I’ve got Samsung Rams
Which one should i download ?
Try this one VGA Bios Collection: Sapphire RX Vega 56 8 GB | TechPowerUp
The bios version should be the same
you did it right, but for this kind of vega 64 to be flashed with vega 56, the bios switch must stay towards the monitor hook, away from the gpu pin.
Switch the bios switch towards the monitor connector and that should solve your problem.
oh please, i know, you’re welcome. lol
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On Samsung cards I’m able to get 55.1 Mhs with these settings:
core 1100, mem 1020, vdd 850, power 130w
amdmemtweak --CL 20 --RC 37 --RP 11 --WR 14 --CWL 8 --FAW 12 --RAS 20 --REF 65535 --RFC 248 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 12 --RCDWR 12
On Hynix cards I can get 52.4 MHs with these settings:
core 1100, mem 960, vdd 850, power 125W
amdmemtweak --CL 20 --RC 36 --RP 11 --WR 14 --CWL 8 --FAW 12 --RAS 22 --REF 65535 --RFC 239 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 13 --RCDWR 12
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Thanks hotness! I’m getting 53mhs on my Vega 56 (samsung) with your settings.
I turned the memory down to 1000 though to keep fan speed in check.
I’m curios what voltage are you running memory at?
Thanks!
I haven’t changed memory voltage so I would say I’m using default. I flash all my Vegas to 56 bios which uses lower default memory votlage.
I set fans to 70 but the actual speed is anywhere between 75-90%.
I let it run overnight, keep in mind my memmhz is 1000 and no mem voltage set.
I had 3 invalid and 1659 accepted.
Should I tweak anything to get rid of invalids?
how can I tell what BIOS must I download to flash my vega 64? I know everyone says the same but the 56 version but how to tell what is my exact version. hive just shows as xxxx-xxxx
I have the gigabyte 64 so there is no dual bios as well
Cant say for sure about gigabyte but usually vegas are not too picky about bios. Sometimes after flash the good working bios shows in hive as xxx.xxx.xxx so thats not indication of bad rom. If you have possibility, hook your card to win pc and run gpu-z, that will show all device id etc so u can look for exact same vbios file.good luck
whats the odds of the card bricking?
Good point, if u dont have 2 bios on gpu… anyways, i have flashed vega s +10 x and have manage brick dual bios card only by forcing by “purpose”… when testing compatibility.
Cant give u odds 
… doubt that anyone can, decicion its up to u. Flashing is common practice anyways…
hmmmm yea its a very expensive card to replace and i am getting 40MH on it so myabe I just leave it 
or swap it out with my gaming PC’s 1070
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Hi everyone
I have the same troublesome Gigabyte Vega 64
This is what I get (best Hash/Watt ratio)
It can get up to 53Mh but not stable
I use BIOS: from 56
Straps default HIVE: amdmemtweak --CL 20 --RC 36 --RP 14 --WR 14 --CWL 8 --FAW 12 --RAS 22 --REF 65000 --RFC 249 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 14 --RCDWR 12
It is on TRM and use default mode not B variant. B adds 2 more W.
Method at the top of this thread gets it to around 52 but with whopping 180w
Does anyone have any idea how to reduce the power at least a bit more?
I’ve got the Gigabyte Gaming OC RX Vega 64 flashed with Vega 56 bios, got your exact settings and timings except my core voltage can not go lower than 800, pretty similar hashrate but my power consumption is worse than you 
Speaking openly - this cards are very troublesome and I already got rid of mine.
But have you applied straps?
Yeah basically what I meant with timing is the strap, exactly as yours lol, anyway after 12 hours of running, miner side was ok but a lot of stale shares on the poolside, had to lower the memory oc to 910 (got 49.66 mh/s). Power consumption doesn’t changed tho. Will do further testing. Cheers.
This was my last position:
Are you sure that you apply straps correctly. If not built in HIVE ones then you have to do it after every start. I also tried every strap config suggested on this page. Also are using Phoenix? Remove the NVIDIA and try on its own with TeamRedMiner.
I tweaked the strap from someone else in this forum. A little bit different from yours. core overclock with 1000 and 1050 doesn’t change anything so I stay with 1000
For this test I’m using latest hive os image & TRM exclusively only on the Vega, other gpus are using phoenix right now because phoenix only gives 46 mh/s for the vega.
I managed get 50.34 mh/s with 930 memory but only run for 1 hour and a lot of stale shares from the pool before crashed the entire rig (gpu 0 detected dead) with 13 gpus which is too much hassle for only 1 problematic vega IMO.
My last stable tweak 49,67 mh/s with 910 memory. Still can not go core voltage under 800, but this settings get 1-2% stale shares from pool side (mainly 0 stale shares) for about 4 hours. hope it’s stable from now on. Maybe it’s just a luck from the pool but with lower to none stale shares my reported hashrate from the pool is 49.7 mh with average 50.3 mh so to my understanding is I just need the most stable possible hashrate to get maximum shares and then maximum profit, CMIIW.
My best advise would be - get rid of it 
It does not worth a struggle it causes.
safe choice bud, i would defo anyways flash it and get like 10-15mh more lol. good luck with your mining and lets hope for good profits, it is a good gpu for ergo anyways allso, that have been more profitable every now and then lately…