@elisw DRAM speed and timing is defined in CPU and the motherboard only wires-up them together.
CFL new spec for routing means that Z370 boars with CFL cpus can handle higher speeds but on lower ones like 2400-3000MHz there should be absolutely no issue as the SKL/KBL boards were designed for it.
(As long as the ram-type is supported in the original bios)
Edit: tested on MSI B150 bazooka + i3-8100, was not able to set higher speeds then 2666Mhz on it in XMP, default falls on 2133. (ram used: Crucial Ballistix Elite 8GB 3200)
Please tell to us what you did for working PCI-E on this MB with 8100/8350K?
Pin damage is indeed caused by the 8700K, because of his power supply is the opposite! If you just use the i3 8100 does not cause pin damage, in fact, has been proved that you can only modify the BIOS, you can perfectly support the i3 8100, including PCIE!
Hi @shixinyuan
can you share the guide-lines to get pcie working on other boards ?
Add the power damage: "because of his power supply is the opposite"
How can be any pin on 8700k different then i3-8xxx if they are the same pinout and spec for z370 boards ? I do not understand the reason behind this finding.
Thanks
Hi All,
Thank you for a very interesting thread. I am currently contemplating building a mini-ITX system with a i3-8100 - could anyone perhaps confirm or otherwise that the ASRock H110M-ITX would be suitable for this task, following the bios mod? This would be a substantial saving over a Z370 ITX board with features such as overcloking which I would not need in a ITX build and with a locked CPU.
As for the matter of 8700k vs say 8100 pinouts, I guess it is possible that while the socket / CPU pinout is obviously physically the same, the additional (supposedly opposite) power pins on the 8700k are simply left as N/C on the lower model chips due to lower power draw and hence not an issue - just a thought.
@mtothaj I confirm ASRock H110M-ITX can work very well with i3 8100.
I can make a BIOS file for you .
@LittleHill Replace CpuInitDxe module extracted from the same manufacturer Z370 may solve voltage and freq problem. Have a try.
Thanks - I would really appreaciate if you could upload the modified bios for this board.
As for the flashing proces - my understanding is that I would initially need a 6gen CPU (which I am fortunately able to borrow) to fire the board up and then flash the modified bios file from within bios - is this correct or is there a better process to follow?
Also just to ask, does the modified bios have in effect microcodes allowing all Skylake / Kaby / Coffee to run or is is just Coffee?
@dsanke so far no success
Replaced CpuInitDxe on ASUS Z170-PRO by one from ASUS Z370 A AS. Voltage and PCI-E issues still there.
Thanks - I would really appreaciate if you could upload the modified bios for this board.
As for the flashing proces - my understanding is that I would initially need a 6gen CPU (which I am fortunately able to borrow) to fire the board up and then flash the modified bios file from within bios - is this correct or is there a better process to follow?
Also just to ask, does the modified bios have in effect microcodes allowing all Skylake / Kaby / Coffee to run or is is just Coffee?
A SPI Programmer is better than a CPU to flash BIOS , it’s very cheap here but I dont’t know the price at your place.
Supporting coffee-lake i3 doesn’t affect working with skylake or kabylake CPU.
What’s your motherboard 's model ? H110M-ITX has some other varients like AC or D3 ,etc.
The motherboard model is ASRock H110M-ITX (90-MXB0N0-A0UAYZ): http://www.asrock.com/mb/Intel/H110M-ITX/
I have a cheap SPI programmer (CH341A) and the bios on the board is socketed so I guess flashing this way is also a possibility if it cannot be done from the bios.
My only concern would be that from what I recall sometmes when flashing via external programmer the unique board information such as MAC address, serial no. etc. is removed / overwritten.
The motherboard model is ASRock H110M-ITX (90-MXB0N0-A0UAYZ): http://www.asrock.com/mb/Intel/H110M-ITX/
I have a cheap SPI programmer (CH341A) and the bios on the board is socketed so I guess flashing this way is also a possibility if it cannot be done from the bios.
My only concern would be that from what I recall sometmes when flashing via external programmer the unique board information such as MAC address, serial no. etc. is removed / overwritten.
Make a whole flash backup before flash . And if you find you lose something, you can find them in the backup.
And I flashed B150M Pro4 but have nothing lost.
Does it have GUID FCCCE259-07E1-417A-A755- EOF2CF39295E ？
Does it have GUID FCCCE259-07E1-417A-A755- EOF2CF39295E ？
1) I have taken the FCCCE259-07E1-417A-A755-E0F2CF39295E from Asus Z370 A and have put it into Asus Z170-PRO (to not a successfull try as previously stated,board boots and everything but voltage and PCIE problem remained)
2) Some ASRock boards seems to have different GUID for CpuInitDxe then Asus Z370, for example ASRock Z170 Gaming bios you sent states CpuInitDxe under 62D171CB-78CD-4480-8678-C6A2A797A8DE
… migh look into that.
3) As well there is the PowerMgmtDxe (GUID: F7731B4C-58A2-4DF4-8980-5645D39ECE58 )…
Any ideas?
Does it have GUID FCCCE259-07E1-417A-A755- EOF2CF39295E ？
1) I have taken the FCCCE259-07E1-417A-A755-E0F2CF39295E from Asus Z370 A and have put it into Asus Z170-PRO (to not a successfull try as previously stated,board boots and everything but voltage and PCIE problem remained)
2) Some ASRock boards seems to have different GUID for CpuInitDxe then Asus Z370, for example ASRock Z170 Gaming bios you sent states CpuInitDxe under 62D171CB-78CD-4480-8678-C6A2A797A8DE
… migh look into that.
3) As well there is the PowerMgmtDxe (GUID: F7731B4C-58A2-4DF4-8980-5645D39ECE58 )…
Any ideas?
ASRock 200 series also have voltage problem and its CpuInitDxe is FCCCE259-07E1-417A-A755- EOF2CF39295E
And in other manufacturer’s motherboard , the older version without kabylake support.Its CpuInitDxe is at 62D171CB-78CD-4480-8678-C6A2A797A8DE.
But after upgrade to support kabylake , its GUID changed to FCCCE259-07E1-417A-A755- EOF2CF39295E.
Maybe ASRock 100-series MB recognize i3 8100 as a engineering sample of skylake/kabylake.
I replaced MSI B150i Gaming Pro’s CpuInitDxe from MSI Z370i and got voltage and frequency fixed.
Thank you I will check it with GigaByte mb tomorrow.
What about first PCI-E on MSI B150i? Still have a problem?
Thank you I will check it with GigaByte mb tomorrow.
What about first PCI-E on MSI B150i? Still have a problem?
Unfortunately the main PCI-E is still broken.
Hi @rootuser123 , thanks
Can you share the exact GUID please ? (image shows only partial GUID and not all bios files have the "GUID name" in them.
(I know where you are trying to go with this, just to make sure that i get the suggested modules right.)
cpudxe GUID: B03ABACF-A532-5E78-ACA0-B11F765B3AFD
cpuspSMI GUID: 116E1ACF-2533-4CC2-820A-BBC10A2AB07C
cpuIOdxe GUID: BAE7599F-3C6B-43B7-BDF0-9CE07AA91AA6
amicpufeatures GUID: 10B12ADD-F5E2-CC78-5CA0-B77F76223ACD
Thanky for GUIDs!
Anybody have tested it?