Custom RAM Timings for GPU's with GDDR5 - DOWNLOAD LINKS - UPDATED - page 58.

doktor83

hero member

Activity: 2548

Merit: 626

Quote from: Eliovp on February 12, 2017, 12:04:16 PM

Quote from: doktor83 on February 12, 2017, 11:48:26 AM

My custom timings for 470 8GB Nitro+ OC (11256-02-20G) - Samsung mem

For the powersaver guy :
(1126/2100 @ -120mV)

http://i.imgur.com/ILSqPVT.jpg

For normal usage guy :
(1300/2100 @ -100mV)

http://i.imgur.com/g4AZZqz.jpg

Congrats, you have a card that won the sillicon lottery...

You do realize that 98 out of 100 cards like that can't handle -100mV while running 1300 core??

Try this on a 6xGPU rig.. and while NOT using claymore.. if you can do that, i will say: Congratulations to you sir.

Why do you think that 1300 is much when the def clock is 1266 ? Roll Eyes

Also why not claymore ? Not enough power hungry? Better sgminer ? Why?

Also im running a 5xGPU rig with -120mV for weeks now on ETH (145mhs)...

Eliovp

legendary

Activity: 1050

Merit: 1293

Huh?

Quote from: doktor83 on February 12, 2017, 11:48:26 AM

My custom timings for 470 8GB Nitro+ OC (11256-02-20G) - Samsung mem

For the powersaver guy :
(1126/2100 @ -120mV)

http://i.imgur.com/ILSqPVT.jpg

For normal usage guy :
(1300/2100 @ -100mV)

http://i.imgur.com/g4AZZqz.jpg

Congrats, you have a card that won the sillicon lottery...

You do realize that 98 out of 100 cards like that can't handle -100mV while running 1300 core??

Try this on a 6xGPU rig.. and while NOT using claymore.. if you can do that, i will say: Congratulations to you sir.

doktor83

hero member

Activity: 2548

Merit: 626

My custom timings for 470 8GB Nitro+ OC (11256-02-20G) - Samsung mem

For the powersaver guy :
(1126/2100 @ -120mV)

For normal usage guy :
(1300/2100 @ -100mV)

niko2004x

member

Activity: 126

Merit: 10

When trying to test new timings on rx 480 (with Samsung K4G80325FB) encountered following unexpected (at least for me)
behavior using Ubuntu 16.04 with amdgpu drivers from stock 4.9.0-rc3 kernel.
If timings in 2000 strap is too tight on rx 480 then system hard crash at boot with 'Fatal error during GPU init mining' error.
Happens at driver loading stage before major os components startup so hardware reset required.

But too tight timings in 2000 strap on rx 470 (with Hynix H5GC4H24AJR) do not lead to crash at boot.
Card is visible by lspci but do not work at 2000 mclk as expected.

WFT?

Wolf0

member

Activity: 81

Merit: 1002

It was only the wind.

Quote from: niko2004x on February 08, 2017, 03:41:15 AM

Quote from: Wolf0 on February 08, 2017, 02:46:05 AM

If it's earlier than RAS, but it matters, it's probably PMG.

I think in preRX PMG is later than RAS, although it is earlier in RX. At least i am guessing it is PMG.
I am more interested about first and third 32bit words from the end of timing string.
First 32bit word from the end looks like set of four bytes with some Ts
(they are growing from strap to next strap in almost all cases).

It's PMG. Oh, first and third? That would be your ARB_DRAM_TIMING2 and your MISC_TIMING2, IIRC.

Eliovp

legendary

Activity: 1050

Merit: 1293

Huh?

Quote from: bughatti on February 10, 2017, 11:08:41 AM

anyone in this thread working on a good rom for the sapphire 480 nitro + 4gb elpida that is steady?

Got one for that card yeah.

Performance is as you expect it to be.

Awesome Cool

:p

bughatti

full member

Activity: 154

Merit: 100

anyone in this thread working on a good rom for the sapphire 480 nitro + 4gb elpida that is steady?

Wolf0

member

Activity: 81

Merit: 1002

It was only the wind.

