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post #191 of 3460
Quote:
Originally Posted by fewness View Post

Unstable OC will crash the driver, but this doesn't crash. In Valley it holds at 1500, in 3DMark it drops to ~1300 and finish the run.

set your clock speeds and voltages to the same across the board, ie.
1500 1500 1500 1500 1500 1500 1500
1250 1250 1250 1250 1250 1250 1250
post #192 of 3460
Quote:
Originally Posted by fewness View Post

Unstable OC will crash the driver, but this doesn't crash. In Valley it holds at 1500, in 3DMark it drops to ~1300 and finish the run.
Ah ok, you called downclocking as not stable it had me confused.
post #193 of 3460
@fewness

Great to read someone else used the info wink.gif , you can add /sgx , x denotes card number (no1 card in system = 0).

/sg0 /wi06,08,8d,xx
/sg1 /wi06,08,8d,xx
/sg2 /wi06,08,8d,xx
/sg3 /wi06,08,8d,xx

@comagnum

Cheers for the XFX 1328MHz bios thumb.gif , submit it to TPU database via GPU-Z if you haven't already wink.gif .

You need to see in i2cdump that "Probing device 08..." is under line "Scanning I2C bus 6..."

Basically the command is :-





@subscribers

What I would advise if anyone wish to play with VDDC command via i2c is to add a VDDC limit, this will mean even if you make an error in what data value you send with VDDC offset command it will never go over 1.36875V. The command to do this is:-

/wi06,08,3d,5f

If you have multiple cards then add the /sgx command as above and send to each card prior to adjusting VDDC offset.

Also be aware any commands we send via i2c tend to revert back to defaults if we reboot, etc.

@comagnum I would add a VDDC limit even your XFX does not have one like the other cards dumps I've seen.
Edited by gupsterg - 7/10/16 at 1:11pm
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post #194 of 3460
Quote:
Originally Posted by comagnum View Post

set your clock speeds and voltages to the same across the board, ie.
1500 1500 1500 1500 1500 1500 1500
1250 1250 1250 1250 1250 1250 1250

Can you change each individual clock speed in WattMan?

But regardless, I think the problem is with power limit. Valley @1500 uses ~150W power, as reported by GPU-Z, this number goes over 180W when running 3DMark....

Is there any BIOS with larger power limit? All the ones I found on TPU have the same 110W base/50% increase. I tried to edit the BIOS to 100% increase, then driver won't recognize the card after flash...
post #195 of 3460
Quote:
Originally Posted by gupsterg View Post

@fewness

Great to read someone else used the info wink.gif , you can add /sgx , x denotes card number (no1 card in system = 0).

/sg0 /wi06,08,8d,xx
/sg1 /wi06,08,8d,xx
/sg2 /wi06,08,8d,xx
/sg3 /wi06,08,8d,xx

Cool! Now I just need to find a BIOS that can take this much power after voltage increase....
post #196 of 3460
Use The Stilt's Ellesmere backdoor app wink.gif .

Note:- Due to how driver is app only work for 1 card sadsmiley.gif.
Edited by gupsterg - 7/10/16 at 1:28pm
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Hard DriveCoolingCoolingCooling
Samsung Evo 840 ThermalRight Archon IB-E X2 + 2x TY143 ThermalRight TY-143 2x front case intake Arctic Cooling F12 + 2x F9 as rear case exhaust 
OSMonitorKeyboardPower
Win 7 Pro x64 / Win 10 Pro x64 Asus MG279Q Cherry MX-Board 3.0 Cooler Master V850 
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SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
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Hard DriveCoolingOSMonitor
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KeyboardPowerCaseMouse
Cherry MX-Board 3.0 Cooler Master V850 SilverStone TJ06 Logitech G700S 
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post #197 of 3460
Quote:
Originally Posted by iRUSH View Post

My XFX 4gb RX 480 successfully flashed last night with the Black Edition bios! I now have 8gb vRAM and 1328 core clock. Worked like a charm with ATIflash thumb.gif

did anyone bechmark before and after?

i got less points with the XFX BIOS in 3d mark compared to stock clock with undervolting.
post #198 of 3460
Quote:
Originally Posted by gupsterg View Post

Use The Stilt's Ellesmere backdoor app wink.gif .

Note:- Due to how driver is app only work for 1 card sadsmiley.gif.

I tired that and doesn't work even with 1 card on at least drivers with WattMan. Unless there's a new custom Bios for the 1500 at 1250 the guy posted above?
post #199 of 3460
Quote:
Originally Posted by gupsterg View Post

Use The Stilt's Ellesmere backdoor app wink.gif .

Note:- Due to how driver is app only work for 1 card sadsmiley.gif.

Worked for me! thumb.gif

Power draw becomes scary....skull.gif



post #200 of 3460
Quote:
Originally Posted by fewness View Post

Worked for me! thumb.gif

Power draw becomes scary....skull.gif




Highest I was able to achieve was 1400/2200. I got it to 1425 but after one fire strike run it started artifacting.
http://www.3dmark.com/fs/9253887 - 14501 gfx score

current settings: 1380 @ 1200mv/2200 @ 1000mv - 160% power level
http://www.3dmark.com/fs/9255243 - 14512 gfx score (higher for some reason, but I'll take it)
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