Bitcoin Forum
October 20, 2017, 06:46:01 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-480 - 31+mh @ 125w at the wall - Modded ROM - HELPING OTHERS  (Read 3726 times)
mettalmag
Hero Member
*****
Offline Offline

Activity: 742


≡v≡


View Profile
October 21, 2016, 10:00:59 PM
 #21

Ati radeon rx 480, they are hashing at 24.8 Mh/s  but dropping down to 14 MH/s for couple seconds and then back to 24.8 MH/s, will the custom ROM help and even make them better ?
1508525161
Hero Member
*
Offline Offline

Posts: 1508525161

View Profile Personal Message (Offline)

Ignore
1508525161
Reply with quote  #2

1508525161
Report to moderator
1508525161
Hero Member
*
Offline Offline

Posts: 1508525161

View Profile Personal Message (Offline)

Ignore
1508525161
Reply with quote  #2

1508525161
Report to moderator
1508525161
Hero Member
*
Offline Offline

Posts: 1508525161

View Profile Personal Message (Offline)

Ignore
1508525161
Reply with quote  #2

1508525161
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1508525161
Hero Member
*
Offline Offline

Posts: 1508525161

View Profile Personal Message (Offline)

Ignore
1508525161
Reply with quote  #2

1508525161
Report to moderator
1508525161
Hero Member
*
Offline Offline

Posts: 1508525161

View Profile Personal Message (Offline)

Ignore
1508525161
Reply with quote  #2

1508525161
Report to moderator
arielbit
Legendary
*
Offline Offline

Activity: 1358


View Profile
October 22, 2016, 02:21:58 AM
 #22

Let me clarify, I will help people learn to do their own ROMs.  I am not looking to do 100 different ROMs, I don't have that kind of time.

As Eliovp has pointed out they aren't the easiest thing to do and take time to do correctly.  If someone wants to help themselves I will help them.
I am willing to learn how to my rigs using Hexeditor method. So far I had
3 full rigs of RX480 8GB ref
1 rigs of HIS IceQ RX480 8GB. Link: http://www.hisdigital.com/un/product2-933.shtml They had same heatsink design as XFX RX480 GTR. But not sure about pcb side.
2 rigs of XFX RX480 8Gb GTR.

All these cards using Samsung memory chip. So I guess they all had same timing right?
So far I manage to using Hex editor, locate the memory timing. I think i can replace the timing. But I dont expert enough to modify the VDDC for these. Willing to learn how to do it.

Thank you for sharing your knowledge to the community.

we have the same his iceq rx 480..i have a couple of those gpus..

i don't know about bios modding, but i'm looking into it... i just know how to flash bios to a  gpu.
hawkfish007
Hero Member
*****
Offline Offline

Activity: 723


View Profile
October 22, 2016, 04:24:57 AM
 #23

Will someone post a rom here eventually to help others?

kilo17
Hero Member
*****
Offline Offline

Activity: 896

aka "whocares"


View Profile
October 22, 2016, 05:06:26 AM
 #24

Will someone post a rom here eventually to help others?

This is not a ROM you just post and flash.  These need to be fairly card specific.  As explained previously I am willing to help others to learn to make these types of ROM's but unfortunately I cannot just sit around and make ROM's for people.  I am willing to help people help themselves. 

Bitcoin Will Only Succeed If The Community That Supports It Gets Support - Support Home Miners & Mining
kilo17
Hero Member
*****
Offline Offline

Activity: 896

aka "whocares"


View Profile
October 22, 2016, 05:12:50 AM
 #25

Looks like some people just think they are better than others, that shit bores me.  I thought I would create a thread and help people with ROM's that are like me, less intelligent than the "almighty" ones here on the forum.

Hey, i never understood why, after i invited you to ethOS (we were chummy then), all i heard is you threw a fit and asked for a refund. (And you started ignoring me) Then while we discuss stuff in another thread, you come and invade my thread and then create your own, insulting/denouncing people publicly. I would ask you stop twisting things and creating drama out of it.

