I wanna replace my toshiba M55 3921 pc where can i

I/O Errors are mainly related to faulty hardware, check the drive status

Pls Kindly replace the fan and check your heat sink..thank you
note: But first replace the fan

the graphics chip on the motherboard is damaged, i suggest you take to the experts to do it for you.

"I need all the BELT diagrams for my 1983 Cadillac fleetwood brougham. There are 4 different belts. And the car has been sitting for 3 years. So I wanna replace the belts." ****** yall must cant read? ****

Without seeing your PC I'll have to give you two options.
1) Assume you are just missing the plastic panel button on/off cover -
Should now be exposed a circuit board with a tiny on/off button. Pressin that will work. But a) Its delicate b) Your goin into exposed circuitry; shocking.
2) You are missing the on-off circuit board also. Will need disassemble and replacing
Both parts are reasonably cheap and are worth replacing. See Ebay

ask toshiba.com if they could provide with downgrade cd/dvd for you, HP did that for people doesnt wanna have Win7 on theres machine.

Do you wanna to means the cooling fan noise sound? if it then you will inform that there are too much dust in your cooling fan as a result it can run frequently.
for this reason you can open your laptop case then wash your dust. if you are professional please don't try. for better give it a professional technician. it becomes ok after doing that. thanks

you may have a cooling system and not just a fan. there are numberous places to buy, but you will have to know how to take apart whole machine.

Replacing your fan will void your warranty.

I would advise talking to toshiba for a replacement.

If still you want to replace ir, you have to disassemble the whole laptop to replace the fan, all you have to do once disassembled is unplug the original one and plug the replacement one, but you have to use only compatible ones, or else you will burn your cpu or the fan wont fit.

For a quick resolution, buy a powerfol laptop cooler.

Cheers

Reset cmos. Remove yje cmos battery from the motherboard for about 5 seconds, replace and reboot. This should reset all passwords. Hope this helps.