R_Timings - Encode/Decode RX/R9 Memory Straps - Page 6 - Overclock.net - An Overclocking Community

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R_Timings - Encode/Decode RX/R9 Memory Straps

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post #51 of 70 (permalink) Old 11-11-2017, 09:19 AM
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post #52 of 70 (permalink) Old 11-11-2017, 11:03 AM
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I want to check strap by R_Timing and OhGodADecode. I not undestand how to run OhGodADecode. I am use ubuntu.
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post #53 of 70 (permalink) Old 11-11-2017, 02:16 PM
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I would assume you just type the name of the binary, followed by a space, and then the strap...but I've never used that on Linux so can't say for sure.

I believe this is the thread where they were originally posted but I don't see instructions for it in the OP. If you read through the thread you might see a post from OhGodAGirl or Wolf0 or someone explaining the syntax.

https://bitcointalk.org/index.php?topic=1758267.0
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post #54 of 70 (permalink) Old 11-12-2017, 07:23 AM
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Quote:
Originally Posted by bardacuda View Post

I would assume you just type the name of the binary, followed by a space, and then the strap...but I've never used that on Linux so can't say for sure.

I believe this is the thread where they were originally posted but I don't see instructions for it in the OP. If you read through the thread you might see a post from OhGodAGirl or Wolf0 or someone explaining the syntax.

https://bitcointalk.org/index.php?topic=1758267.0
Ok. Thank you!
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post #55 of 70 (permalink) Old 01-26-2018, 07:32 AM
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@Vento041 Thank you for the tool! Imaginary +REP to you. (Until we get it working... )
I was doing my own research on decoding the straps but I found your tool and found the few unknowns.

I read the thread and I got very curious at the following:
Quote: Originally Posted by bardacuda View Post
Nerdralph tool always just sets 4 values:
  • tRRD = 5
  • tFAW = 0
  • t32AW = 0
  • ACTRD = 0x10

*snip*
Isn't setting FAW and 32AW to 0 dangerous with regards to current spikes when multiple ACT are called to a single bank?

I can understand it going as low as a few cycles (i.e. tFAW=8) at <1800MHz, but less than that seems a bit... risky.

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post #56 of 70 (permalink) Old 05-16-2018, 02:45 PM
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@Vento041 Heads up, OhGodADecode has a new version. For 3 monhts already. Are you going to update the R_Timings?

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post #57 of 70 (permalink) Old 06-23-2018, 12:14 AM
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I don't think vento needs to since the ohgodadecode.h(the only part this tool uses) hasn't been changed in over a year according to github.
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post #58 of 70 (permalink) Old 01-05-2019, 07:35 AM
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Guys do you now how to decode the last hex Timings?

####MC_SEQ_MISC####
MC_SEQ_MISC1 = 0x2014030B
MC_SEQ_MISC3 = 0xA000897A
MC_SEQ_MISC8 = 0x00000003
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post #59 of 70 (permalink) Old 01-05-2019, 11:56 AM
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Quote: Originally Posted by feedtek View Post
Guys do you now how to decode the last hex Timings?

####MC_SEQ_MISC####
MC_SEQ_MISC1 = 0x2014030B
MC_SEQ_MISC3 = 0xA000897A
MC_SEQ_MISC8 = 0x00000003
SEQ_MISC3 = 0xA000897A

Those are are like this:

The A is EDC Hold Pattern.
The 7 is CRCWL and 9 CRCRL. Maximum value is 7 in decimal for CRCWL and 3 for CRCRL. They are tied together. Meaning, changing one, will change the hex bit for the other as well.

EDC13Inv is tied to CRCWL and CRCRL, several values are mixes in those bits. In the above, the 9 is as well EDC13Inv. Can be only 0 and 1.

MC_SEQ_MISC1 = 0x2014030B

The B is WLmrs and CLmrs. They are tied together.

The 3 is WR. Those are the only ones that actually may matter. Everything else shouldn't really be touched.

Trying to understand them is hard.

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post #60 of 70 (permalink) Old 01-15-2019, 03:58 AM
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Hi guys. Wondering you any of you got an idea how to get the timings which are used by the driver when "memory timing level" is active.
I've managed to track it down to the
Code:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000\PP_CNEscapeInput
registry key, but is just writes 00,01,02 (aka memory timing level) and thats it.
That means that the timing must be generated on the driver initialization.

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