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[Official] AMD R9 Radeon FURY / NANO / X / Pro DUO FIJI Owners Club - Page 508

post #5071 of 11511
Quote:
Originally Posted by buildzoid View Post

Yeah with Vmods you always start with the VR at maximum ohms then apply a 3D load(Unigine Heaven is good) and slowly turn the resistance down which results in the voltage going up.

If you're getting 1120-1150 core on stock Vcore 1.4V should give you 1200-1300mhz in theory. My HBM however seem to not scale with voltage in the slightest. But maybe my HBM is running too hot or something.

For Vcore on water I wouldn't go over 1.4V and many people will say that's high but considering that there's an 11% decrease in power draw by just lowering core temps from 80C to 55C I'd say if you're sub 60C on core you can run 1.4V.

The HBM is speced by SK Hynix to run 1.2V. IRL it's run at 1.35V and so I don't think over volting it above 1.4V is safe. Also I doubt the HBM will scale with voltage but your mileage may vary.

Great. So maybe I will just skip HBM for my first work and get core to 1.4V.

I'm searching amazon for all things you mentioned in your blog now biggrin.gif Just couple of more questions:

Are those LED voltmeter accurate enough? I'm afraid even 0.1V inaccuracy would lead to either no oc at all or set the chip on fire.... e.g. http://www.amazon.com/bayite-wires-Digital-Voltmeter-Display/dp/B00YALV0NG/ref=sr_1_12?ie=UTF8&qid=1446600791&sr=8-12&keywords=led+0-30V+voltmeter+3+wire

I'm running a 1250W power supply for 5960x+Fury X CF now. If I over volt both Fury X, will the PSU hold? Tools to do the job seem cheap, I'm not sure if I want to invest another 1600W-ish PSU for this...
post #5072 of 11511
Quote:
Originally Posted by fewness View Post

Great. So maybe I will just skip HBM for my first work and get core to 1.4V.

I'm searching amazon for all things you mentioned in your blog now biggrin.gif Just couple of more questions:

Are those LED voltmeter accurate enough? I'm afraid even 0.1V inaccuracy would lead to either no oc at all or set the chip on fire.... e.g. http://www.amazon.com/bayite-wires-Digital-Voltmeter-Display/dp/B00YALV0NG/ref=sr_1_12?ie=UTF8&qid=1446600791&sr=8-12&keywords=led+0-30V+voltmeter+3+wire

I'm running a 1250W power supply for 5960x+Fury X CF now. If I over volt both Fury X, will the PSU hold? Tools to do the job seem cheap, I'm not sure if I want to invest another 1600W-ish PSU for this...

Do you not have a good DMM that you could reference those voltmeters against? I'm pretty sure that if they are incorrect by 100mv they will be 100mv off across all voltages so if they read 1.12 instead of 1.22 just assume it is 1.22V IRL and set the VR such that the volt meters read 1.3V.

For the PSU yeah 1250W should be enough. However there is a chance the cards will ask for 400W or more and that might be a problem. I suggest you pick up a socket based watt meter so that you can check the power the PSU sucks in. If it's a Gold rated PSU 1420W at the wall is too much since you're pulling almost exactly 1250W from the PSU itself.

Make sure you get a good soldering pen with a good fine chisel tip. The chisel tip is key if you get a needle tip your life will suck. If the chisel tip you buy is too big your life will also suck.
post #5073 of 11511
Quote:
Originally Posted by buildzoid View Post

Do you not have a good DMM that you could reference those voltmeters against? I'm pretty sure that if they are incorrect by 100mv they will be 100mv off across all voltages so if they read 1.12 instead of 1.22 just assume it is 1.22V IRL and set the VR such that the volt meters read 1.3V.

For the PSU yeah 1250W should be enough. However there is a chance the cards will ask for 400W or more and that might be a problem. I suggest you pick up a socket based watt meter so that you can check the power the PSU sucks in. If it's a Gold rated PSU 1420W at the wall is too much since you're pulling almost exactly 1250W from the PSU itself.

Make sure you get a good soldering pen with a good fine chisel tip. The chisel tip is key if you get a needle tip your life will suck. If the chisel tip you buy is too big your life will also suck.

Cool, so I'll pick one of those LED toys, along with a DMM...It's good to see a number to easy my mind biggrin.gif

Just did a watt measure...the system draws 800W in Firestrike combo test, 750W in Valley...should have enough headspace~

Thank you so much!
post #5074 of 11511
Can someone here upload the Sapphire Fury Tri X OC bios?
Would like to flash by non OC with the OC bios.
post #5075 of 11511
Quote:
Originally Posted by mRYellow View Post

Can someone here upload the Sapphire Fury Tri X OC bios?
Would like to flash by non OC with the OC bios.

Open after burner. Set core clock to 1040mhz. There you just got the same results as flashing without running the risk of bricking your card.
post #5076 of 11511
Quote:
Originally Posted by buildzoid View Post

Open after burner. Set core clock to 1040mhz. There you just got the same results as flashing without running the risk of bricking your card.

