Asrock X470 Master SLI wont start
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=17512
Printed Date: 10 Aug 2025 at 4:16pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Asrock X470 Master SLI wont start
Posted By: DarkAvarian
Subject: Asrock X470 Master SLI wont start
Date Posted: 15 Dec 2020 at 8:23am
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Heyya there, im building up a pc and have an issue. That Mainboard wont start, its glowing red, but i cant get it started, no boot, no post, just nothin... and im quite frustrated after many hours of trying, so im askin here now. heres the setup: Mainboard: Asrock X470 Master SLI CPU: Ryzen 3900X AM4 GPU; Radeon 5700 XT Power Adapter: Kolink Enclave 600W RAM: 16 G.Skill Aegis DDR4-3000 NVME: Samsung 970 EVO Plus 500 GB If anyone could gimme some advice how to get this to work, id be really happy. Please bear my bad english skills, it isnt my native, best wishes so far, DarkAvarian |
Replies:
Posted By: cx5
Date Posted: 15 Dec 2020 at 3:52pm
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Hello @DarkAvarian, Please show us picture of everything, especially clearly showing each power plugs, i.e. did you forget the dedicated CPU power cable??? ------------- x370taichi@3.50gen4 AX750 Optane900P SN770 3800x PosdonZro4 BarrowPWM-17w>420x140x28 XFX SWFT319 6900XT MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz |
Posted By: ThreeDee
Date Posted: 15 Dec 2020 at 5:57pm
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Do you know what BIOS revision is currently installed on your motherboard? Needs to be 3.30 or newer (pretty good chance it's newer, but you never know) Have you tried removing everything from the case and set up on a non-conductive surface with just essential items ..ie PSU, CPU/cooler, GPU, and memory installed in slots A2/B2 or just one stick in A2...? ------------- |Ryzen 5 5900|ASRock X570 Taichi-BIOS 4.60|2x16GB HyperX Predator RGB 3200@3600 1:1 IF|ASRock RX 6700XT|2 x PCIe 4.0 M.2 Drives for OS & Games|850 WTT Seasonic 80+ Titanium PSU|Noctua NH-D15| |
Posted By: ThreeDee
Date Posted: 15 Dec 2020 at 5:58pm
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..of course make sure all your power connectors are securely plugged in .. maybe even try a different PSU if you have one available.. ------------- |Ryzen 5 5900|ASRock X570 Taichi-BIOS 4.60|2x16GB HyperX Predator RGB 3200@3600 1:1 IF|ASRock RX 6700XT|2 x PCIe 4.0 M.2 Drives for OS & Games|850 WTT Seasonic 80+ Titanium PSU|Noctua NH-D15| |
Posted By: DarkAvarian
Date Posted: 15 Dec 2020 at 6:58pm
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Back i am, sorry livin in germany and had to sleep and take a break off that nightmare. Heres a Documentation, hope it works out.  Thanks for your help and advice! |
Posted By: DarkAvarian
Date Posted: 15 Dec 2020 at 7:05pm
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Posted By: Xaltar
Date Posted: 15 Dec 2020 at 7:14pm
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Make sure the clear CMOS jumper isn't bridged, or shorted (under the board). As ThreeDee suggested, try setting up the system outside the case with just the basics, CPU, one RAM module, GPU and PSU. ------------- 
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Posted By: DarkAvarian
Date Posted: 15 Dec 2020 at 7:44pm
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tested with clear CMOS, no jumper is bridge, tried outside, cpu, one ram modul, and PSU, still no result, with GPU, still no result ;( but that boards keeps glowing red, so im quite doubtful that this is the problem. |
Posted By: Xaltar
Date Posted: 16 Dec 2020 at 12:15am
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I know this is probably a silly question but are you sure you are using the correct header for the power switch?  -------------
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Posted By: DarkAvarian
Date Posted: 16 Dec 2020 at 12:30am
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its okay, i have checked that manual tons of times, looking for another spot... but no, im using the corecct spot. first two pins are power led, followed by power switch, next row, hdd led, followed by reset(which is not used there as it is used in ADDR LED) |
Posted By: cx5
Date Posted: 16 Dec 2020 at 11:15am
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Hi @DarkAvarian, very good nice documentation, CPU power plug is definitely in, and various confirmation to questions by others.... I'm out of ideas, last of last, borrow another CPU from a friend? or a shop? to try??? ------------- x370taichi@3.50gen4 AX750 Optane900P SN770 3800x PosdonZro4 BarrowPWM-17w>420x140x28 XFX SWFT319 6900XT MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz |
Posted By: DarkAvarian
Date Posted: 16 Dec 2020 at 3:13pm
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Hey cx5, yeah that was why i started this Post, as i am out of Ideas too ;(. Still thanks for your time! Will try to look where the problem is, when my next order arrives tomorrow and give you guys a short feedback here. That darn thing is still insulting me by glowing red like its in full function, while its complete out of order and doesn't even start ;( |
Posted By: DarkAvarian
Date Posted: 16 Dec 2020 at 8:36pm
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alright now im near insanity... other parts arrived today, build it up, to check which might be the dysfunctional one... but i get the same bloody result in whatever setup i try to get it running! 
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Posted By: DarkAvarian
Date Posted: 16 Dec 2020 at 9:54pm
| okay i have mostly figured out what is wrong, thing is, ALL our PSU got an 24pin for MB, 2x4pin for CPU and multiple 6+2 pins for PCI-E ... our boards need 24pin for MB AND 3 times 4pin CPU, so i, dumb as i am, used that 6+2 pin PCI-E as it FITS perfectly in and used 1 of those 4pin for CPU to get it done... and as far as it is, PCI-E works same with 12v but that cable order is not the same as CPU thats why its not working... at least that is my biggest guess... if someone could definetly agree to that, id be veeery grateful xD |
Posted By: cx5
Date Posted: 17 Dec 2020 at 10:50am
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Hi @DarkAvarian The CPU and GPU power plugs cannot fit each other normally. https://www.google.com/search?q=cpu+power+pin+layout&newwindow=1&sxsrf=ALeKk03bjyX0UC1u3ZrzUBnuIzLXVL5EQA:1608173119645&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjalaLc_9PtAhV7w4sBHQxmB1EQ_AUoAXoECBAQAw&biw=1313&bih=670 But you're right, they cannot be mixed up. The pin layout is different, if force fit I think the CPU and GPU would explode, as the picture shows 12V+ and GND reserved between the two plugs. ------------- x370taichi@3.50gen4 AX750 Optane900P SN770 3800x PosdonZro4 BarrowPWM-17w>420x140x28 XFX SWFT319 6900XT MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz |
Posted By: cx5
Date Posted: 17 Dec 2020 at 11:05am
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OK, I just checked your PSU and has molex sockets too, hence please double check not to mix up CPU and GPU or anything thing. Although they are POKA-YOKE, impossible to plug wrongly. and I want to introduce a different problem, post error code = 33, 7b, 6a, 66 and repeat. clear cmos does not work in my instance, 1) got to remove SSD, GPU, 2) then clear cmos without SSD and GPU 3) install GPU without SSD 4) must boot once and post pass showing no ssd found 5) reinstall SSD then all OK. so may be you can try clear CMOS without anything, no ram, no cpu, no GPU, no SSD, no fans, etc. ------------- x370taichi@3.50gen4 AX750 Optane900P SN770 3800x PosdonZro4 BarrowPWM-17w>420x140x28 XFX SWFT319 6900XT MSI RX560 LP to get Fluid Motion BlueskyFRC 75hz |