My toshiba p25 s670 laptop is gravely ill. Screen stays black, (or almost black) and disk doesn't do anything on power-on. Disk doesn't spin. No beeps. Power LEDs come on, and disk in in perfect order--I took it out and was able to read it in another computer. Problem does not seem to be memory, as dropping from 2, to 1 board helped any. different power-brick has same results. After removing huge heat-sink on cpu, I see it was very clogged with dust, making me think it just died after too long and too hot. sound right? Any other suggestions? Can I buy a used cpu chip and pray, or another p25 s670, that seems to have working cpu?

SOURCE: Laptop doesnt display anything

It does not anything on the screen not even bios.

SOURCE: my laptop tushiba satellite p25 s670 doesn

you might have bad memory.if you have more than one dimm installed try using one at a time.
Good luck

Michael Thomas

• 3056 Answers
• Posted on Sep 11, 2009

SOURCE: power on but no screen oor hard disk motion

Hello there:
i would suggest using a spare monitor and connect the cord that would normally go into a computer and connect it to the laptop and then plug in the power cord for the monitor and turn on the computer if this works and everything is ok then you know that the laptop screen may be faulty or there may be a loose connection somewhere ok?
best regards michael

SOURCE: My toshiba satellite p25 s670 suddenly stops

boot it to safe mode, then run a system restore a week before the issue occured. if there is any resource in conflict with what was installed, this will be removed and problem resolved.

if that did not help, open the laptop up and remove the memory and hard drive, then re seat them properly.

CIROC TECH SUPPORT

• 524 Answers
• Posted on May 05, 2010

SOURCE: toshiba a135-s2356 laptop no bios screen on power up

Hello,
There are 2 ways you can reset your bios.

1. On the motherboard there is a small watch battery. Remove this battery along with the power cable from the power supply. Hold down the power button to fully discharge the system. Wait 2-3 minutes then reinstall the battery and plug in your system. Your reset is now complete

2. Some motherboards have a 3 pin jumper by the battery. Lets say that the jumper is on pins 2 and 3. Remove the jumper while the machine is OFF and place onto pins 1 and 2. Power on your machine for a minute. (Note: Your system will not POST). Shutdown your machine and put the jumper back to pins 2 and 3. Your reset is now complete


This is a great troubleshooting step for those of you having POST issues or no POSTing at all. Like other troubleshooting steps, this will not always work but usually will depending on the problem.
Please let me know if you have any further questions or concerns.
Thanks.