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Can mobo power on without CPU

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Bashdar09

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Hello so i have sold my 5 2600 cpu and i don't have cpu for atleast 10 days i rebuild my entire pc and powered ON the PC without the cpu it won't even spin a fan for a second or any lights is it normal?

B450 A ROG STRIX GAMING-F
16GB 3000MHZ LPX RAM
RX580 8GB SAPPHIRE PULSE
550 WATT 80+ GOLD PSU

Does anyone have that motherboard ? can you try to run with out a cpu to see what happen ? I will be in ur debt forever im in a stress that i damaged . something. 5 3600 will be my new cpu though❤
 
Generally, no. Your board doesn't have BIOS flashback. BIOS flashback would allow you to power on the board to update the BIOS just by having the 24-pin and EPS cables connected and a USB stick with the file in the right port, no CPU or RAM needed.

I sure as hell hope you updated your BIOS to ver. 2406 or later before you sold your 2600, or else you will be met with a black screen with your new 3600. If you didn't, you will have to buy an Athlon / request an Athlon kit from AMD / take it to the store to update the BIOS.
 
It's normal.
 
27MaD said:
The real question is why?!

Yes that's pretty much what's gonna happen.
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Thanks, I don't trust myself with rebuilding a pc

tabascosauz said:
Generally, no. Your board doesn't have BIOS flashback. BIOS flashback would allow you to power on the board to update the BIOS just by having the 24-pin and EPS cables connected and a USB stick with the file in the right port, no CPU or RAM needed.

I sure as hell hope you updated your BIOS to ver. 2406 or later before you sold your 2600, or else you will be met with a black screen with your new 3600. If you didn't, you will have to buy an Athlon / request an Athlon kit from AMD / take it to the store to update the BIOS.
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Yes sir its latest ASUS bios installed by an USB stick ver 3103

Frick said:
It's normal.
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Thank you so much that is a relife
 
Bashdar09 said:
Thanks, I don't trust myself with rebuilding a pc
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I still don't get your point, you can't test your new build without a CPU, hope you updated your BIOS before you sold your 2600 like @tabascosauz said.
 
Bashdar09 said:
My point was can i test other parts without a cpu / i updated it to 3103 before selling my 5 2600
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if it worked before and all you did was pull the CPU, assuming you didnt use a chisel or yank it straight out of the socket without unlatching the lever :p then don't worry, pop new CPU in and win :rockout:
 
xman2007 said:
if it worked before and all you did was pull the CPU, assuming you didnt use a chisel or yank it straight out of the socket without unlatching the lever :p then don't worry, pop new CPU in and win :rockout:
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I am way too careful with cpu but not with wires tbh like that hdd led and power sw ..etc drove me crazy
 
Bashdar09 said:
without the cpu it won't even spin a fan for a second or any lights is it normal?
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I have to wonder what did you expect it to do boot up?
 
Me Unhelpful said:
So, if I have everything except the cpu installed, the fans should start, right?
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What are you asking?? If you jump the psu? If you jump the psu it will power on.
 
Me Unhelpful said:
So, if I have everything except the cpu installed, the fans should start, right?
Click to expand...

If you try to start a motherboard without the CPU nothing will happen. If you jump start a PSU the fan in the PSU and the fans connected to the PSU will start.
 
I have the same mobo i have connected everything exept for the cpu coz i dont have as of the moment.. so i tried to fire it up nothings happen. I got worried since i saw this now i can relax just waiting for my 2600 and hopefully evrything will be just fine..
 
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