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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 145

post #1441 of 3353
PLEASE HELP, HOW TO EDIT MEMORY STRAP TIMINGS ON RX 480 8GB MICRON CARDS, they are clocked 1750MHz by default... I was very surprised to see 8GB Cards clocked at 1750MHz on RX480 like *** right?!!

Anyways in Polaris bios editor, the timing fields don't show MHz's they show a strange number. I am lost.... Please check the attached screenshot frown.gif

post #1442 of 3353
Quote:
Originally Posted by ekoaja View Post


Where did you find these infos? Do u have any info about the other bytes?

Also shuldn't tRC = tRAS + tRP... and if it's true... why (st line) 44 = ?? + A4 (impossible) ???
Edited by Vento041 - 3/6/17 at 5:35am
post #1443 of 3353
Thread Starter 
Quote:
Originally Posted by Flickspeed View Post

PLEASE HELP, HOW TO EDIT MEMORY STRAP TIMINGS ON RX 480 8GB MICRON CARDS, they are clocked 1750MHz by default... I was very surprised to see 8GB Cards clocked at 1750MHz on RX480 like *** right?!!

Anyways in Polaris bios editor, the timing fields don't show MHz's they show a strange number. I am lost.... Please check the attached screenshot frown.gif

Post your bios here. I'll help you
post #1444 of 3353
Quote:
Originally Posted by Vento041 View Post

Where did you find these infos? Do u have any info about the other bytes?

Also shuldn't tRC = tRAS + tRP... and if it's true... why (st line) 44 = ?? + A4 (impossible) ???

Tried to verify his info with what you can get of information from the bitcoin thread. There are some discrepancies at least on Hynix ICs (every IC model has small variations in the order of the hex values).

I suggest you to do research on the bitcoin thread. Sadly most of the time the people on that thread are more prone to do a big dick contest to who knows most of AMD's GDDR5 timing configurations and how to read values in binary or hex than what they try to give help to laymans like us.
post #1445 of 3353
Quote:
Originally Posted by generaleramon View Post

Post your bios here. I'll help you

I am unable to upload the file here "AJAX response unable to be parsed as valid JSON object." error.

Here is the link

http://www.filedropper.com/default_8
post #1446 of 3353
Thread Starter 
Quote:
Originally Posted by Flickspeed View Post

I am unable to upload the file here "AJAX response unable to be parsed as valid JSON object." error.

Here is the link

http://www.filedropper.com/default_8

Samsung K4G80325FB
Frequency|ID|Latency
48 E8 01 01 33 30 00 00 00 00 00 00 22 CC 1C 00 4A 49 49 37 B0 57 0C 12 29 4A 94 08 00 46 A7 00 72 0E 14 20 7A 89 00 A0 00 00 00 00 13 0B 25 2D 89 25 2A 14 1250Mhz
1C 19 02 01 33 30 00 00 00 00 00 00 22 CC 1C 00 8C 51 5A 3D C0 57 0D 13 2D CB 74 09 00 48 C7 00 7A 00 14 20 7A 89 00 A0 02 00 00 00 15 0D 29 31 97 28 2E 15 1375Mhz
F0 49 02 01 55 50 00 00 00 00 00 00 22 CC 1C 00 AD 59 5B 41 C0 57 0E 14 B0 0B 45 0A 00 68 C7 00 03 01 14 20 FA 89 00 A0 03 00 00 00 17 0E 2B 34 A4 2A 31 16 1500Mhz
C4 7A 02 01 55 50 00 00 00 00 00 00 22 CC 1C 00 CE 61 6C 47 D0 57 0F 15 B4 8C 25 0B 00 6A E7 00 0B 03 14 20 FA 89 00 A0 03 00 00 00 19 0F 2F 39 B2 2D 35 17 1625Mhz
98 AB 02 01 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 1750Mhz
40 0D 03 01 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 2000Mhz