Now, i congratulate you for being willing to take your time to help small users for free, like we have been doing in #ethereumOS for months. It's the support channel for ethereum mining distro, but we spend 99% of our time actually helping people set up their rigs and get the most from their cards, several hours a day, everyday.

I'm probably just wasting my time, trying to patch things up, but i had to try.

Regarding the voltage offset set in BIOS. Small time users can just use wattmontool or a pletoras of tools to make it happen. There is no need to have them risk bricking their cards.

I believe it is only of interest to users whom have a large farm, that can't tweak cards one by one. Using this mod, they will save thousands of dollars (maybe even per month), and you denounce people for asking a little something in return. For example, the last mod i sold, the guy ROI'd from the saving i gave him in 2 weeks.

I guess i'm selfish, but if i'm going to save someone 20k USD per year, i'm going to ask for a BTC or something. If you're willing to help them saving that much money without getting something in return, then i applaud you.

Actually I complemented you on the ROM in your thread and questioned the cost/benefit ratio.  I have no problem with you but it is apparent you are upset.  You took my quote and put yourself in it when it was not directed at you at all.

Secondly, in regards to Ethos and Kotarius, I participated on the channel helping people and told him that I was running more rigs than I paid for and would send him the money.  He said no problem but then later cut me off from accessing my miners and WILL NOT give me access to the 12+ licenses that were paid.  Essentially he stole $360 from me.  At this point it is a moot point.  

I am much happier with AwesomeMiner that allows me to control as many rigs as i want, install other miners not supported and allows me to mine whatever coin I want.  

Bitcoin Will Only Succeed If The Community That Supports It Gets Support - Support Home Miners & Mining
kilo17
Hero Member
*****
Offline Offline

Activity: 896

aka "whocares"


View Profile
October 22, 2016, 05:13:23 AM
 #26

I have been tied up guys but will start posting some info on modding ROMs later tonight.

Bitcoin Will Only Succeed If The Community That Supports It Gets Support - Support Home Miners & Mining
ivanpop
Jr. Member
*
Offline Offline

Activity: 32


View Profile
October 22, 2016, 08:02:20 AM
 #27

Have you tried Gigabyte 480 4gb gaming g1? Can it be moded to do arround 28mh?
kilo17
Hero Member
*****
Offline Offline

Activity: 896

aka "whocares"


View Profile
October 22, 2016, 09:31:59 AM
 #28

Let me clarify, I will help people learn to do their own ROMs.  I am not looking to do 100 different ROMs, I don't have that kind of time.

As Eliovp has pointed out they aren't the easiest thing to do and take time to do correctly.  If someone wants to help themselves I will help them.

If VoltageObjectInfo has an initialization table for the VRM, it can be added very quickly. You can automate most of it.

Probably easy for a programmer of your caliber but unfortunately my programming stopped with Pascal in the '80's Undecided .  I will definitively look into it.  Thanks for the idea.

Bitcoin Will Only Succeed If The Community That Supports It Gets Support - Support Home Miners & Mining
bobben2
Full Member
***
Offline Offline

Activity: 194


View Profile
October 22, 2016, 04:27:15 PM
 #29

All,
If you happen to have the Sapphire RX 470 card you can BIOS mod the core voltage quite easily using a hex editor as described below.
Possibly, this method can be used on other cards, too.

If you mod your BIOS it is at your own risk. I bear no responsibility.

I used HxD to undervolt core of my cards.

