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X399 Professional - Flashing red light |
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jthomas2asrock 
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Joined: 03 Dec 2017 Status: Offline Points: 5 |
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 Posted: 04 Dec 2017 at 9:10am |
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OK I figured it out - the corner 4 pin power connector was sideways. The blinking red seems to indicate power issues. Once I turned it (it doesn't face out) - then the motherboard seems to work great!!
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JUANNY
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Joined: 13 Oct 2017 Status: Offline Points: 50 |
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Posted: 04 Dec 2017 at 9:39am |
You were lucky you didnt short out the MB |
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Asrock X399 Fatality Pro Gaming Bios 2.0 Threadripper 1950X Cpu cooler Enermax 360 mm TR4 GSkill 64 GB F4-2933C14Q-64GFX Windows 10 X64 PRO Version 1709 Build 16299.19 2X EVGA 1080 TI in SLI mode
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JayB33
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Joined: 04 Dec 2017 Status: Offline Points: 69 |
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Posted: 04 Dec 2017 at 10:55am |
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Well I hope everyone solves the red light error. I have just purchased this motherboard, but have not built the system yet.
Does it matter if the PSU 12v connectors are attached when you use the Flashback feature? Edited by JayB33 - 04 Dec 2017 at 10:57am |
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parsec
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Joined: 04 May 2015 Location: USA Status: Offline Points: 4996 |
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Posted: 04 Dec 2017 at 11:14am |
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If you mean the four and eight pin CPU power cables from the PSU, they should NOT be connected during the BIOS Flashback procedure. That is the point of only having the 24 pin ATX power connector connected to the board. Only have the 24 pin ATX power cable from the PSU connected to the board when using the BIOS Flashback option. Don't forget to ONLY turn the PSU switch on, do NOT press the power button on the PC case! The SATA and Molex power cables do not matter, or the extra 12V graphics power cable. Please study the procedure for the BIOS Flashback function, and note that only one of the USB ports must be used for the USB flash drive. This is taken from your board's manual: http://asrock.pc.cdn.bitgravity.com/Manual/Fatal1ty%20X399%20Professional%20Gaming.pdf  |
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JayB33
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Joined: 04 Dec 2017 Status: Offline Points: 69 |
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Posted: 04 Dec 2017 at 11:29am |
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OK, I will not attach the CPU 12v / 24v cables if it makes a difference. I wasn't intending to power up during BIOS flashback.
Do I need to use Flashback to flash the latest BIOS before I boot up for the first time, or can I use EZFlash? I will be installing a 1950x. Are there any 'bricking' BIOSes?
Edited by JayB33 - 04 Dec 2017 at 11:33am |
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MisterJ
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Joined: 19 Apr 2017 Status: Offline Points: 1097 |
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Posted: 04 Dec 2017 at 11:42am |
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JayB33, what is EZFlash? Flash Back was intended to recover a bricked BIOS (failed update). I used it for a different reason and ran it on a complete system, leaving all cables/parts in place and it worked fine. If, for some reason, you want to update the BIOS before the CPU is installed, then give Flash Back a try. Normally you should use Instant Flash from the BIOS. Please do an F9 and F10 before and after. Never use Windows BIOS update. Enjoy, John.
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Fat1 X399 Pro Gaming, TR 1950X, RAID0 3xSamsung SSD 960 EVO, G.SKILL FlareX F4-3200C14Q-32GFX, Win 10 x64 Pro, Enermx Platimax 850, Enermx Liqtech TR4 CPU Cooler, Radeon RX580, BIOS 2.00, 2xHDDs WD
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JayB33
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Joined: 04 Dec 2017 Status: Offline Points: 69 |
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Posted: 04 Dec 2017 at 11:59am |
Oh sorry, I meant Instant Flash, not EZFlash *ahem*. I was wondering if this board ships with a BIOS that needs updating immediately before booting to avoid bricking. Otherwise I will flash from BIOS using INSTANT FLASH.
Edited by JayB33 - 04 Dec 2017 at 12:00pm |
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jthomas2asrock
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Posted: 05 Dec 2017 at 5:57am |
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Another little trick I learned is it seems you can power on with just the 24 V + 8 pin 12 V connected. The 4 pin 12 V seems to be "supplemental power" for when you are truly under load.
System works great now. 4 GHz is not as stable as I had hoped. 3.90-3.95 seems good though and matches what I have seen in my Ryzen system(s). 10 GB is sweet - I'm getting 980 MB/sec over NFS! Jay |
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jthomas2asrock wrote: