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post #1511 of 3299
Hi all as well haha So my question is, when you set a voltage in Polaris Bios Editor for the rx 480. Does that voltage stick without touching anything upon starting windows?

@pok123 The voltage on all recent AMD cards are on a sliding scale according to clock... Less clock means it will auto-de-volt the core... So basically if you send me your bios I can line it up for ya. (GPUz "Save Bios" and .ZIP it before Uploading here)

Say if we set 1000Mhz core, that's 32 GPixel/s & 128 GTexel/s on RX 470. I believe stock max voltage is 1.188v on the highest end. So if 1266-1288 will hit 1.188v, then if we set 1000Mhz then it will volt 28.8% less ie rather than 1188 millivolts, it will max out around 925 millivolts... 28.8% reduction in core/ vrm temperature and power consumption. From 88C to 68.32C...
Edited by chris89 - 3/22/17 at 12:19pm
post #1512 of 3299
hey thanks alot chris ok i'll send you the bios.. so its basically locked to the scale right? ie i can't run stock clock speed at lower voltage like 0.900 mV? Where do you want to me send you the bios?
Quote:
Originally Posted by chris89 View Post

Hi all as well haha So my question is, when you set a voltage in Polaris Bios Editor for the rx 480. Does that voltage stick without touching anything upon starting windows?

@pok123 The voltage on all recent AMD cards are on a sliding scale according to clock... Less clock means it will auto-de-volt the core... So basically if you send me your bios I can line it up for ya.

Say if we set 1000Mhz core, that's 32 GPixel/s & 128 GTexel/s on RX 470. I believe stock max voltage is 1.188v on the highest end. So if 1266-1288 will hit 1.188v, then if we set 1000Mhz then it will volt 28.8% less ie rather than 1188 millivolts, it will max out around 925 millivolts... 28.8% reduction in core/ vrm temperature and power consumption. From 88C to 68.32C...
post #1513 of 3299
@pok123 Your welcome. You can send here. Basically the "Scale" is based on 3 factors. TDP/TDC, Temperature of Components, & Clock. The values for say 65288 is a scale value. It will volt according to TDP Requirement of clock. Nothing less than stock voltage on stock clocks could be guaranteed continuous stability.

By running static 1000Mhz, you could at times see better performance because VRM is within it's "Optimal Temperature Range". VRM Outputs "Optimal" below 88C, though near 88C is when we see hefty power loss. So ideally VRM should not exceed 70C for the finest mix of Performance & Minimal power loss. Loss occurs as temperatures rise of all components. Minimize loss, by lowering all temperatures of all components on the PCB. In physics if all components were never to rise above ambient and were able to maintain static ambient under all conditions, no loss would occur. Which could only be achieved by an integrated full PCB electronically controlled sensor controlled Peltier. Which would have even just 1 main sensor to maintain ambient, using a highly accurate ambient temperature sensor.
Edited by chris89 - 3/22/17 at 12:30pm
post #1514 of 3299
oh ok thanks, what kind of settings do you recommend? i don't really need the speed since I don't game much, but i'd like the card to run more efficient and quiet (heat/fan noise). Here is the stock F7 bios:

http://www62.zippyshare.com/v/WBHotdXA/file.html
post #1515 of 3299
@pok123

Make sure all apps are closed, right click open Atiwinflash.exe as administrator. Open .rom, begin flash. restart.

atiflash_274.zip 1214k .zip file

POK123_RX470_4GB_1000Mhz_1797Mhz.zip 110k .zip file
post #1516 of 3299
gotcha thanks alot, will try it tonight and report back!
Quote:
Originally Posted by chris89 View Post

@pok123

Make sure all apps are closed, right click open Atiwinflash.exe as administrator. Open .rom, begin flash. restart.

atiflash_274.zip 1214k .zip file

POK123_RX470_4GB_1000Mhz_1797Mhz.zip 110k .zip file
post #1517 of 3299
Getting occasional black screens under light load (League of Legends) with my Strix RX 470 4GB OC. I actually RMA'd the graphics card a couple weeks ago but the issue is still persisting. I know the Strix RX 470's have some problems with throttling, but is this a related issue that I could solve by flashing the BIOS from a reference RX 470 or something?
post #1518 of 3299
http://s000.tinyupload.com/?file_id=29343162077588828896

could someone please mod the timings on this unlocked rx 460 nitro 4 gb with micron memory for raw bandwidth at stock speed
post #1519 of 3299
So I tested the visiontek reference rx 480 8gb. I immediately thermal modded it only for-the-moment results with the stock material. It's bergquist material with fiberglass lining which is very good.

Successfully bricked the shiz niz out of it too, haha. Since 1388Mhz was so exceedingly effortless, I clocked to 1344mv/ 1563Mhz. No way Hozay. haha

Easy recovery of the bios sort-of. Had to release all power from system between reboots to post to primary HD7570 I had laying around. Must recover in Live OS, or bootable media as windows detects the card too quickly and freezes.

So it's like 1388Mhz is so easy on stock voltage. Call it 1390Mhz, for the full 200 Billion Texel's per second. On stock voltage. Beyond this speed will require software overclocking.. or some time to mess around with it a bit more.

It's a step up from what I have seen from suppliers non-reference. The 290X used Fujipoly which is very good. Though the Bergquist material is too soft for any kind of big improvements. I don't know how hot it ran by stock so no comparison, didn't care. It's important for the material to "Cure" to become "Hard". That's why I'm going to test ceramic Thermeez putty, so it will cure and harden over time improving numbers. Same as I saw with this factory Bergquist material, 2C reduction after 10 minutes of use.

I noticed the "Smaller" vrm in between the "Larger" vrm modules have almost no contact with the stock pad, surely overheating. So by doing this ensures contact and pressure across all "20" RX 480 VRM modules.

My problem now is on 17.3.2, changing bios doesn't actually show the increase in highest clock speed. Anyone else having this issue? Do we need older driver for BIOS changes to take effect?

Solved on 16.9.2 WHQL. So I guess we can do without ReLive or mod the latest drivers? Kinda sucks but 16.9.2 whql is very good anyway.



Stock SMP Mode vs Stock Power DeLimited With NUMA Mode (NUMA Good for benchmarks/ SMP For Rendering and way faster for total cpu throughput)



1388Mhz Stock Voltage Zero Artifacts on Fan Tune/ Could barely hear the fan/ Literally Could not hear it...? Adjusted max RPM in BIOS and slight fan tune/ Power DeLimited : This thing is no slower than maxed out 390X @ 1250Mhz on PCIe 2.0... Faster possibly? Way quieter/ Way less power/ Fast As Heck?!? HAHA



Thermal pads adjust mod at first on stock bios/ first 5 minutes



Thermal pads adjust mod on stock bios/ first 15 minutes



Power DeLimited Stock Clocks Temperatures/ Power (Way Way Faster I might Add)


Edited by chris89 - 3/22/17 at 11:05pm
post #1520 of 3299
So basically chris89, from what you are saying is to set in Polaris Bios Editor the three power tune temperature settings to 88 degreees ?
EG, MaxTemp,Shutdown Temp and Hotspot Temp to 88? Currently they are 90, 94 and 105 on my ASUS RX480 8GB.
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