@mtothaj I can't explain it but I'm now having great success with the older 2103 bios. Used coffeetime this time and gave it a go to decide whether to keep this 9900k or go back to the 9700k.

For the first time ever, it seems to be reliably booting with the ram at 3200. I wasn't able to achieve this with any of the 3xxx bioses, but had previously confirmed the ram to be capable with a b350/1600ae.

This is in sharp contrast to a month ago when I tried 2103 and wasn't even able to boot 4 dimms until I removed 2 and forced 2133mhz.

Now need to figure out how to get full cpu stability again. Was running 49x allcore with 1.0 ia ac/dc loadline and llc1.

With 2103 and ht enabled, I'm currently trying 48x with 1.1 ia ac/dc loadline / llc1, but am still seeing occasional errors on the throttlestop random clock test. This is with c6-c8 disabled. Unfortunate that adaptive voltage doesn't work properly. Haven't tested the stock 1.6 loadline-- I imagine it'd work but with excessive voltage

edit: somehow missed this:

Zitat von Aureliano im Beitrag #955

---

Adaptive turbo voltage only kicks in when core ratio is higher than maximum turbo boost. 1.008 V is set by VID when core ratio is 40 in BIOS.

---

Anyone have a proper 300-series board with an igpu able to confirm stock GT ac/dc loadline values? My only reference is a laptop: dell g3 3590 w/ 9300h is at 2.7mohm.

asus z170 pro gaming/aura + 9900k, and I'm seeing 20mohm! May be another value that needs to be manually set for safety



edit: there's no exposed bios setting for gt ac/dc loadline. with the "default" 20.027mohm, aida64 gpgpu benchmark will expectedly peg 1.52vid, with reported "cpu gfx" voltage not drooping much below (~1.50v)

@ziddey - If you need some hidden BIOS setting exposed, please make a thread in BIOS requests and I can help!
In that thread, please link me to the stock BIOS download page (not direct BIOS download link).
Then explain which exact setting you need exposed, and upload the already modified mod BIOS you want edited, and I will make the setting visible for you.

Looks like it should be 3.1mohm.

@Lost_N_BIOS thanks, maybe down the road, I'd be interested in unhiding as many menu options as makes sense, but for now, I'm down to just experiment with manually setting values with setup_var.

Attached is the dump from ifr extractor. May be relevant to search for "GT-" to find associated ac/dc loadlines (sliced and unsliced). However, these have two defaultids and I'm not sure how to set a proper value since it seems setup_var only allows setting 1 byte?






Anyone else able to confirm sky high gt loadlines? I'm afraid this could indeed affect longevity if an actual 3d load on the igpu will have it requesting 1.52v.

edit: setting manual voltage of 1.2v for now. Seems stable at 1200mhz. From what I've seen, ~1.3v is about nominal. Of course, this means at lower clocks, it's still pushing 1.2v, which results in a reported gt power consumption of ~0.3w at idle vs "<0.1w" before. But is this manual voltage for both slice and unslice?

Hello
I have used
software:
coffe time
bios 3610 from
https://www.asus.com/us/Motherboards/Z17.../HelpDesk_BIOS/

hardware
board asus z170i pro gamming
cpu i5-9600k (P0)
ch341a programmer (extracted bios chip, and flashed with other pc)

all works except intel igpu, i can only boot with external gpu, and now (3 weeks later) I have realized I can not do a virtual machine pasthrougth

is this normal or i did somthing wrong or i missed some info?


edit @ziddey request not z3xx board is z170 but maybe it my helps in your research

@kixezi you mean like gpu passthrough? Did you enable vt-d in bios?

Which patches did you apply with coffeetime? Updated vbios/gop?


Thanks for the screenshot. 3.1 is the correct value. Maybe it's only affecting 2xxx bioses or r0 chips?



edit: how come you went with 3610 instead of 3805? not that it'd make a difference; just curious

Also, I'm using igpu as primary boot along with an rx580. asus z170 pro gaming/aura. Used both 3805 and 2103 bioses, 8600k (u0), 9700k (r0), 9900k (r0)

@ziddey - If you're simply changing settings via grub/setup_var, all the settings in your image are all using different offsets, so not sure what you are confused about there?
VarOffset/Varname 0xxx offset value is what you use in setup_var

Example for first setting top/bottom
VR Config Enable -
Top = 0x169
Bottom = 0x16A

What you see may just be incorrect readings, due to incorrect or invalid reporting, or software incompatibility.
To be 100% sure, you'd have to locate somewhere on the board you could measure the actual voltage via DMM

@kixezi - Is your CPU retail or ES/QS sample?
Need to see the BIOS you programmed in, or you need to give more info on what all you patched (as asked above), specifically in regards to vBIOS/GOP due to >> Processors revisions P0 and R0 require VBIOS 1059 or later for the integrated video core to work.

@Lost_N_BIOS yeah I have no problems setting 1byte vars, for example speedshift with setup_var. But the GT AC/DC loadline vars are 2 bytes. I need to figure out how to set those.

I haven't physically confirmed voltage, but it does report graphics voltage on top of gpu vid, and it indeed is going up to excessive values. Haven't explored further since manually setting to 1.2v and confirming voltage and stability.

@ziddey - Ohh, I see what you mean now! It looks that way due to how they are applying Auto. Both are disabled options either way you choose there.
In this case, I would first make the setting visible in BIOS, change it, and verify it actually changes, before trying to do anything via setup_var, because it may not change properly with setup_var, not sure. << This is the much easier thing to do here!

