+ rep for above info share, thanks
I would think this is down to varying "quality" of MC, again just "silicon lottery".
I gain performance, no clock gain AFAIK.
Fyzzz was my first participant (+rep
), he's seen performance gains, dunno about stability. He's even done crazy bench 1320/1800
You are seeing 1625MHz 390 MC + Stock BFR Timings = 1700MHz 290 MC + Stock BFR Timings, so clear performance gain. And from my recent testing lower freq = lower power consumption(link to post)
, so there is efficiency via this mod in a way.@OneB1t
My experience of 390 MC mod and how I went about it.
v0.0 circa Oct 2015 (link to posts
I copied complete 390/X VRAM_Info (Hynix AJR) into my ROM. Added stock Hynix AFR timings and only
adjusted supported memory size (80h to 40h) (not aware of density at the time). This basically was unstable at even RAM frequencies that stock factory ROM would attain, so I never checked performance. As Stilt shed no further info when I asked in linked post/thread, I abandoned project.
v1.0 circa 5 days ago (link to post
Here I only copied what I thought is 390 MC timings into my stock AFR VRAM_Info. I saw no performance gain or stability gain.
v2.0 circa 3 days ago (no link as conducted off forum)
Here I modified 390/X VRAM_Info (Hynix AJR).
a) 80h to 40h for RAM size.
b) 53h to 43h RAM density.
c) added AFR stock timings.
d) changed RAM IC ID ie text length 0B.
This I've seen consistent small performance gain, I don't think yet gained further stability, but there is no instability gaming (4hrs) or F@H (16hrs+) (1100/1525 or 1100/1575).Edited by gupsterg - 1/31/16 at 9:24am