https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 10 Jun 2026 07:40:46 +0000 Thu, 14 Jul 2022 00:41:26 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=24646 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=24646&PID=100572&title=z97-extreme4-board-diagnostic#100572 Author: DECAD
Subject: 24646
Posted: 14 Jul 2022 at 12:41am

Thanks threadzipper1957,
I got no lights at all except for an intermittent single flash on both LEDS (every couple of boot attempts) and toggling the BIOS switch had no effect.
Knowing it's that serious definitely helps, so thanks again.

Take Care]]> Thu, 14 Jul 2022 00:41:26 +0000 https://forum.asrock.com/forum_posts.asp?TID=24646&PID=100572&title=z97-extreme4-board-diagnostic#100572 https://forum.asrock.com/forum_posts.asp?TID=24646&PID=100558&title=z97-extreme4-board-diagnostic#100558 Author: threadzipper1957
Subject: 24646
Posted: 13 Jul 2022 at 10:01pm

Dear Decad,

The Debug LED, should give you more info, if this stays at 00, often the CPU is defective.
Or it can be a bricked BIOS, however the board has 2 BIOS chips, and with the microswitch next to the reset/power switch, you can select the other BIOS chip.
If this works, go into BIOS>> Tools, and use Secure backup UEFI to flash the bricked chips]]> Wed, 13 Jul 2022 22:01:37 +0000 https://forum.asrock.com/forum_posts.asp?TID=24646&PID=100558&title=z97-extreme4-board-diagnostic#100558 https://forum.asrock.com/forum_posts.asp?TID=24646&PID=100336&title=z97-extreme4-board-diagnostic#100336 Author: DECAD
Subject: 24646
Posted: 18 Jun 2022 at 7:51am

Hello,
I have a Z97 Extreme4 Motherboard with and Intel Core-I7 4790K that is failing to clear POST.

We've taken it out of the case and stripped it down to nothing but the CPU, but still don't get any beep codes.
We've tried two power supplies. The first one will boot loop after starting up for a second or two and wiggling the fans. The other PSU will produce an audible click and occasionally cause the BIOS_A_LED and BIOS_B_LED to flash for a second before turning off.

All pads on the CPU appear to be clear of anything that would cause a short, and I didn't see anything on the board side even before I did a safety pass with a can of air.

Any recommendations about further diagnostic options are hugely appreciated as I don't have another CPU spare to test further.
Thanks,
]]> Sat, 18 Jun 2022 07:51:50 +0000 https://forum.asrock.com/forum_posts.asp?TID=24646&PID=100336&title=z97-extreme4-board-diagnostic#100336