Re: AMD Mem Tweak - Read/modify mem timings on the fly - [Vega Friendly] [Win/Linux]
@eliovp sorry I do not know how quotes works on this forum.
Anyhow HBM2 on vega64 with Samsung. It does not seem to matter what setting you put in. I can do some screen shots. I mean the tool reads the setting you imput...but it does not have any actual effect on anything...as if it is being ignore.
Anyhow HBM2 on vega64 with Samsung. It does not seem to matter what setting you put in. I can do some screen shots. I mean the tool reads the setting you imput...but it does not have any actual effect on anything...as if it is being ignore.
Yeah, i'm aware ;-)
Check my post above
this part here
Quote
For HBM2 you can raise tCL to offer a little bit of extra stability.
It is however a fact that changing this, or lowering this to a crazy number won't have any effect.
I read somewhere that there are two places these timings are set, on the ASIC and on the RAM side.
The ASIC side is the one being changed here, which is not a problem, however, the RAM value is the one being used. (This only applies to Cas Latency and Write Latency i believe)
Thus, to be able to change this, we're going to have to change vbios strap or do this before the timings get loaded into the registers.
It is however a fact that changing this, or lowering this to a crazy number won't have any effect.
I read somewhere that there are two places these timings are set, on the ASIC and on the RAM side.
The ASIC side is the one being changed here, which is not a problem, however, the RAM value is the one being used. (This only applies to Cas Latency and Write Latency i believe)
Thus, to be able to change this, we're going to have to change vbios strap or do this before the timings get loaded into the registers.
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