Topic: Custom RAM Timings for GPU's with GDDR5 - DOWNLOAD LINKS - UPDATED - page 14. (Read 155685 times)

So you've been playing with umr
Are you going to release your tool for the public or keep it private? I myself have similar tool that does that but only for private use.

It's a complex topic, so it takes a lot of reading and research to understand.
At 29.5Mh/s for eth, you're not going to get much better than that anyway.

I recently decided to take another look at RAM timings now that many people have been playing with custom timings for several months.

Instead of zeroing FAW/32AW as I do in my strapmod utility, I think it is better to set them low.  7/10 seems to be standard for Hynix straps, while 6/8 is typical for Samsung.  My testing so far using 6/8 on Hynix gives the same performance for eth mining as 0/0, while potentially being more stable at higher memory clocks.
I also suspect the field labels may be reversed, so FAW is really 32AW, and vice-verse.  In my testing, when I set "FAW" to 8 or 10 while leaving "32AW" to zero, I see no slowdown in ethash speed.

I may update my strapmod when I'm done, but my goal is to finally finish a Linux tool I started working on last year that tweaks timings at runtime.  This allows for tuning the memory timing for ethash, equihash, or cryptonight without reflashing the BIOS and rebooting.  It has already greatly improved strap testing, as I have been able to modify timings on the fly while mining; I don't even have to restart the miner.  I still crash the GPU a lot, as dynamically switching between two sets of good timing will still cause a hang depending on which timings you switch in what order.

is there any topic for beginners?
is there any topic that collect best timing for each card
i have sapphire rx470 4GB Elpida and on ETH have 29.5Mh/s
is it the best result i can have?

Hi all, just got 2x Aorus 580 8gb thinking they will perform better than thier 4gb (Hynix Ajr) counterparts. Ended up discovering that this Hynix h5gc8h24mjr is SO different than the the Hynix AJR!
The 4gb RX 580s aorus hynix Ajr are speed devils, i was wondering why people curse hynix if i can run them ~ 1200mhz/2125-2200 getting 925-1008 H/s! (and can still go higher stable!!! with GG 1.3 pre6b or GGS but rather keep them at 1200-1225mhz core)
So far i tried the following with my 8gb (h5gc8h24mjr) 1536(RI)x2(Threads)x8(Work) and many many variations with 1250 mhz/2250. nothing so far gave me anything above 900 h/s!
With Eth though, they perform really well equivalent to the 4gb (which can steady 32.5 mh/s!)

My questions now, i tried both those straps they are quite similar, the cards max reaches 2100mhz and then gives artifacts (if main gpu) or just blue screens.
So shall i just pass the 2250 limit and overclock memory as far as i can? with a higher core clock as others do? (i didn't like the idea to have a 1350/2350mhz undervolted mining, feels so stressy for mining)?
What Raw intensities worked for you guys with the same memory? the 896/8/2 GG is insanely a sweet spot for the 580/570?
[/quote]

Try R0land's fixed timing:
777000000000000022AA1C00B56A6D46C0551017BE8E060C006006000C0A1420AA8900A00300000 01612343CC0314417 # less memory errors due to increased write recovery , good for ethash
zeroed: tFAW, t32AW
fixed some others.
777000000000000022AA1C00736A6D46C0551017B88E860B006006000C071420AA8900A00300000 01310343CB82F4217 # should act better on cryptonote, untested.
reduced write recovery
reduced actrd, actwr and RP/WR+RP


[/quote]

Anyway, if you provide me with proper sgminer config, i will test it.
I tested with : -X 448 -w 256 -g 2
at 1380mhz/2000mhz, and it was doing 28.7Mh/s at ~130w for the GPU. If the config is not correct - those numbers will go up.

...

What ETH? I think you got the wrong quote.

did you test it for eth other than that 30MH test? i don't understand why so many zero's went away -_-

Eevrything you need is in this thread...and its also free, you don't have to pay

Yeah, sure.

can Somebody learn me writing custom timinig?
after i learned will donate him
 

I'm using claymore on win 10 with blockchain drivers. all of my other GPU are performing fine. Just the one MSI. I submitted an RMA. hopefully I'll get one back with samsung mem.

If anyone else has a custom rom I can try before I ship it out tomorrow I would appreciate it! I'm about to give up.

Do you use Claymore and the new adrenalin-driver ? That´s maybe the problem.

It looked like the mod was going to work great initially with solo eth @ 28.5mh/s then the temp increased to 61 C and it crashed again after about 2 minutes :/

Try R0land's fixed timing:
777000000000000022AA1C00B56A6D46C0551017BE8E060C006006000C0A1420AA8900A00300000 01612343CC0314417 # less memory errors due to increased write recovery , good for ethash
zeroed: tFAW, t32AW
fixed some others.
777000000000000022AA1C00736A6D46C0551017B88E860B006006000C071420AA8900A00300000 01310343CB82F4217 # should act better on cryptonote, untested.
reduced write recovery
reduced actrd, actwr and RP/WR+RP

I copied to 1750 and up and got a crash around 60 C. That's been a consistent problem with every single bios attempt on this card, it crashes when temps increase.

Think I should RMA it? less than 30 days old

0:1750 and up?

I have a rx 560 with the same memory and the straps looks like the same.
Try this strap:

777000000000000022AA1C00B56A6D46C0551017BE8E060C006AE6000C081420EA8900AB0300000 01C143840DB324418

Good luck !

I've spent the last 2 weeks reading and combing through forums but I can't seem to find the answer to what I'm looking for.

I have 1 gpu that's giving me trouble, it's an MSI 580 8gb with hynix H5GQ8H24MJ.

I tried .roms and straps from others, I tried to make my own. I even tried to learn basic python just to use some of the resources in this forum but I really not good enough yet.

What can I do to mod this bios effectively?

https://imgur.com/a/uXVH7

Some have offered to sell me straps, but learning it on my own is why I'm here. Although I'm about ready to pull the trigger.

If there's a resource here that I missed, I apologize.

Any help or nudges in the right direction would be great.