dogie
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May 15, 2015, 02:27:02 PM |
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Its 18AWG.
not good but thanks for an honest answer. if I buy this with 2 s-5's I will be pushing the wires at freq 375 and higher. Why would it be? S6 @ 375 is no more than 600W pre PSU = 150W per cable strand = perfectly fine on 1 68AWG. On tubes we were doing 250-300W per cable strand on 1 68AWG which was the sensible limit. you somehow went from saying its 18awg to justifying the safety of 16awg wires. If this is made with 18awg, thats not good. It might be fine for an S5, where you occupy all 4 connectors with thier own 18awg wire (and could fit 3xS5 on the 1600W PSU, possibly with a tiny amount of underclocking if required), but for a lot of other hardware (ie: anything that would draw >180w/cable) its dangerous. my rule of thimb is that 18awg can handle a maximum of 150-200W depending on the cable quality. 16awg can handle 250-320W depending on the cable quality. I would much rather see bitmain offer this PSU (or as a secondary option) with 16awg wire for a few dollars more. Fixed, I was talking about 18AWG but wrote 16. As I said before, anyone powering tubes with 18AWG would be doing 300W+ from their cable rails. Look at the Corsair CX750M for example, its 750W rated for 12V yet uses 2x18AWG cable rails for that. Do you think they'd sell something potentially dangerous with 375W per 18AWG cable rail? I've 100%+ed that PSU and while its toasty its certainly within limits.
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LordPaco
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May 15, 2015, 04:03:22 PM |
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Look at the Corsair CX750M for example, its 750W rated for 12V yet uses 2x18AWG cable rails for that. Do you think they'd sell something potentially dangerous with 375W per 18AWG cable rail? I've 100%+ed that PSU and while its toasty its certainly within limits.
That Corsair CX750M is a real hunk o junk. I have 4 dead ones here from over the past year. One wouldn't even push 500watts out of box without shutting down, two popped with shotgun bang and accompanied flames, only the last one died quietly, probably because I wasn't there to hear the screams. They were by far the cheapest most sloppily made pws I ever had in my mining setup. I would laugh at the thought of even including them in my mining toolbox at this time.
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dogie
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May 15, 2015, 04:30:52 PM |
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Look at the Corsair CX750M for example, its 750W rated for 12V yet uses 2x18AWG cable rails for that. Do you think they'd sell something potentially dangerous with 375W per 18AWG cable rail? I've 100%+ed that PSU and while its toasty its certainly within limits.
That Corsair CX750M is a real hunk o junk. I have 4 dead ones here from over the past year. One wouldn't even push 500watts out of box without shutting down, two popped with shotgun bang and accompanied flames, only the last one died quietly, probably because I wasn't there to hear the screams. They were by far the cheapest most sloppily made pws I ever had in my mining setup. I would laugh at the thought of even including them in my mining toolbox at this time. I've been running 3 of them @ 100% for nearly 2 years, no problems here.
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RadekG
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May 15, 2015, 06:58:05 PM |
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This is very good job done BITMAIN!!! It is high power mining PSU with competitive price compared to other 1.6kW PSUs. I do not uderstand stupid comments comparing NEW APW3 with used DPS1200 or other. If someone wish to compare, please compare NEW with NEW, not NEW with USED!
Again, very good job! Please consider to add more qualified suff to QC, your products are not perfect and like to fail soon.
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notlist3d
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May 15, 2015, 10:33:49 PM Last edit: May 16, 2015, 03:21:30 AM by notlist3d |
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I don't know if I would brag about this. That is pretty much overkill. And at around 80 percent is most efficient. *I stand corrected 50 percent is a little bit better. I can still learn I guess . But I still would go for at least 80 percent gold. And would run closer to watt's used and not 1/2. Just would take a lot for that extra few percent to pay off a EVGA 1300.
