The bayyery light is on, all of the fans on both

Overheating When the CPU overheats then it will shut down (i.e. thermal overload) and won't boot up again until it has cooled down. If this is the problem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are clogged with dust.
Check the CPU fan to see if it spins freely, if not replace the fan.
If the fan and heat sink is clogged with dust the remove the dust and make sure the vents are clear and dust free. Use a small brush and can of compressed air to do this.

OverheatingWhen the CPU overheats then it will shut down (i.e. thermaloverload) and won't boot up again until it has cooled down. If this is theproblem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are cloggedwith dust.
Check the CPU fan to see if it spins freely, if not replace the fan.
If the fan and heat sink is clogged with dust the remove the dust and make surethe vents are clear and dust free. Use a small brush and can of compressed airto do this.

When the CPU overheats then it will shut down (i.e. thermaloverload) and won't boot up again until it has cooled down. If this is theproblem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are cloggedwith dust.
Check the CPU fan to see if it spins freely, if not replace the fan.
If the fan and heat sink is clogged with dust the remove the dust and make surethe vents are clear and dust free. Use a small brush and can of compressed airto do this.

Check the ram memory and se if they are plugged well and working ..leave it work with one at the time if you have more than one module of ram ..and see if this is the issue ..
from what you say it is doing ..sounds to me like a cpu fault .and more likely a fan failure...cause it wants to start but it shuts down as a protection in the moment it detects the fan not working ..So open it up and check the fan ..or replace it ...If this will not solve ..replace the cpu

hello

if its the CPU fan is making loud screech noises, its time to replace it

if the power supply fan is making the noise, its time to replace power supply , 5188-2859 is HP part number $25-$40

CPU fan = 5188-3722 HP part number , costs about $40-50

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You can try doing these:

Clearing the CMOS, i.e. Unplug power cord and take out battery, then put them back in.

Cross check the components such as heatsink/fan, video card, and processor. It is never good to have a heatsink with the fan not spinning.

Check to see if the heatsink is cold, warm or hot. It shouldn't be cold OR hot.

It seems to be that CPU is overheating. I request you to check CPU fan speed. If needed replace the CPU FAN. it will fix the problem.

clean the cpu cooler slots and replace the thermal compound on the cpu ....make sure you clean off the old thermal compound .....only a thin layer of new thermal C will do all most see through ... hope this helps my friend

My recommendations would be to remove all connections to the board.
Remove the CMOS battery.
Remove the CPU fan and CPU.
Look at the top of the CPU, if you have a crust over the top of the CPU, you will need to remove it to a clean surface.
Next, your CPU fan should be a 3 wire connection on the motherboard, within two inchs of the CPU holder.
After cleaning the CPU, re-inseart and apply a heat sink lub for good heat transfer.
Re-install CPU fan and plug in to board connection.
Re-install your CMOS battery and power up unit.

With the CMOS battery removed, the time and date will need to be reset.
Also, in the BIOS for that board, you should be able to see temps. and rpm readings. ??
Hope the CPU has not taken a dump on you.!
Before you plug in the drives and other devices, check temps. rpm and voltages.
Have fun, hope this has helped you.

This sounds like either a fan or CPU/motherboard problem. Either one is going to be expensive to fix, the fan less so than the CPU ($15-20 vs $100-$400).

However, before we assume that the laptop is dead, remove the battery and attempt to boot up just using AC power only. If the problem persists, put the battery back and remove the AC power, and try booting up just on battery. If the problem happens either way, it's the fan or the CPU/motherboard/.

I know this isn't what you wanted to hear, but that's what's happening. A decent local repair technician (not a big mass-repair place like Geek Squad) should be able to replace the fan with labor around $50 or so. The CPU/motherboard replacement will run at least $100-$150 in labor, plus cost of parts.

Obviously, try the fan first. You can pick them up on eBay and that way you won't be charged "extra" for the technician "finding" the fan for you. You should only have to pay them labor costs.

Obviously, if the fan doesn't fix the problem, it's the CPU/motherboard. At that point, I'd cut my losses with the fan (maybe even relist it for sale on eBay) and go buy another laptop. You'll pay $300-$500 just to fix it, or you can buy a new one for not much more, with warranty.

Hope this helps you out - I'm here to answer any additional questions you might have :)