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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 180

post #1791 of 3466
What with my issue, Chris89?
Quote:
Originally Posted by chris89 View Post

What method are you using to find the offset locations in hex? I can help you.
post #1792 of 3466
Not sure if this has came up in the thread before, maybe someone already has the answer...
Since my GPU fans are controlled from a motherboard header, is there a way to permanently set fans to off in the ROM? Maybe any of you have any links to start reading on the issue?
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post #1793 of 3466
@chris89

Let's say that RX480 isn't the most powerful video card and isn't able to use the full standard of PCI-E 2.0. I was looking for some proof of that. I found few articles on techpowerup! and guru3d and very interresting youtube movie which show that discrepancie is marginal:

https://www.techpowerup.com/reviews/AMD/R9_Fury_X_PCI-Express_Scaling/8.html
https://www.guru3d.com/articles_pages/pci_express_scaling_game_performance_analysis_review,10.html
https://www.youtube.com/watch?v=LJVXhwTv3RU

so i'm sure that PCI-E 2.0 isn't limiting your card more than 3% according to various tests which has been conducted, probably less.

It seems that you can simulate PCI-E 2.0, doesn't matter what kind of CPU you have or results are the same for different reason.

I reed somwhere that ASIC is strongly related to main ATX PSU. If that would be related to temperature of video card's VRM you should receive higher quality percetage just after the start of the computer when temperature is low. Otherhand i saw a lot of reports that ASIC has incresed after PSU replacment.

@Loladinas

Trixx give a possiblity to put 0% on Fans. What will happend if you mod the bios in polaris and set very high max temp and minimum Fans for 0? and Max to 0%?
Edited by Na1l - 4/4/17 at 12:30pm
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post #1794 of 3466
@Na1l
Yeah, I know I can do it with software, I'd just like a more permanent solution, thus BIOS editing smile.gif
I tried setting all the temps to 90C, but that just bricked my card, so yeah... I'm not great at this. I remember seeing something like that on some other forum, the guy had made a BIOS for LN2, and it had fan control removed, but I think it also had temp reporting removed, and I still need to keep that. Can't find the darn thing now.

As for changing ASIC quality... I could probably check that, as I've recently switched the PSU in my ITX system from a HX650 to a SF600.
Edited by Loladinas - 4/4/17 at 12:37pm
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post #1795 of 3466
@Na1l Thank you I appreciate the input for sure. I have not seen a proper PCIe 2.0 vs PCIe 3.0 comparison. The proper way to compare is to use the Same exact cpu, same exact memory modules on two boards of the same manufacturer for the same CPU compatibility. That's the only way to compare. Comparing by setting a PCIe 3.0 board to 2.0 is just software. It can't shut down as much data. Unless they compare AIDA64 GPGPU and then I would believe it if in fact the memory read & write show properly a decrease of the theoretical amount of 60%. I have seen this and it is truly half PCIe 2.0 vs 3.0 on PCIe memory read & write.

Yeah that helps. ASIC is based on 12 volts. So basically it's about how well the card handles 12 volts at idle and load. My PSU needs to be replaced. 11.875v idle and could see below 11.4 volts load. Which can be heard by the fan of the card when going under load. Maybe if I send off my 1kw to have it tweaked to 13 to 13.5 volts, I would never droop below 12 volts or even 12.5 volts. This is possible through attenuating the microfarad resistance of the capacitors within the psu. I had a cap replaced with a different rating and my 12 volt rail went up and drooped less.

I won't comment on anything else but right on brother! thumb.gif

Here's my new results, nothing special at all...

PCIe 2.0 results here : GPU memory read & write only 6GB/s vs PCIe 3.0 12GB/s+.

1415Mhz core : stock 65288
2266Mhz memory : stock 1000mv
Powerlimit : DeLimited as all my bios are
88C Max 88C Shutdown 88C Hotspot


Edited by chris89 - 4/4/17 at 1:05pm
post #1796 of 3466
@Loladinas

Did you try to analyse some bios from Semi-Passive cards? Sapphire Nitro+ for example?

