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Here are instructions for taking apart a Dell Inspiron 1720/1721 or Dell Vostro 1700 laptop.
You can use these guide for removing and replacing:
1. Laptop memory, hard drive, wireless card, modem.
2. CD/DVD optical drive.
3. Laptop keyboard.
4. LCD panel.
5. Heat sink, CPU, motherboard and other internal components.
Are you looking for spare parts for your Dell Inspiron 1720 laptop? Search here.
First of all, turn off the laptop, unplug AC power adapter and remove the battery.
Turn the laptop upside down and remove Wi-Fi, memory and hard drive covers.
Disconnect (unsnap) two antenna cables from the wireless card. Remove the wireless card.
Spread latches on both sides of the memory module and carefully pull the RAM module from the slot.
You can access only one memory slot from the bottom of the laptop. The second memory slot is located under the keyboard.
Remove three screws securing the hard drive. In order to disconnect the hard drive from the motherboard, lift it up by the black tab attached to the hard drive caddy. Remove the hard drive.
As you see, Dell Inspiron 1720 can handle two hard drives. You can increase laptop storage space by installing a second hard drive.
The BIOS (CRT) battery is located right under the memory slot. By the way, disconnecting the battery will not clear the BIOS password, don’t even try.
Now I’m going to remove the CD/DVD optical drive. Remove one screw securing the CD/DVD drive to the laptop base and open the drive with a paper clip.
Carefully pull the CD/DVD drive from the laptop.
Remove all screws from the bottom.
Remove two screws securing display hinges.
In the following four steps I explain how to remove the laptop keyboard. If you are replacing the keyboard, you can skip all previous steps.
Lift up the keyboard bezel with a flathead screwdriver. Remove the bezel.
Remove four screws securing the keyboard.
Slide the keyboard to the direction shown by the red arrow.
Lift up and remove the keyboard. Now you can replace it with a new one if needed.
As you see on the picture below, this keyboard doesn’t have a flat ribbon cable as most laptop keyboards do. The keyboard connector is a part of the keyboard base.
Unplug two LCD cables from the motherboard and remove one screw securing the grounding cable.
Remove the LCD panel.
Remove six screws securing the top cover assembly and unplug one cable pointed with the red arrow.
As I mentioned before, the second RAM slot can be accessed when you remove the keyboard.
The internal Bluetooth module can be mounted in the top right corner. My Inspiron 1720 came without internal Bluetooth module but it had the Bluetooth cable installed.
Lift up and remove the top cover assembly.
The top cover has been removed.
Loosen four screws securing the CPU heat sink.
Remove the heat sink. Do not forget to apply new thermal grease when you install the heat sink back.
Remove four screws securing the cooling fan. Unplug the fan cable from the system board. Remove the fan.
Remove two screws (blue circles) securing the dial up modem. Remove the modem.
Remove six screws (red circles) securing the PCMCIA slot board.
Remove the PCMCIA slot board.
Remove all screws securing the system board. Unplug three cables on the bottom (three red arrows). Unplug and remove the Bluetooth cable (yellow arrow).
Start removing the system board from the left side.
The system board has been removed.
In order to remove the CPU, you’ll have to unlock the CPU socket first. Turn the screw into the “Unlocked” position. Carefully lift up the CPU from the socket.
If you are replacing the system board, you’ll have to transfer the hard drive connector board to the new system board.
November 17th, 2010 at 5:24 am
I have the HP pavillion dv6000 which when you turn it on all leds indicator (all the indicator leads) gets on, and the machine doesn’t work at all. what could be the possible fault?.
November 17th, 2010 at 5:14 am
Hello forum, I have a Dell inspiron 1721 when I turn it on the LCD stays still dark, however if you look careful the LCD is working although there is no light. what can I do to fix the problem?.
November 4th, 2010 at 9:50 pm
Hi
I need the help of all laptop gurus here. My Dell Inspirion 1720 laptop (3 YO) screen goes black after 5 mins of reboot. If i connect to another monitor it works fine but laptops screen remains black. Also if you look closely you still can see faintly files opened in the black dark screen.
I have tried the following:
1- Disabled the screen saver.
2- Turned power saving to high performance.
3- have spent $30 and bought the Regcure licence to fix the registry errors. but it didnot do any good.
Problem is still there.
I am not sure what else to do. Could you please tell m eif you know a fix to this problem.
Thanks in advance for your help.
Cheers
Khan
October 22nd, 2010 at 10:47 am
Lingo_Denmark,
First of all, unplug the AC adapter, remove the battery and wait for a few minutes. Now plug the AC adapter and try turning it on again. This might help.
You said the laptop turns on with a black screen. Is it completely black? Take a closer look at the screen. Can you see any faint image on it?
Also, test your laptop with an external monitor. Can you get any image on the external screen?
October 22nd, 2010 at 5:02 am
Hi.
Thanks for this forum, RESPECT to the people trying to help others, its what make a ” human.” !!!
My doughters dell insp. 1721 has been ( clokket a little ) by her man, because he used it to play.
She told me that when she turned it on, it wrote that it has been overheaded and would shut down.
Since it just shows black screen when being startet… So what is yuor adwise for me, can anybody tell from its behavior and treatment WHAT the problem can be, I was thinking CPU – Intel dual – 2,2 GHZ – i mean, maybe 2,1…. Intel ( Have testet RAM.) geforce Nvida….
Kind Thanks from Lingo. Denmark.
October 5th, 2010 at 10:40 pm
I have a Dell 1720 Pentium Dual Core that I’ve dropped and cracked the casing on.
Will all the parts fit the casing for a 1721 Amd version?
September 23rd, 2010 at 8:00 pm
Thank you so much! Your site enabled me to replace my audio connector board and now my sound is working. The headphone jack on the audio connector board completely broke off and replacing the board fixed the problem. Thank You so much!
September 17th, 2010 at 10:17 pm
Kelly,
This is the audio connector board. This board located in the lower right corner of the laptop base.
I’m not sure if replacing this board will fix your problem but you can find it here.
September 17th, 2010 at 7:08 pm
Also would appreciate a detailed description regarding location and replacement of video cards from one mboard to the new mainboard…and any other transfers that need to be made when replacing mainboards…
September 17th, 2010 at 6:24 pm
I appreciate your answering the first part of my question regarding replacing the motherboard of a Dell 1720…
however, do you have advice on the inherent problem of this motherboard to short out… is it a problem of overheating?
What’s your ‘hands-on’ with this problem?
Is it a particular chip that seems to short… or is it random?