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Topic: RX470 4GB Custom rom - page 3. (Read 10145 times)

bobben2
full member
Activity: 279
Merit: 104
Re: RX470 4GB Custom rom
August 19, 2016, 03:44:07 PM
#11
Quote from: brizio71 on August 18, 2016, 05:19:37 PM
Hello,
is it possible make a custom rom with RX470 4GB an done for RX480 8GB ?
thx

I made a custom rom for my Sapphire RX470 8Gb card.  I used the Polaris Bios editor tool.
It should work for any RX4.. card.
I changed the memory timings for the 2000 MHz strap to equal that of the next lower strap - and voila
the hash rate went from 23Mh/s to 25Mh/s just by that change alone.  I also lowered the core frequency
from 1260 to 1150 to save some power.   I will look at lowering voltages next ..
But the custom rom development is a pain here - Custom roms are done in Windows, then I have to reboot
into Linux to run miner tests...
brizio71
sr. member
Activity: 456
Merit: 250
Blockchain Just Entered The Real World
Re: RX470 4GB Custom rom
August 19, 2016, 09:32:42 AM
#10
Quote from: Tmdz on August 19, 2016, 08:43:45 AM
The best thing to do would be practice flash some older cards that have a dual bios switch.

Look up some guides on atiflash, boot into dos and run through the different commands. flash, backup etc and then you should be good to flash the newer cards without screwing them up

If you make a mistake then you can just flick the switch and youll be fine, re-read the guilds and try again.


I did with all my HD7970 cards, I would like to know the software to use for make a new bios and I have read in other post the signature problem, can I use the same procedure describe for RX480 card ?
Tmdz
hero member
Activity: 1008
Merit: 1000
Re: RX470 4GB Custom rom
August 19, 2016, 08:43:45 AM
#9
The best thing to do would be practice flash some older cards that have a dual bios switch.

Look up some guides on atiflash, boot into dos and run through the different commands. flash, backup etc and then you should be good to flash the newer cards without screwing them up

If you make a mistake then you can just flick the switch and youll be fine, re-read the guilds and try again.
brizio71
sr. member
Activity: 456
Merit: 250
Blockchain Just Entered The Real World
Re: RX470 4GB Custom rom
August 19, 2016, 07:27:01 AM
#8
Quote from: ?? on ??
Quote from: brizio71 on August 18, 2016, 05:19:37 PM
Hello,
is it possible make a custom rom with RX470 4GB an done for RX480 8GB ?
thx

Yes - mine is hashing ~27MH/s.

Can you please write a step-by-step procedure to have a custom rom ?

thx
Mzie
full member
Activity: 140
Merit: 100
Re: RX470 4GB Custom rom
August 19, 2016, 03:48:14 AM
#7
Quote from: dumada on August 19, 2016, 02:55:42 AM
Quote from: Eliovp on August 19, 2016, 02:49:57 AM
MM kind of misstyped there. "if there's one available"..

Just curious what i can do with those Smiley

If you can get one to overclock the memory to 2200 MHz and tight timing, then the 470 will be as good as the 480.

 how much power does it consume on overclock?
Eliovp
legendary
Activity: 1050
Merit: 1294
Huh?
Re: RX470 4GB Custom rom
August 19, 2016, 03:05:36 AM
#6
Quote from: dumada on August 19, 2016, 02:55:42 AM
Quote from: Eliovp on August 19, 2016, 02:49:57 AM
MM kind of misstyped there. "if there's one available"..

Just curious what i can do with those Smiley

If you can get one to overclock the memory to 2200 MHz and tight timing, then the 470 will be as good as the 480.

Who knows  Wink
dumada
full member
Activity: 154
Merit: 100
Re: RX470 4GB Custom rom
August 19, 2016, 02:55:42 AM
#5
Quote from: Eliovp on August 19, 2016, 02:49:57 AM
MM kind of misstyped there. "if there's one available"..

Just curious what i can do with those Smiley

If you can get one to overclock the memory to 2200 MHz and tight timing, then the 470 will be as good as the 480.
Eliovp
legendary
Activity: 1050
Merit: 1294
Huh?
Re: RX470 4GB Custom rom
August 19, 2016, 02:49:57 AM
#4
MM kind of misstyped there. "if there's one available"..

Just curious what i can do with those Smiley
adaseb
legendary
Activity: 3808
Merit: 1723
Re: RX470 4GB Custom rom
August 19, 2016, 02:36:13 AM
#3
Quote from: Eliovp on August 19, 2016, 02:28:45 AM
I'll see to go buy a 470 this weekend and get one available Smiley

Nice thanks!
Eliovp
legendary
Activity: 1050
Merit: 1294
Huh?
Re: RX470 4GB Custom rom
August 19, 2016, 02:28:45 AM
#2
I'll see to go buy a 470 this weekend and getif there's one available Smiley
brizio71
sr. member
Activity: 456
Merit: 250
Blockchain Just Entered The Real World
Re: RX470 4GB Custom rom
August 18, 2016, 05:19:37 PM
#1
Hello,
is it possible make a custom rom with RX470 4GB an done for RX480 8GB ?
thx
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