Bitcoin Forum
December 14, 2017, 11:47:25 PM *
News: Latest stable version of Bitcoin Core: 0.15.1  [Torrent].
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: [WTS] Sapphire 7970 Vapor-X OC 11197-03-40G - voltage unlocked - EUROPE BASED  (Read 843 times)
Boxman90
Hero Member
*****
Offline Offline

Activity: 518


View Profile
September 03, 2013, 08:31:46 AM
 #1

I'm selling 11 Sapphire 7970 Vapor-X OC videocards.

Mining is no longer profitable with the ridiculous (~0.28$/kwh) where I live.

I'm based in Europe, but will ship worldwide. Shipping costs are for the customer.

The price is 2.9 BTC per card.

LTC: LKKy4eDWyVtSrQAJy7Qmmz61RaFY91D9yC   BTC: 18fzdnCkuUNthCD8hM36UBGopFa9ij78gG
1513295245
Hero Member
*
Offline Offline

Posts: 1513295245

View Profile Personal Message (Offline)

Ignore
1513295245
Reply with quote  #2

1513295245
Report to moderator
1513295245
Hero Member
*
Offline Offline

Posts: 1513295245

View Profile Personal Message (Offline)

Ignore
1513295245
Reply with quote  #2

1513295245
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
mrkubanftw
Sr. Member
****
Offline Offline

Activity: 377



View Profile WWW
September 03, 2013, 03:13:13 PM
 #2

That's quite a bit for that card.. but now that im looking at retail it is around 400USD. Any particular reason these are worth so much? Over other OEM's i guess?
bronan
Hero Member
*****
Offline Offline

Activity: 758


Lazy Lurker Reads Alot


View Profile WWW
September 03, 2013, 03:43:35 PM
 #3

Imma not selling my precious Wink
But they are quality product they stay much cooler then other simple designs often even beat 3 fanned model cards cooled ones
Possible very high overclocks also because of the prefect cooling.
But i allready know for a fact that really kills your cards in time much quicker then if kept at certain speeds
Mine runs perfects at 1050 core however i ran them for many months at 1190 however i lost one now because the could not cope the heat from mining constant for almost 2 years.
I mine full at scrypt at around 68 C and that is not even with using fan setting at 55% it fully runs on auto fan speed.
Ofcourse on hot days when its 34 to 36 C it breaks the 75c mark but hell these cards can handle it with ease  
 
As you ofcourse know if you put more into a case they heat each other which will effect the performance
mrkubanftw
Sr. Member
****
Offline Offline

Activity: 377



View Profile WWW
September 03, 2013, 03:53:26 PM
 #4

Yeah okay that makes sense. My sapphire 7950 dual-x would run at a hot 78 depending on the day when it was oc'ed and at 100% fan load. Annoying is what that was lol. So i would say its worth it! I'm shopping around right now but ill let you know if im interested within the next day or two.
bronan
Hero Member
*****
Offline Offline

Activity: 758


Lazy Lurker Reads Alot


View Profile WWW
September 03, 2013, 05:11:20 PM
 #5

The dual-x are also pretty good cards but just a little less then the vapor-x ones
That technics has proven to be working well, i was sceptical when i bought them
But when i bought several other brands second hand i found the vapor-x ones allways be just a tad bit better, cooler and more stable.
Ofcourse when i put 4 in my cramped i7-3770 system with the case closed it became sometimes steaming hot.
Especially when i was gaming from morning till early morning Wink
Ofcourse maxing out every bit i could squeeze out of all my games, and trying out all demo's from games i was curious about.
Now by this is am just saying they are good cards ofcourse i do not know how much they where abused by this user xD
Boxman90
Hero Member
*****
Offline Offline

Activity: 518


View Profile
September 03, 2013, 10:20:08 PM
 #6

In terms of hashrate, they all were capable of reaching 750kh/s with overclock, no overvoltage.

They ran 24/7 for a few months at ~720kh/s. They never ran at higher than stock voltage. Temperatures were kept <70C, but duging high summer (40C outside), some did reach 79 C.

I can guarantee the 720kh/s hashrate for being 24/7 stable when cooled properly (2 120mm fans per 4 cards).

LTC: LKKy4eDWyVtSrQAJy7Qmmz61RaFY91D9yC   BTC: 18fzdnCkuUNthCD8hM36UBGopFa9ij78gG
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!