TOSHIBA P300 no booting

[panathinaikos]

Hello to all,

I have a TOSHIBA P300 sattelite laptop. When it powers on , comes up with TOSHIBA log and F2 , F12 on the bottom of the monitor and thats it. Blank screen after that. I press F2 , F12 , it says "entering set up please wait" but then blank screen again.No F8 no F9 is working.
I press esc during booting to enter to bios but still nothing.
I removed battery and power cord for 24 hours with no luck. Also I thought it may be RAM or HD failure.I removed them but still I take blank screen after a while and of course I cannot enter to BIOS .


Any idea will be appreciated

Thank you

 

[BadBigBen]

kinda sounds like a mainboard fault...

since I am not well versed as to laptops, all the advice that I am going to give you, in lieu of the age of the above laptop, is to go ahead and bite the bullet and get yourself a newer laptop...

less hassles for you in the long run...


PS: to enter the BIOS setup, on a Toshiba and many other laptops, the F2 is the correct key... on other systems it is the DEL key...

where as ESC/F12 usually is the BOOT MENU... and on the Toshiba it is F12...

F8 is for the troubleshooting Menu under Windows...

and I don't know what F9 would even be... Quicksave in certain games?

Ben
"If it works don't fix it! If it doesn't use a sledgehammer..."
How to ask a question, when posting them to a professional forum.
Only ask questions with yes/no answers if you want "yes" or "no"

 

[DrB0b]

Does it function the same way when you run it off battery only or AC adapter only w/o battery?
You stated you tried to remove RAM and HDD, here is the steps I would have taken to troubleshoot:

Remove battery, all RAM, HDD, optical drive, AC adapter, hold power button down for 30 seconds.
With all above still out, replace only 1 stick of RAM in top slot and plug in AC adapter, try to power on. If does same thing, move stick of RAM to other slot and try again. If it still doesnt work repeat above with the other stick of RAM. If it works with the other or in a different slot, then a bad RAM stick or slot is the culprit. If not, I would disassemble the laptop and look at the motherboard and reseat the processor.

All this could be for naught and the Mobo could be the root of all evil although Ive seen some of these be fixed by complete disassembly and reassembly.

"Silence is golden, duct tape is silver...

 

[FredWagner]

Just in case the problem is in the internal/external monitor selection, connect an external monitor to the unit, then boot up, and when the screen goes black after F2 F12, see if you get something on the external monitor... if it does, you might be able to switch it back to the internal monitor.

Another possibility - I had a brand name factory monitor, and a few months after the warranty expired, the power supply for the backlight in the monitor went bad - it would light for several seconds, long enough to tell that the PC was booting normally, and then it would go black. If you used an external light source on the screen, you could see that the display information was still there, just not backlit. I checked inot repairing/replacing the backlight, decided it was quicker and cheaper to buy a new monitor - a differnt brand this time!

Fred Wagner