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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 192

post #1911 of 3451
For sure. I use that material on my ram and vrm and many other components... Ceramique 2 on core and it's fast as heck and rock solid.

2110Mhz memory max error free 270,000 Mega Bytes Per Second... its a screamer haha

2266Mhz memory with errors about 70 errors for 290,000 Mega Bytes Per Second.

Polaris refresh with metallic heat spreaders on memory could see 2,500Mhz memory for 320,000 Mega Bytes per second.
Edited by chris89 - 4/10/17 at 1:15am
post #1912 of 3451
Thread Starter 
Quote:
Originally Posted by chris89 View Post

Yeah if your getting instability then buy that thermal material I list cut each square in half for each memory module.. cooler modules means more clockability and less errors... stock timings is on point, no other timing is more ideal... cool modules is key and use on vrm and ceramique 2 on core and notice massive improvement...

few pages back...
Code:
"RX480 GTR
stock timings

1266/2000 - 198 GB/s
1266/2100 - 210 GB/s

Uber V2.1

1266/2000 - 224 GB/s
1266/2100 - 232 GB/s

1266/2000 with stock timings - Firestrike graphic points: 12953
1266/2000 with uber v2.1 timings - Firestrike graphic points 13643

nearly 700 points increase, it's equivalent of +95-100 mhz on core, a lot"

not ideal rolleyes.gif
post #1913 of 3451
Quote:
Originally Posted by generaleramon View Post

few pages back...
Code:
"RX480 GTR
stock timings

1266/2000 - 198 GB/s
1266/2100 - 210 GB/s

Uber V2.1

1266/2000 - 224 GB/s
1266/2100 - 232 GB/s

1266/2000 with stock timings - Firestrike graphic points: 12953
1266/2000 with uber v2.1 timings - Firestrike graphic points 13643

nearly 700 points increase, it's equivalent of +95-100 mhz on core, a lot"

not ideal rolleyes.gif
Yeah... 2000MHz memory with your timings is pretty much equivalent to ~2300MHz with stock timings, except at 2300MHz you're pretty much guaranteed EDC errors.
Bandwidth wise the most I could get was 242GB/s. Neither playing around with timings, nor increasing memory clocks could get me past that.

edit :another, semi-relevant, observation; IMC seems to be quite sensitive to temperature. EDC errors appear as core temperature incrases. After my recent heatsink remount I noticed I was getting a lot of EDC errors, whereas before I wasn't getting any. Took the card out. Tightened the four screws that hold the heatsink to the core, turning each screw a quarter of the way. Reinstalled the card - no more errors. Either part of the die was not making contact or it must've been gremlins.
Edited by Loladinas - 4/10/17 at 3:28am
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post #1914 of 3451
Nice. I'll have to try out the timings haha. See if it makes a difference on GPGPU AIDA benchmark and in game.

Yeah I crank all my screws as tight as they will go and receive no errors and minimal errors stock timings 2266mhz memory. thumb.gif
post #1915 of 3451
I wish i could remove my stock cooler but xfx warranty won't let me!


Yeah timings some times help more in cases of memory controller issues.

My i5-2500k is rated for 1333 ddr3.
I couldn't go much past 1866 on my 2133 ram, but I could run at 1866 9 9 9 and higher won't work at all even at 10 or 11!
post #1916 of 3451
I got stable bandwith with 1750 mhz timing with 50 mv added voltage(for vram) at 2200mhz - 281.6gb/s. Anything above that refuses to work properly.
post #1917 of 3451
Quote:
Originally Posted by nolive721 View Post

hello Na1l,

I have OCed my memory to 2250Mhz as mentioned earlier and without touching its voltage but would like to push the timings more extreme.how to check which memory brand my card is using? are the timings in the OP only valid for Samsung?I believe Hynix is the other memory maker AMD is using on RX480, would that timings work on my card if so?

if i understand well Rx480 with 8Gb was equiped with Samsung ICs, 4GB with Hynix. I have 8GB versions and i have Samsung. I do not have any experience with Hynix. Maybe @generaleramon can tell us how to check which memory ICs you have without touching the cooler.

@Loladinas

i also noticed that IMC is very thermal sensitive.
Edited by Na1l - 4/10/17 at 8:52am
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post #1918 of 3451
Thread Starter 
Quote:
Originally Posted by Na1l View Post

if i understand well Rx480 with 8Gb was equiped with Samsung ICs, 4GB with Hynix. I have 8GB versions and i have Samsung. I do not have any experience with Hynix. Maybe @generaleramon can tell us how to check which memory ICs you have without touching the cooler.

Try this:

https://www.techpowerup.com/download/asus-radeon-memoryinfo/

Never tested with polaris
post #1919 of 3451
Quote:
Originally Posted by generaleramon View Post

Try this:

https://www.techpowerup.com/download/asus-radeon-memoryinfo/

Never tested with polaris

This software properly identify my Samsung ICs, other details are scrambled but are irrelevant. It should work for you. Thanks @generaleramon !
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post #1920 of 3451
Here, nothing else is changed, only the memory timings. Watch for memory errors with HWInfo. It's not guaranteed to work, so use at your own risk. Worst case scenario you'll need to flip the BIOS switch on the card, boot to Windows, flip the switch back and reflash the old rom.
bios.zip 109k .zip file
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