Quote from: pbfarmer on April 24, 2019, 08:42:24 PM

Quote from: frozen80 on April 24, 2019, 07:49:30 PM

Hi guys,

I have a Sapphire Nitro+ Vega56 with default bios and Hynix memory with the defaults:

Code:

GPU 0: Vega 10 XL/XT [Radeon RX Vega 56/64] Memory state: 0x118 (800MHz)
Timing 1 CL: 18 RAS: 24 RCDRD: 22 RCDWR: 10
Timing 2 RCAb (RC): 37 RCPb (RC): 37 RPAb (RP): 13 RPPb (RP): 13
Timing 3 RRDS: 3 RRDL: 3 RTP: 6
Timing 4 FAW: 13
Timing 5 CWL: 6 WTRS: 4 WTRL: 4
Timing 6 WR: 12
Timing 7 RREFD: 7
Timing 8 RDRDDD: 3 RDRDSD: 2 RDRDSC: 1 RDRDSCL: 3
Timing 9 WRWRDD: 3 WRWRSD: 2 WRWRSC: 1 WRWRSCL: 3
Timing 10 WRRD: 1 RDWR: 18
Timing 12 REF: 3200
Timing 13 MRD: 4 MOD: 12
Timing 14 XS: 216
Timing 16 XSMRS: 216
Timing 17 PD: 7 CKSRE: 8 CKSRX: 8
Timing 20 RFCPB: 96 STAG: 7
Timing 21 XP: 7 CPDED: 2 CKE: 7
Timing 22 RDDATA: 17 WRLAT: 4 RDLAT: 14 WRDATA: 1
Timing 23 CKESTAG: 2
RFC Timing RFC: 176

Until now the only value i could change was --ref 12800 which increased the hashrate from 18.5 to 19.5 kh on cn-turtle.
I'm using TR4.4 with L22+22 and driver 18.6.1.
Unfortunately with other values posted here i had no luck Sad

What values do you think i could try to change based on my defaults?

The settings I've found to generally have the most impact after REF are RP (then change RC accordingly using RC = RP + RAS), and RCDRD/RCDWR. Just start dropping them 1 at a time until you see errors, then go back 1. Work w/ one parameter at a time so you know which is causing the errors.

hey farmer, are you still using ppt at all? the ones from the past?