I have a brand new Macpro that my teens got for xmas, used it 1 day and the screen stays black, I can hear the fan but the screen shows nothing.

now a lesson in laptop diagnosis if the HP diagnostic will not run.
per hp.com

1. big battery out first. and only use AC power pack to wall. end to end connected not loose./
2. hold power button 10sec, and release (the intel magic reset)
3. just see HP laptops splash screen ;and fans spin too,.
4. hear POST beep codes now wright them down
5. text POST error write them down;.
6. new HP , caps lock key , LED may shows blink POST codes
7. ESC key is next, and is bios main hot key this year.
8. F10 is bios page 1.
9. if you get this far we go deeper but here is the list. to do first.
10. last is windows as it does not run on bad hardware.(majors)

POST means power on self test this is bios job1 and runs fans too.
and produces POST errors if are present.

take it back to the shop as a faulty unit.

when the laptop is off hold the power button until 1) the screen goes on or 2) it turns on. if 2 then try connecting a monitor to the laptop and reboot.

what OS? XP or VISTA?
2006 introduction date (year PC) its so old it PS2 jacks.
how about a posting a photo of the bad screens.?
why hot try the system plugged in to another monitor to see
if its the monitor or it cable bad.?
any PC this old, with XP needs to get a factory free reload of
unstated OS. I've never seen and XP system not infected. bad.


so the system works perfectly, ? only this PC flag, is problem?
or works ok then goes dead, you never said it went dead.
just black + PC.
what external screen is it?
when it goes dead if it does, does the OSD menu button on the display work? correctly?
when you boot can you always get BIOS. ? screens,?

are the drivers in Device manager all look ok
is the system free of Virus? if XP , it wont be.

Old systems.
1: do all fans run in the Case like when new?
PSU fan
CPU fan
or all packed in dust bunnies. as all do. never serviced.

#2 "safe mode with networking" will only work if you were attached to a local network and configured to boot from it. This is not the normal configuration for most users. The network they are referring to is NOT the internet.

You should try #1 and after it is booted try a restart [Start], [Shut down], then use the pull-down to select Restart. If once it

Seems a problem with motherboard, Get it repaired by a expert or buy a new one.
this will work.

MOST likely the monitor is bad if you don't hear any beeps when booting up.

If you unplug the monitor the screen should say NO SIGNAL

call sony if it is brand new from the shops or go to the shop you got it from

Three immediate possibilities in order of expense:
1) Make sure the brightness is on. Press the F2 key.
2) Screen backlight could be blown out, especially if you can hear the disk seeking, fans, etc. even though the screen is black. Connect your Mac to an external display or TV using the appropriate adapters. If you get an image, you need a new backlight or LCD panel.
3) Entire machine is plotz, especially if you hear absolutely no chimes, disk movement, optical reset, fans, etc. This may indicate a power board or logic board issue.

hello..this is the 1st you need to try..if you have a CRT monitor or LCD Screen try to put the signal Video on the Laptop located at the Back of unit then try to boot your unit...Thanks...