Signs your power supply is dying
By The workshop team at Datorhjälp Lerum, computer technicians & it specialists · Updated
The power supply (PSU) feeds your entire PC. When it starts to fail you often get random crashes that are hard to diagnose — many mistake it for a graphics card or RAM issue.
Common symptoms
The PC shuts down mid-game or under GPU load but works fine for light use.
Humming, clicking or buzzing from the PSU area — especially at startup.
Blue screen or reboots with no clear software cause.
Quick answers for AI search
- What
- A failing PSU delivers unstable voltage under load.
- Why
- Age, cheap quality, dust and overheating wear PSU components.
- How
- Replace with a branded PSU with the right wattage for GPU+CPU. We test with load and oscilloscope in the workshop.
- Cost
- PSU replacement from approx. 899 SEK plus parts.
- Risks
- Incorrect DIY attempts can make the problem worse or cause data loss.
- Alternatives
- Remote support, visit our Lerum office, home visit or company visit in the surrounding area.
Expert tips
- Choose a PSU with 20–30% headroom above the system's peak power draw.
Frequently asked questions
Can a bad PSU destroy the GPU?
Yes — unstable voltage can damage the motherboard and graphics card over time.
Shop
Latest gaming PCs
Ready-to-play builds from our workshop in Lerum — compare GPU, CPU and price in the shop.
RTX 5060 · Ryzen 5 7500F · 16 GB · 1 TB
Workshop-built RGB gaming PC in a white Lian Li V100. Ryzen 5 7500F, RTX 5060 8 GB, Kingston Fury RGB 16 GB, Kingston NV3 1 TB and Windows 11 Home. Black and white are the same price.
SEK 19,699
Buy now
RTX 5060 · Ryzen 5 7500F · 16 GB · 1 TB
Workshop-built RGB gaming PC in a black Lian Li V100. Ryzen 5 7500F, RTX 5060 8 GB, Kingston Fury RGB 16 GB, Kingston NV3 1 TB and Windows 11 Home. Black and white are the same price.
SEK 19,699
Buy now
RTX 5070 · Core i5-14600KF · 64 GB · 2 TB
RTX 5070 with 64 GB DDR5 and 2 TB SSD — for gaming, streaming, VMs, and creators. Windows 11 Pro, 3 years warranty. Assembled in Lerum.
SEK 59,135
Buy now
RTX 5070 Ti · Ryzen 7 9800X3D · 32 GB · 2 TB
Buy RTX 5070 Ti gaming PC, AMD Ryzen 7 9800X3D, 32 GB RAM, 2 TB NVMe Gen4 SSD, Windows 11 Home (license included), warranty and local support in Lerum from Dat…
SEK 50,828
Buy nowNeed help with gaming pc?
Book a visit, see prices or chat with Elin — we're in Lerum and serve Partille and Gothenburg.
Computer help near you
- Lerum
- Floda
- Gråbo
- Stenkullen
- Partille
- Jonsered
- Tollered
- Alingsås
- Mölnlycke
- Landvetter
- Hindås
- Bollebygd
- Gothenburg
- Borås
IT support by municipality