@chris89

The key word in your results is "CUSTOM RUN" which makes your results incomparible. Show me some validated results with such score which will be the proof of comparible setup with Tesselation, AA, AF and all other fireworks which can be turned off.

Edit

i didn't notice the titles above, still valid score pls

How long your card is able to sustain such clocks before start to throttle? out of curiosity.

Reply for your edit -> i gave you proofs that PCI-E 2 or 3 doesn't matter. I think it will be very hard to find motherboards which the same except PCI-E standards. 50% of maximal bandwidth, maximal. So if you do not use more than a half of PCI-E 3.0 bandwidth capacity such factor doesn't metter and here you have such situation.
Edited by Na1l - 4/4/17 at 1:15pm
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post #1797 of 3466
I made a moderate bios and it's working well. Seeing my scores in 3dmark, I'm fine with not messing with TDP as my card seems to heat up too much past 20% PT anyway. I like PT because it can make the card more efficient under high loads.

I made the upper states closer and don't use wattman except to set the PT +20%. If I mess with the clocks or voltage , it makes the card slow. Seems to be some bug in the latest driver.

Memory I set to 900mv in wattman, because 2050 at ubermix v2 works fine My memory doesnt go much further even if I run 1000mv.

post #1798 of 3466
I'm not sure what exactly I'm doing wrong here... No matter if I get the BIOS off my card using ATIWinFlash or GPU-Z, it's always 256KB. The only BIOSes I can even get to post are my stock BIOS and the 2 techpowerup's database that claim to be from the same card. I've got an XFX GTR RX 480 8GB, it's the 1338MHz core one. tyranids_bioses.zip 324k .zip file

When I compare these in notepad++ hex editor compare, they are all 3 wildly different. Massive portions of them are not the same at all. Also for any of these BIOSes I start with, the card will accept no changes. If I mod the stock.rom BIOS, it will not post at all, and if I mod either of the other 2 I get to Windows fine, except that it resets my resolution down to 1024x768, and refuses to put my 144Hz monitor above 64Hz. GPUz also reads core/memory clocks as 0/0, and no program except (thankfully) ATIWinFlash even seems to recognize that I have a graphics card. GPU accelerated stuff will crash instantly telling me no GPU detected. I'm using a Ryzen processor with the monitor connected straight to GPU, so it's not like I'm bricking my card and mobo is defaulting back to integrated graphics.

I am very confused by this tool and don't know what I have to do really. Do we still need to patch the driver with the pixel clock patch utility? I've tried that in the past but it made no difference. Also, when I open my stock.rom in polaris bios editor 1.4, this is what I see:


As you can see, the memory timings section is all screwed up, and for some reason this stock bios has a default memory clock of 601. The 2 downloaded from techpowerup both open and appear like this:



Any help would be much appreciated =D. I'm not sure what to do really.... All I want is to try the default 1750 timings for my 2000 MHz memory clock and also experiment with raising the power limit. Is there some basic thing I'm missing here?
post #1799 of 3466
You have to run the patcher for everything, not just the bios option. Redownload it and run the general patcher. It works that way only with the new drivers.
post #1800 of 3466
@adamvx Sup man? I just was curious how and where you found the hex offset etc? May I help you with anything?

@Na1l I just don't feel like validating haha I suppose lets just go and pretend that all my benchmarks are fake lies and are just cheats... haha Or just figure them as a valid result among our OC community here in the Polaris thread.

yeah cool dude but yeah clocks holding and all that has to do with fan rpm. More fan sooner means less or no throttling... too slow of fan spool up and throttles until fan comes up to speed. So if set manual rpm range in Wattman can run without throttle throughout test 1 & 2. However I find less stability at too high of fan rpm. It actually is more stable if not set fan's to max.

By the way I'm doing this all based on BIOS alone, zero messing with clocks in software.

The max I can boot up and I'm sure anyone is 1250 value in place of 65288, which is the max anyway so leaving 65288 is ideal.

So If I used Trixx to volt out higher and clock manually higher than this I'm sure I could get high scores. Those scores are all BIOS, I don't need to set anything. Just go in game and it runs at that speed constantly.
Edited by chris89 - 4/5/17 at 4:02am
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