Custom RAM Timings for GPU's with GDDR5 - DOWNLOAD LINKS - UPDATED - page 63.

kilo17

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aka "whocares"

Quote from: zigun on January 25, 2017, 12:43:45 AM

Quote from: Wolf0 on January 22, 2017, 12:53:34 AM

Quote from: kilo17 on January 21, 2017, 01:19:01 AM

Quote from: kilo17 on January 21, 2017, 12:41:33 AM

Quote from: Brewins on January 21, 2017, 12:24:56 AM

You guys are funny, I bet none of you have figured out all 20 of those timings. It is tough as shit to figure out- here's a challenge for you 3- if you kilo, jstefanop and eliovp can each post one of the following 3 timings from The Stilts Hyinx 1250 strap- I will then be a believer, otherwise I say you're all full of shit/

1 - tWR
2 - tWTR
3 - tRCDR

Good luck

- that's funny. I will do one- how about tWTR - it really doesn't matter to me

I changed my mind, I am going to post the tRTW to prevent giving away to much info - the tRTW in the following Stilt strap is 21

77 71 33 20 00 00 00 00 08 39 47 2A 50 55 0C 0B 24 20 45 04 00 46 C4 00 22 BB 1C 00 5C 0B 14 20 4A 89 00 A0 00 00 01 20 12 0C 21 1E 51 19 26 13

tRCDR - 0xE.

Correct me if I wrong, based on compare of custom straps from The Stilt with original one. Timing info contain in the string 77 71 33 20 00 00 00 00 08 39 47 2A and possible it's magic 3 registers one of them last or first is MC_SEQ_RAS_TIMING

MC_SEQ_RAS_TIMING is a bunch of timings, not just 1.

Wolf0

member

Activity: 81

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It was only the wind.

Quote from: Metroid on January 24, 2017, 09:36:19 AM

I had great results few months ago, making hynix to have elpida performance in few algo, + hynix had an even great performance with my own custom latency numbers.

I've gotten over 900H/s stable on XMR with my 470 4G - so yeah, it's pretty nice.

kilo17

legendary

Activity: 980

Merit: 1001

aka "whocares"

Quote from: Metroid on January 24, 2017, 07:15:58 PM

Quote from: zigun on January 24, 2017, 12:26:08 PM

Quote from: Metroid on January 24, 2017, 09:36:19 AM

I had great results few months ago, making hynix to have elpida performance in few algo, + hynix had an even great performance with my own custom latency numbers.

How many hours did u spend? Any advices? )

I was not happy with the hynix performance on few algo so i decided to create my own, I spent 15 minutes. I do have a PHD in computer Science.

Quote from: Wolf0 on January 24, 2017, 12:59:45 PM

Quote from: Metroid on January 24, 2017, 09:36:19 AM

I had great results few months ago, making hynix to have elpida performance in few algo, + hynix had an even great performance with my own custom latency numbers.

I've gotten over 900H/s stable on XMR with my 470 4G - so yeah, it's pretty nice.

If you got that at 0.850v then it was a miracle. All my cards use 0.850v and I could not achieve that.

Couple of questions -
1- Are you Hex editing or using Polaris Bios Editor?
2- How many watts are you pulling at the wall (no one cares about the 0.85v because it doesn't mean much)
3- What changes did you make to the latency, was it tRCD, tRCDW, tRC, tWTR .......etc?

Thanks

zigun

newbie

Activity: 21

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Quote from: Wolf0 on January 22, 2017, 12:53:34 AM

Quote from: kilo17 on January 21, 2017, 01:19:01 AM

Quote from: kilo17 on January 21, 2017, 12:41:33 AM

Quote from: Brewins on January 21, 2017, 12:24:56 AM

You guys are funny, I bet none of you have figured out all 20 of those timings. It is tough as shit to figure out- here's a challenge for you 3- if you kilo, jstefanop and eliovp can each post one of the following 3 timings from The Stilts Hyinx 1250 strap- I will then be a believer, otherwise I say you're all full of shit/

1 - tWR
2 - tWTR
3 - tRCDR

Good luck

- that's funny. I will do one- how about tWTR - it really doesn't matter to me

I changed my mind, I am going to post the tRTW to prevent giving away to much info - the tRTW in the following Stilt strap is 21

77 71 33 20 00 00 00 00 08 39 47 2A 50 55 0C 0B 24 20 45 04 00 46 C4 00 22 BB 1C 00 5C 0B 14 20 4A 89 00 A0 00 00 01 20 12 0C 21 1E 51 19 26 13

tRCDR - 0xE.

