If I powered my motherboard with no cpu but has RAM will it fry the RAM? Or nothing will happen?

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karlopalisoc

May 20, 2018
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I powered up a motherboard with no cpu but I do have the ram and installed it. I powered the motherboard with the 24 pin and 8 pin and the mobo's rgb did work but the rams rgb didnt is this normal?
 
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woahwoahwilly
The fan on the PSU doesn't need to turn on because the system isn't even trying to do anything. The PSU has no need to turn on the fan.

As for the status LED, it probably needs a CPU to be installed and powered to have a status LED show. When my dad and I were building a PC we forgot to plug in the CPU and got no beeping sound or status LED, but after plugging the CPU in the status LED turned on.

The PSU-won't-turn-off-unless-I-unplug-it thing probably has to do with your motherboard not having a way to know if it should be powered off or on (because there is no power button, assuming you are debugging your PC outside of the case), thus meaning it might be on by default. I've never run into this issue.
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DRagor

DRagor

Polypheme
Jan 23, 2017
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There should be no adverse effect to the RAM as long as it was properly installed (and assuming motherboard was not faulty to begin with). The fact that RAM didn't light up is not a proof of anything either at this stage, without all components installed it's hard to predict how motherboard will behave.
 
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paterfly

Reputable
Feb 27, 2015
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Don't worry-nothing will happen to your ram.Your mobo probably beeped or showed some type of error code about CPU missing/failure.It won't even go to bios without CPU,so you are fine.
 
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K

karlopalisoc

May 20, 2018
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0
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Actually, It didnt show any lights on the status LED's. Only the rgb of the mobo and the power LED's work but no status LED's ever lit up. My PSU's fans also didnt spin (doesnt have 0 db tech). And power switch didnt work. As soon as I plug it in the wall its automatically on. Im debugging my Motherboard incase anyones wondering.
 
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woahwoahwilly

woahwoahwilly

Honorable
Jan 18, 2018
301
1
10,815
The fan on the PSU doesn't need to turn on because the system isn't even trying to do anything. The PSU has no need to turn on the fan.

As for the status LED, it probably needs a CPU to be installed and powered to have a status LED show. When my dad and I were building a PC we forgot to plug in the CPU and got no beeping sound or status LED, but after plugging the CPU in the status LED turned on.

The PSU-won't-turn-off-unless-I-unplug-it thing probably has to do with your motherboard not having a way to know if it should be powered off or on (because there is no power button, assuming you are debugging your PC outside of the case), thus meaning it might be on by default. I've never run into this issue.
 
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