lawrencelyl
Member
 Offline
Activity: 94
Merit: 10
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June 30, 2016, 12:21:27 AM |
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Anyhow, got a new rom, 1.5Mh speed increase per card for Ethereum at the same power usage  , in my case, that's 8Mh extra per rig which is a lot will release it soon! Greetings! Hi Eliovp, How's the status on the new rom? Just wondering... Oh yeah :p i'll share it tomorrow, forgot about that  Can't wait for tomorrow  |
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Docnaster
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June 30, 2016, 07:16:51 AM |
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Anyhow, got a new rom, 1.5Mh speed increase per card for Ethereum at the same power usage , in my case, that's 8Mh extra per rig which is a lot will release it soon! Greetings! Hi Eliovp, How's the status on the new rom? Just wondering... Oh yeah :p i'll share it tomorrow, forgot about that Can't wait for tomorrow It is already "tomorrow". But we have patience. |
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Eliovp (OP)
Legendary
Offline
Activity: 1050
Merit: 1294
Huh?
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June 30, 2016, 09:50:41 AM |
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Ok. New rom release, tighter timings. Tests have been done on 15.12 drivers which i find are the overall best drivers available. Also done a test on 16.4.1 and that's also ok. 16.1.1 & 16.6.* not. So if you have these, speed won't be the same. Before, per card @ core 800 , speed Ethereum: 22Mh Now, 23.5Mh. Power draw, exactly the same. Included a few roms in the package. Link: -Here-Greetings! |
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Next BillG
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June 30, 2016, 11:19:12 AM |
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Ok. New rom release, tighter timings. Tests have been done on 15.12 drivers which i find are the overall best drivers available. Also done a test on 16.4.1 and that's also ok. 16.1.1 & 16.6.* not. So if you have these, speed won't be the same. Before, per card @ core 800 , speed Ethereum: 22Mh Now, 23.5Mh. Power draw, exactly the same. Included a few roms in the package. Link: -Here-Greetings! Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference. How are the memory straps? Is that every 125 MHz or something else? |
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ldw-com
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June 30, 2016, 12:55:26 PM |
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Ok. New rom release, tighter timings. Tests have been done on 15.12 drivers which i find are the overall best drivers available. Also done a test on 16.4.1 and that's also ok. 16.1.1 & 16.6.* not. So if you have these, speed won't be the same. Before, per card @ core 800 , speed Ethereum: 22Mh Now, 23.5Mh. Power draw, exactly the same. Included a few roms in the package. Link: -Here-Greetings! Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference. How are the memory straps? Is that every 125 MHz or something else? 250-400-500 with latest rom |
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Next BillG
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June 30, 2016, 01:16:12 PM |
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Ok. New rom release, tighter timings. Tests have been done on 15.12 drivers which i find are the overall best drivers available. Also done a test on 16.4.1 and that's also ok. 16.1.1 & 16.6.* not. So if you have these, speed won't be the same. Before, per card @ core 800 , speed Ethereum: 22Mh Now, 23.5Mh. Power draw, exactly the same. Included a few roms in the package. Link: -Here-Greetings! Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference. How are the memory straps? Is that every 125 MHz or something else? 250-400-500 with latest rom So the 300 and 260 will use the same memory strap. When I change the frequency to 900/300 instead of 900/260, the hash rate will be 25MH/s instead of 26.4. Quite strange. |
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ldw-com
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June 30, 2016, 01:48:58 PM |
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Ok. New rom release, tighter timings. Tests have been done on 15.12 drivers which i find are the overall best drivers available. Also done a test on 16.4.1 and that's also ok. 16.1.1 & 16.6.* not. So if you have these, speed won't be the same. Before, per card @ core 800 , speed Ethereum: 22Mh Now, 23.5Mh. Power draw, exactly the same. Included a few roms in the package. Link: -Here-Greetings! Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference. How are the memory straps? Is that every 125 MHz or something else? 250-400-500 with latest rom So the 300 and 260 will use the same memory strap. When I change the frequency to 900/300 instead of 900/260, the hash rate will be 25MH/s instead of 26.4. Quite strange. Yeah that's because you're using 900 as core clock.. timing changes when using that core clock.. |
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Talan
Newbie
Offline
Activity: 16
Merit: 0
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June 30, 2016, 02:03:40 PM |
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Yeah that's because you're using 900 as core clock.. timing changes when using that core clock..
