Bitcoin Forum
January 20, 2017, 01:56:57 AM *
News: Latest stable version of Bitcoin Core: 0.13.2  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: « 1 [2]  All
  Print  
Author Topic: More MH/s from Your GPU?  (Read 1371 times)
AssemblY
Full Member
***
Offline Offline

Activity: 182



View Profile
August 13, 2011, 01:19:20 PM
 #21

I realized that many people make a mistake overclicking their cards not properly or setting up guiminers wrong. What I'm about to say was checked on 5870, 5850 and 5830. Every time there was a few % more mh/s when I used those settings.

Try this settings:

1. Core Clock - that's up to You.
2. Memory clock - 340MHz ( not less not more )
3. Extra flags: -v -w256
4. Assign all cards to one core.
5. No cross fire

5870,5850, 5830 seem to work as fast as they can on memory down clocked to 340Mhz - much faster. Anything below or abow is slower.

Examples:

XFX Hd 5870.

Core - 950
Memory - 340
Voltage - stock
Extra flags: -v -w256
CPU - Phenom x2 550 down clocked to 800MHz

GUIMiner - 433-438Mh/s each

Regards

XFX HD 5850
865/300 = 350m/h
865/340 = 352.30m/h

Thx  Wink
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1484877417
Hero Member
*
Offline Offline

Posts: 1484877417

View Profile Personal Message (Offline)

Ignore
1484877417
Reply with quote  #2

1484877417
Report to moderator
1484877417
Hero Member
*
Offline Offline

Posts: 1484877417

View Profile Personal Message (Offline)

Ignore
1484877417
Reply with quote  #2

1484877417
Report to moderator
1484877417
Hero Member
*
Offline Offline

Posts: 1484877417

View Profile Personal Message (Offline)

Ignore
1484877417
Reply with quote  #2

1484877417
Report to moderator
Tomatocage
Legendary
*
Offline Offline

Activity: 1526

brb keeping up with the Kardashians


View Profile
August 13, 2011, 02:17:16 PM
 #22

HD 5850
1020MHz / 355MHz
BFI_INT VECTORS FASTLOOP=FALSE AGGRESSION=11 WORKSIZE=256 -k phatk
418 MH/s

HD 5870
1040MHz / 355MHz
BFI_INT VECTORS FASTLOOP=FALSE AGGRESSION=11 WORKSIZE=256 -k phatk
470-474 MH/s

Done with the Phatk 3% kernel mod, YMMV



THIS SPOT FOR RENT* | GPG ID: 4880D85C | 1% Escrow | 8% IPO/ICO Escrow services Temporarily Closed | Bitcointalk is the ONLY place where I use this name (No Skype/IRC/YIM/AIM/etc) | 13CsmTqGNwvFXb7tD9yFvJcEYCDTB8wQTS | Beware of these SCAM sites! | *Sponsored Link
Pages: « 1 [2]  All
  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!