Operating system not found

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Your computer has been unable to read from your disk-drive, and so it tries to communicate through your Ethernet cable, hoping to connect to a "boot-server", i.e., another computer that would feed a copy of Windows through your network connection, so that your computer can load Windows. If there is no "boot-server" on your network, then the 'PXE' (Pre eXecution Environment) reports that it has "failed".

But, it's your disk-drive that either is "dead", or not getting any electrical power (loose connector? or dying power-supply?) or the data-cable between the motherboard and the disk-drive is loose/disconnected.

Hola Sorry to say but if this is the right one i searched for the manual found
http://download.lenovo.com/UserFiles/UserGuide/en/User's%20guides%20and%20manuals/K1/Lenovo%20IdeaPad%20Tablet%20K1%20Hardware%20Maintenance%20Manual.pdf
IT said as following:

As many as two passwords may be needed for any Lenovo IdeaPad computer: the power-on password (POP) and the supervisor password (SVP). If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on. The computer does not start until the password is entered.

Exception: If only an SVP is installed, the password prompt does not appear when the operating system is booted.

Power-on password

A power-on password (POP) protects the system from being powered on by an unauthorized person. The password must be entered before an operating system can be booted.

Supervisor password

A supervisor password (SVP) protects the system information stored in the BIOS Setup Utility. The user must enter the SVP in order to get access to the BIOS Setup Utility and change the system configuration.

Attention: If the SVP has been forgotten and cannot be made available to the servicer, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee.

Sorry hope this helps a little good luck

The computer power supply may have failed. Do you get the "post beep"?

If not- remove the BIOS battery, move the jumper to "Clear BIOS" . Insert BIOS battery, and try to boot. Put jumper back to normal position and try boot again. If you do not get the post beep, swap power supply for a known good one, and try boot again. If it still does not boot and give you a post beep, look to see if there is a removable BIOS chip- pop it out and put it back in.place, this will clean the terminals. Go through and reset BIOS, as above, and try boot. If the system is functional, it should now boot up, but prompt for you to run the setup program.

If it does not boot, the problem is relating to motherboard/processor.

Bad Power Supply.
Weak voltage power rail.

Enough power to light LED lights, and spin fans, but Not enough power to turn the Processor on.

1) ALL of the LED lights on at one time, use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts.

3) A typical Processor can use 51 to 125 Watts.
Just depends on what Processor it is.

No Processor operating, No computer.
No computer operating, No signal on the monitor.
NO video signal to the monitor from the computer)

Need guidance in replacing your Power Supply, please state in a Comment.
Need guidance in choosing a correct Power Supply, I would be happy to give a few references for you to look at.

Regards,
joecoolvette

(Do you have a KNOWN to be good, Compatible power supply around that you can use for a test?
Perhaps in some computer tucked away in the closet, etc.
Maybe a relative or friend has upgraded to a better computer, and has an unused one you could borrow the Power Supply from)

Suggest you change out the Power Supply, with a KNOWN to be good, and compatible Power Supply.

[Compatible:
Must have the correct power cables, and the correct amount of them.
1) 20-pin ATX main power cable;

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

2) 4-pin ATX +12 Volt power cable; (Power for the Processor)

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

3) SATA power cable; (Harddrive)

http://www.playtool.com/pages/psuconnectors/connectors.html#sata

4) Standard 4-pin Peripheral power cables for the optical drive/s, and any fans;

http://www.playtool.com/pages/psuconnectors/connectors.html#peripheral

5) Floppy Drive power cable. Not used for a Floppy Drive in this case, but power for the Card Reader;

http://www.playtool.com/pages/psuconnectors/connectors.html#floppy ]

Must have the correct Form Factor.
The Form Factor of the Power Supply for the ET1161 is ATX.
Size of the Power Supply case is approximately 3-1/2 inches Tall, 6 inches Wide, and 6 inches Long.

Should have 250 to 300 Watts.

Why am I stating this? Because you, or someone you know, may have an unused computer sitting around that you can borrow the Power Supply for a test. (GOOD and Compatible)

From your statements, and my diagnosis, I believe you have a bad Power Supply.
Weak voltage power rail.

Enough power to turn on LED lights, and spin fans, but not enough to turn the Processor on.
1) ALL of the LED lights combined use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts of power.
3) A typical Processor can use 51 to 125 Watts of power.
Depends on what Processor it is.

I also base it on that eMachines uses low quality generic Power Supply's.
Bestec, or Delta, or another generic Power Supply manufacturer.

I also base it on that Power Supply failure is one of the leading causes of computer failure.

(If the inside of the computer, and the inside of the Power Supply, are not cleaned out on a regular basis as needed, this is also another contributing factor.

Use a can of compressed air for computers. Power unplugged to computer, and observe Anti-Static Precautions.
{Use the plastic straw in the ventilation holes of the Power Supply)


Feel the harddrive start? Yes. You feel the Platters inside the harddrive being spun by the spindle motor.

No Processor operating, there is nothing to find the boot record on the harddrive. The platters spin, but the Read/Write heads are not brought into play by the Actuator motor

[BIOS = Basic Input/Output System.
A small program that when the computer is first turned on, looks to see what devices are installed, does a Ram Memory count, then TURNS the Processor on, and hands the computer over to the Operating System.

An optical drive, (CD/DVD drive) will operate even if the Operating System doesn't. It's a mechanical device that uses 12 Volts.
(One example of an Operating System is Windows XP ]

How harddrives work;

http://computer.howstuffworks.com/hard-disk.htm

Normaly when you get the error that the operating system cant be found, it is a indication that the hardrive has either gone bad, or somehow some of the system files got deleted. I would say though since the hard drive light wont come on it could be the hardrive has shut down completely. But you still should see the company image of your computer when you start it up, (the bios screen)

A bad hardrive would be my first guess, 2nd problem if its not your harddrive would be a new power supply.

The windows file system has nothing to do with the new power supply. Possibly yes however that the windows registry was damaged before you replaced the power supply due to an abrupt switching off operation which may have damaged the boot sector within your HDD. The solution is as recommended by windows. You can use the windows setup CD to get this fixed. I suggest you run a chkdsk /r at some point during the repair when you get the command prompt C>. Check the following for further info.

http://michaelstevenstech.com/XPrepairinstall.htm

• First if you have move the computer recently, check that nothing has moved inside box and unplug cards if any including memery and replace again.

• Check switch if working, does it turn on if you hold button? If so New switch required.
  

• Most common problem: Power supply might be blown, see if the fan is running in the back of box when you start-up. Otherwise you will need to check a few things before you replace with new one. Check that the CPU fan inside box is running. Check that there isn't dust build up on fan stopping from running. Might need replacing. Try also taking out battery and starting up computer. If all else fails you will need to replace power supply with a 500watt or more power supply. If you have another computer on hand, you could try the power supply from that system as look as it has same connectors and try and run with that. If works then you know what to do. If nothing, the motherboard might be gone, or cpu even. Try also taking memory out and replacing. see if runs.
  

• Before you give up, unplug all cables to hard drive, cd roms and DVD-rom and try to turn on
  

power supply is probably shot and you are feeding a voltage way over what is needed. I have a dell that refused to operate one day. I went to www dot affordablesurplus dot com and found a 350 watt power supply with all the RIGHT plugs. Never had a problem since.