will a computer TURN ON without a cpu

[jdaprile18]

i just finished a new build, and like an idiot, i put the 180 dollar cpu in wrong and bended the pins, i snapped one off unbending it, what im wondering is, will a pc start without the cpu. i dont know if not having a cpu is hte only problem, i noo it wont run, but will it start?

[The Sloth]

no, CPU is one of the most important parts of a PC. 

[Mira Yurizaki]

Does a person live without a brain? :3

[jdaprile18]

ok i just wanted to know if the cpu was the only problem with my build.

when i plugged it in while it was missing a pin the computer wouldnt even start, which confused me cause i figured that at least the fans would go

[RadiatingLight]

1 minute ago, jdaprile18 said:

when i plugged it in while it was missing a pin the computer wouldnt even start, which confused me cause i figured that at least the fans would go

the fans should turn on actually... strange that they didn't.

 

but no, the computer won't POST or do anything more than power the fans.

[jdaprile18]

thats wierd, im certain the motherboard and psu works.

[RadiatingLight]

1 minute ago, jdaprile18 said:

thats wierd, im certain the motherboard and psu works.

Quote the person you're responding to next time. it helps me see replies.

 

A common mistake is not hooking up the power button.

is it hooked up, and have you tried turning on the PC simply by shorting the PWR+ and PWR- pins on the board?

 

[jdaprile18]

yeah, maybe its busted, its new tho

 

[ProjectBox153]

It may possibly turn on, but give an error code. You can't do anything, even get into the BIOS. 

[PianoPlayer88Key]

3 hours ago, RadiatingLight said:

the fans should turn on actually... strange that they didn't.

 

but no, the computer won't POST or do anything more than power the fans.

 

2 hours ago, Jamiec1130 said:

It may possibly turn on, but give an error code. You can't do anything, even get into the BIOS. 

 

Then how do boards supporting BIOS flashback work?  I'm thinking of boards (like some from ASUS and other brands I don't recall) that you can plug in a USB flash drive and update the BIOS (like on a Z170 board) before you've installed your Kaby Lake CPU.

 

Also would it spin up the platters on HDDs, as well as the fans, with no CPU installed, and/or flash any indicator lights? Or not even that?

[RadiatingLight]

5 minutes ago, PianoPlayer88Key said:

 

 

Then how do boards supporting BIOS flashback work?  I'm thinking of boards (like some from ASUS and other brands I don't recall) that you can plug in a USB flash drive and update the BIOS (like on a Z170 board) before you've installed your Kaby Lake CPU.

 

Also would it spin up the platters on HDDs, as well as the fans, with no CPU installed, and/or flash any indicator lights? Or not even that?

Boards with special BIOS flashback contain a mini-CPU which is enough for BIOS updates, but nothing else.

Fans should spin up, but the HDDs won't

[typographie]

4 hours ago, jdaprile18 said:

i dont know if not having a cpu is hte only problem, i noo it wont run, but will it start?

It might "start" in the sense that power runs through the motherboard and the fans begin spinning, but it'll probably just beep an error code at you and shut down. Your CPU basically is the computer.

[Simon771]

Not sure how it is with new motherboard etc. but at work we had some PC without CPU.

Pressing power button did nothing. Fans wouldn't spin or anything, just after few sec it would start beeping like crazy.

 

On newer motherboard, fans should start spinning and LEDs should turn on. But without CPU, nothing else should work.

[jdaprile18]

it wont even beep, im gonna try the power sw bypass

[jdaprile18]

nothing will turn on, with or without the cpu in there, however, the cpu is missing pins so that might be it

[jdaprile18]

it just confuses me how nothing will turn on, do those mb diagonostic tools require power from the motherboard to work?

[The-]

Has anybody solved this problem, I have the same issue fans aren’t responding I have an asrock x99 extreme, I am waiting on the cpu. 

I tried jumping the power connectors for the power button.

i jumped the 24pin green and black and the fans started spinning. What does that mean? 

 

Otherwise the mobo is lifeless