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- HP Community
- Desktops
- Desktop Hardware and Upgrade Questions
- Power supply upgrade?

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04-13-2024 12:43 PM - edited 04-13-2024 12:43 PM
Welcome to our HP community forum!
Here are the specs for your HP Omen GT21-1324: Datasheet (bbystatic.com), as fitted with an SSID: 8A98 motherboard -please verify.
According to these specs, you got a 600-watt ATX power supply. Meaning, you could upgrade this to a higher-wattage ATX power supply, such as an 850-watt PSU. Just watch the dimensions (LxWxH) for fit inside your desktop.
With your stock 600-watt power supply, you can power a card like an RTX 4070, such as this User did: HP OMEN by HP 40L Gaming Desktop GT21-1xxx Performance Results - UserBenchmark, but also an RTX 4070 Super -plenty of graphics horsepower, I would say.
Whatever you do, also carefully check the GPUs dimensions for fit inside your case.
Hope this was helpful.
Kind Regards,
NonSequitur777