Topic: Review: Custom ROM from Eliovp - RX480 Nitro+ 8GB (Samsung Memory) XMR ~850h/s - page 2. (Read 19000 times)

hey guys, and then especially mean eliovp and wlof0

i have 6 sapphire rx 480 nitro+ 8gb cards, a 128gb ssd hard disk, a brand new corsair 1200w platinum power supply , Powered gpu risers and an old 4 pci slot motherboard. i run windows 10 ( not a bought version , i ativated it with an activator and disabled windows update ... ).
one of these days my h81 pro btc motherboard should arrive that i ordered.

The situation is the following , for 2 weeks now i am trying to get my rig ( 4 cards at the moment ) stable but its not working... i started of with claymore miner and with standard roms and no
over or undervolting and memory tweaking it runs stable... but i dont want 640 hash at a high power consumption.
so i started just by copying the 1750 straps to 2000 straps and i flashed all cards with the new bios , after a few hours my rig crashed ( windows crashed because off an amd driver crash accroding to "who crashed" ). and this still just by copying the 1750 straps to 2000... if i start undervolting or higher the mem from 2000 to 2150 then i get great results ( still with 1750 timings ) but it is absolutly NOT stable.

after all that misery with claymore miner i tried sgminer , it is a bit slower but it looks like it is more stable, anyway when i try it with 1750 straps again , the miner seems to block after several hours ( just the mining software , windows is not crashing this time ). so i wrote a script to restart the pc every 2 hours and that worked, but still not happy because i hear all kinds of story of peopel with great results and great power consumtion and that runs rock stable. So i tried and tried and tried , last bios i tried was V4 bios from " jukebox " , that looked promissing but still crashes on claymore miner and blocks in sgminer.

After all that trying i have problems with sgminer and claymore , my fans go nuts after an hour on sgminer and in claymore i just cant control the fanspeed or temperature target anymore. in claymore the fans always run 27 - 28 procent and temperature runs up to 85+ degrees...

So i stopped my miner , and i await my new motherboard ( asrock h81 pro btc ) , i will do a clean install of windows 10 ( still with activator ) and hope that with the new mobo it will run more stable. i will start again with just copying 1750 straps to 2000 and see... and i want to start with only 1 card... hopefully i can control fan speed and temperature again.


guys ( eliovp and wolf0 ) could you please tell me what to do , can you tell me that just copying 1750 timings to 2000 is not enough to run rock stable? if thats the case i will consider buying the rom ( i dont want the super 850 hashrate but 750 rock stable and low power consumption would be perfect for me ). so please respond or PM me , i am kinda desperate right now , i invested some money in something that does not really run at this moment. and i planning to buy more rx 480 if i get it right with ( hopefully ) your help.


thank you so much in advance

There's one under way.. i will have those numbers later this week (hopefully) 

Hynix is better than Elpida.
  If you have a card with Elpida Memory sharing your score

I would be interested in seeing the ETH/ETC hash rates for the Eliovp modified ROMs as well.

For those of you with them if you could post both that and your XMR hashrate with your GPU/MEM clock settings that would be really helpful for comparison purposes.

Robert

QQ: Any idea on the actual powerdraw mate? Just trying to get the w/h ratio compared to copy pasting straps. I figured out how to do the custom straps, as I have no programing knowledge I will have to use excel to try and get shit done and spend half a day or more to get one strap out. Just trying to get some efficiency numbers down to see if its even worth it. Thanks a ton!

Run it stock at those clocks and run it modified, power usage is as good as the same yes.

 same power use in both cases?

Just had a client, 470 4G Hynix, 880h, core 1275, mem 2050  

Edit: Shoots over 900 with core clock at 1350..

I have 820 Hs with Rx 480 4Gb Nitro + 1306/1750 default clock, elpida memory, after mod bios set @1306/2050 about 820H/s

You're confusing people, i'm not OP and i'm not Eliovp. I don't have his mod, i'm trying to do my own from scratch. *I* get under 100w per card, for 750h/s~ That is all i said and that is all i have at the moment. I could add the voltage offset in Eliovp/OP's mod in less than a minute, its not because OP didnt want/get it that a mod doing 850 is shit.

What is the actual vddc with -69mV?

Sorry but i'm not a hater,
in your post you show this http://virosa.ethosdistro.com/ and no card doing 850 h/s.

What i see it's your card can do 750 h/s for 1180 core and 2150 for memory.
It's good but not great.

It's better to just ignore those posts mate

There are always haters out there 

You know what you can do, i know, that's more than enough.

100h/card more than you isint great? My cards do -125mV, and its a really easy thing to mod in the bios, OP has stock voltage, surely you must understand what that entails. Editing the timings by hand, not that easy.

hi,

I have 6 rx 470 nitro+ 8 Gb and all my card can do -96 mv.
For XMR 600 W for 4500 h/s in sgminer-gm so your result are not so great.

yeah ref cards can uv best no idea why

I overvolted my mem a bit, didnt see a draw difference, nor any visible difference in mem stability. I assumed it wasnt read by the i2c. I put -125mV on my Nitros for XMR, though some need -100 to -50mV wtf :S
http://virosa.ethosdistro.com/

The ref's quality are much more consistent.

thats horrible power usage since you are paying him ask for rom that does the same thing with a -100 core and -50 mem undervolt I would pay for that

its not really worth it to me to buy roms becase i have tons of difference cards brands , I just mod them myself

Hate to say this but 390 can do that.

It's an RX480 (RX470 giving the same hash, CUs don't matter it seems, only core mhz and mem straps).
The test was done at high core clock. I usually keep at 815h/s using 55w on gpu-z (90w from the wall). Power is expensive where I live.

L.E. Samsung memory - 4gb.