Bitcoin Forum
October 23, 2017, 08:40:59 AM *
News: Latest stable version of Bitcoin Core: 0.15.0.1  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: « 1 [2]  All
  Print  
Author Topic: 6950 Worth it for Mining?  (Read 2851 times)
PcChip
Sr. Member
****
Offline Offline

Activity: 402



View Profile
June 11, 2011, 06:18:52 AM
 #21

the 8800GT is good for about 20 mh/s.

With puddinpop's rpcminer-cuda.exe I was getting 24, and with phoenix miner I was getting 30-31

Legacy signature from 2011: 
All rates with Phoenix 1.50 / PhatK
5850 - 400 MH/s  |  5850 - 355 MH/s | 5830 - 310 MH/s  |  GTX570 - 115 MH/s | 5770 - 210 MH/s | 5770 - 200 MH/s
1508748059
Hero Member
*
Offline Offline

Posts: 1508748059

View Profile Personal Message (Offline)

Ignore
1508748059
Reply with quote  #2

1508748059
Report to moderator
1508748059
Hero Member
*
Offline Offline

Posts: 1508748059

View Profile Personal Message (Offline)

Ignore
1508748059
Reply with quote  #2

1508748059
Report to moderator
"In a nutshell, the network works like a distributed timestamp server, stamping the first transaction to spend a coin. It takes advantage of the nature of information being easy to spread but hard to stifle." -- Satoshi
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1508748059
Hero Member
*
Offline Offline

Posts: 1508748059

View Profile Personal Message (Offline)

Ignore
1508748059
Reply with quote  #2

1508748059
Report to moderator
1508748059
Hero Member
*
Offline Offline

Posts: 1508748059

View Profile Personal Message (Offline)

Ignore
1508748059
Reply with quote  #2

1508748059
Report to moderator
acfrazier
Newbie
*
Offline Offline

Activity: 1


View Profile
June 11, 2011, 06:25:00 AM
 #22

I thought the shaders can be unlocked on non-reference 6950's, and it can be overclocked just OK - as with other cards.

Are you saying this is not the case? 

The only ones that are guaranteed not to unlock are the Sapphire non-ref with the 1 large fan in the center.  The other non-ref are hit and miss.  I have personally unlocked the shaders on this card http://www.newegg.com/Product/Product.aspx?Item=N82E16814150523

Anybody who claims it doesn't work on anything except reference design cards is misinformed.

How'd you manage to do that? Even after atiflash -unlockrom <deviceid> I still get "Cannot erase ROM" and it won't flash. Am I doing it wrong? Using just a modified version of what is on the card already. Perhaps it's my modification that's borked.
fcmatt
Legendary
*
Offline Offline

Activity: 1162



View Profile
June 11, 2011, 06:32:53 AM
 #23

the 8800GT is good for about 20 mh/s.

With puddinpop's rpcminer-cuda.exe I was getting 24, and with phoenix miner I was getting 30-31

you are correct. i misspoke and currently guiminer shows 27 mh/s. the number i was recalling was
my attempt at using cuda which i thought would perform better and that was just not the case.

i really have to wonder if i should bother even using the 8800GT at home anymore except for brief
testing periods. Probably a waste of electricity.

██
█║█
║║║
║║║
█║█
██
'BTC MULTI-WALLET SOON'
▬▬▬▬ Download WHITEPAPER ▬▬▬▬

                    ▄██▄
                  ▄██████▄
                ▄██████████
              ▄██████████▀   ▄▄
            ▄██████████▀   ▄████▄
          ▄██████████▀    ████████▄
         ██████████▀      ▀████████
         ▀███████▀   ▄███▄  ▀████▀   ▄█▄
    ▄███▄  ▀███▀   ▄███████▄  ▀▀   ▄█████▄
  ▄███████▄      ▄██████████     ▄█████████
  █████████    ▄██████████▀    ▄██████████▀
   ▀█████▀   ▄██████████▀    ▄██████████▀
     ▀▀▀   ▄██████████▀    ▄██████████▀
          ██████████▀    ▄██████████▀
          ▀███████▀      █████████▀
            ▀███▀   ▄██▄  ▀█████▀
                  ▄██████▄  ▀▀▀
                  █████████
                   ▀█████▀
                     ▀▀▀
e i d o o
██

███▀▀
▐▐▌
▐▌
▐▌
▐▐▌
███▄▄
▀▀███
▐▌▌
▐▌
▐▌
▐▌▌
▄▄███
tito13kfm
Jr. Member
*
Offline Offline

Activity: 42



View Profile
June 11, 2011, 06:37:54 AM
 #24

It looks like XFX got wise and started write protecting the chips.  I won't bore you with the technical details, but at this point, unless you get lucky and are shipped an old card, the only way to unlock the shaders would be tophat flashing or physically bypassing a pin on the bios chip so that it doesn't send the info to denote being write protected.

The data sheet is at http://www.datasheetcatalog.org/datasheet/SGSThomsonMicroelectronics/mXuvyxs.pdf

It shows which pin controls this info.  The only question I would have is, would it revert to unset if that leg is cut/bypassed?  I'm assuming it would return null when queried... probably would fail spectacularly.

PcChip
Sr. Member
****
Offline Offline

Activity: 402



View Profile
June 11, 2011, 06:42:29 AM
 #25

i really have to wonder if i should bother even using the 8800GT at home anymore except for brief
testing periods. Probably a waste of electricity.

I went through the same thing, turned it off when difficulty jumped up around may 25th or so, turned it right the fuck back on when price skyrocketed up so high that I didn't give a shit about electric cost.

Just bought a $150 HD5850 to replace it tonight though, so I don't have any more PCI-E slots in which to place the 8800gt, so it now sits on my desk; its once hot heatsink slowly cooling down, probably never to warm up again.

Legacy signature from 2011: 
All rates with Phoenix 1.50 / PhatK
5850 - 400 MH/s  |  5850 - 355 MH/s | 5830 - 310 MH/s  |  GTX570 - 115 MH/s | 5770 - 210 MH/s | 5770 - 200 MH/s
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!