Silver , do you stick to the 1400 effective core ? or do you go past it ? ie will the vegas run at 1440 - 1500 effective core on ergo ? or depends on stability ?
So What were your settings before moding it to Vega56? I just got a hold of a vega 64, but wanted to get used to tweaking them before locating more. I figured the 64 would be a better buy but after seeing that people mod it to the 56 maybe not such a good idea.
I’m only getting about 68.81MH/s at the moment 
not cool when my 580s get about 66MH/s…I have tried many settings on here but just doesn’t stick. ends up bringing down my whole rig.
My rig is strictly HiveOS so should I invest in getting a test bench to mod this card?
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I top out at 1405 effective core… during the summer. Electric cost are like double here right now so I care a little more about watts and heat this time of year, most are running closer to 1305-1350.
But 1470 effective core and SOC state 1028 (by setting memory to like 970-990) will run at 207Mh. I ran that for a few days, its the first screenshot in this thread, gotta scroll WAY up now lol. You will need really good cooling like Strix, Nitro + or MAYBE the red devil. The reference card I ran at 207 has an aftermarket “Morpheus” cooler and Noctua fans.
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Where are you located ? im in Australia . i dare say running at those high settings though will take its toll on the cards ?
You will get better results when you flash to 56; all these straps and OC’s are for 56 biosses; if you apply those on your 64 you will get worse results. Flashing is easy; just find the correct 56 vbios and force flash it from within hiveos.
And a test bench is always a good idea!
help me with Power Color Vega 56 Red Devil (Hynix), bios original, unable to past 172 MHS
if no memtweak set with core 1360, vdd 900 mem 900 i’m able to get 164 MHS
but when applying this memtweak :
amdmemtweak --CL 20 --RC 37 --RP 13 --WR 11 --CWL 7 --FAW 12 --RAS 23 --REF 65535 --RFC 249 --RTP 6 --RRDL 4 --RRDS 3 --WTRL 4 --WTRS 4 --RCDRD 18 --RCDWR 11
it will crash, so with above memtweak i set oc :
core 1225, vdd 900 mem 847 i was able to get 171.2 MHS (Stable)
is there any memtweak setup for this powercolor hynix so i can get above 175 MHS ?
i try other memtweak hynix in this thread with no luck (always crash under 2 minute)
Hi guys, one question. I just bought an Asus Radeon RX Vega 64 rog strix. I would like to know if once I receive it (probably tomorrow), if I need to flash Bios with Vega´s 56 Bios, to be able to get more hashrate.
I just have 1 x Vega 56 and I had to do nothing with Bios, but I don’t know if Vega 64 needs that Bios change.
Thanks!!
@sirvok I would try 846 mem (to drop you to SOC state 847) and just bump up core by 40-60 if the memtweaks are not doing it for you.
@Elysium I dont mind running my cards hard but if mem temp goes over 85 I usually shut them down this only happens to me when my AC goes out during the daytime. I also tear down the rigs and clean the dust off every 4-6 weeks. Heat and dust kill cards IMHO. I am in the US but will actually be moving to Australia next year!
@oskuro Yep you will want to flash that with the 56 strix bios, but there are two and they have different power limits. I dont remember which one to use @Smining570 has flashed a 64 Strix, he probably knows the right bios to use.
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Shall I use Amdvbflash to flash this Bios?.
What Overclock and Strap do you recommend?
Thanks!!.
EDIT: Maybe these ones?: Mining ERGO with Vega 56 & 64 - #268 by Smining570 I don´t know which one of those Vega 56 are Vega 64.
On that post’s picture Strix is gpu 3.
I would use hive flash tool.
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Ok great. I never used HiveOS flashing tool, but I will find a tutorial. I guess you can backup both original Vega´s 64 Bios before flashing Vega´s 56.
Thanks!
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Lucky for you i am flashing a 5700 today so…
Before you start make sure the bios switch is on OC / performance mode, and download the bios you want to flash on the machine you update your OCs from.
- Click into the worker that has the GPU installed that you want to bios flash
- Stop the miner (i also unset the flight sheet to be super sure it wont start mining but that is not necessary)
- Click Download bios in the overclocking tab then wait a minute and you will see a recent message the download is complete, click it to get that bios and save it locally as a back up… just incase.
- Back on the over clocking tab click Flash VBIOS^
- Upload the desired (56) bios and select the right GPU
- Switch the toggle to force flash and click upload
- wait like 10 seconds the you will see a recent message that the ROM flashing OK
- Use Power Actions to reboot the machine
Should boot you will see that card is now a 56 in Hive and start mining if you have a flight sheet, or if you unset that just reset the flight sheet so it starts mining.
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Wow, thank you so much!!! 
ok, I just swapped my Vegas and an RX 480 from windows to a new rig I built running hiveos and can not seem to match my windows hashrates.
On the vegas the issues seems to be that they are hard capped at 165w for some reason when I needed 175w to get peak hashrates on windows.
How can I increase the power limit? I have tried putting in every number I can think of in hive, 50, 100, 200 etc. Nothing seems to effect it at all.
Do I need a modded bios or something? 1 is an airboost and the other a basic blower card.
Any ideas?
try your suggestion @ss-silver , and achieve 172.8 MHs with more watt, so i will revert back to my original oc. sigggh
I also bought a brand new “Sapphire Radeon RX VEGA64 Nitro+”. Can I use the same Vega´s 56 BIOS that I will use with “Asus Radeon RX Vega 64 rog strix” ? @Smining570 @ss-silver
Thanks!
No, with aftermarket cards you should stay with the same brand, so you should look up its particular Sapphire Nitro+ 56 variant on VGA Bios Collection | TechPowerUp. There are a few Nitro+ on that page.
Unfortunately I don’t have one of those so don’t know which one specific.
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Oh I see, so the BIOS above, that works for “Asus Radeon RX Vega 64 rog strix”, wouldn’t work for this “Sapphire Radeon RX VEGA64 Nitro+”, gotcha.
I checked the link that you provided, but yeah, how to know then which BIOS should I use for my “Sapphire Radeon RX VEGA64 Nitro+”? mmmmm well, I guess someone here will have it and knows which BIOS to use 
As I see, there are 3 possible BIOS:
