okay, here is what is happening there... the power supply in this machine is the Bestec model ATX-250-12z. these power supplies use CapXon brand capacitors which are known for failure. there have been some capacitors that have failed in this machine and blowing the hair dryer into it (temporarily) brings the capacitors close enough to the correct capacitance that it will work. what should be done in this case is the power supply should be unplugged for at minimum 2 days, then open it up and locate the bad capacitors which can be easily identified because the tops of them will be bulged upward as opposed to flat like the other (good) ones. they may also appear rusty on the top or have fluid leaking out of them. they should be de-soldered and replaced with the correct value capacitors, preferably low ESR and of a well known brand.
My HP Pavilion would not power up after a power failure on 2/26/16. Figured it was dead and hoped I could at least salvage the hard drive to possibly retrieve some, if not all, of the files on it. Took cover off and thought first I'd check out possible solutions online: unplugged power cord and held start button down a minute, plugged back in and tried start--no go. Tried other outlets and swapped power cord with another one--didn't work. I figured the power switch might be dead and I'd have to see whether a PC repair service might be able to fix it at a reasonable price (this is a Vista machine and much of the software is not compatible with another, Windows 10 PC I have, so it's worth trying to to resuscitate it.) Then I saw your video and figured--what the heck--let's try the hair dryer tip. Aimed it at the fan for about two minutes and then, while unplugged, held start button down a minute. When I plugged it back in and tried the start button--Voila--it fired up. I don't know why this worked but it did. And it kept me from giving up on the machine and possibly wasting money for an unnecessary repair. Thanks!!!
Unbelievable! I was ready to pull the trigger on buying a replacement PSU and came across this. Grabbed my wife's hair dryer, 60 seconds later my daughter is thrilled to be playing Sims again with the family she has tended since 2007. Thanks so much for the tip.
My HP Pavilion Elite would now power up after a power outage on 11-12-2016. I check out this video and to my surprise my computer started up today, 11-22-2016. It took approximately 60 seconds of hot air flow but it suddenly started booting up! This is a fix that works. I'll see if it is a temporary fix or not, but for now my computer is running. Thanks for a great video! Tom N.
thank you so much,i have tried all the wiring to no avail.Then i tried the hairdryer blowing on the fan and this has worked a treat,so thank you so much.
Found this video and as a last ditch effort figured what the heck. I'll be darn...it worked. At least buys me some time to order a new power supply as I suspect this may only be a temporary fix. Thanks my friend!
Hilarious... I'm still tickled about this. Neighborhood had a power surge lastnight, my HP M9500y wouldn't restart once power was restored. I figured after 6yrs I'm about due for an R&R on the whole pkg, but I wanted to be sure it wasn't something simple sooooo.... I found this nifty vid and told myself, eh wth, couldn't hurt to try it out... Sure enough, after about a 3 minute warm-up with the Mrs. fancy-schmancy hair dryer on the nuclear setting, I'm back up and gaming again... HA! Take that wifey! ;^) Oh and I'm keeping the hair dryer... spoils of war... Thanks much for the VID, nicely done. Learn something new every day...
This worked for me also. But I want to point out that someone told me to view this as a temporary fix. Because the fact that your PC lost the ability to turn on normally indicates that you do have a damaged or some damaged parts inside your computer. So you will still need to get those parts replaced.
That is like magic!! My parents donated an old HP computer to my recording studio and it had a flashing green light. I thought we were all being trolled by this hot air remedy. I waited until no one was around... just in case it was bullshit... I couldn't believe it actually worked!!
Your hair drier trick tells me there are some dry capacitors in your power supply. It sounds about the right age (Vista?!) to be bad caps. You may be able to revive it a few more times; but, for the long term, they will need to be replaced. We use this trick on old switch mode power supplies often replacing the caps gets the beast back up and running.
My Pavilion would not power up and I had a steady green light. I tried the power sourse switch and power on switch with no luck. But I tried the hair dryer on high for a minute. It worked! Thank you very much!
I have an hp pavilion and had to do the hairdryer thing about 2 years ago. It worked but yesterday while I was on the pc......boom!! and computer immediately shut off and smelled a burning smell. I just bought a new power supply and am gonna install today so hopefully my pc will work again!
The boom noise sounded like a 2 by 4 being snapped in half......more like a big cracking sound and the back of the power supply was so hot i couldn't keep my hand on it for more than a second.
+Ants Devon No, I installed new power supply and everything is good. I have had this HP for 10 years now and have replaced 2 power supplies and the ram.
If anyone has a technical reason on why this works, I'd love to hear it. Regardless, after a power outage, my E5200 desktop wouldn't power up. Since I had previously replaced the motherboard, I was hoping it wasn't that again. I went through the HP troubleshooting to no avail, then I tried this as a last ditch effort, and to my pleasant surprise, it worked. Thanks for the video.
Please take out supply unit and check all voltaigist by voltmeter. Open supply unit and check all capscitor. If they have rounded top unit is for replacement for beginners. Ckeck also fan because of malfunction and replace it. Thanks to all Marin.
I have that exact same computer. I tried the hair dryer just tonight, and to my amazement it worked OMG!!! WOW! I know I need a major upgrade, but I am getting all of my use out of this machine..lol Thanks for your trick it worked for me.
@@tanvirkamal replace the capacitors in the power supply, if you cannot solder get a new power supply, if it is the same computer you need the Bestec model ATX-260-12z
Hey Bob, just wondering if you’re still using that pc. If so, did you have that issue anymore? Mine is doing the same and I’ve done that hair dryer technic which actually worked but then I have to do it again whenever I don’t use the pc for a few days.
There's some capacitor's in there that starts up the switch mode supply. They are going bad and probably have little or no capacitance left. Usually dry out because of the heat and stress .First symptom is a no cold-startup problem It'll work as long as it stays plugged in. If you lose power or unplug the computer for more than a few minutes most probably the light will start flashing again and it'll be back to square one. You can fix it by replacing the bad caps, but it makes more sense to just get a new one on ebay for like $30 NOS. Unless you're experienced using a soldering iron and a capacitor checker or a multi-meter ,getting the replacement is the way to go. A few plugs and a screwdriver...problem solved!
@@jwoodward1776 okay, here is what is happening there... the power supply in this machine is the Bestec model ATX-250-12z. these power supplies use CapXon brand capacitors which are known for failure. there have been some capacitors that have failed in this machine and blowing the hair dryer into it (temporarily) brings the capacitors close enough to the correct capacitance that it will work. what should be done in this case is the power supply should be unplugged for at minimum 2 days, then open it up and locate the bad capacitors which can be easily identified because the tops of them will be bulged upward as opposed to flat like the other (good) ones. they may also appear rusty on the top or have fluid leaking out of them. they should be de-soldered and replaced with the correct value capacitors, preferably low ESR and of a well known brand.
i lol :) I guess i had a power surge last night, i heard the thunder. Hp desktop wouldn't power on. Small green light on the back, wasn't flashing but was on. I tried the hair dryer trick, thinking this ain't gonna work. Freak me out it worked. Unreal! Thank You!! :)
I had the same thing happen 2 nights ago, power surge, no power to computer. green light on, not flashing.. Tried the Hairdryer.... I stand AMAZED! It worked... Still working.. Thanks
So to anyone that needs an real explanation: The psu varistor is faulty, by heating up the psu, your allowing that varistor to have more resistance, so the psu starts. On an serious note, this is not recommended. The psu is now starting without ANY PROTECTION, it's an fire hazard Either buy an new PSU, or if your good with soldering,and know what your doing,, buy the varistor ( couple bucks at most) and replace it on the psu.
the power supply in this machine is the Bestec model ATX-250-12z. these power supplies use CapXon brand capacitors which are known for failure. there have been some capacitors that have failed in this machine and blowing the hair dryer into it (temporarily) brings the capacitors close enough to the correct capacitance that it will work. what should be done in this case is the power supply should be unplugged for at minimum 2 days, then open it up and locate the bad capacitors which can be easily identified because the tops of them will be bulged upward as opposed to flat like the other (good) ones. they may also appear rusty on the top or have fluid leaking out of them. they should be de-soldered and replaced with the correct value capacitors, preferably low ESR and of a well known brand. I have worked on many of these HP units that have that exact same issue and the same power supply.
