It was working and it stop,when ever you press start it will stop and it will show on the screen system check failed blinking,onless you swish the power off and on the sreen will come normal but when press start it will stop and system check failed appier.
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If you have a disk in the dvd, remove it and try to start. If that fails press F8 while starting and see if you can start in safe mode. If that fails , you will need to insert an operating system disk , and when you get the disk info loaded on the screen, type fixmbr . Hopefully one of these will work
As you mentioned, the cursor keeps blinking, this means that the system is not able to locate the hard disk so that it can start your operating system. Ensure that there is no disk in the CD/ DVD rom and open the bios by pressing F2, DEL, F10, or whatever key that is assigned to the bios. You can find this at the time the system starts. Enter the bios and restore the bios to default settings. After restoring the bios, save the settings and restart the system. This may resolve the issue.
LONG PRESS MODE BUTTON-KEEP IT PRESSED UNTIL 12 STARTS BLINKING;
USE UP /DOWN BUTTON TO ADJUST HOURS...
THEN SIMPLY PRESS MODE AGAIN, NOW MINUTES 00 IS DEFAULT WILL START BLINKING;
USE UP/DOWN BUTTON TO ADJUST MINUTES;
AGAIN PRESS MODE, SCREEN WILL SHOW YEAR 2002 DEFAULT BLINKING, USE UP/DOWN KEY TO ADJUST YEAR;
AGAIN PRESS MODE, SCREEN WILL SHOW MONTH BLINKING, USE UP/DOWN KEY TO ADJUST CURRENT MONTH;
AGAIN PRESS MODE, SCREEN WILL SHOW DATE BLINKING, USE UP/DOWN KEY TO ADJUST YEAR;
AGAIN PRESS MODE, SCREEN WILL SHOW 12:00 BLINKING WITH ALARM SIGN (FOR ALARM SET);USE UP/DOWN KEYS TO SET ALARM, FIRST HOURS AND THEN MINUTES FOR ALARM; THEN ON PRESSING YOU CAN SELECT SNOOZE MINUTES;
AFTER SNOOZE ON PRESSING MODE AGAIN YOU CAN SELECT DAY COUNTDOWN TO SELECT 999 DAYS COUNTDOWN FROM CURRENT DATE;
In 19 years of working on computers I've seen 1 bad Intel CPU and it still worked it just showed the wrong processor speed. I'd eliminate the CPU being the problem. Generally if you have a bare system with motherboard, ram, keyboard and video and they turn on the system is good. The video may cause a crash if it's bad somewhere in the bootup process going into windows but it shouldn't stop the initial bootup process. The area I would likely suspect is the hard drive. If the arm inside the drive that controls the heads is loose it can cause the drive to read sometimes when cool and then to start slipping and not read when the system is warmer. If you can get into the bios there should be someplace there to check your temperatures and voltages. Those might be a suspect area. If the power supply isn't delivering the proper voltages or the CPU is getting hot could cause problems also. I'd like to hear more about what you're seeing on the screen when this system fails to boot. Does is show the ram countup, system devices and hard drives as detected in the bootup process? Or is the screen just blank. When it doesn't boot does the hard drive light blink continuously?
the BLUE BLINK you speak of . .
This is the microsoft screen of death . .
This normally suggests a hardware failure, of memory issue.
Firstly, have you installed or uninstalled any hardware ??
When you power up , keep pressing 'F8' - This will allow you to start your PC in a restricted way (you can then establish if any hardware is failing or HAS failed.)
You will be able to re-install any 'upset' drivers from here via the control panel.
At a minimum, you will be able to recover any images / documents that you require, prior to a re-format and installation / system recovery...
Keep me informed if you progress . .
Press F8 as it restarts.
Select Safe mode and see if it workes.
Restart PC again.
Press F8 as it restarts.
Select "Last known good configuration"
If this does not work either,
Do a system restore.
check at the back of the tower you would find 4 LEDs(small lights) labeled ABCD in a row or you might have 1234 on the front panel. note the status of these LEDs when the problem occurs and check for the solution accordingly on the support.dell. website.
would also suggest to disconnect all the devices (keyboard mouse printers etc.)next time the problem occurs and then try to start the computer