Asus Strix Z270i - Issues, Red CPU LED..

[Malkan]

Hey,

So i built a new PC a few days ago and today when turning it off and moving it to a new desk, issues occured. (Rarely turn my pc´s off). After having it moved to the new desk, i plugin all the cables and start the pc - Wont POST and CPU_LED is lightning solid red. Pressed reboot button, took 5-10 sec then it rebooted and started flawlessly into windows.

I can reproduce the issue 8/10 times (tested) by turning PC off, pull power-cord out and wait 3-5 min each time, then it most likely wont post and getting stuck with red cpu led. It did happen once when i tested just rebooting system a few times aswell. I have reseated CPU + Cooler, no joy. Cant spot any bent pins, looks fine to me. I have no OC, only XMP turned on (3000mhz Corsair) rest is stock + fast boot turned off. The PC works flawlessly in Windows, been running stress-tests (Realbench) for 2 hrs. Will run overnight aswell.. Works fine in games, been playing Wildlands all week without hiccups.

I tried to reproduce the error with XMP turned off = Bios completely stock. Only tried 3 times, it booted every time fine, i will try more times to reproduce the issue with XMP off. So far with what i have tested, it seems to be a issue with xmp/bios, any suggestions? Been using google most of the day and it seems to be the exact same issue that people HAD with Asus z87-a, been reading quite a few topics about that which match my issues very well.

Specs:
Asus Strix z270i-gaming @ latest bios 0607 - Same issue on both available bios.
Intel i7 7700k (Delidded with Rockit88 delid tool) - works fine, had to be done because of 85+ temps @ stock in games, 90+ Aida64.. Now around 65c.
16GB Corsair 3000mhz ddr4 - CMK16GX4M2B3000C15
Asus GTX 1080Ti
Samsung 960 EVO 250GB M2 + 2x 250GB 850EVO.
Corsair AX1200i PSU
Corsair H100i v2 cooler
Corsair Obsidian 250D

Hopefully someone have a answer 🙂 Thanks!

[d0wnjumper]

same issue with trident z rgb 3200 mhz 14cl. before that mainboard i used the MSI Z270i with same components, and i didnt got any issues there, so its 99% asus fault.

[No0B25]

Generally speaking I think the Z270i is a wonderful little board and the only feasible one for me, as I wanted an optical out which the comparable AsRock board doesn't have. The second M.2 slot is a really nice extra, but I'm not so sure about the temperatures given that even though the heatsink is "isolated" from the PCH heatsink, it still is held in by screws and lays on top of it, so there's still some heat transfer going on.

Anyway, I also have problems with POSTing with my Z270i on 0607 BIOS. Right now I have a 7700K at stock clocks, Corsair CMK32GX4M2B3000C15 and a Corsair RM650i PSU. No eGPU for now. I'd like to have the RAM run at DDR4-3000, but it correctly POSTs maybe 1/4th of the time. Changing voltages and timings within reasonable bounds unfortunately didn't help at all. In Windows and Memtest86 everything is perfectly stable. I had the AIDA64 memory stress test running for around 12 hours without any issues. Stressing the CPU is also stable and it can withstand 5GHz at 1.32v, so it's not a really bad sample I suppose.

As probably there are new BIOS versions being worked on right now, are there any known issues connected to what is happening to the others here and me that are being looked into (in the future)?

[I_G_SYME]

No0B25 wrote:
Generally speaking I think the Z270i is a wonderful little board and the only feasible one for me, as I wanted an optical out which the comparable AsRock board doesn't have. The second M.2 slot is a really nice extra, but I'm not so sure about the temperatures given that even though the heatsink is "isolated" from the PCH heatsink, it still is held in by screws and lays on top of it, so there's still some heat transfer going on.

Anyway, I also have problems with POSTing with my Z270i on 0607 BIOS. Right now I have a 7700K at stock clocks, Corsair CMK32GX4M2B3000C15 and a Corsair RM650i PSU. No eGPU for now. I'd like to have the RAM run at DDR4-3000, but it correctly POSTs maybe 1/4th of the time. Changing voltages and timings within reasonable bounds unfortunately didn't help at all. In Windows and Memtest86 everything is perfectly stable. I had the AIDA64 memory stress test running for around 12 hours without any issues. Stressing the CPU is also stable and it can withstand 5GHz at 1.32v, so it's not a really bad sample I suppose.

