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  Topic Review (Newest First)
07-17-2019 10:36 PM
apple020997
Quote: Originally Posted by sideeffect View Post
If it helps it is consistent with how my 2700x behaves. The main problem seems to be getting the PC to boot at extreme undervolts and be stable when cold booting. Once system has been on a while it does undervolt lower.

I tried to work around this behavour unlocking AMD CBS and changing power states. I tried changing PO, P1 and P2 stock frequency for example setting P2 at 2GHz and P0 at 3.2GHz in order to hopefully get it to cold boot at lower undervolts. I did get some joy but it was still inconsistent.
I'm relieved! I thought it was some weirdness/bugs of new AGESAs.
07-17-2019 10:35 PM
apple020997 *deleted*
07-17-2019 05:08 PM
Veii Ty a lot @1usmus
You haven't found a way so far to fully binary export AGESA from bios to bios ?
* Frankenstein resolve~
07-17-2019 12:28 PM
1usmus 8E38A88A - new AMD_CBS guide for ZEN 2
07-16-2019 06:14 AM
viilutaja If anybody has a modified Gigabyte Gaming 3 B350M bios, with all the unlocked features- let me know!
07-15-2019 12:18 PM
Veii
Quote: Originally Posted by 0razor1 View Post
Guys,

Any help with an x370 Taichi - can it be modded at all? Just scouting this thread..
Nothing "done" , there is a representive of ASRock "JZ" on the German forums and he does work as a Systems Integrator, if you want to find him
He also accepts any kind of bios feature requests , aka unlocking stuff - as we normally had all the features open on X399

There will be mods after I find out how to trigger flashback on it and repair my semi-bricked taichi
So far I have no board to play with , soo the only person who does design BIOSes is JZ (which i've seen)
* before you mod it, be sure to find and remove the verification capsule, else you'll get problems
07-15-2019 06:23 AM
0razor1 Guys,

Any help with an x370 Taichi - can it be modded at all? Just scouting this thread..
07-14-2019 01:47 AM
sideeffect
Quote: Originally Posted by apple020997 View Post
Another super weird thing I noticed is about the undervolt of my 2700X.
I can take 50mV (nothing more) off of the CPU voltage any day without a single hitch, including super heavy tests like Prime95 and Linpack Xtreme, but sometimes my PC doesn't boot (but I can enter the BIOS). If I shut it down and restart it everything is A-OK (stress tests included). A couple of times I had to set it at -35mV for booting purposes.
Yesterday I tried a bigger UV (-87mV). Everything worked perfectly, temps were lower, all good. Today I tried turning on my PC and still no boot, same after restarting. If I set the BIOS to -50mV everything is as usual. Strangely enough, I can't try it at -87mV, no boot but BIOS.

I am speechless to this inconsistent behaviour.
If it helps it is consistent with how my 2700x behaves. The main problem seems to be getting the PC to boot at extreme undervolts and be stable when cold booting. Once system has been on a while it does undervolt lower.

I tried to work around this behavour unlocking AMD CBS and changing power states. I tried changing PO, P1 and P2 stock frequency for example setting P2 at 2GHz and P0 at 3.2GHz in order to hopefully get it to cold boot at lower undervolts. I did get some joy but it was still inconsistent.
07-13-2019 09:26 AM
apple020997 Another super weird thing I noticed is about the undervolt of my 2700X.
I can take 50mV (nothing more) off of the CPU voltage any day without a single hitch, including super heavy tests like Prime95 and Linpack Xtreme, but sometimes my PC doesn't boot (but I can enter the BIOS). If I shut it down and restart it everything is A-OK (stress tests included). A couple of times I had to set it at -35mV for booting purposes.
Yesterday I tried a bigger UV (-87mV). Everything worked perfectly, temps were lower, all good. Today I tried turning on my PC and still no boot, same after restarting. If I set the BIOS to -50mV everything is as usual. Strangely enough, I can't try it at -87mV, no boot but BIOS.

I am speechless to this inconsistent behaviour.
07-11-2019 01:54 PM
hazium233
Quote: Originally Posted by Unknownm View Post
Would it be possible to mod Asus ROG STRIX B450-F Gaming , BIOS and add DRAM Boot Voltage?
In general, yes.

Poking about in my B350-F bios (5008) I haven't seen it in there though. For things like Spread Spectrum and VDDP you should be able to "unhide" them if you follow one of the guides in the first post. But since I can't see Boot Voltage, I am not sure how to change it.

I would have thought on these boards that they just boot the set voltage, but I have no idea. Your B450 may be different of course, you can look at your bios with AMIBCP and see if it is in there.
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