Replace HP Z820 GPU.

Introduction

This CPU doesn't have the same graphics card as the disassembly tutorial. In the latter, the graphics card is a reduced format. However, full-size graphics cards are usually accompanied by a guide to prevent physical damage to the card or motherboard port.

This guide, screwed to the graphics card, makes installing or removing a graphics card more delicate. That's why this replacement tutorial will also include steps for reinstalling such a graphics card.

There's also a step-by-step guide to show which graphics cards are compatible with this model in terms of size.

Step 1 Opening the PC case

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First, pull the handle and raise the upper part of the case.
Make sure that you have unlocked the lock that is located close to the handle.
After taking the upper part off, you'll see the covers of the different pieces of the PC.

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Step 2 Opening the GPU compartment

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Raise the cover of the left lower side.

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Step 3 GPU with guide

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This PC has a full-sized GPU with a guide that fits the GPU in the case. That allows you to avoid physicall damages on the GPU.
The GPU has a guide. It's necessary to pay attention and don't forget about it while taking the GPU off.

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Step 4 GPU Removal, Part 1

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Disconnect the power connector from the GPU.
You can clip the connectors in a specifically designed place.
Raise the rod that maintains the PCI GPU in place.

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Step 5 GPU Removal, Part 2

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The first two steps must be performed simultaneously. If you release the tab, it returns to its previous position.
Raise the tab that maintains the GPU in its port.
Raise the GPU slowly from the side of the guide until the GPU partially comes out of its port.
Raise the GPU from its other side.

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Step 6 Installation using the guide

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If your GPU has no guide, you can go to the next step.
Introduce the new GPU at 45º from the motherboard.
Pay attention and avoid damaging the motherboard during the insertion.
Place the guide in front of the appropriate slot and push the graphics card into it, making sure it fits into its PCI slot.
To check that your graphics card is correctly installed, check that the tab is properly locked in place.
Don't forget to connect the power supply cables of the GPU if it's necessary.

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Step 7 Installation without guide

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Insert the graphics card into the PCI bracket until it clicks into place.
Don't forget to connect the power supply connectors to the GPU if it's necessary.

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Step 8 Case's particularity

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The Sapphire RX 5700XT GPU is the largest card that fits in the case without problems.
Maximum GPU height: 11cm.
As it's already explained, the case has special spots for clipping the unused power supply ports.