These settings are stored as >> 1/100 mOhms. A value of 100 = 1.00 mOhm, and 1255 = 12.55 mOhm. Range is 0-6249 (0-62.49 mOhms). 0 = AUTO/HW default
^^ So, once entered at BIOS interface, you'd have to then see how stored in NVRAM, then you'd know how to give setup_var a value (may be straight hex, or in decimal, or may be either one in little endian etc), this would need checked.

* Edit - OK, I did a test edit - I checked this on 3805 BIOS, and it does not match what you showed above, what BIOS are you using so we can both look at same things (in case it matters)
This is what is GT-Unsliced AC Loadline in 3805 >>

AC Loadline, VarStoreInfo (VarOffset/VarName): 0x5CC, VarStore: 0x1, QuestionId: 0x2CF, Size: 2, Min: 0x0, Max 0xF424, Step: 0x0 {07 94 67 02 69 02 CF 02 01 00 CC 05 10 11 00 00 24 F4 00 00}
Default: DefaultId: 0x0, Value (16 bit): 0x0 {5B 07 00 00 01 00 00}

I set default to 6249 (Max) for above, and it's stored in NVRAM as little endian 69 18 aka 0x1869 = 6249 Decimal. Since setup_var is changing NVRAM value, you would use this info to set via hex in little endian (not decimal as you'd enter in BIOS)
So you just need to figure out what you want to set, based on this info, and then try to set with setup_var

As for giving that to setup_var, not sure if it would accept 6918 formatting or would need to be typed at 69 18, but it should take it one of those ways
example >> setup_var 0x5CC 6918 / 69 18 (try both, if needed)

setup_var may not be able to edit this deep offset, you may need to use RU method, and that would actually make this a lot easier, since there you will direct hex edit and manually set both bytes yourself (in this example that would be 0x5CC-5CD)
Here is how to do RU method, if you are not familiar - Go to section 2.2 and make bootable USB with RU program, then read 2.3-2.5
http://forum.notebookreview.com/threads/...-issues.812372/

* Please note, in this case you are editing in "Setup" as the guide shows, but not all variables are stored here, so some changes you may may not always be in "Setup"
You can see where it's stored with the VarStore: 0x1 << Value in the string, then find the matching varstoreID (when it's not Setup)
Example >> VarStore: 0x13 >> = VarStore: VarStoreId: 0x13 [90D93E09-4E91-4B3D-8C77-C82FF10E3C81] - CpuSmm (So anything with this varstore in string, would be edited in CPUSMM and not in Setup.

@ziddey
I enabled all VT + Vd in bios , the problem is I have no option for igpu in bios, even a bootloop and bios led gpu if i try to boot without egpu


@Lost_N_BIOS
yes, it is a retail cpu.

I did try to patch everything in bios just to learn what I was doing and how bios works , however there is a lot of deep learning for understand all

If you can take a look i can do it again, I am waiting for thermal past, so I have to wait some days to flash again

bios upload

https://mega.nz/file/Tqg2wbqB#TDdoCyIiho...MxytsAV6IGZ2VxQ

edit:
and NO, no dbios?gop updated

wich one i have to put???

@kixezi - Sounds like maybe you missed something with coffeetime, I will check.
Coffeetime has lots of stuff to patch, and you usually need to do it all

Yes, this is the issue >> Processors revisions P0 and R0 require VBIOS 1059 or later for the integrated video core to work.
You did not update vBIOS/GOP, see image below

I changed it , now you pointed the right way

but every time I flash it and then I check if is right, bios is corrupted and disappear all patches even microcode

tried 3 versions of ch341a software


edit Used version 1.18 full working igpu i can boot and all ok

thankyou

@kixezi - You're welcome! Yes, only certain software/versions work for read/write on some chips, you need to use what you know works for certain chip ID's
Good to hear you found the way, and have it all fixed and working now

@Lost_N_BIOS thanks! I'm on bios 2103 (9900k so no 3xxx). Definitely interested in modding in extra bios options someday but I've got a lot of research to do first.

Was finally able to do some more testing with setup_var though. I enabled VR Config for both gt sliced and unsliced. Still can't set more than 1 byte with setup_var, but I was able to work with just that one byte. Setting 0x0c (12d) to all 4 results in 0.119/0.119 reported by hwinfo64, with max gt vid of 1.12v.

Ok, so max this out to 0xff and we get 2.549mohm reported as expected, with max gt vid of 1.17v. I take it then that using setup_var to set the next byte for each setting would allow me to dial up to the reference 3.1mohm. I haven't tried RU yet.

As a test, I left VR Config enabled but the loadlines to auto, and booted up to 20.027mohm still. I wonder how it's arriving at those values.

I'm going to revert gt voltage back to auto and see if 2.55mohm loadline is sufficient for stability.

Any idea if the gt loadline spec applies to both gt sliced and unsliced?

update: been running an opencl stress test on the igpu for about 30 minutes so far with 2.55mohm loadline => 1.17vid => 1.15v reported. Will probably just keep this setting if it's stable; undervolts always appreciated :D

for comparison, with gt loadlines left at auto, igpu load would peg 1.52vid && 1.5v reported

I wonder how many others this is affecting.. could be damaging in the long term. If 2xxx bioses are pre-kbl, it'd support up to hd530 only (kbl=hd630, cfl=uhd630). Might have something to do with it

@ziddey 9900k(P0) on Maximus VIII Formula with bios 2202. Been running it for over a year now without any problems.