Hp flashing green power light

You unplug your power cord, remove the cover of your computer, use your hairdryer on the power supply unit, and then plug your cord back in; it should start up.

Hello
I also have this problem
what does it mean to clear the computer cache??
and how does the dryer help?
do you know where it comes from?

a little tip for the ignorant too, just plug in the power supply, and disconnect the 20 or 24 pins, depending on the motherboards!!! and reconnect it while keeping the power supply plugged in and it works again! the cost of the capacitor that doesn't work is nonsense! after testing the power supply with a test case, I found that where I should have more than +12V, I have 11.9, result, there is indeed something that is not working in the power supply, but no one will be able to say what! a capacitor! an amateur's response to pretend to be a pro!!! changing the power supply doesn’t cost much!

It happened to me, I completely dismantled my power supply and it was just dust that caused a short circuit!
A little cleaning and it was good to go!

But be careful where you put your fingers!! Don't touch the capacitors!!!

Hello everyone, I had the same problem and I can tell you that using a hairdryer is useless; you need to change the entire power supply unit. This problem is due to a power surge. I hope you haven't damaged anything else because I
changed the power supply, restarted it, and found out that my burner was also dead. A power supply isn't too expensive; it depends on the models.

I hope I helped you.

Hello,

After a move, my PC stayed in an unheated room at about 10° for 5 days and I couldn't restart it. The green light was flashing. So, I followed the advice of using a hairdryer, and for me, it worked.

Thank you! :-)

Patrick

the dryer WORKS!!!!!!!!!!

A BIG THANK YOU because I had the same problem with the power supply flickering and not starting, and a blast of the hairdryer through the power supply fan. After a hesitation of the light, which flickered a bit more, it stayed steadily on. A press of the start button and my PC started up without any issues. A big PHEW because I thought I was in deep trouble!!!!!

Hello,

It worked for me too.

Really impressive!!!!

Thank you for the tip.

Hello, I come to confirm that the hairdryer trick works. Following a power cut, while my PC (Compaq Presario tower, 8 years old) was turned off but plugged in, when the power returned, the green light started flashing rapidly and the one at the back did too. No more way to either turn it on or off. I then used the method described by our friends above, and the green light became steady, and I turned the PC back on like before: great, but why?
Thanks to everyone.

I confirm that this is a solution that works very well for several electronic boards that have failures due to soldering issues that are no longer conductive. Therefore, connections need to be reactivated. This method can be used for graphics cards, motherboards, and all other electronic boards.

The dryer generally heats up the dry solders; in some cases, electric ovens can be used for 4 to 5 minutes at 180°C to heat up all the micro solder points of a motherboard, for example. However, one must be very careful with plastic components. They must be removed beforehand. Do not forget to let the objects cool down naturally. The temperature decrease must be gradual.

Here is my contribution.

So any news since? Did the hairdryer trick work? Because I'm experiencing the same issue, and I would like to know how the hairdryer would help fix the computer? ^^

Personally, I had the same problem and the hair dryer trick worked, because in the end, knowing that power supplies collect dust, you just need to blow some air into it, for example with a hair dryer.

+1 for the dryer (about 5 minutes, not too hot, towards the power supply block fan).

Hello everyone,
Indeed, it works not only on hair. I did it and the outcome is positive; it worked.

Indeed, it works. No need to dismantle.
Dryer 5 minutes in the power supply block, via the fan.

I had the same problem after a storm. The green light at the back is flashing.
I didn't believe a word about the hairdryer... (I have almost 40 years of experience in IT maintenance - on mainframes -)... After looking into it on HP's side, the culprit was the motherboard... Just to be sure, I gave the power supply a blast with the hairdryer... and oh miracle, it started working again without any issues! HP should explain this to us!!

I can't believe it. After 3 months of being broken. I come across this page
after 5 minutes of reading. A blast from a hairdryer and boom, it's working again.
thank you so much.

I’m blown away!!
I had the same problem, my LED was blinking and when I disconnected the plug from the motherboard it didn’t blink.
Not knowing what else to do, I tried the hairdryer trick, 2 minutes against the fan and boom everything works perfectly :D
SO COOL! But yes, HP really needs to explain this to us . . .

Thanks a lot anyway!! :)

Hello everyone,

I had the same issue with my HP computer... two years ago I found the 'hairdryer trick' solution right here on this forum. I admit it worked like a charm and it was really amazing! I've used it several times in case of failure..

But this time, since yesterday, I'm struggling; the hairdryer trick hasn't worked at all... I've tried it at least 7 to 8 times without success. It's an HP, the green light on the tower keeps flashing behind. No matter how many cables I unplug, use the hairdryer, then reconnect the cables, the light remains flashing; I can't get it to stop and thus can't start it.

If you could help me because I urgently need to recover some very important data, I would be incredibly grateful.

In any case, a big thanks to 'Barberousse' and may God bless him for his valuable help, even though for me this time it's a no-go. I hope to find a quick solution;

See you!