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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 184

post #1831 of 3335
Run atikmdag full patch, sorry for the slang. Not just the bios patch but everything it offers.
post #1832 of 3335


This ???
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post #1833 of 3335
Quote:
Originally Posted by ekoaja View Post

What is full shebang patch ?
I think he means patching not just the signature, but pixel clock too. IDK, mine works just fine by patching only the signature.
Quote:
Originally Posted by ekoaja View Post

Anyone can explain ? after 17.4.1 i cant even set vid over 1175v via wattool. No matter what number i set it stuck at 1175.
It's what it was supposed to be by default. I don't remember the specifics, but you need to remove that limit by either editing a registry key or by using a checkbox somewhere in Afterburner. "Extend overclocking limits" or something like that.
Quote:
Originally Posted by kithylin View Post

I have a question about the new polaris cards.. I'll admit I'm being sort of lazy, and didn't want to read through the whole thread but just sort of ask a basic question.

Right now I have a rather exotic 290X card: Sapphire TRI-X OC 8GB R9 290X with the big cooler and 3 fans on it and 2x8pin pcie. I had the nice folks here on overclock.net give me a custom bios for it where we upped the voltage (a pretty good bit), and a custom overclock on it, and disabled both power and thermal throttling and sort of a "Balls to the wall" custom bios mod to it.

And, this sort of thing is why I went AMD.. because nvidia won't let us do this with their modern cards anymore. But AMD did. So.. I'm curious about the Polaris line. Is AMD still letting us be "loose and free" with bios mods and disabling throttling and setting voltage to any value we want? Or has AMD changed and gone to "clamping down" on us like nvidia and not letting us mod anything?

I was thinking of considering like upgrading to a RX 480 8GB card, putting a water block on it and trying to push it "to the edge" as far as it'll go.

What's the average overclocks on RX 480's on water with custom bios?
Yeah, you just have to patch the driver signature and you're set.
The overclock variance is huge. You can get anywhere between 1300MHz and 1500MHz, and beyond. Cooling helps quite a bit.
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post #1834 of 3335
Only problem with patcher is it breaks dxva, so I try and use DSEO and just didn't care enough to wanna mess with it much. WHQL 16.9.2 works and without ReLive so not a huge deal.

It pretty much simply signs the modded driver... enable test mode then sign c:\windows\system32\drivers\atikmdag.sys ... done... its not that easy and I didn't care enough to get it to work...
post #1835 of 3335
Quote:
Originally Posted by chris89 View Post

@kithylin

vigilink redirect? copy & paste

https://www.visiontek.com/refurbished/performance-graphics/radeon-rx-480-overclocked-8gb-gddr5-rear-blower-4m-3x-dp,-hdmi-402-detail.html

$169.99 these are great cards I bought several all capable of 1407mhz. No need to water cool, keep it simple. These are better cards than 290x/ 390x as you can throw this gpu in any system and run just like if not faster than 290x/ 390x plus hdmi 4k 60hz plus vsr up to 5k. The rx 480 is worth it.

Unlocked and all that? I mean sort of it's more detailed and nvidia cards allow the same thing, you could de-limit but the vrm may soar sky high... that's why we can control vrm and throttle according to temperature when delimited... I just had to do tons and tons of rigorious testing and experimentation to know the in's and out's of these gpu's.

If you wanna fine-tune the 290x, send me the bios and we can dial er' in a bit more efficient with plenty of big end horsepower. thumb.gif

Thanks.. but no thanks. I have my overclock dialed in and it's 100% rock solid stable on my 290X, and it runs max boost all the time and never throttles for any reason, maxes out 72c under load and everything's great.

Also I found some other people on 3dmark website that have the same CPU I do at the same clocks I do (3770K @ 4.8 ghz) and even with a RX 480 @ 1400 Mhz, it's only +12% faster than tweaked 290X.

So I don't know if I really want it as an upgrade, considering it. I was just curious if AMD is still letting us have "full control" with a custom bios or if they decided to go the "nvidia route" and lock us down yet.

Also I've seen a lot of reviews from most of the main tech youtube channels on both stock and aftermarket RX 480's and they typically run in the mid to low 80's C and throttle themselves when gaming. So water cooling would help a great deal. Also I wanted to go water with my 290X but no one makes a block for it's custom PCB so I'm screwed. There's a lot more blocks as an option for custom RX 480's as an example.

Also I would never spend a dime on a refurbished GPU myself. Used in good shape or new with warranty only. That's just me, personally though.
Edited by kithylin - 4/6/17 at 10:54pm
post #1836 of 3335
You can DeLimit AMD & Nvidia via BIOS mod. You can pretty much do the same stuff on AMD & Nvidia. Just in different ways. The RX 480 uses I would say a 1/4 the power of 290x/ 390x while at max clocks on stock voltage of all things. The RX 480 outruns these cards on stock voltage up to 1407Mhz. Can do more with Trixx but can't set 65288 higher than 1250 "max" or black screen upon entering windows.

290x/ 390x can do 1000mhz stock voltage, 1080mhz stock voltage, 1133mhz 1333mv, 1166mhz 1366mv, 1188mhz 1388mv, 1200mhz 1393mv, 1220mhz 1400mv, 1250mhz 1425mv.

