Bitcoin Forum
June 14, 2024, 04:27:51 PM *
News: Voting for pizza day contest
 
   Home   Help Search Login Register More  
Pages: [1]
  Print  
Author Topic: [WTS] 2x KNC Neptune w/ PSU's  (Read 385 times)
Finksy (OP)
Legendary
*
Offline Offline

Activity: 1022
Merit: 1003



View Profile
March 22, 2016, 06:08:58 PM
 #1

Located in Ontario, Canada.  2x full KNC Neptunes with 2x controllers.  These are compensation batch Neptunes, I typically run them at 1.5-1.8 TH each. They are very finnicky, especially in warm ambient temps and need to be restarted often.

Open to offers, will price out shipping if you give me zip/postal code.  Can include a 2880W PSU setup that I used to power them with 15awg cables (will need an ATX PSU to power controllers) for $160.  Do not have the PCIe y-splitter cables anymore.

IBM 2880W PSU Packages: https://bitcointalk.org/index.php?topic=966135 IBM 4K PSU Breakout Boards & Packages: https://bitcointalk.org/index.php?topic=1308296 
Server PSU-powered GPU rig solutions! https://bitcointalk.org/index.php?topic=1864539  Wallet address: 1GWQYCv22cAikgTgT1zFuAmsJ9fFqq9TXf 
adaseb
Legendary
*
Offline Offline

Activity: 3794
Merit: 1723



View Profile
March 22, 2016, 10:46:44 PM
 #2

When you run them at 1.8Th/s how much power do they consume?
jstew
Sr. Member
****
Offline Offline

Activity: 469
Merit: 500


View Profile
March 23, 2016, 06:58:43 AM
 #3

pm sent
Finksy (OP)
Legendary
*
Offline Offline

Activity: 1022
Merit: 1003



View Profile
March 24, 2016, 06:35:11 PM
 #4

When you run them at 1.8Th/s how much power do they consume?

They don't stabilize very well even at 1.8 where I have them set-up (too warm, these were missing heatsinks on VRM or something around those lines).  Power consumption is around 0.45-0.5W/GHs at current voltage/frequency. 2 of the cubes aren't even hashing right now.

IBM 2880W PSU Packages: https://bitcointalk.org/index.php?topic=966135 IBM 4K PSU Breakout Boards & Packages: https://bitcointalk.org/index.php?topic=1308296 
Server PSU-powered GPU rig solutions! https://bitcointalk.org/index.php?topic=1864539  Wallet address: 1GWQYCv22cAikgTgT1zFuAmsJ9fFqq9TXf 
adaseb
Legendary
*
Offline Offline

Activity: 3794
Merit: 1723



View Profile
March 24, 2016, 07:36:03 PM
 #5

I heard there is a plastic cover between the chip and the heatsink that KNC forgot to remove during assembly, maybe you need to take that part out.

Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!