Powering on

[Terry1325red]

I keep trying to turn my computer on it turns on but wont do anything else it flickers 

[itsmyname]

@Terry1325red -- the "usual suspects" are:

1. failure of the external power supply
2. broken connector where the cord from the power supply plugs-in to the computer
3. failing motherboard
4. failing processor
5. RAM not completely inserted into its socket
6. (desktop computer): graphics adapter card not completely inserted into its socket

For #1, can you use a MultiMeter to measure the Voltage & Wattage being produced, or can you try a replacement?

For #2, maybe a bit of "wiggling" the connector might temporarily produce a "solid" connection.

For #3 & #4, these are not components that you can easily tet

For #5, remove the RAM, and reinsert it

For #6, remove the card, and reinsert it.

Did you purchase the computer within the last 12 months? 

If so, contact HP Support to open a claim against the HP Warranty,

to get it fixed at HP's expense.

Otherwise, take it to a professional computer technician, and pay for trouble-shooting.

Good luck!

[SophiaBerger]

need to take to service center its internal issue