Custom RAM Timings for GPU's with GDDR5 - DOWNLOAD LINKS - UPDATED - page 28.

nerdralph

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Quote from: PcChip on April 24, 2017, 07:42:41 AM

Quote from: nerdralph on April 23, 2017, 09:09:43 AM

For amdgpu I use ohgodatool and rocm-SMI
http://nerdralph.blogspot.ca/2017/03/amdgpu-pro-1660-on-ubuntu-kernel-4105.html

When you're ready to come back to the deep end of the pool we'll still be here. :-)

on the rx470 in question I ended up hard-coding mem/core clocks & voltages in the BIOS so no tool is needed to change speed, happy with it on Win10 LTSB for now but may try linux again, thanks

question: on your blog, in the amdgpu screenshot it shows that 2100 MHz is the max, why is overclocking limited in linux? (or do you just not care becuause 2100MHz happens to be perfect for eth using your tightened timings?)

If you look back in this thread you'll see where I posted about hitting a limit of 2100 with this particular card. Lots of Linux users have cards (usually Rx 480) running up to 2200 or even higher.

Q_R_V

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Quote from: PcChip on April 24, 2017, 07:42:41 AM

[...]
question: on your blog, in the amdgpu screenshot it shows that 2100 MHz is the max, why is overclocking limited in linux? [...]

It's not limited in linux, but it's limited in cards bios. You need to increase max mem clock in there.

PcChip

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Quote from: nerdralph on April 23, 2017, 09:09:43 AM

Quote from: PcChip on April 22, 2017, 03:18:39 PM

I see that uses "aticonfig" , I thought that stopped working with the latest drivers?

I tried going the linux route about 2-3 weeks ago and the only thing I found to change clock speed was "radeonjet" , and it maxed out at 2100 Mhz

I'm sticking to windows for now but thank you for sharing your script

For amdgpu I use ohgodatool and rocm-SMI
http://nerdralph.blogspot.ca/2017/03/amdgpu-pro-1660-on-ubuntu-kernel-4105.html

When you're ready to come back to the deep end of the pool we'll still be here. :-)

on the rx470 in question I ended up hard-coding mem/core clocks & voltages in the BIOS so no tool is needed to change speed, happy with it on Win10 LTSB for now but may try linux again, thanks

question: on your blog, in the amdgpu screenshot it shows that 2100 MHz is the max, why is overclocking limited in linux? (or do you just not care becuause 2100MHz happens to be perfect for eth using your tightened timings?)

Oakey22

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Quote from: laik2 on April 23, 2017, 08:29:49 AM

Quote from: Oakey22 on April 23, 2017, 08:13:38 AM

Quote from: doktor83 on April 23, 2017, 08:10:44 AM

Quote from: Oakey22 on April 23, 2017, 07:46:48 AM

Puzzled with this Rx480 Asus Dual 8Gb, same memory straps that came with my reference ones, did the same mod to the straps ( 1750 to 2000 ) and it keeps crashing.

Anyone think it could be a duff card?

Ii bet your mem is micron ?

Samsung memory Sad

Its actually samsung. I can advise you to lower your VDDCI to 850 and try again. I had one of those gpus that crashed on stock, lowered vddci and it was more stable.

Hi, I have now put 2 offsets in the bios, VDDC and VDDCI that wasn't there before, i have set VDDC to F8 and VDDCI to F3, which gives me a lot more stability on the system over all but 1 of the cards. I do still have 1 card on the rig that is playing up though and keeps crashing on anything other than the stock 2000 clocks. I will keep trying different settings but not holding out much hope for this one now.

nerdralph

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Activity: 588

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Quote from: PcChip on April 22, 2017, 03:18:39 PM

I see that uses "aticonfig" , I thought that stopped working with the latest drivers?

I tried going the linux route about 2-3 weeks ago and the only thing I found to change clock speed was "radeonjet" , and it maxed out at 2100 Mhz

I'm sticking to windows for now but thank you for sharing your script

For amdgpu I use ohgodatool and rocm-SMI
http://nerdralph.blogspot.ca/2017/03/amdgpu-pro-1660-on-ubuntu-kernel-4105.html

When you're ready to come back to the deep end of the pool we'll still be here. :-)

doktor83

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Activity: 2548

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Quote from: laik2 on April 23, 2017, 08:29:49 AM

Quote from: Oakey22 on April 23, 2017, 08:13:38 AM

Quote from: doktor83 on April 23, 2017, 08:10:44 AM

Quote from: Oakey22 on April 23, 2017, 07:46:48 AM

Puzzled with this Rx480 Asus Dual 8Gb, same memory straps that came with my reference ones, did the same mod to the straps ( 1750 to 2000 ) and it keeps crashing.

Anyone think it could be a duff card?

Ii bet your mem is micron ?

Samsung memory Sad

Its actually samsung. I can advise you to lower your VDDCI to 850 and try again. I had one of those gpus that crashed on stock, lowered vddci and it was more stable.