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dog1965
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May 15, 2015, 11:05:09 PM |
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I don't know if I would brag about this. That is pretty much overkill. And at around 80 percent is most efficient. rule of thumb if your going to run PSU's 24/7 run them at around 50% load max. this has been proven in a lab. If you run them at max load you will get ripple voltage which is an UNCLEAN VOLTAGE with BITMAIN antminers knowing how sensitive they are. Ripple voltage is unclean period don't run them more than 80 percent load if you must. this also has been proven for many years in a lab. Single rail PSU is the way to go. I get hardly any HW errors and I don't have to reset them every week. and that's enough proof for me.
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NotFuzzyWarm
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May 16, 2015, 12:29:31 AM Last edit: May 18, 2015, 03:46:31 PM by NotFuzzyWarm |
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That actually looks pretty good to me and I'm a huge fan of the HP 1200w and the IBM 2kw PSU's. It's fun to putter around but... Modding and soldering cables on the HP's for running 3 s3's or using the breakouts and cables from http://gekkoscience.com/products/IBM2K_board.html for a IBM 2kw PSU takes a fair bit of time each. The 2kw PSU, breakout and 12 cables total $133 vs $155 for Bitmains - pretty close there already, scale power/price and pretty much dead even. it takes me about 1hr total to twist the 12 PCIe 36" long 16ga cables into nice looking ones followed by twisting them into 6-pairs of cables to look pretty. Then screwing down all the wire lugs onto the terminal block. Once that's done more twisting. This time the 6-pairs into 3 master cables running to the miners. Plus the IBM's do not have fans so gotta do that as well. But, sure looks nice Most of my main Ant colony http://imgur.com/gallery/gvJDH/newWith Bitmain's we get the 8 PCIe needed to very comfortably run 2 s5's even OC'd with 4 spare cables for whatever or can run 3 fully plugged S3's. Also uses the normal C13/14 plug so easy to find cords. A minus is the cables only being 18" long - makes for interesting arrangements.. Query: Does it have local/remote control, status pinouts or can it be tied into n+1 redundant? With the IBM 2kw and 12 cables (again, 36" and 16ga) I comfortably run 3 S5's pulling 1.8kw, no spare PCIe. It also uses the harder to find C19/20 plug. But the breakout provides local/remote control - has a switch for local, has headers for plugging in up to 2 of the needed fans and has local/remote fan speed control as well. Also has scaled current output signal (33mv/Amp) and can be wired as N+1. That said, Bitmain's still looks good enough for me to give 2 a try. No time spent futzing around, just plug in and mine
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sidehack
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Curmudgeonly hardware guy
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May 16, 2015, 01:20:10 AM |
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The stock boards don't have the current measurement anymore; that feature was too expensive to implement in mass (not many people wanted it). Also, the Bitmain PSU is C13/C14 plug and the DPS2K is C19/C20.
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NotFuzzyWarm
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Evil beware: We have waffles!
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May 16, 2015, 01:54:51 AM Last edit: May 16, 2015, 02:35:00 AM by NotFuzzyWarm |
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The stock boards don't have the current measurement anymore; that feature was too expensive to implement in mass (not many people wanted it). Also, the Bitmain PSU is C13/C14 plug and the DPS2K is C19/C20.
Post corrected about the plug, thanks. Might as well add that one source for 240v C19/20 cords is http://www.stayonline.com/detail.aspx?id=38741Bummer about the current signal. It isn't derived inside the PSU and just bought out via the high-density plug?
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shahadil
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May 16, 2015, 07:01:05 AM |
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are there no shipping charges on this?
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philipma1957
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May 16, 2015, 11:56:51 AM |
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are there no shipping charges on this?
looks that way. it is small and lite compared to a miner.
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dogie
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dogiecoin.com
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May 16, 2015, 03:18:26 PM |
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are there no shipping charges on this?
looks that way. it is small and lite compared to a miner. Sorry to disappoint but the bug has now been fixed Shipping charges for all!
