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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 198

post #1971 of 3472
Quote:
Originally Posted by chris89 View Post

Always upload as .zip... thumb.gif
thanks Orginal.zip 111k .zip file
post #1972 of 3472
This works well for me 75C limits, its stable for me.. maybe your card can handle higher clock?

Try this to start and just crank the core in Trixx as high as you find stable and we can set it in BIOS... Throw everything you can at it.. 4k 16x aa... we need to stress it to the limit to know for sure what max hard-bios-clock it can handle... Or just turn off vsync and let the FPS soar.. whatever you can so we can be certain as to what it can handle. thumb.gif

MegaX05_MSI_Gaming_X_4GB_1320_1797_DeLimited.zip 111k .zip file
post #1973 of 3472
Thanks I will test now, btw any change to the memory straps? cause someone told me that modding the straps can bump up the bandwidth.
post #1974 of 3472
In game I notice no difference anyway, it all depends on the core clock. So if we can bump you up as high as me at 1438Mhz and just maybe 2188Mhz then that's it. Huge performance. On cool & stable running.

It can bump bandwidth but i noticed no difference in game so I stick with stock timings at 2188mhz 280GB/s... With different timings I was very unstable above 2110mhz... plus stock timings on 2188mhz is faster than timings on 2110mhz. Stock timings is most stable.
post #1975 of 3472
do you know each value in the strap is responsible for bumping up the bandwidth ?
post #1976 of 3472
My GPU clock is hovering around 1438 down to 1390 with temp at 61c and memory gave me 250+ error at 2.5k and 5k at clock of 2188 but rock stable up to 2133 but only tested with heaven
post #1977 of 3472
You can bump up bandwidth all day, but the stock timings were designed around "Complete Stability". With 1797Mhz we achieve 230GB/s error free. That's not bad at all for Polaris 4GB, plus your packing a Polaris 10 480 Core with some ROP's and TMU's disabled is all. I was able to pull 1,953Mhz on the 4GB modules with loads of errors but near the fastest around. Increase voltage didn't help and adjusting timings didn't help. It prefers no more than 1797Mhz ram and 100% stable at stock timings and stock voltage.

Focusing on the Core is what matters. Increasing the Giga Flop Output near much faster GPU's. It's rated like 5.8GFlops, I had the 480 up to 6.75GFlops on stock 65288 voltage. That's 16.38% more Giga Flops total throughput. The memory speed didn't help that number. The Core Clock helps that number and the ability of the core to maintain as high of clocks as possible. Which is why the BIOS I sent is only Step #1 for more performance. The first BIOS isn't the fastest, it's the 10th BIOS that's the fastest and most stable. Fiddling with the states so when it has to throttle which it must, it only goes down a little so maintaining high performance.

If set 1,438Mhz core that's solid but must throttle to stay within 75C Limits to my defined 1433Mhz... Then if needed 1416Mhz... Again if needed 1400Mhz... 1366Mhz.. 1333Mhz.. and so on... Stay well up there on it's big end maintaining way faster than stock performance all on stock voltage values. Meaning 65284, 65285, 65286, 65287, 65288. thumb.gif
post #1978 of 3472
Quote:
Originally Posted by chris89 View Post

You can bump up bandwidth all day, but the stock timings were designed around "Complete Stability". With 1797Mhz we achieve 230GB/s error free. That's not bad at all for Polaris 4GB, plus your packing a Polaris 10 480 Core with some ROP's and TMU's disabled is all. I was able to pull 1,953Mhz on the 4GB modules with loads of errors but near the fastest around. Increase voltage didn't help and adjusting timings didn't help. It prefers no more than 1797Mhz ram and 100% stable at stock timings and stock voltage.

Focusing on the Core is what matters. Increasing the Giga Flop Output near much faster GPU's. It's rated like 5.8GFlops, I had the 480 up to 6.75GFlops on stock 65288 voltage. That's 16.38% more Giga Flops total throughput. The memory speed didn't help that number. The Core Clock helps that number and the ability of the core to maintain as high of clocks as possible. Which is why the BIOS I sent is only Step #1 for more performance. The first BIOS isn't the fastest, it's the 10th BIOS that's the fastest and most stable. Fiddling with the states so when it has to throttle which it must, it only goes down a little so maintaining high performance.

If set 1,438Mhz core that's solid but must throttle to stay within 75C Limits to my defined 1433Mhz... Then if needed 1416Mhz... Again if needed 1400Mhz... 1366Mhz.. 1333Mhz.. and so on... Stay well up there on it's big end maintaining way faster than stock performance all on stock voltage values. Meaning 65284, 65285, 65286, 65287, 65288. thumb.gif

I totally agree with you but I am working on a bios for my other 4gb rx 470s for mining purpose but I want to get the bandwidth as high as I can so if you can help me with this matter I will be thankful .
the Bios you just gave me is rock solid stable on EVE online at 4k with 0 error I think my GPU is slowing down to keep vrm cool cause it start to slowdown on core freq when I started to hit 72c on the vrm.
post #1979 of 3472
Cool dude. Yeah I mean 1797Mhz is ideal on the 4GB modules. I haven't tested a reference 4GB card to be 100% for sure. You said you can do 2050Mhz error free? I guess we could at-least try it. haha

For mining and leave and forget about it with ease is 75C. Anything above that it's possible the fan RPM won't be sufficient and VRM could continue to rise past 75 and continue to rise in the 80's. Well up in the 80's is when we are likely to crash eventually, possibly unless lots of RPM. Unless Noise is of 0 concern?

For me to get 6.75 GFlops I had to set 88C and crank fan way more as core and VRM would hover around 70C. Which is 18C less than limit, ie max throughput. Your mining and we need to increase your Compute performance. Which is the GFlops output. Memory doesn't improve GFlops. It's the ability to hold the clock with RPM while staying below the limits set, make sense? That's the window of "Peak Performance". When we are in that "Window" of performance of 18C give or take as temperatures rise/ fall.

Let me know. I can work on something different for you.
post #1980 of 3472
Here you go chris, VRM and thermal pad below:

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