It seems many people are having issues modifying their straps with older GPUs using Hex Editor. I literally had about 50-60 PMs people BEGGING for me to modify their bios. I stopped doing it because it was time consuming. I will post the GPUs I currently have which I am using. I am getting very close to 90 Sol/s on each of my 7950 7970 280x using these straps with Claymore V4 using "-i 1". If you have a crappy CPU, you won't get 90 Sol/s, you might get between 75-80 Sol/s.
Just flash these straps at your own risk, if you have no idea what you are doing, then leave this thread now. I assume NO RESPONSIBILITY if you brick your GPU, messed up your memory chips, etc. YOU HAVE TO MAKE SURE YOU HAVE THE CORRECT MEMORY. ELPIDA WONT WORK WITH HYNIX STRAPS.
These straps are basically modified with these timings
20 4E 00 01 33 31 33 20 00 00 00 00 61 88 11 08 D0 54 07 04 0C 07 C1 00 00 21 60 00 22 AA 1C 00 02 00 14 20 8A 88 80 A1 00 00 01 20 03 02 06 07 09 08 0D 0B
40 9C 00 01 33 31 33 20 00 00 00 00 84 94 22 10 F0 54 09 06 0F 0B A2 01 00 23 80 00 22 AA 1C 00 12 01 14 20 8A 88 00 A0 00 00 01 20 06 05 0B 0C 11 0C 10 0D
80 38 01 01 55 51 33 20 00 00 00 00 E7 AC 35 20 50 55 0B 0D 1A 97 34 03 00 24 81 00 22 AA 1C 00 4B 06 14 20 9A 88 00 A0 00 00 01 20 0C 08 15 19 21 18 1B 11
A0 86 01 01 55 51 33 20 00 00 00 00 29 31 46 24 50 55 0C 0D 1C 18 A5 03 00 26 A1 00 22 AA 1C 00 4B 07 14 20 9A 88 00 A0 00 00 01 20 0D 0A 18 1B 25 19 1D 11
1C 19 02 01 55 51 33 20 00 00 00 00 29 B5 46 27 50 55 0C 0D 1E 99 05 04 00 26 A2 00 22 AA 1C 00 4B 08 14 20 AA 88 00 A0 00 00 01 20 0E 0A 1A 1E 28 1A 1F 11
78 5D 02 01 55 51 33 20 00 00 00 00 6B BD 57 2D 60 55 0D 0E 22 9C 96 04 00 28 C3 00 22 BB 1C 00 53 0A 14 20 BA 88 00 A0 00 00 01 20 10 0C 1E 22 2E 1D 23 12
10 98 02 01 77 71 33 20 00 00 00 00 8C C5 48 2F 60 55 0F 0F 25 1E 17 05 00 48 C4 00 22 CC 1C 00 5C 0B 14 20 4A 89 00 A0 00 00 01 20 12 0D 20 25 32 1F 26 13
30 E6 02 01 77 71 33 20 00 00 00 00 AD CD 49 2F 70 55 0F 10 29 21 98 05 00 4A E5 00 22 EE 1C 00 64 0D 14 20 5A 89 00 A0 00 00 01 20 14 0E 24 2A 38 22 2A 14
40 0D 03 01 77 71 33 20 00 00 00 00 CE 51 4A 2F 70 55 10 10 2B A2 18 06 00 4A E6 00 22 00 9D 00 64 0E 14 20 6A 89 00 A0 00 00 01 20 15 0F 27 2D 3C 23 2C 14
All credit goes to
http://www.overclock.net/t/1554360/tahiti-memory-timings-patch-for-hynix-vramI set the memory clock lower so you can increase into the higher straps if you aren't having stability problems.
The straps are
1375 MHz (1001-1375 MHz) - AFR 1000MHz Memory Timings, tight
1550 MHz (1376-1550 MHz) - AFR 1125MHz Memory Timings, tight
1700 MHz (1551-1700 MHz) - modified AFR 1250MHz Memory Timings by The Stilt, tight
1900 MHz (1701-1900 MHz) - modified AFR 1375MHz Memory Timings by The Stilt, tight
So start at 1400Mhz, if it works try 1575 and see which is better. Even try 1701 but I doubt it will be much faster.
ASUS R9 280X with HYNIX AFR memory
https://mega.nz/#!zwl1WDIa!kLFqZgCkMPiH1DOQe3Rg3FbQHpXZN-xq_CdmREBha04
Slight undervolt to 1.075V, 1070/1600.
MSI Might say 1375 for mem but its 1600 since I didn't update the previous DPM field in VBE.
ASUS 7970 with HYNIX MFR memory
Slight undervolt. 1100/1400.
Try running at
1575 Mem, I had one GPU lock up at that mem freq so I am leaving it lower at 1400.
https://mega.nz/#!m08FhDgL!D_AhbYCZfPNZTzXct7vU6u-DJpEEb_8mLMc0OtJfBl8
GIGABYTE 7950 with HYNIX AFR Memory
Slight undervolt. 1000/1400.
Try running at 1100/1575.
https://mega.nz/#!L5N1kIzQ!Cabi7Cg_wO91jMzk9lKmsB5pfZXNKTggBjMetNgZrIQ
GIGABYTE 7970 with HYNIX AFR Memory
Slight undervolt. 1050/1400.
Try running at 1100/1575.
https://mega.nz/#!Do1GlbYb!-fohVnHB2Fk04BNDTmznQwGovXWBX7fd8ZmlVG9aaw0
Gigabyte 280x and
Elpida EDW2032BBBG https://mega.nz/#!qtsjFboJ!W31t7WMaDZWMso2pYJb6vKk154YsI8LtfQjnHqpNH9Y
wat i have read, i cant flash 280 bios with 280x bios . both this is diffrent. do suggest me the method i need to use in order to flash my gpu
currently my gpu only get 45- 50 sol..
