Having problems with your Gateway 500XL PC Desktop ?

The Computer will not power up. The start light is lit but there is no fan or other power. The power supply tests good. Checked all connections. Can you help?


Answers :

\015\012Disconnect all devices from the power supply EXCEPT the motherboard
Remove any extra cards including video etc.(plug monitor into the onboard)

If you hear any beeps these can indictate where the fault is.
either of these sites below will help you further with that

Beep codes P
In this case, it is possible that SMPS (Switched-mode power supply, is an electronic power supply unit (PSU) that incorporates a switching regulator in order to provide the required dc output voltage) is not working or its out of order i.e., it needs to be changed. SMPS resides in the CPU, which is responsible by fan and all such power in cpu.
\015\012
\015\012So better try changing SMPS.

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