I have a hp compaq d350 sff we used it for a couple weeks and now when we try to turn it on all it does is beep three times over and over. The 2 lights that are under the power button are both red, one of them turns green when you hold the button down but as soon as i take my finger of it it turns red again i,m not sure what to do HELP!!
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Re: will not boot up
The beeps are error codes there should be a system what it sounds like is 3 beeps then a pause and it starts again. go to www.support.hp.com and click on drivers and downloads then type in your model number and download the manuals there will be a chart stating what the beep code means if you have a warranty go to the liive chat and just have there technicians tell you what it means to save time then repair the error
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Sometimes the button to get into the Settings/Bios is F1 or F2.. just go through and test each one of these out. Also sometimes just one press isn't enough, tap on the key a couple of times ot make sure the computer recognizes it.
Your best bet is to work from the existing processor model number, since manufacturers can change the motherboard in a given model of computer from one range of serial numbers to the next. They sometimes also offer the same model of computer with different processors and motherboards at different prices. So you can not tell much from the model number of the computer.
May I also advise you that changing a processor requires a little special procedures, equipment, and knowledge these days. It is not just unplug one and plug in the other any more. If you do not know what you are doing you could easily "fry" the new processor from excessive heat, due to incorrect installation. So look for some help if you are not sure of the details for replacing a processor chip. It's not hard, just that some things that may not be obvious are critical.