Correct me if I wrong, based on compare of custom straps from The Stilt with original one. Timing info contain in the string 77 71 33 20 00 00 00 00 08 39 47 2A and possible it's magic 3 registers one of them last or first is MC_SEQ_RAS_TIMING

Metroid

sr. member

Activity: 2142

Merit: 353

Xtreme Monster

Quote from: zigun on January 24, 2017, 12:26:08 PM

Quote from: Metroid on January 24, 2017, 09:36:19 AM

I had great results few months ago, making hynix to have elpida performance in few algo, + hynix had an even great performance with my own custom latency numbers.

How many hours did u spend? Any advices? )

I was not happy with the hynix performance on few algo so i decided to create my own, I spent 15 minutes. I do have a PHD in computer Science.

Quote from: Wolf0 on January 24, 2017, 12:59:45 PM

Quote from: Metroid on January 24, 2017, 09:36:19 AM

I had great results few months ago, making hynix to have elpida performance in few algo, + hynix had an even great performance with my own custom latency numbers.

I've gotten over 900H/s stable on XMR with my 470 4G - so yeah, it's pretty nice.

If you got that at 0.850v then it was a miracle. All my cards use 0.850v and I could not achieve that.

dallase

member

Activity: 129

Merit: 10

Quote from: Wolf0 on January 24, 2017, 12:59:45 PM

Quote from: Metroid on January 24, 2017, 09:36:19 AM

I had great results few months ago, making hynix to have elpida performance in few algo, + hynix had an even great performance with my own custom latency numbers.

I've gotten over 900H/s stable on XMR with my 470 4G - so yeah, it's pretty nice.

I assume thats overclock + custom timings?

Whats best rate on underclock/undervolt + custom timings?

Wolf0

member

Activity: 81

Merit: 1002

It was only the wind.

Quote from: zigun on January 24, 2017, 08:46:40 AM

Start digging this stuff too, is to hard to find any timing information in GDDR5 specification reference material?

The Mode Registers help.

EuroCanuck

newbie

Activity: 52

Merit: 0

sorry to sound like a begger but i would really love some timings for a rx470 4g with elpida if your willing to share.

zigun

newbie

Activity: 21

Merit: 0

Quote from: Metroid on January 24, 2017, 09:36:19 AM

I had great results few months ago, making hynix to have elpida performance in few algo, + hynix had an even great performance with my own custom latency numbers.

How many hours did u spend? Any advices? )

Wolf0

member

Activity: 81

Merit: 1002

It was only the wind.

Quote from: kilo17 on January 21, 2017, 01:19:01 AM

Quote from: kilo17 on January 21, 2017, 12:41:33 AM

Quote from: Brewins on January 21, 2017, 12:24:56 AM

You guys are funny, I bet none of you have figured out all 20 of those timings. It is tough as shit to figure out- here's a challenge for you 3- if you kilo, jstefanop and eliovp can each post one of the following 3 timings from The Stilts Hyinx 1250 strap- I will then be a believer, otherwise I say you're all full of shit/

1 - tWR
2 - tWTR
3 - tRCDR

Good luck

- that's funny. I will do one- how about tWTR - it really doesn't matter to me

I changed my mind, I am going to post the tRTW to prevent giving away to much info - the tRTW in the following Stilt strap is 21

77 71 33 20 00 00 00 00 08 39 47 2A 50 55 0C 0B 24 20 45 04 00 46 C4 00 22 BB 1C 00 5C 0B 14 20 4A 89 00 A0 00 00 01 20 12 0C 21 1E 51 19 26 13

tRCDR - 0xE.

Metroid

sr. member

Activity: 2142

Merit: 353

Xtreme Monster

I had great results few months ago, making hynix to have elpida performance in few algo, + hynix had an even great performance with my own custom latency numbers.

Eliovp

legendary

Activity: 1050

Merit: 1293

Huh?

Quote from: Wolf0 on January 24, 2017, 08:59:28 AM

Quote from: zigun on January 24, 2017, 08:46:40 AM

Start digging this stuff too, is to hard to find any timing information in GDDR5 specification reference material?

The Mode Registers help.

For example

zigun

newbie

Activity: 21

Merit: 0

Start digging this stuff too, is to hard to find any timing information in GDDR5 specification reference material?

Wolf0

member

Activity: 81

Merit: 1002

It was only the wind.

Quote from: kilo17 on January 21, 2017, 05:41:11 AM

Quote from: Eliovp on January 21, 2017, 04:52:59 AM

This is starting to become: "who has the biggest ****"..