I found a recipe on overclock.net on Polaris Bios Editing - http://www.overclock.net/t/1604567/lightbox/post/25523158/id/2873391

Open the ROM BIOS file retrieved from your card in HxD.  Search for string FF 00 01 07 0C 00.
Locate the four bytes just preceeding the above string.   If the first two bytes = 8D 00 then the next two bytes is the VDDC.
Say you want a -75mV undervolt.  Then store the value F4 FF in the two bytes.  The actual value is FFF4 hex, which is -12 decimal.   (-12 x 6.25 = -75)
After edit your BIOS should read:   8D 00 F4 FF FF 00 01 07 0C 00
Save the file and open and save it with Polaris BIOS editor to update the checksum.
Then flash your card.  
After reboot you can verify the lowered voltage using the TPO GPU-Z sofware.
Good luck!

Mining Hobbyist
Eliovp
Legendary
*
Offline Offline

Activity: 956

Huh?


View Profile
October 22, 2016, 09:31:36 PM
 #30

All,
If you happen to have the Sapphire RX 470 card you can BIOS mod the core voltage quite easily using a hex editor as described below.
Possibly, this method can be used on other cards, too.

If you mod your BIOS it is at your own risk. I bear no responsibility.

I used HxD to undervolt core of my cards.

I found a recipe on overclock.net on Polaris Bios Editing - http://www.overclock.net/t/1604567/lightbox/post/25523158/id/2873391

Open the ROM BIOS file retrieved from your card in HxD.  Search for string FF 00 01 07 0C 00.
Locate the four bytes just preceeding the above string.   If the first two bytes = 8D 00 then the next two bytes is the VDDC.
Say you want a -75mV undervolt.  Then store the value F4 FF in the two bytes.  The actual value is FFF4 hex, which is -12 decimal.   (-12 x 6.25 = -75)
After edit your BIOS should read:   8D 00 F4 FF FF 00 01 07 0C 00
Save the file and open and save it with Polaris BIOS editor to update the checksum.
Then flash your card.  
After reboot you can verify the lowered voltage using the TPO GPU-Z sofware.
Good luck!

Only on Sapphire Nitro models.

It's possible on every other model, but you'll have to add those offsets yourself  Wink
Which is perfectly possible Smiley

kilo17
Hero Member
*****
Offline Offline

Activity: 896

aka "whocares"


View Profile
October 23, 2016, 02:33:30 AM
 #31

All,
If you happen to have the Sapphire RX 470 card you can BIOS mod the core voltage quite easily using a hex editor as described below.
Possibly, this method can be used on other cards, too.

If you mod your BIOS it is at your own risk. I bear no responsibility.

I used HxD to undervolt core of my cards.

I found a recipe on overclock.net on Polaris Bios Editing - http://www.overclock.net/t/1604567/lightbox/post/25523158/id/2873391

Open the ROM BIOS file retrieved from your card in HxD.  Search for string FF 00 01 07 0C 00.
Locate the four bytes just preceeding the above string.   If the first two bytes = 8D 00 then the next two bytes is the VDDC.
Say you want a -75mV undervolt.  Then store the value F4 FF in the two bytes.  The actual value is FFF4 hex, which is -12 decimal.   (-12 x 6.25 = -75)
After edit your BIOS should read:   8D 00 F4 FF FF 00 01 07 0C 00
Save the file and open and save it with Polaris BIOS editor to update the checksum.
Then flash your card.  
After reboot you can verify the lowered voltage using the TPO GPU-Z sofware.
Good luck!

Only on Sapphire Nitro models.

It's possible on every other model, but you'll have to add those offsets yourself  Wink
Which is perfectly possible Smiley

Please if anyone wants to follow the instructions given by bobben2 please do only on Nitro's as it will cause problems on other cards.  Eliovp is spot on and knows what he is talking about.

Bitcoin Will Only Succeed If The Community That Supports It Gets Support - Support Home Miners & Mining
kilo17
Hero Member
*****
Offline Offline

Activity: 896

aka "whocares"


View Profile
October 23, 2016, 02:59:17 AM
 #32

Thread closed to start a new thread.

Bitcoin Will Only Succeed If The Community That Supports It Gets Support - Support Home Miners & Mining
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!