Having problems with your Dell Dimension 2400 PC Desktop ?

I finished building a new computer,only to find that it would not come alive. It refuses to go into Post. If i hold down the reset button while i applied power it runs but still refuses to go into bios. Then i discovered that if i disconnect the power (4 pin plug near the back plate, which i think is 12v power rail) it runs , but it still won't go into post-- nothing on the Monitor. Please HELP !!!


Answers :

Check your ram/cmos battery/HDD/cddrive if problem not solved direct disconnect cpu power connector when system ON then reconnect when system ON
\015\012if your problem not sloved check your power supply voltage as a given below by color
\015\0121 - Yellow = +12V 2 - Blue = -12V 3 - Red = +5V
\015\0124 - White = -12V 5 - Orange = +3.3V 6 - Black = GND
\015\0127 - Gray = PG +5V 8 - Violet = SB +5V
\015\0129 - Green = PS ON +5V
\015\012you can see that SMPS work or not by Green & Black wire shorting if fan is start means it ok if not means it not ok
Try this :
\015\012
\015\012- replace your power supply with an AT power supply
\015\012- try to check the compatibility of your computer
\015\012-
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