This page sets out the repairs, upgrades and data recovery we carry out on the HP Pavilion Gaming Desktop 790, with notes on what tends to go wrong and what can and cannot be upgraded. It is a gaming desktop from 2018. Parts are matched to the exact chassis, so the model number matters when we quote.
- Model number
- 790
- Released
- 2018
- Type
- Gaming desktop
- Storage
- SATA bays and M.2, by configuration
- Memory
- DIMM slots
HP Pavilion Gaming Desktop 790 repairs and upgrades
Power supply repair
We test and replace failed power supplies. Many branded desktops use a manufacturer-specific unit, which we match to the exact chassis.
Memory upgrade
The HP Pavilion Gaming Desktop 790 uses standard desktop memory. We check the board’s limits and fit matched modules.
Overheating and fan repair
Overheating and noise are usually dust or a failing fan. We clean the system, replace what has failed and check temperatures under load.
Windows repair and reinstall
The HP Pavilion Gaming Desktop 790 meets Microsoft’s Windows 11 requirements in most configurations. We upgrade from Windows 10, which reached end of support in October 2025, or reinstall Windows 11 cleanly with your files kept.
Graphics repair
We diagnose and replace failed graphics cards, and check that the power supply and case can take the card you want before an upgrade.
SSD and storage upgrade
The HP Pavilion Gaming Desktop 790 has room for SATA drives and, on most boards, an M.2 SSD. The usual upgrade is an SSD for Windows and programs with the old drive kept for storage.
Price confirmed before work starts
We also carry out motherboard repair, virus removal on the HP Pavilion Gaming Desktop 790, along with no-picture and no-boot diagnosis, port repair, Wi-Fi and Bluetooth card replacement and data transfer to a new PC.
Notes from the workshop
- Liquid cooler pumps and dust build-up are the common causes of overheating.
- Omen and Pavilion Gaming towers take standard graphics cards, though some generations use an HP-specific motherboard and power supply.
Data recovery from the HP Pavilion Gaming Desktop 790
Desktop drives are removed and imaged on our own equipment. If the HP Pavilion Gaming Desktop 790 has more than one drive, or a RAID array, bring the whole machine so we can see how it was set up.
Estimate the cost with our data recovery calculator, or read about recovering files after a ransomware attack.
Where the HP Pavilion Gaming Desktop 790 sits in the range
Its nearest relatives in the HP Pavilion, Envy and Omen desktop range are the older HP Omen 880 (2017) and the newer HP Omen 30L GT13 (2020).
Questions
Can the SSD or memory in the HP Pavilion Gaming Desktop 790 be upgraded?
Drives can be added or replaced. Memory uses standard slots and can be increased.
My HP Pavilion Gaming Desktop 790 will not turn on. Is my data lost?
Usually not. The drive is separate from the fault in most cases, and we can remove it and copy your files even if the machine itself is not worth repairing.
Is a 2018 HP Pavilion Gaming Desktop 790 still worth repairing?
It depends on the fault. A battery, SSD or charging socket is usually worth doing. A major board repair on an older machine may cost more than the machine is worth, and if that is the case we will say so.
Where do I find the model number on my gaming desktop?
The model is on a label on the back, side or underside of the machine. For this model, look for 790.