Excellent post. I’ve got 3 rigs with 12x Vega 56s and 12x Vega 64s getting 4.7 GH/s after a day of tweaking. Vega 56s are stable with 1400 core, 900-920 VDD, and 920-930 Mem. Vega 64s (flashed to Vega 56) are stable with 1400-1500 core, 900-920 VDD, and 920-990 Mem.
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@ss-silver I tried your straps and followed TRM guide to OC, but your straps did not work. It crashes, not even with the lowest oc recommended. I was playing with the VDD also and I had no luck. I have a Gigabyte Vega 56 and Samsung Memory. The best result I could get is with the default straps of TRM, these are my settings:
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
Could you help me to reach the 200 mhs?
So first a power disclaimer… I dont own any gigabyte but my understanding is they just display wattage used by the whole card, unlike the rest of vegas which display only the wattage of the GPU die, and not the fans, lights and power loss from the memory controller and VRM.
So if you are using any splitters, or an 8pin to 2 6+2 pin to power this GPU I would not recommend pushing power this high. 8 pin cables are “recommended” 150w max, regardless if they have 16 or 8 pins on the other end. Probably fine to push higher than “recommended max” but should be plenty safe if you have 2 8pin cables powering this card, as that can safely carry 300w.
Having said that might not be worth the extra wattage per hash but if you really want to see if that card can do 200 and assuming vdd 925 is the minimum you can run 1300 core stable at:
-
Core: 1440
-
VDD: 970
-
Mem: 960
If it mines start dropping vdd by 10 until you find the minimum its stable at.
If that wont mine or crashes, bump VDD up by 10 & restart the miner until it starts mining. If the VDD level gets too high for you drop core to 1420, or next step down would be 1400core 930mem. I’m guessing you end up around 1400 / 960 / 930 for 190-195Mh, or might need a crazy value like vdd 1000+ to mine at 200.
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hi i have vega 64 i got hashrate 98 Mh/s , Core 1470/mem 970 , Core undervolt: 970 can you help me 
@alireda - If you are using a different miner, switch to Team Red Miner.
@rakjung23 - you should flash the 64 with a 56 bios. More hash, less watts and more stable and it only takes like 5 minutes to flash a 56 bios. If you have never flashed a bios this is a good guide to do it safely in HiveOs.
4 & 5 on this rig are 64s flashed to 56, just installed a MORPHEUS II cooler + 2 120m Noctua fans on GPU4, at 200Mh slightly lower temps than my Rog Strix. love it! might buy one more of those for GPU 5.
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Hello. Who tried to play with memory strain? What results have you been able to achieve?
Wow, that is an admirable rig.
I’m wondering what you have SocMhz set to? On my 5* Vegas I have always been able to get 180 Mhs @ 129W with core 1300, vdd 850, SocMhz 850, MemMhz 847.
On some I can get away with vdd 825, while others can only do 170 Mhs but use 119W.
thanks YOU brother
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Hello everybody.
(Google Translate)
first of all I’m new to mining.
I have the problem that I don’t get a good hashrate with my vega.
It is not BIOS flash to a 56 and I don’t want that either because I have no idea about it. and don’t trust me
have to do it i 1 png (new youser)
what is my problem?
do i have to make a bios flah?
EDIT:
i did it!!!
now it’s a Vega 56!
and
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
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hey man, can i know your BIOS Settings,
2 of my motherboards give me crap each time i add a 4th vega 64 flashed with 56.
Are you on Gen 1 or Gen 2?
Would be helpful if you specificy your motherbaord.
And list down all your bios changes.
I know its my bios as both of them would give me dead gpu each time i add a 4th one. but with 3 vegas only it runs smoothly.
last two I built
mobo: TB250-BTC BIOSTAR
mobo: PRIME Z390-A ASUSTeK
I boot, then update the mobo bios under advanced setting, then set to Gen 2 and Enable 4g Decoding.
Using SAPPHIRE Vega 64 Nitro +
Stock Bios…
Using this
Core Clock, Mhz
1275
Core Voltage, mV
840
Memory Clock, Mhz
960
FAN, %
90
Tweak
amdmemtweak --CL 18 --RC 36 --RP 13 --WR 13 --CWL 7 --FAW 12 --RAS 22 -REF 65000
--RFC 249 --RTP 6 --RRDL 4 --RRDS 3 --WTRL 9 --WTRS 12Help. How did you manage your rx580 to get 72mh with only 80w?
Did you mod bios? Did you use amdmemorytweak settings? Did you do both? Which settings did you use?
I have 1 Vega 64 Sapphire nitro + (bios mode to 56 Sapphire.RXVega56.8192.171218)
HiveOS is on an SSD. and connected on LAN
Every 5-10 hours the rig goes offline. like this:
I tried many settings:
1400 Core
920 VDD
900 MEM
193 Mh
1420 Core
900 VDD
930 Mem
198 Mh
each with this tweak:
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
Support send me this setup:
1000 Core
900 VDD
960 MEM
138 Mh
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
all time it goes Offline in a few hours…
do you have any idea? maybe it’s not because of the overglocking?
HiveOS on a USB 3.0
Team Red Miner - HeroMiners
Usied on a riser in 2º slot
Whe have the same card… with the same bios…
Im using this settings…
It appears to be ok…
Core Clock, Mhz
1420
Core Voltage, mV
905
Memory Clock, Mhz
930
FAN, %
80
amdmemtweak
–CL 20 --RAS 20 --RCDRD 12 --RCDWR 12 --RC 37 --RP 11 --RRDS 3 --RRDL 6 --RTP 5–FAW 12 --CWL 8 --WTRS 4 --WTRL 9 --WR 14 --REF 65535 --RFC 248
A bit unstable (i think) the hashrate… is around 175Mh/s - 196Mh/s +/-
Because i have a 1080ti (nanopool - nanominer) and the hashrate is always around 103.4Mh/s - 103.6Mh/s
Try and see if stays Ok…
I’ll try it. I will get back to you later. Thanks
I’m gonna find you, and i’m gonna marry you. You handsome fella!
Thank you very much man!
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hahaha, saw you post your getting a couple reference 64s soon…
These two are Reference Vega 64s from Sapphire and XFX flashed to this 56 bios
GPU 4 (Sapphire 64, temps are low because I installed an after market cooler)
amdmemtweak --CL 20 --RC 36 --RP 11 --WR 14 --CWL 8 --FAW 12 --RAS 20 --REF 65535 --RFC 248 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 12 --RCDWR 12
GPU 5 (XFX 64)
Same Except RC 37
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