In this guide I disassemble a Dell Inspiron 7591 2-in-1 (model P84F) laptop. At the time of writing this guide (December 16, 2019), Dell Inspiron 7591 is one of the latest models in the Inspiron 15 7000 2-in-1 computer line.
This laptop featuring a 10th generation Intel Core processor and supports a PCIe NVMe Gen.3.0 x4 SSD.
Removing base cover and battery
There are nine screws fastening the laptop base cover to the top case assembly.
Loosen two captive screws in the upper left and right corners. Remove seven more regular screws.
Pry up the base cover using a case opening tool. It’s easier to do if you start prying up the cover around the hinge area.
Continue separating the base cover with your hands and remove it completely.
Remove two regular screws (red) and loosen one more captive screw (green) securing the battery. It’s easier to unplug the battery cable if you lift up the battery fist.
Lift up the battery and disconnect the cable. Remove the battery.
Removing hard drive and memory
Dell Inspiron 7591 2in1 laptop has two storage drive interfaces: SATA port for a 2.5″ hard drive and PCIe NVMe M.2 SSD slot. This particular laptop didn’t have a 2.5″ hard drive but all the mounting hardware (mounting caddy and SATA cable) was installed.
Remove three screws securing the caddy.
Remove the hard drive caddy with the SATA cable.
Remove two screws from the M.2 PCIe SSD shield.
Carefully separate one side of the SSD shield and push it to the left. There is a hidden latch securing the shield on the left side. Push the shield to the left and at the same time lift up the left side to disengage it from the hidden latch.
Remove the shield which also works as a heatsink. There are two thermal pads between the shield and the SSD.
Pull the solid state drive out.
In this laptop I had a full size type 2280 M.2 PCIe NVMe SSD installed but some models are configured with a shorter type 2230.
The motherboard has two memory slot. They are located under two black flaps with printed removal instructions.
According to Dell, Inspiron 7591 2in1 can support up to 16GB (2x8GB) DDR4 RAM.
According to Crucial, it will take up to 32GB (2x16GB) DDR4 RAM.
Removing heatsink fan
Remove two screws from the metal bracket mounted above the heatsink fan.
The bracket attached to the fan with adhesive. Carefully peel off the bracket and remove it.
Remove two screws attaching the fan to the case. Disconnect the fan cable from the motherboard.
Lift up and remove the fan (part number 0WVCTX).
Removing display panel
Remove four screws securing the display hinges.
Disconnect the touchscreen board cable (yellow) and the display cable (green).
Here’s how to disconnect the touchscreen board cable.
Lift up the locking tab to unlock the connector (red arrow). Lift up and remove the cable from the connector (yellow arrow).
Here’s how to disconnect the display cable.
There is a black tab on the top of the connector. Pull the connector up by the tab to unplug it from the motherboard.
Lift up the right display hinge.
Lift up the left display hinge.
The DC power jack mounted under this hinge. Remove one screw attaching the DC jack to the case.
Disconnect the DC jack cable from the motherboard and remove the DC jack.
With both hinges lifted up and all cables disconnected, you can start removing the display panel.
Place the laptop on the desk as it shown on the following picture. Lift up the top case assembly and move it from under the hinges.
Separate the display panel from the top case.
Removing motherboard, I/O board and touchpad
I’m not going to remove all remaining components but will show how you can do it.
In order to remove the I/O board it’s necessary to remove one screw and disconnect the following color-coded cables:
– Coin-cell battery cable (orange).
– Fingerprint reader cable (yellow).
– I/O cable (green).
Here’s a closer look at the motherboard.
Remove two screws securing the motherboard. Disconnect the following color-coded cables:
– I/O board cable (orange).
– Wireless card antenna cables (green).
– Speaker cabe (yellow).
– Touchpad cable (light blue).
– Keyboard cable (dark blue).
– Keyboard backlight cable (pink).
After that you can separate the motherboard from the top case and remove it.
The touchpad is secured to the top case with five screws. After removing all screws and disconnecting the one cable from the motherboard, you can remove the touchpad.
The keyboard in Dell Inspiron 7591 2in1 (model P84F) is removable. In order to access and remove the keyboard, it’s necessary to remove the I/O boar and motherboard as explained above.
For more detailed disassembly instructions you can refer to the official Dell Inspiron 7591 2in1 service manual which is available here.