Topic: Hashrate RX 470 - page 12. (Read 135025 times)

I have 2 and both of them have the red accent LEDs on all the time, and the logo LED is whitish by default but you can change that in software I believe.

Any of you got the MSI 470/480 Gaming ? The ones with the Red Lights? Do you have any where the Red Lights turn off sometimes and turn on.

Referring to this

hmmmmm i'll just leave this here.  whattomine.com

So with one rx 470 with 25 mhs u can mine €0,00001319 in one day? whats even the point of mining it with that if ur just loosing money.

Thanks man! A week ago I found the exact bios for my Sapphire RX 470 4gb ref (Elpida). I got 27.8mh/s after flashing it (with moderate OC)... I've been running it at 26.7-27mh/s to keep the temp low and everything under control (no BSOD, no crashes, no problems). Yesterday I got a BSOD but after playing too much with OC timings (Trixx).

Actually the elpida memory performs better than the Heriox one, i have a few sapphire nitro+ 4gb elpida running at >29Mhash
Here is the ROM: https://bitcointalksearch.org/topic/29mh-rom-for-saphire-rx470-4gb-nitro-oc-elpida-1710085
DO NOT FLASH IT, it will not work for reference cards, but i think that u can take timings from there

Hmm well you should try if that really interests you !  People have been changing the bios in GPU's since way before crypto mining was a thing.  But for an easier way, check out my website, http://www.cryptominingtalk.com/flashing-bios/ , there is a link for the sapphire nitro 470 (with elpida) to a rom file with the 1500 mem straps.  I get about 26.5-27 with it, without really overclocking the memory too much.

Hey everyone! I'm new in the whole cryptocurrency thing, started this week in the whole "mining" stuff (ethereum). I recycled some old parts (mobo, cpu, ram, ssd) and bought 2 Sapphire RX470 4Gb Reference (and a EVGA 700B psu)... From the box both 470's started mining at 22.5 Mh/s (Claymore 4.7, only eth), one has hynix memory and the other has elpida. I followed the normal procedure to "strap" the timings (copying 1500 timing) and now the hynix 470 is mining at 27.5 Mh/s (not bad IMO) and the elpida is stuck at 24.5 Mh, not bad either (after moderate OC with Trixx: 1100 GPU, 1925 mem, 63ºC and 73% fan speed).

My question: Do you think it is worth the risk to mod the elpida 470? I'm not so sure about the whole "hex and checksum" process and I've read about a lot of people crying over their dead gpu's... what should I do?

UPDATE: To answer my own question here.  The latest Crimson drivers 16.12 has turn back on the signature checking.  So stick with 16.9-16.11.  Secondly it appears that over time the amount of overclock on the memory on my RX470 Sapphire 8gb cards has slowed down.  This is causing the system to flat not boot.  I had to experiment with slower and slower memory timings to get it working again.  So still a mild overclock on the memory, but a big decrease from what it was using and working well with.  So my ROM's suddenly were not working.  Retuned a ROM and have it working for the time being.  Have to keep an eye on it to see if I need to tweak it some more.

So if you suddenly start having weird behavior you may need to take another look at your ROM's.  I still have another rig happily running on that old ROM.  So something to do with the cards not able to handle the same speeds as before.
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HELP!  I need someone to sanity check me here.  I have a rig that I decided to throw a couple more GPU's in it.  I has been running with a custom rom this entire time.  I built this back last summer.  

I thought I had documented all the steps to do the flash, the drivers etc, but apparently I was wrong.  After adding the 2 new cards and flashing them to the same rom as the others one by one.  I assumed since nothing else had changed it would come right back up after the reboot.  

Well it turned out there was going to be a battle getting all the boards recognized and the system to boot.  Finally get it to post and all the boards to be seen by the OS, but all of the devices show the exclamation mark next to them and won't load.  Spent several hours messing with it.  Upgraded the drivers to the latest from AMD.  Still no dice.  

So out of frustration I put the stock roms back on the boards and finally after some mucking around for a while I got the system back up on stock roms and hashing away.  

So I try again this morning to flash the boards to a known good custom rom and I am back into the same mess with exclamation marks next to all the cards in device manager.  So here are my steps.  Please tell me what I am missing.  Is there a newer atikmdag.sys file that I should be using?  I am using one from August.

1) remove all cards but 1
2) boot into windows
3) flash card with desired rom, load up atiwinflash with admin
4) Click load and select new BIOS  > click program
5) wait...screen will hang for about 30-40 secs
6) on confirmation box close
7) in device manager right click GPU and uninstall
reboot
9) card should be redetect but now you are in vga mode as it will fail to load driver.
10) hit windows button and power then holding shift click restart, select troubleshoot, adv, restart options, click restart
11) hit 4 on option screen
12) now in safe mode replace the ati file you need into c:\windows\system32\drivers\atikmdag.sys (overwrite).
13) Use the dseo13b.exe to sign the atikmdag.sys file.
14) bcdedit.exe -set loadoptions DISABLE_INTEGRITY_CHECKS
bcdedit.exe -set TESTSIGNING ON
15) hit windows button and power then holding shift click restart, select troubleshoot, adv, restart options, click restart
16) select option 7
17) you should now boot up with mod driver and mod bios all working...if not you did some thing wrong. go back to step 9

I understand that it took a lot of your effort and mod is private/custom. But - andy chance to get it publically?

I actually run a mixed (RX-470/480) Z170 based Rig,
with better no (!) mods,
2 keep it simple switching from ZEC, ETH, XMR, ...
whatever gives me the most in BTC
for my 24 EUR/ct per KW/h.

  PanneKopp

Is there any way to not have to run wattTool every time? I see you can hand adjust the voltage for each phase - is there any way to set that in the rom automatically using some tool? (Polaris Bios Editor won't do it across all phases)

what about hardware errors? You dont care about them? I am sure you have cards which produces tons of errors and crash at some point. With 1 card producing errors for me, whole system crashes at some point after few hours or a day. When no errors, no restart for days.

For anybody who still mines ETH with their 470 4GB, do you find that as a new Epoch DAG is released some GPUs are getting incorrect shares and you need to downclock the memory to 1950?

Few months ago all my GPUs worked at 1120/2000 @ 28.5MH/s but now most need to run at 1950MHz for the memory or there are nothing but huge incorrect shares and memory errors.

30MH rom for Saphire RX470 4GB Elpida
https://bitcointalksearch.org/topic/29mh-rom-for-saphire-rx470-4gb-nitro-oc-elpida-1710085

Just use the Polaris Editor and copy the memory strap from the lower frequency to higher frequency range.

Mod it yourself, super easy.

Does anybody have a modded rom for Sapphire RX 470 Nitro+ 8GB with Samsung memory for Windows 7? If so please share.

thx mate.

link is in this video only place to get it atm unless some one else shares it. i found it looking for ways to tweak sgminer-gm more which ofc I won't find right now , i  did find all kinds of other interesting stuff .

https://www.youtube.com/watch?v=ajQQQ2JQicE