I swapped them both out. Back one would run faster (and whine) than the front. In the picture the left fan is front and right fan was rear:-  Hope this helps some |
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We need more details to be able to help. For starters just plug the S7 in and deal with that one and its problems first.
You should have a green and red LED on the front if the red one is flashing its got a problem (if the beeping didn't already tell you that). You can try and power one hashboard at a time. so unplug two of them and then power on the miner. let it run and see what happens.
If no problems then switch off the miner unplug that board and plug in the next and see what happens. DO this for all three boards and hopefully it will identify a problem with the boards. If it does it for all three boards then it could be fans or controller board or Ethernet cable/connection.
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Ouch, UPS just stung me for over $300 in taxes, duty and "handling charges"  Now I remember why I don't buy miners in the UK anymore. Lucky I have free electric for this or I wouldn't bother.  That's exactly why I haven't bought a new miner from outside the EU. Ridiculous charges from government, then the handling charges on top of that aswell |
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So.....Looks like another scammer here. Not response at all from him. Last warning before being tagged as a scammer and getting negative trust.
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Www.eyeboot.com sell replacement fans. I've just bought two from them for my S9 (to try and get the noise down with matched fans rather than two different ones it came with) and they work great. Not bad on price either. They come from china but delivery was only a few days after an initial communication error.
I thought you were not suppose to do this. From what I have read, the input fan needs to be slower than the output fan due to back pressure. If sound is more important than cooling then having equal fans could reduce noise. Well ive not noticed any problems so far. Ambient temp is 20c, PCB 49-51c, CHIP 80-81c. Been running like this for 3 days now without any issues. |
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Delta QFR1212GHE are the standard replacements. Ive just bought two from www.eyeboot.com (Klintay on this forum) arrived in a few days. Both run well and have good length leads. Ive got one that I bought second hand to try it before I committed to buying a pair of new ones. Trouble is its got a short lead so needs an extension and ive cut away some plastic as it came fitted with a 6pin plug (its only got 4 wires as required so cut the plug down very carefully). Id be happy to let it go for £10 if you wanted it? I can post pictures if you want to see it aswell. |
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BLOCK!!!! Only 73.24% so if I assume there is a trend the next one should be around the 50% mark  |
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Seeing as the manual fan speed control is gone do you think it's now correlated to the freq it's set at? Is the freq adjustable at all? Or is that auto?
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