Screen blank means no data or video signal. there fore pls remove the ram and install. also pls check with another laptop.
SOURCE: fan Problem - Toshiba Satellite M35X-S349
Your fan is running to keep your system (mainly your processor) from overheating. Heat is the biggest enemy of laptops, and most aren't designed to put on your lap (as air intake ports are usually on the bottom and blocking them with your pants, comforter, blanket, etc... will not allow air to circulate causing heat sensing hardware/software to kick the fan into high speed) as that name would suggest. I believe that Notebook computer is the more proper term for most of them, though some are designed with no air intakes on the bottom side, unfortunately yours does. When you opened it up and "cleaned it" did you clean the heat sync and the other components or just the fan? If your PC is in a smoking environment it will have tar build up holding the dust and need a more thorough cleaning than just blowing it out with canned air from the outside (you may want to disassemble it and clean it with a non residual, non petroleum based contact cleaner. Otherwise there are plenty of temperature monitoring softwares out that will tell you what the processor and harddrive temperature are and most have free trials that you may want to try to see if heat is your problem. There is also software available to monitor and even increase/decrease your fan speed.
Good Luck.
SOURCE: completely black screen
Hi,
I had the same problem before. I think Toshiba had a problem, because when I removed the battery and switched it on again it was working.
After that you can put the battery again.
Try that.
SOURCE: Toshiba Laptop black screen
chek in bios setup your hard disk is detect or not.
when u power up the laptop press F2 or DEL or F5 or F12 then u see bios menu.then if your hard disk not detect disable sata.if u detect your hard disk set harddisk as first boot device then save settings.
but if u see first windows then blank scrrreen u need to do nothing.just do following.
when u power up the laptop press F8 key then u get safe mode and etc menu.
go to enable vga mode thwen u enter in windows xp set your display resolution to 800*600 or 1024*768
thats all.
SOURCE: Toshiba Satellite A215-S7437 will not boot up...
Take out the hard drive completely and then see if you hear the clicking noise, if you do then that means the hard drive is bad. Also if it goes right to another message and you don't see the blinking cursor then that also verifies that the hard drive was bad and causing the system to hang.
SOURCE: power comes on, fan runs for a few seconds,,,,fan
Sounds like your power supply has gone bad
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c
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