Lol, i'm already running at 1070mhz smile.gif
I think the OC has more voltage. That's why i want the bios. Who know when AB will get voltage support for the Fury.
post #5077 of 11511
Quote:
Originally Posted by mRYellow View Post

Lol, i'm already running at 1070mhz smile.gif
I think the OC has more voltage. That's why i want the bios. Who know when AB will get voltage support for the Fury.

I doubt it. You can measure voltage pretty easily without any soldering using a DMM. Just check my volt mod guide. Measure from any of the highlighted GND points to any of the highlighted VCC points.
post #5078 of 11511
Wanted to highlight this if someone can test and report.

Was looking at Fury rom and noted on TPU database W1zzard has highlighted left rom increased power limit and right is stock.
Quote:
Originally Posted by Neon Lights View Post

Does anyone know what would have to be done to edit a Fury X BIOS?

Even the very old AtomDis available on web creates tables for these roms. Comparing PowerPlay data table (which is where in Hawaii cards powerlimit values are) there are value changes between the 2 linked roms. I have not yet made an attempt to translate values fully.

There is an increase on hex value lower down the table which is similar location for value which relate to powerlimit in Hawaii roms. There are 3 in Hawaii rom relating to powerlimit and would assume that would be the case for Fury as well.
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post #5079 of 11511
Quote:
Originally Posted by gupsterg View Post

Wanted to highlight this if someone can test and report.

Was looking at Fury rom and noted on TPU database W1zzard has highlighted left rom increased power limit and right is stock.
Even the very old AtomDis available on web creates tables for these roms. Comparing PowerPlay data table (which is where in Hawaii cards powerlimit values are) there are value changes between the 2 linked roms. I have not yet made an attempt to translate values fully.

There is an increase on hex value lower down the table which is similar location for value which relate to powerlimit in Hawaii roms. There are 3 in Hawaii rom relating to powerlimit and would assume that would be the case for Fury as well.

I was primarily looking for a way to change the voltage. However, without a higher Power Limit overclocking is about as hard as without a higher voltage, so that is important as well. So, thank you for noting and looking into that.

I am planning to look into it.
post #5080 of 11511
Quote:
Originally Posted by battleaxe View Post

Maybe, maybe not. My Hawaii card runs about .1 lower volts than does almost everyone else. The BIOS was different. Seems that depending on how the chips are binned they could possibly be putting a slightly different BIOS to them to use different volts. My friend bought an MSI gaming 290 at the exact same time and his was like everyone else. So IDK. The Fury's might be different though. Hard to tell.

I'll have go to explain what I noticed with 290/X roms and I believe this is the same for other Hawaii GPU cards (have had some results from other owners) and may well be the same for newer cards. ie Fury

Firstly a ROM can have a GPU core voltage offset within ROM (it can also be in the voltage control chip, same one used on Fury). If in MSI AB you see a preset GPU core voltage offset your card has it. This voltage applies to all DPM states, there are 8 in the ROM.

Next we must talk about ASIC profiling (Leakage ID (ASIC Quality)).
Quote:
Originally Posted by The Stilt View Post

High ASIC "Quality" (Leakage) = Lower operating voltage, larger current draw, hotter, less energy efficient (due higher losses)
Low ASIC "Quality" = Higher operating voltage, lower current draw, cooler, more energy efficient

SO say an owner has x ASIC Quality they will have x VID for GPU, another owner has y ASIC Quality they will have y VID for GPU.

Next we must talk about EVV (Electronic Variable Voltage) in every stock ROM only the lowest state of GPU voltage is the same ie DPM 0. Now why EVV is used for DPM 1 - 7 is so with all this profiling going on each ROM does not have to be tailored to a exact GPUs properties.

Now one thing that also happens under EVV is the default GPU clock affects VID.

For example when I flashed my card with a default GPU clock of 1100MHz I get a differing VID to 1000MHz. Everything in my testing was the same and the same ROM was used but edited GPU clock. This example is based on using EVV and only when a VID is manually set for a DPM state in ROM this effect stops. Now you can see why manufacturer wouldn't use manually set voltages, they'd be spending too much resources creating a tailored ROM per GPU used on card.

SO as default GPU clock in a ROM goes higher set VID will be lower. SO an owner of a card with say 1000MHz as default GPU clock will have higher VID than an owner with 1100MHz. That's why OC edition cards tend to have a GPU core voltage offset in ROM or voltage chip. This is quick easy voltage fix.

SO the 3 factors:-

1) Leakage ID (ASIC Quality)
2) Default GPU clock
3) ROM or Voltage chip having a global core voltage offset which bumps voltage in all DPM states

There is more to this as there are factors which deem good/bad asic even with same leakage, I can not elaborate as a) don't have full info b) don't understand some of it .

Now you maybe thinking how to assess VID (generally people are noting VDDC via software, a drooped value) well the Stilt created an app, this works for DPM7 on EVV gen 1 cards listed in linked post.
Edited by gupsterg - 11/4/15 at 9:46am
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The Stilt Machine
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