I had the same thing on xfx cards, always crash on stock voltages, but when lowered, works ok Roll Eyes

laik2

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Quote from: Oakey22 on April 23, 2017, 08:13:38 AM

Quote from: doktor83 on April 23, 2017, 08:10:44 AM

Quote from: Oakey22 on April 23, 2017, 07:46:48 AM

Puzzled with this Rx480 Asus Dual 8Gb, same memory straps that came with my reference ones, did the same mod to the straps ( 1750 to 2000 ) and it keeps crashing.

Anyone think it could be a duff card?

Ii bet your mem is micron ?

Samsung memory Sad

Its actually samsung. I can advise you to lower your VDDCI to 850 and try again. I had one of those gpus that crashed on stock, lowered vddci and it was more stable.

Oakey22

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Activity: 489

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Quote from: doktor83 on April 23, 2017, 08:10:44 AM

Quote from: Oakey22 on April 23, 2017, 07:46:48 AM

Puzzled with this Rx480 Asus Dual 8Gb, same memory straps that came with my reference ones, did the same mod to the straps ( 1750 to 2000 ) and it keeps crashing.

Anyone think it could be a duff card?

Ii bet your mem is micron ?

Samsung memory Sad

doktor83

hero member

Activity: 2548

Merit: 626

Quote from: Oakey22 on April 23, 2017, 07:46:48 AM

Puzzled with this Rx480 Asus Dual 8Gb, same memory straps that came with my reference ones, did the same mod to the straps ( 1750 to 2000 ) and it keeps crashing.

Anyone think it could be a duff card?

Ii bet your mem is micron ?

doktor83

hero member

Activity: 2548

Merit: 626

Quote from: cryptominer420 on April 22, 2017, 10:25:03 PM

Quote from: EuroCanuck on April 22, 2017, 06:01:40 PM

iv got a whole farm of only xfx black 470 4gbs and today just by chance ended up with a MSI 480 8gb with samsung. of course did a quick run stock to see,got 25mhs..tried 1500 strap as usual,couldnt build dag. memory at anything over 2000 it doesnt mine. did a quick look through this thread as iv been following hoping for better straps for my 470(elpidas) .anyway to the point,470s im getting 29.3/250 dual mining eth/pasl. this damn 480 now matter what i do i cant get it over 28!... tried this strap
777000000000000022CC1C00106A5D4DD0571016B90D060C0060070014051420FA8900A00300000 01011333DC0303A17
was posted on page34(not sure who created it,sorry,thanks tho!)...WHAT GIVES...is the msi gaming x just crap or am i missing something that is special to this card?

Samsung you use the 1750 Strap and all my samsung 470 4gb cards are doing 29.5 to 32 MH/s

i want to see those 32mhs can you share a screen ?

Oakey22

sr. member

Activity: 489

Merit: 322

Puzzled with this Rx480 Asus Dual 8Gb, same memory straps that came with my reference ones, did the same mod to the straps ( 1750 to 2000 ) and it keeps crashing.

Anyone think it could be a duff card?

cryptominer420

sr. member

Activity: 450

Merit: 255

Quote from: EuroCanuck on April 22, 2017, 06:01:40 PM

iv got a whole farm of only xfx black 470 4gbs and today just by chance ended up with a MSI 480 8gb with samsung. of course did a quick run stock to see,got 25mhs..tried 1500 strap as usual,couldnt build dag. memory at anything over 2000 it doesnt mine. did a quick look through this thread as iv been following hoping for better straps for my 470(elpidas) .anyway to the point,470s im getting 29.3/250 dual mining eth/pasl. this damn 480 now matter what i do i cant get it over 28!... tried this strap
777000000000000022CC1C00106A5D4DD0571016B90D060C0060070014051420FA8900A00300000 01011333DC0303A17
was posted on page34(not sure who created it,sorry,thanks tho!)...WHAT GIVES...is the msi gaming x just crap or am i missing something that is special to this card?

Samsung you use the 1750 Strap and all my samsung 470 4gb cards are doing 29.5 to 32 MH/s

EuroCanuck

newbie

Activity: 52

Merit: 0

iv got a whole farm of only xfx black 470 4gbs and today just by chance ended up with a MSI 480 8gb with samsung. of course did a quick run stock to see,got 25mhs..tried 1500 strap as usual,couldnt build dag. memory at anything over 2000 it doesnt mine. did a quick look through this thread as iv been following hoping for better straps for my 470(elpidas) .anyway to the point,470s im getting 29.3/250 dual mining eth/pasl. this damn 480 now matter what i do i cant get it over 28!... tried this strap
777000000000000022CC1C00106A5D4DD0571016B90D060C0060070014051420FA8900A00300000 01011333DC0303A17
was posted on page34(not sure who created it,sorry,thanks tho!)...WHAT GIVES...is the msi gaming x just crap or am i missing something that is special to this card?

