Noob needs help

LippyCKLippyCK Member Posts: 24
Hi everyone!

I am new at mining, recently bought 1070 and i had r9 380x before, so i decided to set them up and mine a bit.
With both of them, i am pulling about 53Mh/s with ~21 on R9 380x and 33 on 1070.
Using nanopool with claymore miner.
Cards are:
MSI 1070 seahawk EK
micron memory
running at -50% power and +700 on memory
raising clock and power limit doesn't have much effect, maybe +0,2MH but raising about 50W or more on power consumption so it's not worth it

Gigabyte R9 380X G1 Gaming
Elpida memory
-20% power
1625Mhz on memory
clock is on stock
this card could use help with power consumption because it pulls a lot. 180-220W at the moment even with -20% power
I'm using AMD crimson beta crypto drivers, tried bunch of other drivers from 15.12 to newest ones and those seem best
Others have about 18MH/s at more or less same power draw and tend to crash or act weird sometimes.

If someone has undervolted Bios for this card it would be much appreciated and maybe tighter timings on memory would be great!
Any other bits of advice would be great too guys!

I have some other older cards and hardware that just lays around collecting dust mostly so i'm thinking of using it and make one more rig.
This rig will run for start 3x R7 370 4gb and im hoping to get some cheap 1060 or something cos mbo can run 5 gpus.
R7s are:
Saphire nitro 4gb D5 elpida chips
Msi Gaming 4gb with hynix chips
Asus Strix 4gb not sure what chips are on that one

Any advice would be great. What drivers to use with them, maybe moded bios for them, or pointers on how to mod it and what software to use!

Thank you all!
Let your rigs run strong and cool!

Comments

  • LippyCKLippyCK Member Posts: 24
  • LippyCKLippyCK Member Posts: 24
    Here are my 3 R7 370
    asus strix has hynix memory
    GPU0 is asus
    GPU1 should be sapphire
    GPU2 should be msi


  • LippyCKLippyCK Member Posts: 24
    As for my R9 380X G1 gaming elpida memory.
    My bios is attached, so if someone can drop 100mV on core and add memory stripes from ~1400mhz to everything up to 1625 mhz that would be great.
    That card runs fine at 1100 mhz on core and 1625mhz on memory.
  • rmhrmh Member Posts: 389 ✭✭✭
    LippyCK said:

    rmh said:
    I tried that, didnt manage to find anyting in my bios.
    You didn't find the straps or something other?
    That guide is very complete, it details the method to convert your searched Mhz float -> hex -> little-endian, which is the most difficult part in the process to understand gpu bios mod.
  • LippyCKLippyCK Member Posts: 24
    rmh said:

    LippyCK said:

    rmh said:
    I tried that, didnt manage to find anyting in my bios.
    You didn't find the straps or something other?
    That guide is very complete, it details the method to convert your searched Mhz float -> hex -> little-endian, which is the most difficult part in the process to understand gpu bios mod.
    i rtied reading bios with atombiosreader and used go to in hex workshop to search for vram info(that should show ram states and info) but there wasnt that line there

    and i tried converting 142500(stock memory clock) to hex and then little endian and then search for that and reverse of that with adding 0 if front of last digit so i got xx yy zz but anything i tried hex editor didnt find anything
    i tried 1375, 1400, 1500, 1550, 1600,1625 mhz and didnt find anything
    im totaly new at hex editing and im quite sure im doing something wrong

  • LippyCKLippyCK Member Posts: 24
    Ok, i was doing something wrong there.
    After some trial and error i managed to tighten timings a bit and lower voltage.
    im still trying to figure out how those timings are written to lower them a bit more.
    Memory Timings (Elpida)
    tRCDW-tRCDWA-tRCDR-tRCDRA-tRC-tCL-tRFC
    200 MHz: 0-3-2-3-7-6-12
    400 MHz: 0-3-5-5-15-7-25
    800 MHz: 5-5-11-11-31-11-51
    1425 MHz: 16-16-21-21-57-18-92
    1500 MHz: 17-17-22-22-60-19-97
    1750 MHz: 21-21-26-26-70-21-113
    Those are timings i found on almost all R9 380x with elpida chips.As i understand it untill you hit 1500 mark you use 1425 timings, and untill you hit 1750 you use 1500 timings, since i cant hit 1750 with my card copying 1425mhz timings into 1500 and 1750 didnt help much.
    What i want is 14-14-18-18-54-16-88 on 1425 and 1500.
    I found wider range timings on powercolor r9 380x, it has 1250, 1375, 1425, 1500, 1650 and 1750 mhz, i tried copying 1375 timings that are arround what i want into my bios but it didnt work. PC ended up in fail startup loop so i had to use usb to flash it back.

    GPU0 is Gigabyte R9 380x
    Right now it mines with -10% on power draw with room temp at around 21C vents on ~60% i can drop them to ~40% and still stay under 70C. I did take it apart and changed all stock thermal pads with ones from EKWB and i used Thermal grizzly Hydronaut paste for core.

  • rmhrmh Member Posts: 389 ✭✭✭
    LippyCK said:

    Ok, i was doing something wrong there.
    After some trial and error i managed to tighten timings a bit and lower voltage.

    Congrats!
    For others to benefit, can you say about what has you done wrong at first?
  • LippyCKLippyCK Member Posts: 24
    rmh said:

    LippyCK said:

    Ok, i was doing something wrong there.
    After some trial and error i managed to tighten timings a bit and lower voltage.

    Congrats!
    For others to benefit, can you say about what has you done wrong at first?
    Well english is not my native language and i didnt know anything about hex editing so i misunderstood and took 1425000 turned it into hex 22CA4, then i found hex to little endian and tried every combination and didnt find anything.
    Correct way is, turn 142500 into hex(windows calculator, programmer mode) that gives you 22CA4.
    then you read that backwards in pairs of two so you get A4 2C 02(since 2 is left alone you add 0 in front of it). you just search that in hex editor and after that comes your 1425mhz timing strap skip 00 that comes after A4 2C 02 and count 48 pairs, thats what you copy in same place at 1500mhz and 1750mhz stripes.

    Here is my little amd rig 600w for 58 Mh/s, still a bit power hungry for 4 cards but ok.
    Screenshot is after 35h as you can see room temp was 18-25C
    lol, lineup is funny, we have R9 380x gigabyte g1 gaming in middle column, on right we have R7 370 sapphire nitro, followed by disappointing R7 370 asus strix and finally best, coolest and prettiest of my R7 370s...R7 370 msi gaming


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