i need silent ones so i can sleep, so replacing the standard ones is a must , thanks for telling me

Just FYI for those first timers that are setting up ANTs with muli-rail PSUs...  Try to find out how the rails are wired!

• For example I have a 2 rail PSU that one rail is dedicated to all molex/PCI-E/SATA, the other is to the mobo.  
• I have a 4 rail PSU that has one rail to mobo, one to PCI-E, one to Molex/SATA, and another PCI-E
• I have another 2 rail PSU where molex and PCI-E are on different rails.

With the newest ANTs I do like the included connector as I was able to re-purpose the 6pin PCI-E to connector be compatible with the 8-pin mobo connector as long as you change the +/- polarity when plugged into the blade (NOTE YOU WILL FRY THE ANT IF YOU GET +/- backwards, PAY ATTENTION!)  That allowed me to use a relatively weak 600W dual rail supply easily - one rail has mobo 8-pin and the other rail has PCI-E.

What I think most people don't realize is CHECK THE FRIGGIN OUTPUTS WITH A VOLTMETER UNDER LOAD!

If the 12V rail is dropping to something like 11.2V under load, you're gonna have a bad time!  I have a Corsair CX500 that drops to 11.6V under 435W load of an OC'd ANT, and thats as low of a 12V rail as I can stand... but what do you guys think?

How do you know how the rails are wired do you ask?  Some of the manufacturers will show you right in the specs.  Many don't though.  Power up the PSU and check different connectors and note each lead with a digital multimeter.  Then plug in one ANT blade (while powered off, then power on) and re-run the tests.  The rail with load will most likely drop .1V or so, and it should become obvious.  If the PSU has two rails, but both PCI-E connectors show a drop then most likely you are only using half the PSU's power by default.  Do my mobo connector trick (or molex, or whatever connector is on a different rail!) and life is good!

I did some further troubleshooting today and disconnected the fully working blade and made the faulty one primary as sushi suggested and the same thing happens. I tried a different power supply - that did not help either. I did not test the voltage as I was a bit chicken on that front. To test that the unit has to be on I presume so I was worried that I'd short circuit something and end up frying the other working module as well or the control board. I noticed some oily residue on the back of the board (where the chips are) so I cleaned that up but that clearly had no bearing on the problem. As far as the heatsink it seems like it's pretty tightly held on. I saw no obvious assembly issues or broken capacitors or anything such as that.

So I think I will just RMA it and be done with it. Sushi gave me an RMA address that is located in USA so no shipping to China! Yay! Once I get approval from sushi it's off to UPS or FedEX I go.

I am just thankful this is the only dead blade out of all the units that I ordered.

You want to replace the main fan with a silent one? I'd be careful cause most silent fans simply cannot push the CFM rate required to properly cool the miner. I intend to leave the main PWM controlled fan on and put a more standard PC case fan at the back sucking air. I'd say 80 CFM should be enough to give the main fan a little bit of help.

In case anyone wants to know, this is the stock fan. Made by NMB:



Uploaded with ImageShack.us

Has anyone update the firmware on an Ant yet especially from 29/11/13 to 12/12/13 ?

Any benefit?

I think I got my fans from a retailer in Canada.  This was about 9 years ago though.  These SD fans are unkillable.  Mine have ran nonstop cooling something since I have

Had them.  First thing they moved air across was a Pentium 4 overclocked.

Offering a Bounty to get my 3 AntMiners up and running.

I need someone to help me setup my 3 AntMiners. They hang at Miner Configuration screen when you hit save&apply.
A few days ago Sushi via teamviewer disabled something inside cgminer to get one Antminer running. Have 3 other units I need to get running.

Send me a PM if you're interested.

My Ants are mining very happily, but because of heat concerns, I decided to move them into another room and run them off of WiFi.  They seem to be mining and are visible when I check the "Connected Devices" on my router, but I can't remote into them (via the web interface or ssh), unless I connect them via ethernet.

I read through all these pages, and it seems that a few people are having the same problem that I am, but I never saw it addressed or solved.  There was some suggestion that maybe we can't remote into them over WiFi because of some setting in the Ants Firewall, but I'm not seeing anything that would likely be causing this.  I was just wondering if anyone has this problem or if they came to a solution.  Thanks!

I think mine are two bearing.  I bought 10 at the same time for about $5 each off the bay.  Not one has given any trouble at all.

These are the fans I have.

http://www.ebay.com/itm/NEW-lot-4-Sanyo-Denki-San-Ace-12-Volt-DC-fan-109R-H-102-CFM-JAPAN-120mm-PC-READY-/130849558955

Nice. Apparently these have a built in temp sensor that auto adjusts the fan's speed.