Similar to the following models:
- Satellite C840 / C850 / C855 / C855D
- Satellite C870 / C870D / L870 / L870D / L875 / L875D
- Satellite PRO L840 / L850 / L850D / L855 / L855
How to disassemble / take apart the laptop. This video will help you if you want to change not working keyboard / KB, upgrade or replace the hard disk drive (HDD) and RAM memory modules, WiFi mini PCI card, clean the fan / head-sink system and change the thermal compound / paste to the main CPU.
0:09 - Battery
0:16 - Keyboard removal
0:53 - HDD, RAM Memory cover
1:02 - RAM Memory / DDR3
1:13 - SATA HDD (hard disk drive)
1:24 - DVD optical drive
1:34 - Bottom case removal
2:23 - WiFi, Bluetooth mini PCI card
2:29 - Cooling / Fan / Head-sink system
2:58 - Fan
3:48 - Thermal Compose / Paste / Grease for the main CPU
4:03 - Assembling
hey man..great video ! one problem though..once i removed the cooling fan and removed the black tape like thing, it doesnt stick back to the cooling fan as the sticky glue has been worn off. any suggestions ?
KB problem, only replacing can help you. The KB is encapsulated and can't be fixed.
Of course you can try to remove the keyboard and reconnect the flex cable, but 99% your laptop need KB replacement.
Hi ive just purchased a Toshiba Satellite C850-1KN from a carboot.it had no memory in the back just a battery and power pack and hard drive. the cmos battery was missing also.The harddrive light comes on when you plug power in but nothing boots up? it makes a whiring noise in bottom left of laptop?I have removed battery and keyboard and still does not power up? what do you think it is?
hey i really liked your video and i have some questions...i have the same laptop which you opened in this video and i was wondering to upgrade mi cooling fan to a better power rating...it has MF60090v1-c450-g99 (DC5volts-2watts)...
1)can i use other cooling fan?
2)how can i check what power rating speakers are connected to it because i want to change speakers because the one used in it are not so good quality...any comment on it?
+Atif Junaid Khan
The laptop cooling systems do not follow standard like the desktop PCs.
The cooling systems are specific by producer and by models. You have not choice.
About the loudspeaker - you can find it by your model.
OK, I do not recommend you but if it's important for you to use the laptop , you can do this:
If the thermal compound isn't dried, use it again to close the laptop. Download app for CPU temperature monitoring. Intel processors have protection from overheating but if your laptop overheats and shuts down alone, don't use it.
At the same time, buy a thermo grease and when your received it, change it immediately
Hi i have the same device in the vedio
and the fan some time work at maximum speed and stop suddenly and the cpu get over heating and after time when i move the device it start to work then shot down
can i do some thing to fix it .
_- Hey man i enjoyed your video so much and was wondering if i could change the CPU to a better version. currently have Celeron B830 1.80 GHz. i have the C850 19z and was wondering if i could upgrade to at least core i3._
- This board has CPU socket FCPGA988 and intel HM76 chipset. Both of them are ready for i3 processors. CPU compatibility depends also from BIOS and the main board producer but you can't find information for this. The only sure way is to try it.
P.S. You have to select a CPU with same or lower TDP (Thermal Design Power)
+ZFix Thanks for the reply. Am gonna go a head and try like you say it the only way to really know. still, thanks a a lot for the info really helps a lot :)
P.S If it blows on my face you dont have to worry i wont hold it against ya :D
+ZFix I have a little question, the laptop you use is Satellite Pro, mine is Satellite C850-190 that doesn't make difference for RAM replacement and CPU upgrade, it uses FCPGA988 like you mentioned above or it's different?
Your laptop has Intel celeron B815. It's at FCPGA988 socket. This is the table from Intel site for compatible processor for this socket:
Your processors is with TDP - 35W.
The CPU type also depends from the design of the motherboard (chipset) and BIOS-a. I think you can upgrade it to i3 but this is not 100%.
Hey man i enjoyed your video so much and was wondering if i could change the CPU to a better version. currently have Celeron B830 1.80 GHz. i have the C850 19z and was wondering if i could upgrade to at least core i3.
I can't find the spec for this model (maybe it's for a small local market).
This is spec for C850-13c with the same processor:
You can upgrade it to 8GB DDR3.
When the laptop start overheating.
When the cooling system is full with dust or the thermal compound is outdated, the fan begins to operate continuously at maximum speed.
If your laptop doesn't overheat, do not have to do it.
I also own this model C850, and now after watching this useful video I am tempted to clean the dust & change paste myself. For this operation do I need to disassemble the screws under the keyboard too ?
The fan does not work permanently.
Download Core Temp - free app that gives you information about the current CPU temperature and the maximum temperature for your processor model.
During the installation, read the instructions, otherwise it will install additional applications that you do not need.
The fan can go a little after switching on the laptop.
Check first, is the the fan cable is connected well to the main board.
It is possible that the fin fan is pressed and it cannot be rotated.
This video is very much helpful. But i need some clarifications,
01. What chemical can we use to remove old thermoc compound?
[Is iso prophil alcohol(surgical sprit) suitable?]
02. After applying thermoc compound should we keep the CPU surface free for some time before assembling?
01. I use lint-free cloth and isopropyl alcohol. If the old thermal compound is solidified, I use a flat edge of any plastic tool to scrape it off
02. Yes, 5-10 seconds is sufficient to evaporate.
Yes, that could be the reason.
Find and download "Core Temp" - free app to monitor processor temperature.
Read everything when you install it, because it will offer you to install other unnecessary programs.
Tell me the full model of your laptop.
This Processor is on socket FCPGA988
This is the list of processors, filtered by sockets:
But, supported Processor depends on the model of the motherboard too.
+Az Rek You can found on eBay or other online shops. You can search for it in local shops too. Look for thermal compound, grease, paste. Good brand is Arctic Cooling (MX-2, MX-4), Arctic Silver, Cooling Master iceFusion, Phobya Hegrease etc.
Download the appropriate system image for your device below, then unzip it to a safe directory.
Connect your device to your computer over USB.
Start the device in fastboot mode with one of the following methods:
Using the adb tool: With the device powered on, execute:
Using a key combo: Turn the device off, then turn it on and immediately hold down the relevant key combination for your device.
If necessary, unlock the devices bootloader using one of the following methods:
If you are updating a Nexus or Pixel device that is manufactured in 2015 or later (for example, a Nexus 5X, Nexus 6P, Pixel, Pixel XL, Pixel 2 or Pixel 2 XL device), run this command:
For Pixel 2: To flash the bootloader, Pixel 2s boot loader must be updated to at least Oreo MR1s version first. This may be done by applying an over-the-air (OTA) update, or sideloading a full OTA with the instructions on that page.
For Pixel 2 XL only with loader version prior to TMZ20a: the critical partitions may also need to be unlocked before flashing. The unlock can be performed with this command, and should NOT be done on other devices:
If you are updating an older device, run this command:
The target device will show you a confirmation screen. (This erases all data on the target device.)
See Unlocking the bootloader for more detailed instructions.
Open a terminal and navigate to the unzipped system image directory.