It's all up to the undervolt the memory since the PCIe bus shows no difference beyond 1250mhz memory so might as well save 33% power by running 888mv memory is all. That's upwards of 25C cooler.
post #1837 of 3335
Quote:
Originally Posted by chris89 View Post

You can DeLimit AMD & Nvidia via BIOS mod. You can pretty much do the same stuff on AMD & Nvidia. Just in different ways. The RX 480 uses I would say a 1/4 the power of 290x/ 390x while at max clocks on stock voltage of all things. The RX 480 outruns these cards on stock voltage up to 1407Mhz. Can do more with Trixx but can't set 65288 higher than 1250 "max" or black screen upon entering windows.

290x/ 390x can do 1000mhz stock voltage, 1080mhz stock voltage, 1133mhz 1333mv, 1166mhz 1366mv, 1188mhz 1388mv, 1200mhz 1393mv, 1220mhz 1400mv, 1250mhz 1425mv.

It's all up to the undervolt the memory since the PCIe bus shows no difference beyond 1250mhz memory so might as well save 33% power but running 888mv memory is all. That's upwards of 25C cooler.

65288 is what.. voltage? I'm not that well versed in the depths of the bios editing. I tried to read it all and learn it but my head just hurted and I stopped. Also I'm not terribly concerned about power usage. I want raw performance for my money. Like I said above, 1400 mhz RX 480 is only +12% faster than what I have.. I was only considering it because we can get it with water and I can't water cool my card.
post #1838 of 3335
HAHA yeah 65288 on all AMD cards is the "Variable Voltage Range"... Tonga 65288 was 1225mv, Hawaii/ Grenada 1250mv, Polaris 1250mv. It scales though as we know, but can go as high as that max on 65288. On Tonga/ Hawaii/ Grenada can increase 65288 beyond 1250 without black screen up to just below 1450mv (1449mv).

390X @ 1250mhz core 1758mhz memory vs 1250mhz memory on even PCIe 3.0 max 16GB/s doesn't gain anything because the bus is limiting it's epic 512bit memory bus width.

RX 480 @ 1407mhz core 2110mhz memory all on stock voltage is the same if not better by quite a lot when DeLimited while using such a nano fraction of what the 290x/ 390x uses.

To sum it up 390x @ 1250mhz is 80GPixel/s but with more loss so kinda rounds down truly 70'ish because of bus limitation but it's a screamer at 1250mhz more than 500w.

RX 480 @ 1407mhz is 45GPixel/s but since so little loss and so low power it's more like 90GPixel/s surpassing the 390x in reality by as much as 10 billion pixel's every second. On way less power.
Edited by chris89 - 4/6/17 at 11:03pm
post #1839 of 3335
Quote:
Originally Posted by chris89 View Post

HAHA yeah 65288 on all AMD cards is the "Variable Voltage Range"... Tonga 65288 was 1225mv, Hawaii/ Grenada 1250mv, Polaris 1250mv. It scales though as we know, but can go as high as that max on 65288. On Tonga/ Hawaii/ Grenada can increase 65288 beyond 1250 without black screen up to just below 1450mv (1449mv).

390X @ 1250mhz core 1758mhz memory vs 1250mhz memory on even PCIe 3.0 max 16GB/s doesn't gain anything because the bus is limiting it's epic 512bit memory bus width.

RX 480 @ 1407mhz core 2110mhz memory all on stock voltage is the same if not better by quite a lot when DeLimited while using such a nano fraction of what the 290x/ 390x uses.

When I was tuning it my 290X card gained +10% in firestrike just from increasing the ram speed +30% over stock, it definitely does help quite a lot. Anyway.. thanks for the information on that. So there is an upper limit, and it's lower than the older cards.. interesting.
post #1840 of 3335
@kithylin

For sure do not expect huge difference comparing 290X to RX480 in matter of performance.

I don't know how 290X scores nowadays with new drivers but i can reach 16000 graphic points in Firestrike, 6900 graphic points in Firestrike Extreme at 1480/2100. You can treat that as a reference and compare it to your overclocked 290X. There are some golden chips on the market which can reach 1560 MHz with reasonable voltage as well.

I have water cooled RX480 and i can reach 1480 MHz @ 1.3V on core, if i will figure out how to properly cool down VRM i will be able to use it 24/7. Power efficiency of RX480 on 1.3V isn't perfect as the card needs 225+ W to run on such clocks. comparing to 295-350 W on 290X. For sure it is a huge improvement of AMD but it's not a huge difference.

My card on stock voltage is able to achieve 1340 MHz, with +100 mV (1.2V) is able to reach 1420 MHz. As you can see to increase the clocks by 60 MHz up to 1480 MHz i need another +100 mV (1.3V).

If i remember well power consumption on 1420 MHz is around 150-175W.

If i would be in your position i would stay with 290X as it is a great card and in some games it may be even better than RX. If there will be some increase it will be small. Wait for VEGA.

Regarding cooling, throttling and so on. Forget about overclocking on stock reference cooler. You can boost clocks to 1400 but temp throttling will kill the performance. Most ppl who bought RX480 with Ref cooler undervolt the card to stop throttling.

There are three situation when RX is throttling:

1) due to temperature of Core
2) due to insufficient power budget (card with stock bios is limited to 165W - according to my experience card start to downclock at 1400-1420 and 1.2V)
3) due to VRM temperature over 115 C degrees

Water block on the chip is a good idea, temperature on my chip is below 50 C under load. The biggest challenge is to cool down the VRM section, on ref card VRMs are located in front section of PCB which is very short. It's really hard to find a proper heatsink which will fit into this gap without modifications.
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