Topic: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH - page 231. (Read 451266 times)

That could be, I tested 350M, 337.5M, 325M and 312.5M and filled in the in between tables from those.

Nice table, thanks.
I noticed that a couple of my S5 "do not like" 318.25 when modified with much less loud Noctua 3000 PWM fan.
Temp goes paradoxically higher than at 325, so I stick with 325 for now (can't stand the stock fan).
Will try some other fans for overclocking later in the week.

It is better to buy one Corsair Extra PCE-i cable   separately .  My Corsair RM850 works with 4 PCI-E and RM850 comes similarly with only 3 PCI-E cables.

I found a link to ebay  here https://bitcointalksearch.org/topic/extra-pce-i-cables-917835

I see that the pinout information has been provided already so I can tell you that I used a scribe (pin will work too) to push in the locking tab to remove the pin the lifted it a little to lock in again. The locking tab is accessed in the rectangular opening of the connector. If you are uneasy about the change you can always try it out first to a power supply before connecting it to your miner. You will be very happy with these fans once you install them.

Leave Amazon Feedback and send Bitmain a message via Amazon. 

Ditto

I also bought 2 on Amazon but did not get coupons for those.  What is the procedure for obtaining them?  I could really use them as I'm about to order 4 more direct from Bitmain.

No, according to the linked forum post the data sheet is just explaining those two pins badly and so they're 'reversed' from the labels.

Here's some info. for those trying to dial in the right power to Gh/s ratio for the S5 that I've found through testing.  The ratio is pretty linear for every step down in frequency from 350M to 312.5M, it's about 10 watts decrease in power draw and about 20Gh/s reduction.

freq.             (avg.)         (at 230v at the wall)

350M      = 1,150Gh/s  = 590watts  (tested)(default)
343.75M = 1,130Gh/s  = 580watts  (assumed)
337.5M   = 1,110Gh/s  = 570watts  (tested)
331.25M = 1,090Gh/s  = 560watts  (assumed)
325M      = 1,070Gh/s  = 550watts  (tested)
318.25M = 1,050Gh/s  = 540watts  (assumed)
312.5M  =  1,030Gh/s  = 530watts  (tested)

So you can conclude that if you've got a 1,000watt power supply and you want to stay in specs.  that you'll choose 293.75M for 2 S5's (281.25M or 287.5M for 110v) or if you want to keep it to a specific wattage use for $ reasons.

Dogie, I think you have pin 2 & 3 reversed there on the top.

Data sheet for the fan can be found here. Look on page 5 for wiring info:

Pin 1: Positive [12V]
Pin 2: PWM control IN
Pin 3: RPM reporting OUT
Pin 4: Negative

That's going to need rewiring to fit on S5s as normal 4 pin fan headers are:

Pin 1: Negative
Pin 2: Positive [12V]
Pin 3: RPM reporting OUT
Pin 4: PWM control IN

Might be worth sending back.

Correct, will work fine. All Corsair PSUs are single rail apart from the AXi's which are toggle-able single-multi.

You need to convert to 4Pin with PWM small Molex from the pinout on this diagram:
https://farm8.staticflickr.com/7553/16253719491_d9ca7d6e87_z.jpg http://h30499.www3.hp.com/t5/image/serverpage/image-id/38565i2A39104FC80C9401?v=mpbl-1

The link in the overclockers thread (that you gave) has a link to the datasheet (didn't test it), and an explanation of the wiring .... or did I miss something?

Ok I am lost... anyone have any ideas?

I ordered 30 of these... but they have 4 black wires. The connector has no markings... I have no data sheet. I have no clue which goes to the S5 Red White Black Blue. 

http://www.overclock.net/t/922274/delta-fanatics-club/190#post_12978470

Any thoughts?

Strato

Yet it's a bit of a pain, and you're right prices to change really fast.

The big surprise for me was two weeks ago I was a Best Buy, and I needed to buy a 128 GB SDHC memory card.  I pulled out my iPhone, use my Amazon App, Scanned the BarCode, and the price difference was over $100.  ($59 vs $159).

Now what I heard, was that Best Buy was now honoring price matching with Amazon... 

However I come to find out, and this went all the way up to the store manager, that they would not price match the item, and in their fine print there's a loophole that basically says if the price being compared to is part of a discount membership club program (like Costco), their price match policy doesn't apply.

I tried to explain the manager that Amazon prime doesn't give the buyer better prices just free shipping. 

However he was either completely oblivious to how Amazon prime works, or has been told to tell customers that in fact prime membership customers received huge discounts on the products and that if I could show him the same item on Amazon .Com without a Prime logo next to it, that would be the only way they would honor the price.

Very annoying as I needed the card but was at that point so pissed I told them to take a hike.

Brick and Mortar's big box retailers - their days are numbered.

Amazon's drones will be buzzing soon. 

Strato

Hey everyone,

So Bitmain was very cool about issuing me coupons for the 24 AntMiners that I purchased off of Amazon before the price drop.  I haven't decided if I'm going to use them all, or perhaps just a few…  Still need to get a number of our first delivery up and running.

So that said, I may be interested in either trading or selling a bunch of the coupons -the coupons are good through February 4, and our valued at $45.00.  Just a heads up, you can only use one coupon per S5.

Shoot me a private message if there is any interest in working out a deal on some of these.

Cheers! 

Strato

I had an item in cart at Amazon. Price went up before I bought by quite a bit. I chatted with support and they told me to buy it and then they would change the price when I gave them the order number and before it was charged. I did and they changed the price to the lower price right after I placed the order. Just have to make a bit of a fuss if the amount is large enough. The support girl told me that Amazon has dynamic pricing and prices can change literally minute to minute but often hour to hour.

Should work fine as your still using a single rail PSU. 

If that happens and it's a large enough amount to make a fuss - just email support and they will credit the difference. If they don't just order the item again... issue a return for the item you already have, then return the item that comes in (new one) as the old (more expensive one).

I bought an item that dropped $500 between order and 2 day prime delivery.  Did that.

Strato