Truthchanter

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Activity: 689

Merit: 253

Quote from: PcChip on April 22, 2017, 02:44:47 PM

dumb question to everyone running custom timings on 6-GPU rigs,

how are you making it easy to manage (for example, when you have to boot up multiple rigs)

are you mixing rx480's with hynix and elpida RAM in the same box, and using some tool (claymore commandline arguments, MSI Afterburner auto-overclock on boot) to get each card at the desired RAM frequency?

or are you keeping all elipda / hynix / micron cards together in separate boxes?

or can you hard-code the "GPU State 7" / "RAM State 1" frequencies in Polaris Editor, so each card takes care of itself?

or are you booting up each box, then manually tweaking the GPU/RAM frequencies and voltage with your desired tool (wattman, trixx, msi afterburner) and then just not touching it for months until it has to reboot again ?

Using WattTool o set individual mem clocks for my different gpus (some hynix, elpida, samsung mixed). You can make a .bat file to launch your miner and wattTool and to have wattTool load the profiles

PcChip

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Activity: 418

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Here's an odd one,

on my rx470 at 1250 core:

when running at 1995 MHz RAM, I get 830+ H/s
when running at 2000 Mhz RAM, it drops sharply to 640 H/s

but I'm running the same memory strap in both!

1750:
777000000000000022339D00CE515A3D9055111230CB440900400600740114206A8900A00200312 0100F292F94273116

2000:
777000000000000022339D00CE515A3D9055111230CB440900400600740114206A8900A00200312 0100F292F94273116

Edit: Well I'm thoroughly confused now,

I took the above bios and used Polaris Bios Editor to change the default RAM speed to 1995 so I don't have to manually set clocks when it boots.
At 1995 MHz it now gets 640 H/s, but when bumping it up to 2000 it gets 831 H/s (backwards of my results above)

Oakey22

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Activity: 489

Merit: 322

Quote from: laik2 on April 22, 2017, 04:06:42 PM

Quote from: Oakey22 on April 22, 2017, 02:39:45 PM

Quote from: laik2 on April 22, 2017, 08:10:25 AM

Quote from: Oakey22 on April 22, 2017, 07:39:05 AM

Laik, it's the 8Gb version i have. I do have the 4gb version too which i can clock to 30mhs no problem. Just the 8gb which is being a pain.

Strange...if its 8gb version default clock should be 2000Mhz...original 1750/2000 straps, please?

The 1750 strap is 777000000000000022CC1C00106A6D4DD0571016B90D060C006AE70014051420FA8900A00300000 01B11333DC0303A17
The 2000 strap is 777000000000000022CC1C0031F67E57F05711183FCFB60D006C070124081420FA8900A00300000 01E123A46DB354019

Thanks

I guess your memory timing menu contains 2 values, please check. Default clock of your GPU IF it is actually samsung has to be 2000Mhz.

Default clock is 1305/2000

I cant find any other 2000 strap timings in the hex, just that one.

This is the hex

40 0D 03 00 77 70 00 00 00 00 00 00 22 CC 1C 00 31 F6 7E 57 F0 57 11 18 3F CF B6 0D 00 6C 07 01 24 08 14 20 FA 89 00 A0 03 00 00 00 1E 12 3A 46 DB 35 40 19

1750 would be
98 AB 02 00 77 70 00 00 00 00 00 00 22 CC 1C 00 10 6A 6D 4D D0 57 10 16 B9 0D 06 0C 00 6A E7 00 14 05 14 20 FA 89 00 A0 03 00 00 00 1B 11 33 3D C0 30 3A 17

laik2

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Activity: 652

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Quote from: Oakey22 on April 22, 2017, 02:39:45 PM

Quote from: laik2 on April 22, 2017, 08:10:25 AM

Quote from: Oakey22 on April 22, 2017, 07:39:05 AM

Laik, it's the 8Gb version i have. I do have the 4gb version too which i can clock to 30mhs no problem. Just the 8gb which is being a pain.

Strange...if its 8gb version default clock should be 2000Mhz...original 1750/2000 straps, please?

The 1750 strap is 777000000000000022CC1C00106A6D4DD0571016B90D060C006AE70014051420FA8900A00300000 01B11333DC0303A17
The 2000 strap is 777000000000000022CC1C0031F67E57F05711183FCFB60D006C070124081420FA8900A00300000 01E123A46DB354019

Thanks

I guess your memory timing menu contains 2 values, please check. Default clock of your GPU IF it is actually samsung has to be 2000Mhz.

bardacuda

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BIOS editing would be the easiest way once you have all of your clocks/volts dialed in.

PcChip

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I see that uses "aticonfig" , I thought that stopped working with the latest drivers?

I tried going the linux route about 2-3 weeks ago and the only thing I found to change clock speed was "radeonjet" , and it maxed out at 2100 Mhz

I'm sticking to windows for now but thank you for sharing your script

nerdralph

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Activity: 588

Merit: 251

Here's the script I wrote to set clocks on my fglrx boxes.
https://gist.github.com/nerdralph/fbb03aa403b36b9d1d44e7263febd290

Topic: Custom RAM Timings for GPU's with GDDR5 - DOWNLOAD LINKS - UPDATED - page 28. (Read 155645 times)