Quote from: niko2004x on February 08, 2017, 01:10:39 AM

Ok. Compared Stilt and different sets of stock timings for Elpida EDW2032BBBG and Hynix H5GQ2H24AFR in preRX cards.
Relative to closest stock timings tables Stilt version essentialy edits TRC, TRRD and that's all.
Relative to majority of stock timings tables Stilt version additionally change one/two bytes in the upper half of timing string.
Somehow out of historical context i am not impressed.

If it's earlier than RAS, but it matters, it's probably PMG.

Eliovp

legendary

Activity: 1050

Merit: 1293

Huh?

Quote from: Wolf0 on February 10, 2017, 10:40:58 AM

Quote from: dallase on February 10, 2017, 10:35:34 AM

Quote from: Eliovp on February 10, 2017, 03:08:04 AM

Quote from: Metroid on February 09, 2017, 10:33:07 PM

Quote from: Wolf0 on February 09, 2017, 07:06:48 PM

900H/s is a vanity hashrate - it's absolute max and not efficient. 825 - 875 is probably real.

I have been playing with Elpida (EDW4032BAB) 0.85v memory and clock for a day or so, so far I reached 820 h/s on XMR, It needs a lot of work yet, low share difficult rejection rate is around 10% which is bad, memory error is low, need time to improve, it has been fun, after this will be time to play with Hynix.

Got an Elpida 470 4G, best card i've got, does 850h xmr, 30eth, 280zcash without a hickup.

I always thought Hynix would be the better performer but i was wrong. (i'm talking about 470 Hynix, 480's do a shitload better, 850 without a problem..)
And there's a serious difference in Hynix quality.

If you have Elpida's, be glad, they are in my opinion the best ones out there!

Samsung is very decent as well, got my 480 8G's at 800 (can easily do 840-850 as well) core clock 1100, mem 2050 and an undervolt of -120mV vddc.

So in the 80 watt range

Is this claymore 9.7 windows? I have a elpida running 1100/2050 and its barely over 700 on sgminer.

Nope - he doesn't run Win anymore, I don't think, and I think it's on sgminer.

That's correct,

In other words, run it on windows and you'll most likely get better results..

Greetings!

dallase

member

Activity: 129

Merit: 10

Quote from: Eliovp on February 10, 2017, 03:08:04 AM

Quote from: Metroid on February 09, 2017, 10:33:07 PM

Quote from: Wolf0 on February 09, 2017, 07:06:48 PM

900H/s is a vanity hashrate - it's absolute max and not efficient. 825 - 875 is probably real.

I have been playing with Elpida (EDW4032BAB) 0.85v memory and clock for a day or so, so far I reached 820 h/s on XMR, It needs a lot of work yet, low share difficult rejection rate is around 10% which is bad, memory error is low, need time to improve, it has been fun, after this will be time to play with Hynix.

Got an Elpida 470 4G, best card i've got, does 850h xmr, 30eth, 280zcash without a hickup.

I always thought Hynix would be the better performer but i was wrong. (i'm talking about 470 Hynix, 480's do a shitload better, 850 without a problem..)
And there's a serious difference in Hynix quality.

If you have Elpida's, be glad, they are in my opinion the best ones out there!

Samsung is very decent as well, got my 480 8G's at 800 (can easily do 840-850 as well) core clock 1100, mem 2050 and an undervolt of -120mV vddc.

So in the 80 watt range

Is this claymore 9.7 windows? I have a elpida running 1100/2050 and its barely over 700 on sgminer.

Wolf0

member

Activity: 81

Merit: 1002

It was only the wind.

Quote from: LoneRangir on February 07, 2017, 08:36:21 PM

Quote from: Wolf0 on February 07, 2017, 08:12:59 PM

Quote from: LoneRangir on February 07, 2017, 08:05:30 PM

Would anyone be willing to help on this other thread on how to modify the voltage offset for RX 400s? I'd like to make one of my W10 rigs into a linux rig, but I'd hate to give up my WattTool negative offsets.

