Quote from: bouc on Today at 07:35:01 AM

Quote from: grandmabtc on Today at 05:10:53 AM

I have a xfx 570 8gb (samsung memory), bios flashed, 1150 core clock - 2000 memory clock - 850 mv, most recent driver. Was expecting to get 30mhs, or at least 29, yet only getting around 27.82 https://i.imgur.com/FkrL74g.png.

Does someone know what could be? Such as maybe my bios flash wasn't so optimal, or I'm not tweaking the miner the way I should (i'm not tweaking it all, it's running on auto-tune)
Would appreciate suggestions.

hi,

Use srb polaris to pimp up your straps and set memory to 2150 (samsung goes way higher than others)
rx480 8GB samsung does 31.3 with 1150/2150 Wink

I did use polaris to flash the bios; copied ''777000000000000022CC1C00AD615C41C0590E152ECC8608006007000B031420FA8900A00300000 010122F3FBA354019'' timing strap to 1750 and 2000.
Tried to use the ''one time click patch'' at first, but after flashing the pc would crash during stress testing so I rolled back. My uneducated guess on the cause for that is since the editor recognized two memories, samsung and hynix, despite my card being samsung, that made the automated strapping edit both, which caused some sort of error. With this in mind I edited only the samsung straps and this time it endured stress testing. However, I'm not getting the performance expected, making me think I did something wrong again.

As for increasing memory, that's another thing. Before flashing I messed with overclocking and undervolting a little and recall being able to get somewhat stable performance at 2150 memory. Now I can't rise it above 2000 without getting hundreds of memory errors. At 2150 I get artifacts even.
Granted, I didn't check for memory errors on the previous overclocks, but the PC gave no signs of being stressed.

Do you think I should roll the bios back and try another flashing? And any suggestion on how I should go about it?

Some pics for reference:
GPU-Z (post flash) : http://gpuz.techpowerup.com/21/03/30/nu2.png
Polaris with modded bios: https://i.imgur.com/1Was84K.png
Polaris with original bios: https://i.imgur.com/pkUTTPz.png