Bitcoin Forum
April 24, 2018, 04:06:40 AM *
News: Latest stable version of Bitcoin Core: 0.16.0  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: Going to switch the BIOS switch to 1 on my 6990  (Read 886 times)
mackminer
Sr. Member
****
Offline Offline

Activity: 345
Merit: 250



View Profile
October 31, 2011, 02:31:05 PM
 #1

Exciting - any advice?

Should I mess around with the voltage on the 0 setting first within cgminer (linuxcoin) ?

1BFf3Whvj118A5akc5fHhfLLwxYduMmq1d
1524542800
Hero Member
*
Offline Offline

Posts: 1524542800

View Profile Personal Message (Offline)

Ignore
1524542800
Reply with quote  #2

1524542800
Report to moderator
1524542800
Hero Member
*
Offline Offline

Posts: 1524542800

View Profile Personal Message (Offline)

Ignore
1524542800
Reply with quote  #2

1524542800
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
DeathAndTaxes
Donator
Legendary
*
Offline Offline

Activity: 1218
Merit: 1000


Gerald Davis


View Profile
October 31, 2011, 02:47:42 PM
 #2

You should already have a kill-a-watt and measured load of your system at the wall. 
Estimate ~20% higher load.  Make sure current PS can handle that.
Flip the switch.  It will bump voltage up 5% from 1.12 to 1.175.  "Stock" clock will be 880 instead of 830.

Fire up your miner.  I would try one card first, and then all the cards in the rig.  Make sure they are solid.  Give it a couple days before trying your other rigs.  You can adjust voltage, memory, clock with software just like any other card.

Remember power doesn't increase linearly.  You may find it more profitable to run at stock.  You will generate less revenue but after electrical (and possibly AC) costs you may come out ahead.

This is why it is important to get solid measurement w/ kill-a-watt on ACTUAL (not guestimated) loads.  You then can compare various voltage,clock settings to get your NET PROFITS which is the only thing that matters.
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!