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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 156

post #1551 of 3309
RS1288PW80.zip 108k .zip file Hey Chris, here's my stock bios... XFX RX480 RS..
BTW, asic is the measurement they do on the chips at the factory, to bin them. A higher asic means more efficient chip, less volts needed for stability. My chip is 65.1% and is crap, it can cause problems on the factory OC xfx 1288 mhz at 1.15v. So I don't know if you have some secret magic to fix that, but the most I can go is 1300 on 1.175. I don't know how to go higher on voltage, and don't think it will give much more stability!
post #1552 of 3309
Quote:
Originally Posted by robnitro View Post

RS1288PW80.zip 108k .zip file Hey Chris, here's my stock bios... XFX RX480 RS..
BTW, asic is the measurement they do on the chips at the factory, to bin them. A higher asic means more efficient chip, less volts needed for stability. My chip is 65.1% and is crap, it can cause problems on the factory OC xfx 1288 mhz at 1.15v. So I don't know if you have some secret magic to fix that, but the most I can go is 1300 on 1.175. I don't know how to go higher on voltage, and don't think it will give much more stability!

as was said before the power being supplied also effects ASIC readout because of Vdroop or dirty power makes the VRMs work harder to clean it up so this can give a false reading on ASIC quality I tested this several times it can make a large swing in the ASIC% I had a card I tested had a 70% ASIC on a crappy cheap EBAY special PSU when put on a good PSU went to over 80% ASIC quality if remember correctly was 82%.

I will also say the PSU having Vdroop or dirty power also causes a graphics card to run hotter same goes for hardrives / mobo and well mobo VRMs PSU has much more effect on things than people give them credit so I will say use a high quality PSU will offer better lifespan of all attached to it and will offer better performance.
Edited by rickcooperjr - 3/24/17 at 8:24pm
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post #1553 of 3309
@robnitro Yeah man here ya go. I had a XFX RX 460, had ASIC of 50%... haha... Was having issues at first, it was the VRM temperature. After modding them and dialing in the fan speed etc it was perfectly stable and performed great at 1250mhz core 1797mhz memory on unlocked bios.

Anyway here ya go man on the rx 480 xfx edition... DeLimited with a max temp of 67C, however shutdown is 88C and Hot spot temperature of 84C. Which gives higher performance. The Max Temp 67C will cool the Core & VRM for high stability. That 67C will give less performance than if set to 88C, but I think we ought to line ya up with High End 1333Mhz potential on a Cool Max Temp. Means it'll run All Out at 1333Mhz up until 67C, and dial back at that point. So for short 45 second to 1 1/2 minute benchmarks it'll scream. I would load up GPU-Z Render Test... Get the fan spun up after a minute or 2 and then run a benchmark...

These cards are like massive super powerful jet engines, that have to slowly spool up the turbine for a minute and then throw it at some benchmarks. Going straight into the benchmark and expecting huge numbers isn't possible. Gotta let it spool up for a minute or 2.

RobNitro-XFX-RX480-1333Mhz-DeLimited.zip 110k .zip file
Edited by chris89 - 3/24/17 at 8:57pm
post #1554 of 3309
Weird because I changed to a seasonic psu and asic didn't change... Maybe I need to check under load?

Chris, I don't see an attachment? Thanks a lot I'll try it out Sunday when I'm home
post #1555 of 3309
Yeah just uploaded it haha : yeah usually ASIC is set from first start up of the input power applied. If all cards had ASIC Calibration on 12.33 to even 13.33 volts input, the ASIC would be much better. ASIC is like the reading of the very first time it was powered on and all the chips took on energy. Which is important to energize all components with 12.33 to 13.33 volts upon initial startup resulting in superior ASIC calibration. I had at one time a PSU that outputted 13 volts input, and it was so amazing the performance you get out of the gpu. The idle was over 13 volts, and loaded out around 12.9 volts. The GTX 580 was clocking over 1000Mhz on the core with that PSU. Actually nearly 1100Mhz. Compared to barely pulling 900Mhz below 12 volts load.
Edited by chris89 - 3/24/17 at 9:04pm
post #1556 of 3309
Hey @chris89

Both are the same bios smile.gif One is from GPU-Z save file and the other is from atiflash save bios file.

Is this not what you wanted?
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post #1557 of 3309
@Beat Hahaha yeah man that's cool, what you left was just fine. Ellesmere.rom is the one I used.

I dialed in the bios for some real speed and stability...

Here it is again...

Beat_Ellesmere_DeLimit_1333Mhz_1797Mhz_Temp-Fan_Tune_1.zip 111k .zip file

The characteristics of these bios is, since there is a couple minute fan delay on spool up. Initially the cards will appear to perform poorly. However over time as the fan spools up and performs below the temp targets. Performance will begin to go up, and up, and up. Along with very consistent numbers.

Since Max Temp is 67C, the card will right away hit 67C and begin to throttle as the Fan slowly spools up to optimal over a couple minutes. At which point, the card will be allowed to sit in the highest performance state possible continuous.

Edited by chris89 - 3/24/17 at 9:19pm
post #1558 of 3309
@chris89 thanks so much dude smile.gif +rep!

Excuse my ignorance but what exactly did you do to the bios? As stated previously most of the guys undervolt, downclock core and raise the mem speed to 2000+Mhz for mining as it seems almost all RX series are happy with 2000+ for mining.
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post #1559 of 3309
@Beat Your welcome man, and Thank you.

Looking over it, the max Temp is 75C on that bios. Which will give higher performance than 67C. Will take a couple minutes to spool up fan and yield gains.

What I did was lower the Max Temp so to allow continuous never worry about stability. It will always work and won't crash. Since your running the RX 470 4GB which uses 1750mhz memory. It will gave huge errors at 1950mhz and barely no gains. So I set ram to 1797Mhz, which gives decent increase and no errors. Along with max core clock 1333Mhz. So if you want speed I can make it even faster. Try and it lmk how it performs compared to before...
Edited by chris89 - 3/24/17 at 9:31pm
post #1560 of 3309
Here I re-made all the BIOS for everyone with settings I found to work. At least I was able to complete the Tomb Raider 2013 Benchmark with 4k, no vsync, Ultimate default.

As you can see it gets faster over time. By the end of the 1st test, the fan had just began to spin up. By test 2 it was sort-of sped up, then 3, and 4 it was well sped up. Limited by my desired temperature targets. Max Temp of 80C, Shutdown 88C, Hot Spot 80C. These are the most important settings, along with Sensitivty. All other values are pretty well ignored. Except for Clocks & Voltage.

@robnitro & @Beat I lined you up with the same speed I'm running. Up to 1433Mhz bro! I found 1238mv boots and completes tests at 1433Mhz. Max RPM 3667rpm, Max Temp 80C, Shutdown 88C, Hot Spot 80C. Just as mine does, it'll shoot up to 80C while fans spool up and throttle. Until fans spool up after a couple minutes it'll perform like a champ.

@Pok123 I lined you up with an ultra nice bios. Max 1000Mhz core, 1500Mhz memory Delimited with max temp 67C, Shutdown 88C, Hot Spot 67C. Along with max fan RPM 2888rpm. Same here, it'll shoot up to 67C nearly instantly and throttle until fans spool up and maintain 1000Mhz DeLimited with no more than 67C.

Beat_RX470_1433Mhz_1797Mhz_DeLimit.zip 111k .zip file

RobNitro-XFX-RX480-1433Mhz-DeLimited.zip 110k .zip file

POK123_RX470_1000Mhz_1500Mhz_DeLimit.zip 110k .zip file




Edited by chris89 - 3/24/17 at 11:15pm
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