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After pushing the power switch, one hears an accelerating whine (for 5-10sec), CDROM drive LED flashes then nothing; NO monitor activity occurs and power switch LED flashes (1 flash per 2 seconds) for hours afterwards, even with the power cord removed (but only for 10-15 seconds). After being unplugged for 1 hour, plugging back in and pushing the power switch only turns the fans for 1-2 seconds and the flashing returns. Any ideas?
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<span>Instructions</span>
Things You'll Need:
<ul>
<li>
<span>A Startup Disk Or A CDROM With The Operating System On It</span>
</li></ul>
<ol>
<li>
If
your desktop computer does nothing at all when you try to start it,
first check that the power cable is securely plugged in at the back of
the computer as well as into a working power outlet. It's amazing how
often this is the case.<br />
</li>
<li>
If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.<br />
</li>
<li>
If
the computer is plugged into a surge protector, see if the surge
protector has a reset switch that you can push. (If it doesn't have a
reset switch and the problem is with the surge protector, it will need
to be replaced.) Try plugging a lamp or other device into one of the
surge protector's outlets to make sure it's working.<br />
</li>
<li>
If
you can hear the computer's fan or hard-disk drive, or if you can see
indicator lights on the main unit but the monitor stays dark, make sure
that the monitor is connected to a working power source, that it's
turned on and that it's securely connected to the computer via the
video cable.<br />
</li>
<li>
If
the monitor and computer have power but the computer displays a
"Non-system disk or disk error" message, check to make sure you didn't
leave a disk in the A: drive. If you did, eject it and restart the
computer.<br />
</li>
<li>
If
the operating system still won't start even though the computer and
monitor have power, try restarting with a Windows CD-ROM in the CD-ROM
drive or, if you've got a Macintosh, with a Mac OS disc in the CD-ROM
drive. (You can start a Mac from the CDROM drive by holding down the C
key while starting up.)<br />
</li>
<li>
If
the operating system then starts, your problem is probably with the
startup hard drive or with the operating system installed on it. If you
can't fix the drive, you'll have to replace it.<br /></li></ol>
Even if the hard drive is bad you should still see the normal bios post screens and then an error message saying "no boot device found" or something similar. If you have a monitor in your home you should attach the vga cable from it onto the vga connection on that laptop. Then turn on the laptop and see if you get a picture on that monitor. If you do then either the laptop lcd inverter is bad or the lcd itself is bad. If you don't get a picture you may have to press a toggle button or buttons on the laptop to switch to the external lcd. Usually this is Fn plus another F button on the top.
A Startup Disk Or A CDROM With The Operating System On It
Step 1
If
your desktop computer does nothing at all when you try to start it,
first check that the power cable is securely plugged in at the back of
the computer as well as into a working power outlet. It's amazing how
often this is the case.
Step 2
If you're starting from a button on the keyboard, make sure the keyboard is connected to the computer.
Step 3
If
the computer is plugged into a surge protector, see if the surge
protector has a reset switch that you can push. (If it doesn't have a
reset switch and the problem is with the surge protector, it will need
to be replaced.) Try plugging a lamp or other device into one of the
surge protector's outlets to make sure it's working.
Step 4
If
you can hear the computer's fan or hard-disk drive, or if you can see
indicator lights on the main unit but the monitor stays dark, make sure
that the monitor is connected to a working power source, that it's
turned on and that it's securely connected to the computer via the
video cable.
Step 5
If
the monitor and computer have power but the computer displays a
"Non-system disk or disk error" message, check to make sure you didn't
leave a disk in the A: drive. If you did, eject it and restart the
computer.
Step 6
If
the operating system still won't start even though the computer and
monitor have power, try restarting with a Windows CD-ROM in the CD-ROM
drive or, if you've got a Macintosh, with a Mac OS disc in the CD-ROM drive. (You can start a Mac from the CDROM drive by holding down the C key while starting up.)
Step 7
If
the operating system then starts, your problem is probably with the
startup hard drive or with the operating system installed on it. If you
can't fix the drive, you'll have to replace it. (See also How to Fix Bad Sectors on a Hard Disk and How to Recover Lost Files.)
The serpentine belt is the most common cause for whining sound when accelerating, try to understand if noise is coming from serpentine belt.
Also check power steering belt under steering column, and also the rotor and chain, thei do not make whining noise , but can make noise when accelerating.
You should clarify this a bit more, but please make sure all of your fans are plugged in and the no jumpers are set to over-clock the processor.Also, double check that everything is fundamentally compatible.
the led lights you see is actually a diagnostic light which has an equivalent meaning there should be actually 4 led lights you see is it a yellow green green green pattern and this is at the back of your computer? if that is the case it could be an indication that there is a device inside your computer that is malfunctioning. you will have to strip down your computer. remove all that is connected to the motherboard (hard drive, cdrom, memory, expansion card if any) disconnect the mouse, keyboard and monitor as well. should you hear a beep or the light changed at the back it means your motherboard is good and the absence of memory is being reported by the beeping sound. try to connect the device one by one
now if you are referring to the light at the dell logo infront it is just a monitoring light to indicate if your computer is turned on and the right side light is whether your hard disk is doing an activity
disc in the CD-ROM drive. (You can start a Mac from the CDROM drive by holding down the C key while starting up.)
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