x99 Extreme 3 - No Video
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=5975
Printed Date: 29 Jul 2025 at 1:17pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: x99 Extreme 3 - No Video
Posted By: driwashsolutions
Subject: x99 Extreme 3 - No Video
Date Posted: 03 Sep 2017 at 3:20am
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I'm having a hard time getting my newly built system to POST. I have no video on the screen. Here's my specs: Mobo: ASRock x99 Extreme3/A/ASRK Part No: 90-MXGVY0-A0UAYZ Bios: P1.80 CPU: i7-6800k, 3.4 GHz; 15MB Cach; LGA2011 Cooling: Corsair H100i v2 liquid cooler Ram: Patriot DDR4 VIPER 4 x 4GB; 2400Mhz; CL16 1.2V PN:PVE44G240C6GY also tried: Corsair Vengance RGB 2 x 8GB 3000 MHz PN: CMR16GX4M2C3000C15 GPU: 2 x AMD Radeon RX550 (4 monitor) PSU: Corsair CX500 Bottom line - I can't get it to boot or pass the POST. No video shows on screen. Please help if you can. ------------- John |
Replies:
Posted By: wardog
Date Posted: 04 Sep 2017 at 9:43am
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Your PSU is woefully inadequate. A single RX 550's min is 350w See" http://www.realhardtechx.com/index_archivos/Page362.htm" rel="nofollow - http://www.realhardtechx.com/index_archivos/Page362.htm Also, please remove the Sig advertising. |
Posted By: driwashsolutions
Date Posted: 06 Sep 2017 at 7:25am
| " rel="nofollow - So is that the main reason for the lack of video? |
Posted By: parsec
Date Posted: 06 Sep 2017 at 9:23am
No, but you probably know the reason why your PC won't start by now. If not... You're using a Broadwell i7-6800K CPU without the appropriate UEFI/BIOS version. You need at least version 3.30, but you have version P1.80. That is shown in your board's CPU support list: http://www.asrock.com/mb/Intel/X99%20Extreme3/?cat=CPU X99 boards originally worked only with Haswell-E HEDT processors, but later the Broadwell-E HEDT processors were also compatible with X99 boards IF they have a compatible UEFI/BIOS version with the appropriate processor microcode in it. Which is why you must have at least UEFI version 3.30. Unfortunately, you must either use a Haswell-E processor to perform the UEFI/BIOS update, or replace the UEFI/BIOS chip in the board with one that contains at least the Broadwell compatible 3.30 version. That chip is in a socket, so can be replaced (carefully) by the user. As I explained in the other thread you posted in, this situation is an Intel thing that they have never found another work around for. This applies to any and ALL X99 boards made by any manufacture. You can order (most likely free) a new UEFI/BIOS chip from ASRock, via the form on this page. Please provide the serial number of your board to verify ownership: http://www.asrock.com/support/index.asp?cat=RMA ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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driwashsolutions wrote: