Bitcoin Forum
October 23, 2017, 07:07:59 PM *
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: RX 470 = 30Mhs ++ GPUz 80W  (Read 2221 times)
deadsix
Sr. Member
****
Offline Offline

Activity: 420



View Profile
October 27, 2016, 06:51:53 AM
 #21

So I dove into Hex editing for the BIOS and its not as complicated as its made out to be. For the layman, I still feel what watttool offers is pleanty. With HEX what you can additionally do is create intermediate memory timing straps and can include an offset in the bios to reduce core volts consumption.
With all the tweking I could do, the BEST I can get my RX 470's is to hash at 25.6 Mh/s while consuming 90W from the wall (GPUZ is like 54W), with a 5 card system at 510W with a lot of bios editing in hex (not polaris). This was a part of my pet 250Mh/s with 1KW at the wall single frame rig/project that I finally achieved yesterday. Its got two 5 card systems in one compact open frame. I will be setting up my 4th such rig to touch 1Gh/s soon.
I have a power ceiling at my place that limits how many rigs I can have running, so most of my research and efforts have been focused into efficiency and not peak performance. Also, the cards run cool, have 0 memory errors, are significantly undervolted and most importantly the risers run cool so i'm insuring a good long run for my hardware.

I think we all know by now that these cards can be pushed pretty hard. But unless you have a proper cooling setup with ducts and air conditioners, and unless you are sure that you are going to dump these cards when ETH goes POS, I would not recommend pushing them to the edge. Find a suitable balance and stick to it, even for perf enthusiasts 27 Mh/s is what you should be happy at with a RX 470 4GB running 24/7. I've made my peace with less.
Bitcoin mining is now a specialized and very risky industry, just like gold mining. Amateur miners are unlikely to make much money, and may even lose money. Bitcoin is much more than just mining, though!
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1508785679
Hero Member
*
Offline Offline

Posts: 1508785679

View Profile Personal Message (Offline)

Ignore
1508785679
Reply with quote  #2

1508785679
Report to moderator
1508785679
Hero Member
*
Offline Offline

Posts: 1508785679

View Profile Personal Message (Offline)

Ignore
1508785679
Reply with quote  #2

1508785679
Report to moderator
toptek
Legendary
*
Offline Offline

Activity: 1064


View Profile
October 27, 2016, 11:30:52 AM
 #22

I'm happy with mine doing 27 MH  from time to time i like to mess around at first but usually after i find the Sweet spot i stay with it. btw the 28 Mh test lasted two days then it crashed so i went back to 27 MH which is what the sweet spot seems to be .



thanks toptek

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!