I'm capable of doing hex editing, but I'm not sure which bit range of the rom image controls the offset.

https://bitcointalksearch.org/topic/bios-edit-for-polaris-1765111

Sorry to be a bit off topic, but you guys seem to know a thing or two.

https://bitcointalksearch.org/topic/bios-edit-for-polaris-1765111

Okay, thanks. I see there will be a bit of a curve in order to get up to speed. Do you know of a tutorial, or is there a script that parses the ROMs into sections, takes edits, and recalculates?

There is one script to recalculate the headers that's public, I think it's on the OC forums.

niko2004x

member

Activity: 126

Merit: 10

Some experimental results.
It seems ~900h/s is a practical limit for Ubuntu 15.04 + fglrx + claymore xmr miner + r9 390 (with H5GC4H24AJR)
at core clock 1135 and any mem clock begining from 1100.
900h/s is relatively easy to obtain with timings tweaking with almost any mem clock starting from 1100,
above 900h/s i had no success.

Metroid

sr. member

Activity: 2142

Merit: 353

Xtreme Monster

Quote from: Eliovp on February 10, 2017, 03:08:04 AM

Quote from: Metroid on February 09, 2017, 10:33:07 PM

Quote from: Wolf0 on February 09, 2017, 07:06:48 PM

900H/s is a vanity hashrate - it's absolute max and not efficient. 825 - 875 is probably real.

I have been playing with Elpida (EDW4032BAB) 0.85v memory and clock for a day or so, so far I reached 820 h/s on XMR, It needs a lot of work yet, low share difficult rejection rate is around 10% which is bad, memory error is low, need time to improve, it has been fun, after this will be time to play with Hynix.

Got an Elpida 470 4G, best card i've got, does 850h xmr, 30eth, 280zcash without a hickup.

I always thought Hynix would be the better performer but i was wrong. (i'm talking about 470 Hynix, 480's do a shitload better, 850 without a problem..)
And there's a serious difference in Hynix quality.

If you have Elpida's, be glad, they are in my opinion the best ones out there!

Samsung is very decent as well, got my 480 8G's at 800 (can easily do 840-850 as well) core clock 1100, mem 2050 and an undervolt of -120mV vddc.

So in the 80 watt range

Good to hear, there a lot things to test, I have been busy today and probably it will take me few days to get back testing. Yeah on XMR at 0.85v 90 watts, on eth 110 watts. Electricity is a big deal, always keen on performance per watt more than anything and custom timings can help with my quest.

Wolf0

member

Activity: 81

Merit: 1002

It was only the wind.

Quote from: LoneRangir on February 07, 2017, 08:05:30 PM

Would anyone be willing to help on this other thread on how to modify the voltage offset for RX 400s? I'd like to make one of my W10 rigs into a linux rig, but I'd hate to give up my WattTool negative offsets.

I'm capable of doing hex editing, but I'm not sure which bit range of the rom image controls the offset.

https://bitcointalksearch.org/topic/bios-edit-for-polaris-1765111

Sorry to be a bit off topic, but you guys seem to know a thing or two.

https://bitcointalksearch.org/topic/bios-edit-for-polaris-1765111

Eliovp

legendary

Activity: 1050

Merit: 1293

Huh?

Quote from: Metroid on February 09, 2017, 10:33:07 PM

Quote from: Wolf0 on February 09, 2017, 07:06:48 PM

900H/s is a vanity hashrate - it's absolute max and not efficient. 825 - 875 is probably real.

I have been playing with Elpida (EDW4032BAB) 0.85v memory and clock for a day or so, so far I reached 820 h/s on XMR, It needs a lot of work yet, low share difficult rejection rate is around 10% which is bad, memory error is low, need time to improve, it has been fun, after this will be time to play with Hynix.

Got an Elpida 470 4G, best card i've got, does 850h xmr, 30eth, 280zcash without a hickup.

I always thought Hynix would be the better performer but i was wrong. (i'm talking about 470 Hynix, 480's do a shitload better, 850 without a problem..)
And there's a serious difference in Hynix quality.

If you have Elpida's, be glad, they are in my opinion the best ones out there!

Samsung is very decent as well, got my 480 8G's at 800 (can easily do 840-850 as well) core clock 1100, mem 2050 and an undervolt of -120mV vddc.

