I built a computer in Europe and took in with me on a flight to Canada as a check-in baggage.

I bought new power cables but the computer doesn't seem to turn on at all. Only the monitor works.

Why is my computer not working? My PSU is a THERMALTAKE PSU - Smart RGB - 600W - Certified 80PLUS.

  • 1
    Does your PSU have a voltage switch? – DrZoo Oct 3 '19 at 15:38
  • 1
    I believe they do....or should....if they don't have the manual switch. Are you sure the PSU switch is flipped to the on position, and that the cables on the board and PSU are fully plugged in? ¯_(ツ)_/¯ – DrZoo Oct 3 '19 at 15:41
  • 3
    Note: the specification says INPUT FREQUENCY RANGE 50 Hz - 60 Hz and INPUT VOLTAGE 100Vac - 240Vac. If it's your PSU model then in theory it should work. – Kamil Maciorowski Oct 3 '19 at 15:43
  • 1
    @John careful with the wording there. They need to upsample the power, not downsample. 120V to 240V is what they need. – LPChip Oct 3 '19 at 16:05
  • 1
    certainly not 240 to 120… 120 to 240 might work though ;-) Google "step up transformer 120v 240v" – Tetsujin Oct 3 '19 at 16:05

This PSU should work fine as it can support 100v-240v (auto ranging) according to its specs.

It would seem more likely that something has come loose in transit. Open up the box and try reseating the connectors and memory.

  • Everything looks plugged in, I don't know what could be wrong. Also, the graphics card looks a little bit bent, not sure if it's related but it wasn't like this before. – Trafel Oct 4 '19 at 15:40

Your PSU needs 230V input, Canada is 110V


Before getting a different PSU or converter check the back of the one you have.

According to manufacturers specs it supports 100 - 240Vac (as mentioned by @KamilMaciorowski in comments). I'd trust the manufacturers over the retailers description which says 230V.

The back also shows this same information in the AC INPUT box so should be easy to confirm. Back

  • The specs are the same. How can I know what went wrong with the computer? – Trafel Oct 4 '19 at 15:36
  • I'd follow the advice of @davidgo in their answer. If the power supply is compatible with 110V (which it seems to be) then check cables/connections etc. Something has either been disconnected or has broken. – lx07 Oct 5 '19 at 11:17

You will need to buy a transformer for 110 volts to 220 volts and branch it between the mains and the computer,

You may find one that fits your needs on Amazon.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.