Hi, that's new to me! How can I calculate the mem clock from the core? I am currently using 850 core clock with the old rom. What's the recommended mem clock? And how does it change with the new rom? And thanks for sharing the new rom! I hope I'll find some time to test this weekend! Cheers, Talan |
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Zaducis
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June 30, 2016, 03:57:46 PM |
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Ok. New rom release, tighter timings. Tests have been done on 15.12 drivers which i find are the overall best drivers available. Also done a test on 16.4.1 and that's also ok. 16.1.1 & 16.6.* not. So if you have these, speed won't be the same. Before, per card @ core 800 , speed Ethereum: 22Mh Now, 23.5Mh. Power draw, exactly the same. Included a few roms in the package. Link: -Here-Greetings! Thanks for sharing. I run the miner at 900/260 MHz, hash rate is 26.4MHz. I changed to the latest BIOS. There is no difference. How are the memory straps? Is that every 125 MHz or something else? 250-400-500 with latest rom So the 300 and 260 will use the same memory strap. When I change the frequency to 900/300 instead of 900/260, the hash rate will be 25MH/s instead of 26.4. Quite strange. Yeah that's because you're using 900 as core clock.. timing changes when using that core clock.. Is that timing change due to the core frequency happens only in the Nano graphics cards? 260 and 300 are within 250-400. |
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lawrencelyl
Member
Offline
Activity: 94
Merit: 10
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July 01, 2016, 01:03:14 PM |
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With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM. Pretty close to Eliovp's claim |
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agente
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July 01, 2016, 01:09:37 PM |
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With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM. Pretty close to Eliovp's claim me too! Thanks Eliovp!! |
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RastoMan
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July 01, 2016, 01:11:13 PM |
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With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM. Pretty close to Eliovp's claim What is the hash rate, if you change to 900/260 MHz or 900/250 MHz or 900/300 MHz? |
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lawrencelyl
Member
Offline
Activity: 94
Merit: 10
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July 02, 2016, 04:50:18 AM |
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With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM. Pretty close to Eliovp's claim What is the hash rate, if you change to 900/260 MHz or 900/250 MHz or 900/300 MHz? I did try 900/300MHz for a while, got around 25.8MH/s |
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dumpida
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July 02, 2016, 07:45:58 AM |
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With this new ROM, I got 23.4MH/s @ 800MHz core + 250MHz RAM. Pretty close to Eliovp's claim What is the hash rate, if you change to 900/260 MHz or 900/250 MHz or 900/300 MHz? I did try 900/300MHz for a while, got around 25.8MH/s If you try 900/260, you might get 26.x MH/s. |
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Grim
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July 03, 2016, 05:42:21 PM |
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About Memory voltage for Tahiti. Any idea where to look at in the bios (hex edit) to change the mvddc (memory voltage) of Tahiti cards (7950,7970,280,280x). Some run at 1500mv and some run at 1600mv. (Afterburner lets you adjust only +/- 100mv mvddc). So eg. you can't set 1400mv for cards that come with 1600mv stock. A "standard" bios can be found here: https://www.techpowerup.com/vgabios/124572/ati-hd7950-3072-120706Sorry for the off topic post but maybe you can have a quick glance at it. |
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asdalani
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July 04, 2016, 12:56:58 PM |
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About Memory voltage for Tahiti. Any idea where to look at in the bios (hex edit) to change the mvddc (memory voltage) of Tahiti cards (7950,7970,280,280x). Some run at 1500mv and some run at 1600mv. (Afterburner lets you adjust only +/- 100mv mvddc). So eg. you can't set 1400mv for cards that come with 1600mv stock. A "standard" bios can be found here: https://www.techpowerup.com/vgabios/124572/ati-hd7950-3072-120706Sorry for the off topic post but maybe you can have a quick glance at it. I also want to know. I have quite a few 280X. I run them at 1250MHz. There is no need for the memory voltage to be above 1500mV. |
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ldw-com
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July 04, 2016, 01:27:29 PM |
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About Memory voltage for Tahiti. Any idea where to look at in the bios (hex edit) to change the mvddc (memory voltage) of Tahiti cards (7950,7970,280,280x). Some run at 1500mv and some run at 1600mv. (Afterburner lets you adjust only +/- 100mv mvddc). So eg. you can't set 1400mv for cards that come with 1600mv stock. A "standard" bios can be found here: https://www.techpowerup.com/vgabios/124572/ati-hd7950-3072-120706Sorry for the off topic post but maybe you can have a quick glance at it. I also want to know. I have quite a few 280X. I run them at 1250MHz. There is no need for the memory voltage to be above 1500mV. I don't have a tahiti based rom with lower memory voltage. Not even sure if that's even possible. probably same thing like with Hawaii, you don't lower the memory voltage but you lower the voltage given to the controller which gives the memory it's voltage. Anyhow, i do have a modified 280x rom with tighter timings and undervolted core voltage. Works perfectly over here at core 1100 mem 1500. Link: -Here-Flash at your own risk. I'm not responsible for any damage done.
If you can't afford to brick your card, then don't flash.
If you don't trust it, don't flash.If you're like me and you love to experiment, go ahead Greetings! |
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restless
Legendary
Offline
Activity: 1151
Merit: 1001
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July 07, 2016, 01:33:10 PM |
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Is this bios working on Fury (non-nano) also?
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Zitdadast
Sr. Member
Offline
Activity: 312
Merit: 250
LTC fan 4ever
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July 07, 2016, 05:00:15 PM |
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Is this bios working on Fury (non-nano) also?
It will not work on Fury, they have different number of Cores. Fury also has reference and non refererence cards. |
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sp_
Legendary
Offline
Activity: 2954
Merit: 1087
Team Black developer
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July 10, 2016, 07:46:45 PM |
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Has anyone tested the 390 cards? What is the best clocks and voltages.?
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