My hp system does not boots up, and there is not even error beeps?

check the ram card. also the battery on the mother board if the are fine then the mother board may have gone.

Have you checked it with batteries does it run the same way

Hello the manual can be downloaded here:

http://www.mercury-pc.com/downloads_list.php?productid=684

Check the ram modules, and the graphic card.

How many beeps comes, when you start the pc ??

Here is a list of beep codes:

http://www.computerhope.com/beep.htm

One long beep is a ram module failing.
Try insert one module, and reboot.
The problem could also be, the power supply.

Here is a fault finder guide:

http://www.tomshardware.co.uk/forum/261145-13-perform-steps-posting-boot-video-problems

Best of luck

It's telling you something is wrong. The BIOS (Basic Input/Output System) is detecting something is already wrong. Usually, this could be the RAM is bad, there's no Keyboard or Display connected, or *********** board has gone bad.

Check the easiest thing first (connectors to peripherals). Then check the RAM to make sure it's not gone bad.

It's hard to say w/o doing a lot of testing on which component is causing the problem.

Hi,

The green light at the back indicates that the computer is getting power and it also indicates that the Power Box which is known as the SMPS that supplies power is working fine .As there is no light on the front panel it can be that the motherboard has gone bad .To check that u need to open up the computer tower and then remove the memory cards(RAM) there can be one or more than one so with the card removed turn the computer on .In normal circumstances the computer should impart long beeping noise which indicates that the motherboard is fine and if there is no beeping noise then it means the the board has gone bad and needas to be replaced or serviced.

all the best

Using the manual for the Gigabyte GA-945P-S3 MB. Go to page 71 & you'll see bios beep codes for your board: AWARD BIOS Beep Codes 1 short: System boots successfully 2 short: CMOS setting error 1 long 1 short: DRAM or M/B error 1 long 2 short: Monitor or display card error 1 long 3 short: Keyboard error 1 long 9 short: BIOS ROM error Continuous long beeps: DRAM error Continuous short beeps: Power error As you can see there isn't a code for three short beeps. When you boot your system try to pause your boot up screen. See if the bios is reporting the correct total of memory in your system. Bios codes from the link below. http://www.computerhope.com/beep.htm#05 3 beeps for the AMI bios code reports Base 64K RAM failure. You can test your memory. Go to memtest.org Scroll down the site to just under the three screen shots. Download Memtest86+ V2.11 You have a choice in making a bootable floppy disk or a bootable CD-ROM disk. Once completed you boot your system to the testing program. Memtest will check your system memory. This should help. Thanks for using FixYa! Mike

Check if the RAM is seated properly and clean too. Check your power supply(SMPS) for the 3 voltages it should generate. RAM will not need any replacement however your SMPS may require replacement...sodeep

Check without Video Card, Processor , Memory and beeps are coming

If no then this is motherboar issue, I had the similar problem. So went to the local repair shop and got the power capacitors replaced,

The new ram you have installed, is it the same speed/type as what is already in the system?
Take out the new ram and leave the old in. Try and boot. If all ok, swap out the old ram for the new and see if you can boot. If the system does not boot when trying one of the above, you know it's bad ram. If the system boots with the old ram and the new ram installed seperately, i'ts likely that you have two different types of ram. Check your old ram and see what spec it is. Your new ram should be the same. Compaq do not list a four beep error on boot, but my guess is conflicting ram.
http://www.bioscentral.com/beepcodes/compaqbeep.htm

i have this problem... my laptop still doesent work but to switch it on just rap it in towels or clothes or even put under ur pillow and leave it there for half an hour keep on doing this and it will switch on thanks