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HP Recommended
Microsoft Windows 7 (64-bit)

 I can't powerup My hp compaq pro 6300 , 4 short beep and power button red and not turning on from last few days.

3 REPLIES 3
HP Recommended

hi

 HP Compaq Business PC Maintenance and Service Guide Pro 6300 Series Microtower Pro 6300 Series Smal...

here just

Red Power LED flashes four times, once every second,followed by a two second pause.

Beeps stop after fifth iteration but LEDs continue until problem is solved

Power failure (powersupply is overloaded).
OR
The incorrect external power supply adapter is being used on the USDT.

from this

https://support.hp.com/us-en/product/hp-compaq-pro-6300-microtower-pc/5232874/manuals

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Desktop-Knowledge-Base
Windows 11 22h2 inside , user

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HP Recommended

There are three different models with the HP Compaq Pro 6300

Here is the manual that covers the MicroTower and the Small Form Factor

http://h10032.www1.hp.com/ctg/Manual/c04034127.pdf

On page 192 are the beep codes and LED codes.

The 4 beeps is - Power failure (power supply is overloaded).

To the right column is the recommended solution.

Sorry @Prométhée   took me too long to answer


I'm not an HP employee.
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HP Recommended

hi @TheOldMan 

sometimes two opinions are better than one, no worries.

 

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Desktop-Knowledge-Base
Windows 11 22h2 inside , user

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