No Fan Spin, No Boot, No Nothing. Please Help!

[TundraFox275]

I'm currently working on a PC project. I got the processor and RAM into the motherboard no problem, but then when I pugged in the power supply in a test bench setup and turn the computer on, nothing happens. I was able to confirm that the power supply works, but when it is connected to the motherboard... nothing. I've built a few PCs before, and have never experienced this problem. Does anyone know what could be wrong?

 

Here are the parts I'm using:

 

8GB DDR4 RAM

Intel i3 9100f 9th generation processor

ASUS Prime H310I-Plus R2.0 motherboard

Rosewill HIVE 550S Power Supply

 

Just to reiterate, I'm by no means an expert, but I have had some experience building computers. So I'm not a total noob. Any help or advice is welcome, thanks!

[NickPickerWI]

Two things.

 

A 9100f doesn't have integrated graphics. If you haven't installed a graphics card to your bench, it may be stuck at that part of the POST cycle.

 

Check the manual, you might be missing a power connector on the motherboard somewhere. You also might have the RAM in the wrong slot for where that motherboard wants a single stick.

[GhostRoadieBL]

https://www.asus.com/Motherboards/PRIME-H310I-PLUS-R2-0/HelpDesk_CPU/

 

you may need to flash the bios to allow 9th gen CPUs, might be able to go to a shop and "borrow" an 8th gen just to get to the bios to update to the linked bios. 

[GhostRoadieBL]

2 minutes ago, NickPickerWI said:

Two things.

 

A 9100f doesn't have integrated graphics. If you haven't installed a graphics card to your bench, it may be stuck at that part of the POST cycle.

 

Check the manual, you might be missing a power connector on the motherboard somewhere. You also might have the RAM in the wrong slot for where that motherboard wants a single stick.

if it was stuck in post cycle it would still spin the fans for a second as it charges the caps and starts the post sequence. RAM does the same thing, small blip of power and you'll hear things try to start before failing.

[NickPickerWI]

4 minutes ago, GhostRoadieBL said:

if it was stuck in post cycle it would still spin the fans for a second as it charges the caps and starts the post sequence. RAM does the same thing, small blip of power and you'll hear things try to start before failing.

You're probably right about flashing the BIOS. I didn't see the model of motherboard OP had.

Edited September 9, 2020 by NickPickerWI
missed a few words