Z390 Extreme 4 doesnt post
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=14825
Printed Date: 05 May 2024 at 10:37am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z390 Extreme 4 doesnt post
Posted By: fraserhutch
Subject: Z390 Extreme 4 doesnt post
Date Posted: 30 Jun 2020 at 4:03am
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Hi. I just put together a build but it wont post. I know the ram is good, because I have another system built on a Z370 Pro4 that has been working great, and I swapped out the ram between the two systems. Both sets of RAM worked on the Z370 so I know they are good. so I know the RAM is fine. All the fans are working. No beeps, just a steady pulse of the blue lights on the motherboard. I know this board at one time worked fine because I installed it on the other system until I realized I needed a different PCI slot so I got the Z370 and used that. So the Z390 *should* work. So, I read a bunch of email from this site and none of the proposed fixes seem to apply - I attached a 8-pin CPU cable to the ATX12V1 connector, a 24 pin cable to ATXPWR1. FWIW, I did not connect anything to the 4-pin ATX12V2 connector. Do I need to -I don't have another CPU cable. S When I supply power from the PSU the blue lights on the motherboard start to pulse maybe once per second. When I press the power button on the IO panel all the fans (case fan, CPU heat sink fan, and GPU fans stat up. The only think I hear is the tiny amount of crinkling that IIRC is a hard drive starting up. I get no output from my GPU. No beeps no sound, just the fans running and the steady pulse of blue lights. I hear NO beeping at all. The IO panel connectors seem to work fine - I have IO panel lights and the power switch starts the CPI and GPU fans. This is my build: ASRock Z390 Extreme 4 Intel I9-9900KF (coffee lake) CPU - no onboard graphics. Corsair Vengeance LPX DDR4 2x16GB (32GB) 3200 MHZ Hyper 212 EVO heatsink/fan. Gigabyte GEForce RTX 2060 Super Graphics card Corsair RM850 power supply. Fractal Designs Define R5 case. Crucial MX500 SSD Seagate Barracuda SATA Hard drive. I really haven't seen any means of diagnosing the issue. Thanks fr all suggestions/advice, Fraser |
Replies:
Posted By: Xaltar
Date Posted: 30 Jun 2020 at 1:50pm
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What BIOS version is the board using? It will need at least P2.30 to work with the 9900KF. Also try other display cables/outputs, often times "no POST" issues turn out to be display cable issues not getting signal to the display. ------------- 
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Posted By: fraserhutch
Date Posted: 30 Jun 2020 at 1:59pm
| I think it is the BIOS version. Looks like I am at 1.60. Gonna be fun trying to figure out how to update the bios without a working CPU. |
Posted By: Xaltar
Date Posted: 30 Jun 2020 at 4:07pm
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What are you running in the Z370 or is this an upgrade board for the same system? If you have to pick up a CPU to flash it your best bet would probably be the Celeron G4900, it is supported on all BIOS versions for that board. -------------
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Posted By: fraserhutch
Date Posted: 06 Jul 2020 at 2:21am
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Hi again. Update - I used another CPU and managed to get the BIOS updated so it boots now. However, the system will not boot if I have ram A2 or B2. The am is Corsair Vengeance LPX DDR4 3200. I can put both sticks in A1 and B1 but it only runs in single channel mode. All the parts to this system are new. Both sticks of ram are fine, I got Windows installed and tested it and it seems fine. Suggestions? |
Posted By: cryptocraze
Date Posted: 01 Jan 2022 at 3:41am
| Did you figure this out? I have the exact same memory and not getting any post or video. |