I have a music keyboard, KORG pa3x, It will not start at all since last time that it froze! After I turn it on the screen is just black, not even the bios will come on!

SOURCE: green light, black screens, no sound, needs new battery???

The alarm is just a coincidence i suspect, green light comes on and stays on probably not the battery at fault. It would be red.
If the green light goes out and screens just flash one of your screens are at fault or a loose ribbon connection.

SOURCE: Laptop Turning On But Nothing Happens - Replaced Memory

This does sound like a memory problem, and it more likely that a memory chip is bad versus the memory slot. The slots will be numbered 1&2, the memory will generally work in either, but the 1 slot is preferred. Try starting with just one chip in, try both slots, then try the other chip. It may just be one chip that is bad. If it is the slot, it shouldn't hurt the chip, but the motherboard will need replaced in order to fix it.

SOURCE: Blank screen with cycling colours (no BIOS; no POST)

Try running diagnostics. Tap F12 repeatedly on the dell logo till you get the boot device menu. Choose diagnostics. Go through it.

If it doesnt even pull up the diagnostics, you can follow this walkthrough from dell's website.

SOURCE: COMPAQ ARMADA E500 WON'T TURN ON!

It happened to me and I went on the HP site and found how to fix it. Under the keyboard you can find the ram. If you take out the battery and disconnect it from the mains, then take the ram out and put it back in again, it can sometimes solve the problem. If not then there's something wrong with something else inside it.

Mandeep Singh

• 1184 Answers
• Posted on Aug 15, 2009

SOURCE: "z" light comes on, then battery charge indicator -Doesn't start!

Hi,
If there no indicator of power on the laptop , There could be two problems either the AC adapater is bad or the motherboard connector pin or board is faulty.
If you see power light activity , but the screen is blank. try connecting an external monitor to the laptop. Press the Fn+ F8 key to toggle the screen to the external display. If you see the display on the external screen then the LCD is bad . Otherwise its your video card.

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proton