I'm using a pavilion desktop and experiencing almost similar power problem except its not blinking nor any click sound. Help what else must I do? or I just replace with the new power supply?
Same problem like I said but the other advice he had given made it happen. Unplugged for ten seconds held the button. Strange because this happened after my baby wouldn’t leave that area alone where discs and USB are inserted. Then this happened. So I figured it was something with the programming. This is so stupid but there for some reason. Glad he pointed out the other solutions. Life saver! Now my iPhone can be unlocked!
can you help me with something: my computer I mean the case is turning on and then off all by itself. I asked a man about it he said the power supply is wrecked. will it help if i do the same as you did?
Sounds like more capacitor plague, you should have the bad caps replaced or get a new psu. Especially if you have a very old computer with a Bestec model psu that lets the 5v stand-by rail go up to 12v or more if the cap for it goes bad that problem has fried many a motherboard
my computer is almost just like yours but the fans are switched on my computer the one with a bunch of holes is on the top of my computer and the one with a spiderweb patter is on the bottom of my computer on the back which one do I do it to
@Don Dood i got it to start up again but i blew into the back off it and wipe the dust out and gave it a shake and bang lol. I duno if it still works its my old pc i keep around.
Had tried the 115/230 switch and other steps. No joy. Had a solid green light. Tried the hair dryer and bang it powered on. So this means I've got a failing power supply correct? I might be able resurrect with the hair dryer again, but.
Hi. Is there any way to fix the HP power supply from the inside? Is there a fuse in there? The light on the power supply isn't lighting at all. Thank you. God bless, Proverbs 31
okay, here is what is happening there... the power supply in this machine is the Bestec model ATX-250-12z. these power supplies use CapXon brand capacitors which are known for failure. there have been some capacitors that have failed in this machine and blowing the hair dryer into it (temporarily) brings the capacitors close enough to the correct capacitance that it will work. what should be done in this case is the power supply should be unplugged for at minimum 2 days, then open it up and locate the bad capacitors which can be easily identified because the tops of them will be bulged upward as opposed to flat like the other (good) ones. they may also appear rusty on the top or have fluid leaking out of them. they should be de-soldered and replaced with the correct value capacitors, preferably low ESR and of a well known brand.
My hp is turned on but no window logo or booting and a few second the fan spin extremely fast and very loud....it happens before but it working again after that and then today it happen and wont working again....does the psu was faulty or my mobo?
okay, here is what is happening there... the power supply in this machine is the Bestec model ATX-250-12z. these power supplies use CapXon brand capacitors which are known for failure. there have been some capacitors that have failed in this machine and blowing the hair dryer into it (temporarily) brings the capacitors close enough to the correct capacitance that it will work. what should be done in this case is the power supply should be unplugged for at minimum 2 days, then open it up and locate the bad capacitors which can be easily identified because the tops of them will be bulged upward as opposed to flat like the other (good) ones. they may also appear rusty on the top or have fluid leaking out of them. they should be de-soldered and replaced with the correct value capacitors, preferably low ESR and of a well known brand.
Someone please help me ASAP When i press the power button and the thing (green light) only blinks and its not normal cause when i open it it dosent blink (back then)
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okay, here is what is happening there... the power supply in this machine is the Bestec model ATX-250-12z. these power supplies use CapXon brand capacitors which are known for failure. there have been some capacitors that have failed in this machine and blowing the hair dryer into it (temporarily) brings the capacitors close enough to the correct capacitance that it will work. what should be done in this case is the power supply should be unplugged for at minimum 2 days, then open it up and locate the bad capacitors which can be easily identified because the tops of them will be bulged upward as opposed to flat like the other (good) ones. they may also appear rusty on the top or have fluid leaking out of them. they should be de-soldered and replaced with the correct value capacitors, preferably low ESR and of a well known brand.
Did NOT work on my HP Envy desktop which is only 17 months old exhibiting the same problem. HP used to be a great company but they sold off the Crown Jewels (test equipment) and only sell cheap Chinese junk now. Shame on HP.
