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Modded R9 390X BIOS for R9 290/290X (Updated 02/16/2016) - Page 37

post #361 of 1872
Quote:
Originally Posted by fyzzz View Post

Quote:
Originally Posted by grifers View Post

Hi. I have 2 reference cards, one with elpida memory and the other have hynix.

Sorry my language is not good biggrin.gif.
Okay i can try and make a bios for you and see if it works. I can send you pm when done
PM me the Elpida one too. I also have Elpida & Hynix cards. thumb.gif
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post #362 of 1872
Have you guys been finding that the modded BIOS' are improving performance per clock, but limiting your overall overclock ceiling compared to your original 290 BIOS??

So far the 390's are not breaking 1200MHz anywhere I've seen, however they are clocking higher on "lesser" volts than the older cards seem to, and I want to know if it's a characteristic of the "improved silicon" or if it's revisions to the tuning of the BIOS itself.
Edited by Agent Smith1984 - 8/21/15 at 12:04pm
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post #363 of 1872
Quote:
Originally Posted by Agent Smith1984 View Post

Have you guys been finding that the modded BIOS' are improving performance per clock, but limiting your overall overclock ceiling compared to your original 290 BIOS??

So far the 390's are not breaking 1200MHz anywhere I've seen, however they are clocking higher on "lesser" volts than the older cards seem to, and I want to know if it's a characteristic of the "improved silicon" or if it's revisions to the tuning of the BIOS itself.
The funny thing is that this bios still performs better even with 290 timings. Since i managed to get rid off the blackscreen issues my max is about 1245 (1200+ stable) and that is near what it can clock on a 290 bios. 1245/1750 gives about 15 000 gpu score in fs and that is far higher score than a 290 bios would give.
post #364 of 1872
Quote:
Originally Posted by fyzzz View Post

The funny thing is that this bios still performs better even with 290 timings. Since i managed to get rid off the blackscreen issues my max is about 1245 (1200+ stable) and that is near what it can clock on a 290 bios. 1245/1750 gives about 15 000 gpu score in fs and that is far higher score than a 290 bios would give.

What voltage and cooling to get the 1200 stable, and the 1245 bench clocks?
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post #365 of 1872
Quote:
Originally Posted by Agent Smith1984 View Post

What voltage and cooling to get the 1200 stable, and the 1245 bench clocks?
Watercooling,150mv for 1200mhz which gives about 1.25v under load (i know that's stable and haven't tested lower) and 200mv for 1245 which gives about 1.289v under load.
post #366 of 1872
Quote:
Originally Posted by fyzzz View Post

390test.zip 99k .zip file Here is a bios that i have been working on. It is the 390 bios modded for the 290, but what i have done is that i have copied over the 290 timings and the voltageobjectinfo table into the 390 bios and changed some voltages in Hawaii bios reader. This bios gives me the same idle and load voltage as a normal 290 bios. I thought i would upload the bios here if someone would want to take look. UPDATE:No blackscreen under high overclock, time to tweak it a little more and see where this leads.
Flashed & tested with only firestrike so far. Running same clocks I did get performance boost, graphics score higher than the score with Tri-X 290 BIOS. However, offset voltage I need is a lot higher though. I'm going to log voltage for comparing it with Tri-X 290 BIOS.

After I found stable base voltage for my card, can you help me increase the base voltage in BIOS?
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post #367 of 1872
I've been trying to keep up with this thread, but what is the general consensus?

If someone flashes the BIOS's in the first post will your cards still be stable or is it still a crapshoot?
   
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post #368 of 1872
Thread Starter 
Quote:
Originally Posted by sinnedone View Post

I've been trying to keep up with this thread, but what is the general consensus?

If someone flashes the BIOS's in the first post will your cards still be stable or is it still a crapshoot?

The general consensus is that these BIOS files run very well on REFERENCE or very close to reference PCBs. As such, flashing these BIOS files to any PCB that is custom / non-reference is a complete gamble and could potentially damage your card although this is only speculation. If you have a reference PCB card I would consider these files to be very safe, if not, proceed with caution even though you always should when flashing a non-stock BIOS.

- Insan1tyOne smile.gif
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post #369 of 1872
Quote:
Originally Posted by Insan1tyOne View Post

The general consensus is that these BIOS files run very well on REFERENCE or very close to reference PCBs. As such, flashing these BIOS files to any PCB that is custom / non-reference is a complete gamble and could potentially damage your card although this is only speculation. If you have a reference PCB card I would consider these files to be very safe, if not, proceed with caution even though you always should when flashing a non-stock BIOS.

- Insan1tyOne smile.gif


Thank you for that.

I personally have 2 saphire r9 290's. One reference and the other a tri-x that is reference pcb as well. When I have enough time i'll try to flash the bios files you posted to test. ITs probably going to take a while to collect all the data. Pretty much the reason for my questions, so my lazy butt doesn't have to put all the time in . lol
   
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post #370 of 1872
Quote:
Originally Posted by fyzzz View Post

390test.zip 99k .zip file Here is a bios that i have been working on. It is the 390 bios modded for the 290, but what i have done is that i have copied over the 290 timings and the voltageobjectinfo table into the 390 bios and changed some voltages in Hawaii bios reader. This bios gives me the same idle and load voltage as a normal 290 bios. I thought i would upload the bios here if someone would want to take look. UPDATE:No blackscreen under high overclock, time to tweak it a little more and see where this leads.

On which bios version/vendor are the timings and the voltageobjectinfo based?
I'm using 015.043.000.001 (Tri-X) at the moment, as i was having some problems with the 390 bios.
Can you make a 390 bios mod based of that bios?
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