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bokiminer
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February 28, 2020, 08:42:45 PM
Last edit: February 29, 2020, 04:01:42 PM by bokiminer |
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No you won't.. Flashing an XT vbios to a non XT card is the only thing that is possible. The onboard PSP prevents you from doing modifications. Also, memory timing changes on a Navi are like on an R7, useless. The only thing that would improve performance (particularly eth mining wise) would be to make it so that you extend your bandwith. Which means that you would need to change clocks + timings so it remains stable and because the PSP on board even has it's own PPtable, this is yet again not possible. Well, anything is possible, or almost :p But at this stage, i doubt anyone has been able to accomplish vbios edits for navi (basically bypass PSP). Cheers Hello Eliovp, actually it is possible. I successfully hex edited Sapphire 5700XT Pulse bios and copied straps from 1500+, also changed tRef (that gave me +1MH for ETH). I have used that modified atiflash from that link. No problems at all. And, of course, I used your tool to downvolt gpu and mem  P.S. I'm not that clever, I used instructions from some russian guys |
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xMindx163
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February 29, 2020, 02:34:56 PM |
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I confirm this. Unfortunately, the need to constantly flash the BIOS, after which the video card sometimes needs to be restored, significantly slows down the search for optimal timings.
Я пoдтвepждaю этo. К coжaлeнию, нeoбxoдимocть пocтoяннo пpoшивaть биoc, пocлe чeгo видeoкapтy инoгдa нyжнo вoccтaнaвливaть, cyщecтвeннo тopмoзит пoиcк oптимaльныx тaймингoв.
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arierep60
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March 01, 2020, 12:57:19 PM |
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Hello Eliovp, actually it is possible. I successfully hex edited Sapphire 5700XT Pulse bios and copied straps from 1500+, also changed tRef (that gave me +1MH for ETH). I have used that modified atiflash from that link. No problems at all. And, of course, I used your tool to downvolt gpu and mem P.S. I'm not that clever, I used instructions from some russian guys Hey! I also own a 5700 and i flashed a XT bios on it and copied 1500 straps to 2000. I'm getting 57.3 Mhs out of it, but I saw your post. You said you changed "tRef (that gave me +1MH for ETH)". Where can I find this value in BIOS? Can you help me? I dont use AMD MEm Tweak XL since I use HiveOS and I need to change that value in the BIOS itself. |
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bokiminer
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March 01, 2020, 03:15:27 PM |
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Hello Eliovp, actually it is possible....
Hey! I also own a 5700 and i flashed a XT bios on it and copied 1500 straps to 2000. I'm getting 57.3 Mhs out of it, but I saw your post. You said you changed "tRef (that gave me +1MH for ETH)". Where can I find this value in BIOS? Can you help me? I dont use AMD MEm Tweak XL since I use HiveOS and I need to change that value in the BIOS itself. Here you are, this is Micron 1500 Mhz strap (f0490202 in BIOS) example: 800900007D040000000000006A09000040020000142619133D00170006060002100000000508080 018000000218E06000000010101000101001C1800220B00000A0A0000B4000000B40000008A206C024C0000000A00040A130300011F2A0C00A500000002F 4130FA500000000000000 I changed 220B (tREF 2850) to E02E (tREF 12000) |
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Eliovp
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Huh?
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March 02, 2020, 12:39:39 PM |
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Hello Eliovp, actually it is possible....
Hey! I also own a 5700 and i flashed a XT bios on it and copied 1500 straps to 2000. I'm getting 57.3 Mhs out of it, but I saw your post. You said you changed "tRef (that gave me +1MH for ETH)". Where can I find this value in BIOS? Can you help me? I dont use AMD MEm Tweak XL since I use HiveOS and I need to change that value in the BIOS itself. Here you are, this is Micron 1500 Mhz strap (f0490202 in BIOS) example: 800900007D040000000000006A09000040020000142619133D00170006060002100000000508080 018000000218E06000000010101000101001C1800220B00000A0A0000B4000000B40000008A206C024C0000000A00040A130300011F2A0C00A500000002F 4130FA500000000000000 I changed 220B (tREF 2850) to E02E (tREF 12000) Yeah i know it's possible :p Already built a bios editor with encoding and decoding of those timings.  |
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xMindx163
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March 02, 2020, 01:34:36 PM |
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arierep60
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March 02, 2020, 06:22:44 PM |
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Here you are, this is Micron 1500 Mhz strap (f0490202 in BIOS) example: 800900007D040000000000006A09000040020000142619133D00170006060002100000000508080 018000000218E06000000010101000101001C1800220B00000A0A0000B4000000B40000008A206C024C0000000A00040A130300011F2A0C00A500000002F 4130FA500000000000000 I changed 220B (tREF 2850) to E02E (tREF 12000) Sadly I only got a bump of 0.15Mhs  |
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gdreporter
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March 03, 2020, 07:04:11 AM |
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Hi Eliovp
Do Amd mem tweaker improves the hash rate on radeon VII?
