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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 29

post #281 of 3452
Quote:
Originally Posted by hot97integra View Post

So this mean I don't have the full 8gb unlocked? It unlocked 7.4gb? Or does it mean the .6gb is running at slower speed?

wouldnt you overclock the memory 2 get that last 0.6gb memory up 2 speed?
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post #282 of 3452
Quote:
Originally Posted by Agent Smith1984 View Post

I knew I'd get a technical, yet still understandable answer out of you thumb.gif

I have seen a few articles about the card and they measured the cards power usage (don't recall how) and they did show the card using between 145-195w depending on the load. However, that is with the card throttling here and there. Once you crank that slider to 50% and get full power and full clocks, I can see how the thing might use more juice than it should. Still much better than Hawaii though.... but no, it's nowhere in realm of Pascal efficiency.

AMD is unlikely to ever reach Nvidia efficiency due to the design they choose a more flexible with hardware support (GCN)
They did a good job vs what they had before but I guess not until Navi we will find a great power/wattage/performance efficient card from amd.
Vega be better but catching nvidia isnt possible unless they do a whole tech redesign.

The good part is the card one buy hold value way longer before one needs to upgrade.
When we get a 1440p card that starts doing what a 480 is able to do at 1080p that be a good day thumb.gif
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post #283 of 3452
The efficiency actually is not that far off, they are just using higher voltage than Nvidia. Put the same core voltage on Nvidia chips and watch the power draw skyrocket.
post #284 of 3452
That basically is the whole definition of power efficiency, the nvidia chip can reach higher compute power per mm2 die size at lower currents.
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post #285 of 3452
My Sapphire 4 GB reference card which shipped the 10th and was delivered yesterday has 8 GB of RAM, which I unlocked and verified with the GTX 970 VRAM test.
post #286 of 3452
Quote:
Originally Posted by kizwan View Post

My bad. I understand the question differently; I thought he is questioning why GPU-Z reporting low value. Obviously it involving mixture of guesswork & calculation OR using power meters that connects to the 6-pin & the PCIe slot (required PCIe extender card) to get the whole card power consumption.
Just avoid 128kb file. 256kb & 512kb files are fine.

Good point. Do not use GPU-Z BIOS dump files and do not use GPU-Z to backup your BIOS. It will produce the 128 KB files of which we speak that can soft brick your card.
post #287 of 3452
Quote:
Originally Posted by appiah4 View Post

I just ordered a 4GB Sapphire reference card.. and I have a few questions I hope someone would take a few moments to respond to..

How likely is it that it will be bios flashable to an 8gb?
How reliable is ASUS MemoryInfo for determining whether I have the right memory modules? Should I remove the shroud instead?
The card's bios rom dumps are 512kb but the 8GB Sapphire bios rom on TPU database is 256K, it will be fine right?
Would I be better off flashing straight to the XFX 1328MHz BIOS?
Finally, if I brick the card, will I be able to stick it into a secondary PCIe slot and reflasy using ATIFlash? Does it have to be the primary VGA to be flashed?

Thanks smile.gif

Very likely. I ordered one just this last Thursday, the 7th, and it was totally fine. The general consensus has found that all 4 GB reference cards are indeed, chip for chip, identical to the 8 GB ones. They have just been factory locked with a different BIOS is all. You can easily unbrick if you have an integrated GPU on your processor or having an extra video card handy and an extra PCIe 16x slot.

Initially, I had problems flashing directly to the XFX, but once I used the command line approach that Powergate pointed out, I was set. See his post directly below. You will want to use this BIOS because XFX had to patch their original BIOS due to an issue graphically artifacting at the POST startup on UEFI. Also, by simply Googling, I downloaded and used several VRAM tests of different kinds and they all verified the 8 GB was fully accessible and operative.
Quote:
Originally Posted by Powergate View Post

You need to use the command shell:
Code:
atiflash -fs -p 0 xfx.rom

Here is the fixed XFX Black Edition 8GB bios:
xfx.zip 111k .zip file

Source:
https://www.techpowerup.com/forums/threads/xfx-rx480-8gb-black-edition-uefi-csm-bug.224001/

Edited by bluerodent - 7/13/16 at 7:25am
post #288 of 3452
Quote:
Originally Posted by nagle3092 View Post

Has there been any confirmation of cards that only ship with 4gb yet?

No, it seems like ALL reference 4GB cards are identical hardware wise to 8GB versions. I just got in my PowerColor 4GB and flashed it with the stock AMD 8GB ROM and have full 8GB ram and its all accessible.


post #289 of 3452
Quote:
Originally Posted by bluerodent View Post

You can easily unbrick if you have an integrated GPU on your processor or having an extra video card handy and an extra PCIe 16x slot.
[...] You will want to use this BIOS because XFX had to patch their original BIOS due to an issue graphically artifacting at the POST startup on UEFI.

One thing i noticed: if your bios flash failed, you can only boot with CSM enabled or otherwise it will stuck on a black UEFI GOP screen.

Edit:
How i recovered from my corrupt bios flash:
- Unplug 6 pin power connector.
- (Switch display cable to IGPU)
- Boot Windows and remove AMD GPU driver.
- Boot into BIOS, enable CSM and set Integrated GPU to default (on Intel based Mainboard)
- Insert 6 pin power connector.
- Boot Windows and re-flash working BIOS file.
Edited by Powergate - 7/13/16 at 10:11am
post #290 of 3452
I wish I had bought the 4Gb version, damn...
But not sure how much longer this party will continue, my thinking is AMD didn't had much of 4Gb Gddr5 available to them and they wanted to reach that 199USD price.
Now they must have got some qty which now etailers will receive and no more luck for us rolleyes.gif
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