Micron MT51J256M32HF
Frequency|ID|Latency
48 E8 01 02 77 70 00 00 00 00 00 00 22 AA 1C 00 AD 49 49 32 70 55 0E 12 AE 8A 94 08 00 66 A3 00 64 00 14 20 BA 89 00 A8 02 00 00 00 13 0E 20 25 89 24 2F 13 1250Mhz
1C 19 02 02 77 70 00 00 00 00 00 00 22 AA 1C 00 EF 51 5A 37 90 55 0F 14 B2 0B 75 09 00 68 C4 00 74 02 14 20 CA 89 C0 A8 02 00 00 00 15 10 23 28 97 28 33 15 1375Mhz
A4 2C 02 02 77 70 00 00 00 00 00 00 22 AA 1C 00 10 D6 5A 39 90 55 0F 14 34 4C C5 09 00 68 C4 00 74 03 14 20 CA 89 00 A9 02 00 00 00 16 11 24 29 9C 29 35 15 1425Mhz
F0 49 02 02 77 70 00 00 00 00 00 00 22 AA 1C 00 31 5A 5B 3C A0 55 0F 15 B6 8C 45 0A 00 68 C4 00 7C 04 14 20 CA 89 80 A9 02 00 00 00 17 12 26 2B A4 2B 37 15 1500Mhz
C4 7A 02 02 77 70 00 00 00 00 00 00 22 AA 1C 00 73 62 6C 41 B0 55 10 16 BA 0D 26 0B 00 6A E6 00 04 06 14 20 EA 89 40 AA 03 00 00 00 19 14 29 2E B2 2E 3B 16 1625Mhz
98 AB 02 02 77 70 00 00 00 00 00 00 22 AA 1C 00 B5 6A 6D 46 C0 55 10 17 BE 8E 06 0C 00 6A E6 00 0C 08 14 20 EA 89 00 AB 03 00 00 00 1B 16 2C 31 C0 31 3F 17 1750Mhz
6C DC 02 02 99 90 00 00 00 00 00 00 22 AA 1C 00 D6 72 7E 4B C0 55 12 18 C3 0F E7 0C 00 6B 06 01 15 0A 14 20 EA 89 C0 AB 03 00 00 00 1D 17 2F 35 CE 34 44 18 1875Mhz
40 0D 03 02 99 90 00 00 00 00 00 00 22 AA 1C 00 F7 F6 7E 4F D0 55 13 19 C6 50 B7 0D 00 6C 06 01 1D 0C 14 20 EA 89 80 AC 03 00 00 00 1E 18 32 38 DB 36 47 19 2000Mhz
post #1447 of 3353
Thanks, but how do I use this info? I was unable to match any of those lines so far
post #1448 of 3353
Thread Starter 
Quote:
Originally Posted by Flickspeed View Post

Thanks, but how do I use this info? I was unable to match any of those lines so far

What do you want to edit in the bios? I have posted the hex values of you bios

Example:
40 0D 03 02 99 90 00 00 00 00 00 00 22 AA 1C 00 F7 F6 7E 4F D0 55 13 19 C6 50 B7 0D 00 6C 06 01 1D 0C 14 20 EA 89 80 AC 03 00 00 00 1E 18 32 38 DB 36 47 19 2000Mhz

40 0D 03 > inverted is 03 0D 40 > converted in decimal is 20000 > so 2000Mhz strap

02 is the mem ID. In your bios 02 is for Micron set of timings. 01 point to the samsung set.

99 90 00 00 00 00 00 00 22 AA 1C 00 F7 F6 7E 4F D0 55 13 19 C6 50 B7 0D 00 6C 06 01 1D 0C 14 20 EA 89 80 AC 03 00 00 00 1E 18 32 38 DB 36 47 19 are the timings of this strap. Like 9-9-9-24 ecc ecc in your system ram.
Edited by generaleramon - 3/7/17 at 6:22am
post #1449 of 3353
Quote:
Originally Posted by generaleramon View Post

What do you want to edit in the bios? I have posted the hex values of you bios

Example:
40 0D 03 02 99 90 00 00 00 00 00 00 22 AA 1C 00 F7 F6 7E 4F D0 55 13 19 C6 50 B7 0D 00 6C 06 01 1D 0C 14 20 EA 89 80 AC 03 00 00 00 1E 18 32 38 DB 36 47 19 2000Mhz

40 0D 03 > inverted is 03 0D 40 > converted in decimal is 20000 > so 2000Mhz strap

02 is the mem ID. In your bios 02 is for Micron set of timings. 01 point to the samsung set.

99 90 00 00 00 00 00 00 22 AA 1C 00 F7 F6 7E 4F D0 55 13 19 C6 50 B7 0D 00 6C 06 01 1D 0C 14 20 EA 89 80 AC 03 00 00 00 1E 18 32 38 DB 36 47 19 are the timings of this strap. Like 9-9-9-24 ecc ecc in your system ram.

Anyways, I used HxD to edit the HEX Values of the bios file. Specifically, I edited as follows:

Searched for 2000MHz Values and replaced with 1750 Values
Searched for 1875MHz Values and replaced with 1750 Values
Searched for 1750MHz Values and replaced with 1625 Values
Searched for 1625MHz Values and replaced with 1500 Values

After this I opened the file with Polaris Bios Editor and SAVED the file.

I flashed the file as usual with -f -p command.

Video card failed to POST after this procedure.

Currently reverted to original bios and it works again.

What did I do wrong?
post #1450 of 3353
I think I also copy pasted the straps LOL. Will try again without touching the straps.
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