I tried a little bit and I don't see any difference.
Thanks
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lcbbcl
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March 04, 2020, 08:04:06 PM |
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Hi, is someone using linux? I was using windows with claymore miner and i decide to start using linux, but straps and rxboost is not working on linux.
Using windows without OC my rx580 can hash with 28+ Mh/s and if i OC my vram i get 32+.
I decide to replicate in linux the mem straps from windows when my gpu is underload, but not too much success if i change REF to 30 i can see a boost but changing RC CL etc no boost or the gpu will give me black screen.
Another strange behavior is when i OC my vram, for some reason when i oc my hash is less, its not about how much i OC the gpu ram , default is 2000mhz if i set 2001mhz is the same effect.
I appreciate any hint.
Thanks
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WARMANGALAXY
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March 06, 2020, 04:22:46 AM |
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Hi, ElioVP when a releases amdmemtweak Navi  |
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Eliovp
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Huh?
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March 06, 2020, 09:31:15 AM |
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Hi, ElioVP when a releases amdmemtweak Navi I can only do a release with softpowerplay support. Registers for the timings are obfuscated by the onboard PSP and so it's not possible to apply the same tricks. I might release a navi vbios editor with timings decoding/encoding option (as seen in screenshot above). But with the release of RBE, i'm not hurried :p Cheers! |
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souvenir12
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March 06, 2020, 10:07:28 AM |
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I might release a navi vbios editor with timings decoding/encoding option (as seen in screenshot above).
It would be great to start! |
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bokiminer
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March 06, 2020, 04:48:53 PM |
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Hey! I also own a 5700 and i flashed a XT bios on it and copied 1500 straps to 2000.
I'm getting 57.3 Mhs out of it, but I saw your post. You said you changed "tRef (that gave me +1MH for ETH)". Where can I find this value in BIOS?
Can you help me? I dont use AMD MEm Tweak XL since I use HiveOS and I need to change that value in the BIOS itself.
Can you tell me what memory temperature is on that XT-flashed 5700 when mining ETH ? Is it Sapphire 5700 Pulse ? |
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xMindx163
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March 06, 2020, 05:17:50 PM |
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REF 5700XT 1300/1770/750mV Tref 65535 55.2Mh tmem = 70-72C.
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bokiminer
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March 06, 2020, 06:40:32 PM |
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REF 5700XT 1300/1770/750mV Tref 65535 55.2Mh tmem = 70-72C.
Thanks |
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pcbacon
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March 06, 2020, 08:02:47 PM |
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Rx 5700 Asus Reference after copying 1500 timing straps I now get 57Mh PheonixMiner Ether on HiveOS with CORE 1375 CoreV 800 MEM915 Miner Reporting 118 watts
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deadsix
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March 07, 2020, 03:13:00 PM
Last edit: March 07, 2020, 07:05:18 PM by deadsix |
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Rx 5700 Asus Reference after copying 1500 timing straps I now get 57Mh PheonixMiner Ether on HiveOS with CORE 1375 CoreV 800 MEM915 Miner Reporting 118 watts
57 is too high, check for errors or bad shares. Theres no point running too high a clock / too tight a strap if you do not end up getting a benefit. For accurate measurements check poolside stats over 24 hours to get to know if a change (overclock or strap change) had any benefit. |
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track1911
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March 07, 2020, 04:53:48 PM |
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Rx 5700 Asus Reference after copying 1500 timing straps I now get 57Mh PheonixMiner Ether on HiveOS with CORE 1375 CoreV 800 MEM915 Miner Reporting 118 watts
57 is too high, check for errors or bad shares. Its not point running too high a clock / too tight a strap if you do not end up getting a benefit. For accurate measurements check poolside stats over 24 hours to get to know if a change (overclock or strap change) had any benefit. 57 is fine. 3 out of 4 of my cards are doing 59+ stable, confirmed hashrate at pool side. https://i.imgur.com/mbcOyQF.png |
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RentalService
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March 09, 2020, 02:47:04 PM |
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Cheers!
Anyone have results with Radeon VII?
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hustleman
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March 09, 2020, 03:37:59 PM |
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Rx 5700 Asus Reference after copying 1500 timing straps I now get 57Mh PheonixMiner Ether on HiveOS with CORE 1375 CoreV 800 MEM915 Miner Reporting 118 watts
57 is too high, check for errors or bad shares. Its not point running too high a clock / too tight a strap if you do not end up getting a benefit. For accurate measurements check poolside stats over 24 hours to get to know if a change (overclock or strap change) had any benefit. 57 is fine. 3 out of 4 of my cards are doing 59+ stable, confirmed hashrate at pool side.  What cards do you have? what overclocking and undervolting have you done to achieve that? |
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