As probably there are new BIOS versions being worked on right now, are there any known issues connected to what is happening to the others here and me that are being looked into (in the future)?[/QUOTE

Had exactly same problems and SCAN even tested motherboard and replaced it to no effect. Seems that we all should pay attention to QVL lists. I know that when I build another Z270i system in May for a friend I will most definitely only be using recommended RAM.

[kingkajsdhaskas]

I.G.SYME@BTINTERNET.COM wrote:
Had exactly same problems and SCAN even tested motherboard and replaced it to no effect. Seems that we all should pay attention to QVL lists. I know that when I build another Z270i system in May for a friend I will most definitely only be using recommended RAM.

I AM using RAM in the QVL list.

[I_G_SYME]

kingkajsdhaskasda wrote:
I AM using RAM in the QVL list.

Hmm... I presume you have a QVL power supply as well? Have you removed battery connection and done a full BIOS reset? You can tell if this is a full BIOS reset if you have to reset the clock time as well. If so then I can offer no words of comfort. Perhaps relaxing ram timings may help. There is also a new BIOS to try. Supposedly for Intel Optane memory but if it is anything like the BIOS on my Z270G then be aware it may be buggy and make sure you have the older BIOS on a memory stick to enable "roll back". If you can live with never actually doing a cold boot then fine. Problem I had was that the system I built for a friend was being used in a living room using his TV as a viewing monitor and I was concerned that the blinking LED's would be a distraction while viewing the TV. He loves the light show so sigh of relief. Approx 75% of the time it will not do a cold boot but typically, when I went to install the system for him it booted up right away after being in the back of my car for 24hrs. GRRRRR. Enough to make you wonder about your sanity and caused me no end of grief and head scratching and searching on t'internet!!

[I_G_SYME]

I.G.SYME@BTINTERNET.COM wrote:
Hmm... I presume you have a QVL power supply as well? Have you removed battery connection and done a full BIOS reset? You can tell if this is a full BIOS reset if you have to reset the clock time as well. If so then I can offer no words of comfort. Perhaps relaxing ram timings may help. There is also a new BIOS to try. Supposedly for Intel Optane memory but if it is anything like the BIOS on my Z270G then be aware it may be buggy and make sure you have the older BIOS on a memory stick to enable "roll back". If you can live with never actually doing a cold boot then fine. Problem I had was that the system I built for a friend was being used in a living room using his TV as a viewing monitor and I was concerned that the blinking LED's would be a distraction while viewing the TV. He loves the light show so sigh of relief. Approx 75% of the time it will not do a cold boot but typically, when I went to install the system for him it booted up right away after being in the back of my car for 24hrs. GRRRRR. Enough to make you wonder about your sanity and caused me no end of grief and head scratching and searching on t'internet!!

Has anyone downloaded and used the latest 0607 BIOS for this board? Supposedly for Optane compatibility but I wonder if there is more than that buried in the code. I tried the latest Optane optimisation bios for my own Z270G machine and it was as flaky as hell. Any first adopters out there? I can't easily try this on the PC I built as it was built for a friends husband and currently resides in his living room some 20miles from me.......

[kingkajsdhaskas]

I.G.SYME@BTINTERNET.COM wrote:
Has anyone downloaded and used the latest 0607 BIOS for this board? Supposedly for Optane compatibility but I wonder if there is more than that buried in the code. I tried the latest Optane optimisation bios for my own Z270G machine and it was as flaky as hell. Any first adopters out there? I can't easily try this on the PC I built as it was built for a friends husband and currently resides in his living room some 20miles from me.......

Im running it now! The coldboot bug is still there but there where minor bug fixes for example being able to save OC profiles which i couldn't before. Maybe there are others but i haven't noticed them.

[I_G_SYME]

kingkajsdhaskasda wrote:
Im running it now! The coldboot bug is still there but there where minor bug fixes for example being able to save OC profiles which i couldn't before. Maybe there are others but i haven't noticed them.

Thanks for that info. Will maybe wait for the next BIOS update as the machine I built is running stock speeds apart from the XMP profile for the ram.

[No0B25]

Just had this happen again, but on 2400MHz 14-16-16-34 at 1.28v. The RAM is still Corsair CMK32GX4M2B3000C15 v.5.39, a 32GB 3000MHz kit. That kit is on the QVL list, just like my Corsair RM650i PSU.

I thought Kaby Lake officially supports 2400MHz, so it must be the early BIOS I suppose. I'm on 0607.

[seawolf1]

please update the latest bios 0704，may solve your problem，I had the same problem before updating，good luck:)