Z87 Extreme 4 00 fault
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=17237
Printed Date: 27 Dec 2024 at 10:23pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z87 Extreme 4 00 fault
Posted By: cdphobe
Subject: Z87 Extreme 4 00 fault
Date Posted: 13 Nov 2020 at 5:12pm
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Hi, Apologies if this is covered elsewhere but couldn't spot via search. Following a power cut last night while system was running, PC now refuses to boot. No graphics output by DVI , VGA or separate Graphics card. Fans power up to full speed but board indicator sits at 00. PC attempts its own reboot after about 5 mins but same result. System has been stable with no hardware changes for months. Please don't advise a UPS, it was on one but looks not to have shut down before it lost power (new battery was ordered 3 days ago following APC s/w prompt - that's Fri 13 for you!). Any help gratefully received. Al |
Replies:
Posted By: cdphobe
Date Posted: 13 Nov 2020 at 5:34pm
| Update. Cleared CMOS per manual, no boot at all now, no fans, no bios read out Power going through somewhere as a USB stick briefly lights up when main power switched on. I think its borked. |
Posted By: Xaltar
Date Posted: 13 Nov 2020 at 6:19pm
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00 means they system could not detect a CPU, given the circumstances I am inclined to think your PSU died (partially at least). The 00 code will happen if you don't connect the CPU 4/8pin power or if that power is low. I would try a new PSU before writing off the system  ------------- 
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Posted By: cdphobe
Date Posted: 13 Nov 2020 at 6:44pm
| Thanks for helping @Xaltar. I'm more than happy to try a change to PSU (although its a reasonable Corsair unit) but if it were PSU would that account for lower response (no fans) after a BIOS flash? |
Posted By: Xaltar
Date Posted: 13 Nov 2020 at 7:40pm
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You mean CMOS clear? I didn't see any mention of a BIOS flash. If the PSU is dead/dying then yes, it makes sense that it could be failing more and more each time you try to power it on, leading to less and less activity. -------------
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Posted By: cdphobe
Date Posted: 13 Nov 2020 at 9:54pm
| Thanks Xaltier, and yes, I meant CMOS clear rather than BIOS. Well, better a PSU than replace Mobo, CPU, RAM and cooler! Will give it a try (and I should have a low tech PSU tester somewhere too. Thanks again for your help |
Posted By: cdphobe
Date Posted: 17 Nov 2020 at 3:41am
| Update - it lives! Thanks for giving me the confidence to get stuck in Xaltar. PSU was fine but had to go through hangs at A2, A9, A6, 99 and 62, remove all PCIE cards, all drives and replace the CPU Still, got there! Thanks |