So in the 80 watt range

Metroid

sr. member

Activity: 2142

Merit: 353

Xtreme Monster

Quote from: Wolf0 on February 09, 2017, 07:06:48 PM

900H/s is a vanity hashrate - it's absolute max and not efficient. 825 - 875 is probably real.

I have been playing with Elpida (EDW4032BAB) 0.85v memory and clock for a day or so, so far I reached 820 h/s on XMR, It needs a lot of work yet, low share difficult rejection rate is around 10% which is bad, memory error is low, need time to improve, it has been fun, after this will be time to play with Hynix.

xneoenx

member

Activity: 84

Merit: 10

Quote from: Wolf0 on February 09, 2017, 07:33:47 PM

Quote from: LoneRangir on February 09, 2017, 07:31:31 PM

Do you visualize or simulate your timing parameter changes, or make them and test them live?

I usually make them and test them live, but I know some depend on the values of others, so I often adjust for that.

God damn it. I have been flashing at least 15+ times trying all values, where the hell is RAS2RAS Jesus god damn it. Each flash takes like 6 minutes, Flash => Restart => Test @ 2000 => Restart => Test @ 2100. On and on for the past 5 days now. Best part is, each HEX string I do it on paper. FUN! Best I have is 800, at 1160, 2120. But then again, based only on if it runs without crashes. Trying to get those ones first and then work backwards to see how it wokrs as I dont think I know which of these timings even matter, or if all do.

Trying to go about it theoretically without knowing how the algo works, is like finding a needle in a haystack, thats somewhere in the ocean.

I think ETH is more dependant on speed vs timings no? Im sure we can optimize it, but the pay off wont be much I dont think. 1 - 4% gains? XMR is where the money is 20% gains for a good strap.

Wolf0

member

Activity: 81

Merit: 1002

It was only the wind.

Quote from: kemo6600 on February 05, 2017, 02:44:47 AM

Quote from: dallase on February 04, 2017, 08:39:24 PM

Well, that is eth+dcr, so 27.19mh eth and 405mh dcr.

I have to keep my 470's in the 1925-1945 range, otherwise, optiminer blows up terribly even with low intensity zec mining.

RX 470 Nitro 1500 mhz strap @1100/1900 easily pulls 27.3 mh ETH + 396 mh DCR @ Dcri 29 .

Almost all of my cards runs error free at 1900 , above that some start to showing error .

I have seen Wolf saying that he is doing 2000+ MHz memory and 29+ mh , perhaps the it is either 1500/1650 strap mix and doing 2000+ Mhz or 1375/1500 strap mix and doing 1900 MHz .

Custom timings.

ray_saeed

jr. member

Activity: 87

Merit: 1

Quote from: Wolf0 on February 09, 2017, 07:06:48 PM

Quote from: ray_saeed on February 09, 2017, 06:55:05 PM

Quote from: EuroCanuck on February 09, 2017, 06:11:41 PM

Quote from: ray_saeed on February 09, 2017, 05:49:23 PM

I am interested in purchasing custom Elpida and Samsung roms for XMR mining with Nitro+ RX 470 OC cards (4GB and 8GB). If you have stable custom roms available please message me with a quote. Thanks.

dude,for free i will help you out.im mining with xfx rx470 4gb black's with elpida. all 24 at doing 28.3mhs on eth and 110ish watts each.

Thanks for the offer buddy

. I am getting around 28 mhs in ETH and getting around 700 h/s in XMR. These cards are undervolted, with clocks @ 1100/1950 and 1500 straps. Was reading about some folks getting upto 900 h/s while mining monero and was interested in getting similar results.

900H/s is a vanity hashrate - it's absolute max and not efficient. 825 - 875 is probably real.

I would be willing to buy in that range as long as it is stable.

LoneRangir

hero member

Activity: 615

Merit: 500

Do you visualize or simulate your timing parameter changes, or make them and test them live?

Topic: Custom RAM Timings for GPU's with GDDR5 - DOWNLOAD LINKS - UPDATED - page 58. (Read 155645 times)