Question PC won’t post after installing new motherboard and 12th gen CPU

RZB0809

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Nov 15, 2015
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Gigabyte B660 Aorus Master DDR4 just installed with i7-12700K. Just installed a water cooler with it as well and it is compatible with the LGA 1700 CPUS. When I turn on the IO switch, the PC doesn’t post. The motherboard instead does short beeps consistently nonstop. I counted up to more than 30 times so clearly something may be wrong here. I have found no beep codes to help diagnose what may be the issue. Should I just take it to a Geek Squad? I literally have no idea what the beep codes could mean since it’s non stop/ forever.
Thank you all.
 

Darkbreeze

Retired Mod
Should I just take it to a Geek Squad?
No, what you SHOULD do is go through this list, several times, to be absolutely sure it isn't something on the list because almost every case like yours tends to be due to one of the mentioned problems there:


AND if nothing is resolved after you do that, and DO DO that, because even experienced builders like many of us are occasionally make one of these mistakes despite doing it forever, then do this.

 

RZB0809

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Nov 15, 2015
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RAM:
G.SKILL Ripjaws V Series 32GB (4 x 8GB) 288-Pin
DDR4 SDRAM DDR4 3600 (PC4 28800) Desktop
Memory Model F4-3600C18Q-32GVK

CPU:
Intel Core i7-12700K - Core i7 12th Gen Alder Lake
12-Core (8P+4E) 3.6 GHz LGA 1700 125W Intel UHD
Graphics 770 Desktop Processor - BX8071512700K

MOBO:
GIGABYTE B660 AORUS MASTER DDR4 B660 Intel
LGA 1700 ATX Motherboard with DDR4, Triple M.2,
PCle 4.0, USB 3.2 Gen2 Type-C, WIFI 6 802.11ax,
Intel 2.5GbE LAN

GPU:
Express 4.0 Video Card RTX 3070 VENTUS 2X OC

CPU FAN WATER COOLER:
ASUS TUF Gaming LC 120 ARGB all-in-one liquid
CPU cooler (Aura Sync, TUF 120mm ARGB radiator
fan with fan blade groove design)

SSD:
SAMSUNG 970 EVO 500GB
 

RZB0809

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Nov 15, 2015
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Memory is compatible so that's not the issue.

I recommend you follow my guide to bench test the unit and read it carefully.
yeah, I heard if the cpu cooler isn’t connected properly, it will not boot since the motherboard is trying to prevent the cpu from heating up. Other than that, I’ve tried almost all of the steps. I’m starting to assume I may have a DOA motherboard or cpu.
 

RZB0809

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Nov 15, 2015
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Is the cooler not connected properly?
With the amount of unnecessary RGB cables the cooler provides, it’s honestly hard to tell. I’m also not sure if I need to connect the cpu fan connector into the CPU_FAN or CPU_OPT. The three holed connector that comes out of the CPU itself is connected to the fan hub on the other side.

here’s the manual:


Also, my cooler only has only one fan. The manual shows that I have two.
 

RZB0809

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Nov 15, 2015
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Oh and I just realized, the motherboard isn’t what is beeping. The CPU cooler is what’s actually beeping, and it lights up after every beep.
 

Darkbreeze

Retired Mod
WHICH connector are you connecting to the CPU FAN header? The fan connector or the pump connector? There are three connectors on your cooler. The ARGB connector, the fan connector that should be connected to the fan on the radiator and the pump connector which should be connected to the CPU FAN header. If all that is correct and according to the manual then I'd say maybe you have a bad cooler. Do you have a 4 pin PWM fan you can connect to the CPU FAN header temporarily just to see if it will POST that way?
 

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