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Old 11-27-2019, 01:09 PM
Derberuf Derberuf is offline
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Default Corsair Obsidian 750D Airflow front panel latch/catch broken replacement guide

Recently purchased a used Obsidian 750D Airflow for a build and after a few days one of the front latches stopped working. Viewing the forums the only solution was to replace the entire front panel as the latches are built into the panel.

I've got no grounds for warranty replacement so decided to see if there was a way to repair them.

Luckily managed to find a replacement for the latches on eBay at £5 for two so took a punt.

This is a link for the replacement part on eBay. The retractable grips are formed slightly differently but they still work as intended.
https://www.ebay.co.uk/itm/2x-Compat...72.m2749.l2649

Below is the repair procedure I used to replace the latches.

These are the latches which fail.


Video of the front panel not working
https://streamable.com/pob5b

Remove the detachable front panel and both side panels. Spin the case round so you can see behind the sides of the optical drive caddy.
Push inwards to release the clips for the optical drive caddy shroud. Repeat this on the other side.


Spin the case around to the front and pull the optical drive caddy shroud out and behind you will see 6 screws which have to be removed.


After removing the screws pull the front i/o panel forward. You may have to loosen the cabling for the i/o to allow it to move forwards


Tuck the i/o inside the case.


Depending on what front fans you have installed these will also have to be removed.


Also tuck these inside the case. You may want to secure them in place as the case will be placed on its side soon.


These to latches (in combination with 6 clips) are holding the whole front panel in place.


They can bend forward like this. Be careful not to snap them. They only need to be pulled forward a few mm.


Apply pressure to the top of the front panel and pull each latch forward so the clips behind are no longer engaged. Once there is a gap between the chassis body at the top and the front panel it will slide down and allow you to remove it. (this step might be easier with the case on its back or side)


Remove the front facia panel.


Flip the front facia over and you will see the rear of the broken latches. The arrow points to the clips which will have to be released.


Remove the faulty latches
https://streamable.com/1ti0u

Flip the facia over and replace the front latch
https://streamable.com/jlawl

Test the detachable front panel mechanism before replacing the front facia.
https://streamable.com/yxgqq

Redo the above steps to replace the front facia, fans, optical drive caddy and test the detachable front panel mechanism again.
https://streamable.com/vrzok

Here is the part of the latch mechanism which fails. A small nylon peg sticking out of an actuating arm. This shows the mechanism working correctly.
https://streamable.com/4pmbe

Latch mechanism disassembled.


Sizing. The nylon peg is less than a millimetre in diameter. This shows the peg missing.


This shows the peg rendered in place. My opinion is that the nylon peg in the latch is prone to failure and has a low mtbf. It should have been manufactured from a more resilient longer lasting material or its dimensions increased to improve robustness.


hope this helps someone

Last edited by Derberuf; 11-27-2019 at 01:13 PM.
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