Question about HP Pavilion TX2510US Notebook

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My computer does not seem to boot up when I switch it on...the lights go on on the LED indicators that suggest the computer is working and there is initially a sound, but the screen remains black. It is as if the computer is starting up but seems to get stuck.

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You've got a failed backlight - requires a new inverter assy - not an easy component to replace.

Posted on Jul 08, 2010

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I have HCL Ezeebee desktop computer when we boot the system monitor, keyboard, mouse blink for a while and monitor (HCL) show 'no signal' message, and keyboard num lock led not display mouse i


No signal at the monitor indicates (if you know the monitor is working ok) a failure of the graphics chip or graphics card, The lack of indicator light on the num lock LED and the lack of power to the mouse would indicate that there is a major issue with the motherboard.
you can try using another monitor to confirm the problem lies with the graphics, and in the case of the keyboard and mouse, swap them for a usb version, if they work, the Ps2 ports are probably damaged.
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Power failure,command display (no bootable cd)


It seems that your first boot was on cd or dvd, or may be your hard drive did not detect, to check both of them go to BIOS set up by pressing F2 or Delete on your keyboard to enter set up. When you are in set up mode go to Boot menu (if you can not see boot menu go to advance). In a boot menu select HDD as a first boot and Cd or DVD as a second boot, if you can not find your HDD it means that your HDD did not detect, and you need to replace it with a new one.
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The last led light blinks green and sometimes it turns solid red


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Problem booting up


Potential source of problems:
1. The Operating System is corrupted
Reinstall OS with WINDOWS installer CD
2. Your Boot Loader is corrupted
Reinstall OS with WINDOWS installer CD
3. AC adapter/Battery not working properly
4. RAM is defective

Thanks, Cheers!

Apr 20, 2010 | HP Pavilion TX2510US Notebook

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My HP Pavilion a1050y won't boot up.


So you've checked the supply, but you didn't replace it, right? Sounds to me like that's your culprit. It's not able to supply the current to run the processor (the biggest draw) and the output is dropping too low to run the system. A new supply should get you running again.

Mar 06, 2010 | HP Pavilion A1050y (PU131AV) PC Desktop

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LED does'nt work on tail light but conventional bulb is working


Your description indicates the replacement led bulb is either defective or not a direct replacement for the ordinary bulb, which I assume is a 2-filament stop/tail type because if you have a good ground and both supplies are present as indicated by the fact the ordinary bulb worked fine, the led should similarly work if it is good.

I suggest you check the supply voltages while the led is fitted. It might happen that some device in the lighting circuit is monitoring the amount of current or resistance of each bulb and will not provide a supply unless it "sees" the correct amount.

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Computer won't turn on


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Flashing Lights when powered down


The flashing LED is because your system is in "sleep" mode. By default windows Vista puts your computer in sleep. What this means is it doesn't shutdown the power completely it leaves a little going through certain computer components (more specifically the ram) to speed up the boot time when the power button is pressed again.

In XP a the default shutdown scheme is a complete shutdown where power is turned off after the shutdown process is done. If you are using XP you are putting your computer to sleep when shutting down.

As for the boot problem. Newer motherboards have an LED on the actual board to indicate that it is receiving power. If it is of either the power supply switch (at the back of the case) if off or the motherboard connection is loose and the shaking makes it fall into place. (Shaking is usually not necessary and indicates a problem...)

There are a few possibilities I can deduct from your description:
  • the connection from your power supply to your motherboard isn't properly seated and is causing this
  • the power supply switch (not the case switch) is being  turned off and results in the computer taking a few seconds before the internal LED become solid
  • ... the dreaded sign that the power supply is failing and is on it's last legs...
My suggestion is to check all connections and if that doesn't work borrow a power supply from a friend and swap them to see if it boots properly.

(If a friends with a spare power supply isn't an option a local PC repair shop should be able to help you out... but probably for a fee...)

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