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Vega 64 - 54MH/s with less than 130w

Is this working well? I have been hesitant to upgrade as I am still on the 195 version

ya this work for me i have 3x vega64 core1000 vdd 815 mem 965 get 52MHz
run around 3days get 1 invalid / when i increase mem to 985 get invalid everyday your card maybe can do that
if you get invalid too much try lower mem to 945

How did you guys flashed the Vega 64 to Vega 56, I have tried so many bios and HiveOS always come back with >ROM flashing failed SSID Mismatch. Do I have to force it?

Yes, you can only flash “non-forced” if it has the same SSID, so same manufacturer and type.
So always toggle on forced flash and reboot after flash.

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Yes, I was also long time on 195 and upgraded a few days ago; transferred all my straps to the tweaker and still running strong!
PS: do not forget to delete or ‘uncomment’ the lines in the xinit.user.sh if you add them to the tweaker.

Indeed! Now we need such a magical strap for Hynix too :nerd_face:

EDIT: I found this one from @vsimovic really good !

But my Hynixes need higher RCDR; I’ve never had a Hynix that could go lower than 14…

EDIT 2: sorry, this post shouldn’t go in this thread as we’re talking about vega 64 flashed to 56. That is off course not applicable on Hynix.

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Awesome thanks for the answer I was going crazy with this.

I have a bad Vega 64 flashed to 56 that will throw invalids or crash anytime I push Mem Clock over 960 with the good Samsung strap:

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

Just found a different setting that allowed the card to run at 1028 mem. Wanted to share incase anyone else has a 64 flashed to 56 that cant get past 960 mem.

Increased Mem to 1028, core to 1100, only change I made to the Strap is drop RCDRD to 17 (HW errors at 13,14,15 & 16). Has been running steady with no HW errors or invalids. +3 MH

New Strap:

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 17 --RCDWR 12

(same GPU, just moved it to my testing rig to mess with it)

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Hello, how did you flash the BIOS? I cannot do it with hiveos, it always fails. Regards,

Hello, I have the same card. How did you flash the BIOS? I cannot do it with hiveos, it always fails. Regards,

Enable the toggles “force flash” and “reboot after flash” before selecting a vbios to flash

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Very nice straps.
I made one change and I manage to boost memory clock to 1050Mhz and I have 1 HW error per every 10000 accepted shares for a single card. I can live with that.
amdmemtweak --CL 21 --RAS 20 --RCDRD 17 --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

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just wanted to share, thanks for this post and straps provided by @0Lucifer0
i’m able to throw in any vega cards to the rig and get to 54 mh at a low power consumption and runs rock solid for days.
the last card in the rig was newly added vega64 flashed to 56. its choking up a few invalids every couple of hours. not sure which to reduce, core or mem?
not running config B as its unstable for the mix rig.

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lower mem or higher rcdrd in the straps
maybe your vdd might be too low too for that particular card

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Nice! looks like it runs fine at 1050. That’s cool thanks!

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Here my vega´s Asus 56 is flashed from 64, rest oem 56. I belive i could go higher with some, but for now im happy with these.Maybe ot, but what do u guys recommend for 56 hynix mem? Looks like im getting some invalids wit 1075, perhaps should go to vdd 340. Happy with these my first vegas, great value.

i was so so tempted to buy one vega 64 and sell my two 580 8gb in exchange but i did not

as your setting vega taking actual on the wall 180 watt is not 110 or 130 watt did you check on the watt meter

and my two 580 8gb card give 64mh take on the wall 220 watt which is i find it good
Don’t believe what software show you

my whole system taking 900 watt . 80 watt system alone taking

i havent check individual gpus, but sure, i have watt meter on the wall and i have adjusted hive settings to match actual draw from the wall. im pulling with 2 rigs in total 2485W, if i keep hive settings power settings, the reading is way different. Like my rig 1 is showing 1103w combined draw of gpus on that one on gui is 688w+there will be more than 100w from motherboard and psu effiency lost, fans etc…so its may be around 850-900 w according hive, but the total draw is adjusted in hive settings with watt meter so actual draw match wath hive is showing. Havent really been thinking about single component draw, just total. I belive its well known fact that hive is showing consumption wrong…or am i missing your point here?

@0Lucifer0 Just created an account to thank you mate!

Just got myself a PowerColor RX Vega 64 and have tried numerous settings but never got it to work as well as my Asus Strix RX Vega 56…I would get close (around 50-51) but it was never stable.

I force flashed it with the PowerColor 56 firmware and applied your straps and timings and now it performs exactly like yours. Now I have to test them both on the same rig and see if they will both maintain these hash rates. Just for the record, I am using the latest version of Teamredminer (I think it’s
0.8.2.1)

EDIT: As I was writing this, the rig crashed - approx 1 hour after applying these lol.

In any case, you have set me on the right path and I am experimenting around these values. I am currently using Core: 1050 VDD: 850 MEM: 1000 to see how it goes. These settings coupled with your straps are giving me 52.90-53.00

The important thing to note - and this is something that I have seen in many videos and I have experienced first hand - is that these settings do not work from a cold boot, at least for me.

I have to:

  1. Unset the flight sheet and the OC settings before booting up the rig so it doesn’t start anything.
  2. After it boots up and it’s idle, I enter the straps through the command line (amdmemtweak --gpu 0 –CL 20 --RAS 26 --RCDRD 12 --RCDWR 12 --RC 38 --RP 12 --RRDS 3 --RRDL 5 --RTP 6 --FAW 12 --CWL 8 --WTRS 4 --WTRL 9 --WR 13 --REF 24000 --RFC 239)
  3. I apply the flight sheet and let the card start hashing with default settings for a couple of minutes
  4. Apply the OC

If I do a cold start with OC’ed settings, my card goes into a frenzy and stops working for 10-15 minutes.
If someone knows a way to overcome this, please feel free to chime in. I am relatively knew to this, so any info helps.

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you can now use the advanced settings to set up the amdmemtweak so do not have to command line anymore

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