Mine isn't, it's probably thickest Cheesy

LOL --

I am actually more interested in HBM than GDDR5 but thats a different thread at a later date. Back on track, some of the timings are definitely out of whack, I hope to have some shots to put up tomorrow of improvements but it is a painstaking process with Samsung

I know the formats of HBM and HBM2. However, here's a challenge-response.

MC_SEQ_RAS_TIMING: 0x1076c00

What is the value of tFAW32? Both the raw representation, and what it truly means. It's already in little endian.

Yes, I also made a deliberate mistake here.

jstefanop

legendary

Activity: 2174

Merit: 1401

I think I'm just going to post source to decoding app I built...mostly because I think the community will be able to figure out optimal values far quicker than the three of us Tongue

Im kind of tired of iterating over the hundreds of timing possibilities (and thats just on one algo).

kilo17

legendary

Activity: 980

Merit: 1001

aka "whocares"

Quote from: Wolf0 on January 21, 2017, 11:51:38 PM

Quote from: kilo17 on January 21, 2017, 05:41:11 AM

Quote from: Eliovp on January 21, 2017, 04:52:59 AM

This is starting to become: "who has the biggest ****"..

Mine isn't, it's probably thickest Cheesy

LOL --

I am actually more interested in HBM than GDDR5 but thats a different thread at a later date. Back on track, some of the timings are definitely out of whack, I hope to have some shots to put up tomorrow of improvements but it is a painstaking process with Samsung

I know the formats of HBM and HBM2. However, here's a challenge-response.

MC_SEQ_RAS_TIMING: 0x1076c00

What is the value of tFAW32? Both the raw representation, and what it truly means. It's already in little endian.

I like a challenge- maybe you can step up and answer one of Brewins questions, it appears the others do not want to play (or cannot play -lol) -

I will take a gander at the challenge later tonight. I am looking into what appears to be an error in the 1625 Strap for Samsung Memory the tRFC. Either I have made an error or AMD made an error. All the other straps check out except that one value. If you have some input into that particular value I would appreciate it. Not sure but it appears that value is the default hex code from AMD. It seems to work in the strap.

ps- I know it is the Four Active Window and is the time word lines can be opened in four banks

kilo17

legendary

Activity: 980

Merit: 1001

aka "whocares"

Quote from: Eliovp on January 21, 2017, 04:52:59 AM

This is starting to become: "who has the biggest ****"..

Mine isn't, it's probably thickest Cheesy

LOL --

I am actually more interested in HBM than GDDR5 but thats a different thread at a later date. Back on track, some of the timings are definitely out of whack, I hope to have some shots to put up tomorrow of improvements but it is a painstaking process with Samsung

Eliovp

legendary

Activity: 1050

Merit: 1293

Huh?

This is starting to become: "who has the biggest ****"..

Mine isn't, it's probably thickest Cheesy

Wolf0

member

Activity: 81

Merit: 1002

It was only the wind.

Quote from: jstefanop on January 20, 2017, 01:03:22 AM

Quote from: kilo17 on January 19, 2017, 07:35:57 PM

Quote from: nerdralph on January 19, 2017, 06:32:42 PM

Wolf commented in a thread several weeks ago that he has made fully-custom straps.

He may have, I do not know. I know of a few people that have made custom straps by changing out various HEX values and have gotten a boost. I think those results will be less than if someone is changing all 16-20 values. I did a fair amount of RAM tuning when I was overclocking with DI/LN2 and changing one number can impact the other values significantly.

Yes he has...I told him how to do it Wink

You only know the mode register values, I know ALL of them.

kilo17

legendary

Activity: 980

Merit: 1001

aka "whocares"

Quote from: Wolf0 on January 21, 2017, 03:58:44 AM

Quote from: jstefanop on January 20, 2017, 01:03:22 AM

Quote from: kilo17 on January 19, 2017, 07:35:57 PM

Quote from: nerdralph on January 19, 2017, 06:32:42 PM

Wolf commented in a thread several weeks ago that he has made fully-custom straps.

He may have, I do not know. I know of a few people that have made custom straps by changing out various HEX values and have gotten a boost. I think those results will be less than if someone is changing all 16-20 values. I did a fair amount of RAM tuning when I was overclocking with DI/LN2 and changing one number can impact the other values significantly.

Yes he has...I told him how to do it Wink

You only know the mode register values, I know ALL of them.

Me too

Topic: Custom RAM Timings for GPU's with GDDR5 - DOWNLOAD LINKS - UPDATED - page 63. (Read 155645 times)