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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 241

post #2401 of 3406
Quote:
Originally Posted by mazedmarky View Post

The Bios won't let me dial in any Vcore above 1.2V.. any tips or is it just not possible? Thanks

Edit: Nevermind, it's working now, GPU Tweak is just not reading the right values.

GPU tweak is about the worst oc software i've ever used. Do yourself a favor and get afterburner or trixx 3.0
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post #2402 of 3406
Quote:
Originally Posted by jeztur2003 View Post

GPU tweak is about the worst oc software i've ever used. Do yourself a favor and get afterburner or trixx 3.0

Yeah I have Afterburner too, but somehow it won't let me dial in any Vcore above 1.2V. GPU Tweak shows wrong values but at least the offset works..
post #2403 of 3406
Quote:
Originally Posted by generaleramon View Post

PulseSamsungConversion.zip 109k .zip file

Samsung Memory Only Now thumb.gif Gpuz will still show Hynix.

anyone tried this on an rx 480 8gb nitro+?
post #2404 of 3406
So.. I did some tests. This is with my flashed Strix 480 with Weeezy91s AS06 RX580 Bios and I also used Uber Extreme timings. That peak power draw though, lol

Edited by mazedmarky - 4/22/17 at 4:29am
post #2405 of 3406
Quote:
Originally Posted by mazedmarky View Post

So.. I did some tests. This is with my flashed Strix 480 with Weeezy91s AS06 RX580 Bios and I also used Uber Extreme timings. That peak power draw though, lol

I feel your pain crossfire is a power hungry son of a *****!
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post #2406 of 3406
Quote:
Originally Posted by iakoboss7 View Post

anyone tried this on an rx 480 8gb nitro+?

I would if I haven't that weird bug with 17.4.3 drivers..

One boot on two or so, my monitor is not detected, cannot change its resolution and bench doesn't lauch... However my Rx480 shows up in windows...

17.2.1 runs like charm. Could try HDMI port but my monitor doesn't support it and my TV is just to bright to use it as a monitor, so it's definitly not a 'fix' for me.

Don't know what to do except waiting for a new driver version from amd.
Edited by Mhazz - 4/22/17 at 4:14am
post #2407 of 3406
Quote:
Originally Posted by jeztur2003 View Post

I feel your pain crossfire is a power hungry son of a *****!

Dude that's with a single RX480 biggrin.gif Peak power draw though. I think it was at 270W most of the time (but GPU-Z reading is without Vram so you can add 40-50Watts on top of that)

Edit: I don't know what happened to the picture, suddenly it shows the score 2 times. I fixed it now in the original post.
Edited by mazedmarky - 4/22/17 at 4:30am
post #2408 of 3406
Quote:
Originally Posted by mazedmarky View Post

Dude that's with a single RX480 biggrin.gif Peak power draw though. I think it was at 270W most of the time (but GPU-Z reading is without Vram so you can add 40-50Watts on top of that)

Edit: I don't know what happened to the picture, suddenly it shows the score 2 times. I fixed it now in the original post.

That's insane!
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post #2409 of 3406
This Asus 480 only has an ASIC of 69.4% I know it doesen't really mean anything but the card is a real sucker past 1.2V that's why I will keep running at 1430Mhz core for now. My reference card had a score of 75.4% but the cooler was too weak. I wish I could melt those two cards together wink.gif
post #2410 of 3406
First crap thing, 580 doesn't have the option for power efficiency in crimson.
So, a dx9 racing game I play which runs 60 fps with reshade shaders used to run at 900 mhz/ 0.9 v and 30 watts now uses 60 watts at 1285mhz/1.175v. Power efficiency is a good thing on older games, and for newer ones I use this program to lock the clocks at top. It's called clockblocker and works well!
http://forums.guru3d.com/showthread.php?t=404465


Power draw is all over the place with the BIOSes. I think they all have different settings for the sensors.
I saw the same thing with my 7950, when I flashed different bioses, it would read differently for idle/ 3d load.

Example, With same clocks/vcore, no throttling (delimited) and same fps (same conditions)
And core heats up the same with max fan, so I feel like it's the same actual power despite the sensor readings.
afterburner test 1
My xfx rs bios 480 says 150w
Xfx gtr 480 bios 220w ?
Powercolor 580 says 170w
Msi 580 225w?
Sapphire 580 185w

So I'm thinking with different current sense lines and sensors they are calibrated all differently.
I wish my vrm reported vrm in 12v current, which is the simplest way to know how much power is really going in.
If I have time I will use a clamp on dc ammeter to compare the current on the pci-e +12v wires between the BIOSes, but I suspect it will be close despite 2 of them reporting 50 watts more!
My 12v psu drop is similar in all cases too, dropping from 12.2v to around 11.8v, again showing same 12v load.

If I could run higher clocks I'm sure that difference would be much more pronounced.
I doubt there is that much difference in efficiency lol.
Edited by robnitro - 4/22/17 at 6:30am
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