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dog1965
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May 16, 2015, 04:48:06 PM |
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are there no shipping charges on this?
looks that way. it is small and lite compared to a miner. Sorry to disappoint but the bug has now been fixed Shipping charges for all! you just love to say that doggie it must be most gratifying for you especially when you get yours free !
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philipma1957
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May 17, 2015, 02:21:10 AM |
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and it is now 155 + 33 = 188 usa
which really is too high but if some one gets it and wants to show it on power ratings please do. I am curious to see if it does 92.0% to 93.8%
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PatMan
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May 17, 2015, 11:52:56 AM |
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With Bitmains previous record with PSU's, I would be very wary of purchasing these potential fire hazards. However, having seen the terrible workmanship in the pics uploaded on the first page, I would now say avoid these PSU's at all costs. Stick to superior quality, proven & cheaper server PSU's off ebay. These things could, quite literally, kill you. They should be banned worldwide. Bitmain, what are you playing at
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IYFTech
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May 17, 2015, 12:41:58 PM |
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With Bitmains previous record with PSU's, I would be very wary of purchasing these potential fire hazards. However, having seen the terrible workmanship in the pics uploaded on the first page, I would now say avoid these PSU's at all costs. Stick to superior quality, proven & cheaper server PSU's off ebay. These things could, quite literally, kill you. They should be banned worldwide. Bitmain, what are you playing at PatMan dude, bang on! Let's just look at those pics again: I mean, really!? These things just scream one thing: DANGER!! I can't stress enough how much miners should avoid purchasing these if they value their homes, possesions & lives. Absolutely Shocking.
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dog1965
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May 17, 2015, 04:59:45 PM |
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With Bitmains previous record with PSU's, I would be very wary of purchasing these potential fire hazards. However, having seen the terrible workmanship in the pics uploaded on the first page, I would now say avoid these PSU's at all costs. Stick to superior quality, proven & cheaper server PSU's off ebay. These things could, quite literally, kill you. They should be banned worldwide. Bitmain, what are you playing at PatMan dude, bang on! Let's just look at those pics again: I mean, really!? These things just scream one thing: DANGER!! I can't stress enough how much miners should avoid purchasing these if they value their homes, possesions & lives. Absolutely Shocking. GREAT BITMAIN IS NOW IN THE BUISNESS OF KILLING PEOPLE. way to go bitmain I would never buy one after looking at those pics. If you paid VAT to dogie for items you should read this thread: https://bitcointalk.org/index.php?topic=1018906.0 not my link just pointing something out. Dogie I always knew you were a scammer one that works for bitmain to. Dogie you sure you didn't build that supply for bitmain.
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philipma1957
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May 17, 2015, 06:32:46 PM |
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Guys not to defend anyone. Bitmaintech built pretty good
s-1's s-3's s-5's
they don't burn up often.
And while the psu in the photos looks bad on the inside no one else has done any photos of it unboxed then opened.
Frankly I am not interested in buying one to test it for everyone because
it is 188 usd to my house I do not need it. I know I do not want 18 gauge cables.------------biggest reason is this.
I AM CURIOUS does it do 92-93.8%. I could hook a lot of lower power gear to it.
But I am only saying 188 shipped to the USA is high price.
I rather 16 gauge cables .
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PatMan
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May 17, 2015, 07:07:08 PM |
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But I am only saying 188 shipped to the USA is high price.
I rather 16 gauge cables .
Agreed, 18 gauge isn't enough & the price is too high. These reasons alone are enough not to buy one, but the workmanship, quality & history of Bitmain brand PSU's (S4) are even more reason to avoid these. Bitmain have already lost one of their own mining farms to fire, it's no surprise why looking at those pictures, you'd think they had learned their lesson..... As far as PSU's go, you can't risk compromise: quality parts & workmanship win every time, something these don't have. It's just not worth the risk.
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