Having problems with your Compaq Presario SR1810NX Sempron 3200+ 1.8 GHz Desktop PC ( Monitor Sold Separatley) (ER912AA) ?

Dear leecom 72 thank for immediate attention on presario 3200 sx 1810nx the problem is when i disconnect and connect the power cord the LED behind the tower or CPU box will glow green ,no problem untill that but when i turn the power button on the fan just rotates andstop the light will go off ,no response after that, i dont know wheather any thing in power supply unit gets tripping or any components get tripped or any problem in power supply components


Answers :

If you have a multimeter, you can test the voltage at one of the spare Molex plugs (power plugs that feed the hard drives and CD/DVD drives). If it reads anything other than +/-5v or +/-12v for either the red and its black pair or the yellow and its black pair, then your power supply is bad.

You can take the power supply out and have it tested at a PC shop. Note the positions of all of the cables coming from it for later. If it needs to be replaced, get one of the approximate same size in watts.
Hi densan
The problem could be one of two things (or possibly even both)
The PSU (power supply unit) could be faulty or the motherboard itself could be faulty.
Personally i would start with the PSU and work from there.
If you can get another PSU and try that, if it still suffers the same symptoms then its the motherboard.
If you have installed any new hardware recently remove it and try to power up again.
The fact you say that the LED light goes out on the PSU is a strong indication its the power supply.

Good luck and post back if you need anymore advice.
Repair Help & Product Troubleshooting for Compaq Presario SR1810NX Sempron 3200+ 1.8 GHz Desktop PC ( Monitor Sold Separatley) (ER912AA)

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