asus z270-A not booting/no bios

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Sharingandid

Honorable
May 14, 2013
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10,510
The lights work, the fans work, just installed my i5-6700k Kaby lake CPU.
But the bios is not showing up, it's not booting and the USB ports aren't working. This is my first time installing a motherboard so I may have done something wrong but I can't figure out what. The manual makes a little sense to me but I still don't quite understand it.
Here is the pics of what I have put together http://m.imgur.com/a/O8koD
 
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Kai_Soren

Commendable
Feb 11, 2017
4
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1,510
Any luck? I have the same board. No bios post, no cpu fans starting, yet the RGB mobo lights come on. Swapped out the PSU for my old one, same thing. Tried new PSU on my old desktop and sure enough it powers on. So not the PSU. Tried ram in A2 as well. Are there some prime-A issues? I dont think its the CPU. But at this point its CPU RAM and MOBO are the only things that could be wrong. Got QVL certified G Skills ram too... so i doubt that is the issue. Have two sticks. Tried both individually. Again, wondering if this board has quality control issues?
 
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Kai_Soren

Commendable
Feb 11, 2017
4
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1,510
If you have any updates or fixes please post. As of now I have a new mobo (same one) coming from amazon on monday. Will attempt that and see if i have better luck. I will post back. Could be DOA mobo.
 
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Paul NZ

Polypheme
Sep 15, 2014
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Is it the Prime Z270-A??

If it is, it needs a BIOS update. Your BIOS is 0505, it needs 0604.

The sticker in that pic above the ram slots, is the BIOS version. The last 4 numbers.

If that's the only sticker on the mobo

Do you mean the Core i5-7600K ? (3.8GHz, 4C, L3:6M, Intel HD 600 series, 91W, rev.B0) ALL 0604

There is no I5-6700k. There's only an I7 7600k, which needs BIOS 0604 as well

Altho the only BIOS on the site is 0701 (If it's the Prime)
 
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Kai_Soren

Commendable
Feb 11, 2017
4
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1,510
What? So the bios.... For a new chip thats the Kaby lakes needs a bios update off the bat? How does one do that if it wont boot. Im in the same boat. 0505 bios sticker. I have a 7700k. What should I do? How are they selling kaby lake motherboards that need an update. I dont just have a spare cpu laying around. :/
 
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Kai_Soren

Commendable
Feb 11, 2017
4
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1,510
Patiently waiting for a response. How do you suggest we update a bios, if they dont support the chipsets the mobo says it supports? Lol.... makes no sense that a z270 wouldnt support 7th gen i7s out of the box. My mind is blown
 
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Paul NZ

Polypheme
Sep 15, 2014
20,779
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61,010
Well it supports it but if you've got the prime, thats what the site says it needs BIOS 0604 for the I5 7600k.

You've got BIOS 0505

Only way to fix it. Buy/borrow a CPU BIOS 0505 supports. Flash it then put this CPU back in.

Or take it to a shop, and ask them to do it

 
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drawde

Honorable
Sep 30, 2013
14
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10,510
I've got the 505 bios too with my Pentium Kaby Lake processor and spent a good 2 hours yesterday with ASUS support trying to figure it out and they didn't realize it is just a bios level issue and came to the conclusion that the MB is defective so I'm returning it to Amazon and getting a replacement tomorrow which will probably also be a 505 lol.
 
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drawde

Honorable
Sep 30, 2013
14
0
10,510


And the strange thing is all of the CPUs listed on their support site for this 1151 socket MB are validated for the 0604 level so it isn't even possible to get an "older" processor and upgrade the BIOS.

http://
 
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alexoiu

alexoiu

Titan
Nov 1, 2012
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I think that the BIOS thing is a false lead.
Have you RMA-ed the board, or not yet?
 
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drawde

Honorable
Sep 30, 2013
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I am getting a replacement board tomorrow from Amazon and scheduled to return the old one on Monday.
 
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drawde

Honorable
Sep 30, 2013
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I've tried all that and no signal to the monitor. Like the others here I'm using the Prime ASUS z270-A MB.

 
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drawde

Honorable
Sep 30, 2013
14
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10,510


The power LED remains lit after starting the board as well as the color LED's that emit from the bottom of the board. Mine is packed up for shipment back to Amazon so I can't take a picture of it today but I can tomorrow when I get my new shipment from them.
 
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drawde1

Prominent
Feb 20, 2017
7
0
510


I got an i3-6100 skylake so I could boot and perform the bios upgrade once I fixed my PSU problem. It still would not boot with the i3-6100 but that ended up being a PSU problem, a very strange problem. I have 2 Thermaltake Grand RGB 750W PSUs for this system. I tried them both and changed cables and still the same results as described here, some leds on but no entry on the screen or attempt to boot. I had an old PSU which I tried and the system came up with no issues. I bought 2 750W Corsairs and no problems with those either. The strange thing is that both Thermaltake PSUs failed so I didn't think it was a PSU problem. As a last resort I tried the old PSU and it worked fine.
 
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drawde1

Prominent
Feb 20, 2017
7
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510




 
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drawde1

Prominent
Feb 20, 2017
7
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510
For me I think the root problem was a bad PSU. I had a very similar issue with these PSU's using an MSI B150 PC Mate and that is where I discovered the old PSU's would allow the system to come up. I upgraded the MSI to allow the Kaby Lake to boot and this is where it is now installed. I upgraded the Z270-A BIOS using the I3-6100 but have not tried to run it with the Kaby Lake since it's installed in the MSI B150 PC Mate right now. I didn't really try to boot the Z270-A with the old BIOS and Kaby Lake CPU once the PSU issue was resolved so I'm not sure if that would have worked or not.
 
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