Question about Computers & Internet
No display and loud fan noise
Posted by Anonymous on
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Posted on Jan 02, 2017
The fan/heat sink on these models get plugged with dust very easily, use an air compressor or can of air to blow the dust out of the heat sink and fan. In extreme cases the thermal paste gets dried out and needs to be re-applied to properly cool the processor.
Posted on Feb 10, 2009
The RAM maybe faulty, try reseating the RAM, if that doesn't work try one RAM modulel at a time.
Try testing the RAM in another computer or take it to your friendly computer shop.
Posted on Aug 19, 2009
SOURCE: computer will not start
It all depends how many beeps there were.
Diagnostic LED Explanation Table Number of 1-second red LED blinks followed by 2-second pause, then repeats:
2-processor thermal protection activated
3-processor not installed
4-power supply failure
7-PCA failure (ROM detected failure prior to video)
8-invalid ROM, bootblock recover mode
I have only really come across 4 beeps = order new Power Supply or 5 Beeps = reseat the memory and hope it works
Posted on Jun 22, 2010
That "PCI Serial Port" is probably part of a PCI modem that is connected into a PCI slot on the motherboard.
Access the manufacturer's web-site: http://support.hp.com
and enter 'dc7700p' and do a search for device-drivers for your computer.
Download the device-driver. Install it.
Posted on Feb 17, 2011
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