Common Problems that Cause the Computer to Fail to Start up

It is frustrating for us to meet the problem that the computer cannot start up. The following reasons of the problem may help you to figure it out. After knowing the reasons, it is believed that you can solve it without windows registry cleaning.

1. CMOS battery failed
CMOS battery failed. This shows that CMOS battery has almost been out of electricity. As long as you replace the battery, it will work.

2. CMOS check sum error-Defaults loaded
CMOS check sum error-Defaults loaded. Generally if it appears, it suggests that battery has almost been out of electricity. You should quickly change the battery. If the problem cannot be solved, it shows there may be something wrong with CMOS RAM. If your computer has not surpassed the quality guaranteed date, you can visit dealers for a motherboard.

3. Press ESC to skip memory test
This is because skipping of memory test for the second, third and fourth time in the CMOS is not set. On the startup of the computer, the memory test is performed for four times. Of course, you can also press ESC TO test memory. But it is too troublesome to perform it every time. So, you can enter COMS setting and choose BIOS FEATURS SETUP. Then set Quick Power on Self Test to Enabled. After saving it, restart the computer.

4. Keyboard error or no keyboard present
If “Keyboard error or no keyboard present” appears, check if the connection to the keyboard is loose or damaged.

5. Hard disk installs with failure
Hard disk installs with failure. This may be the situation that the power cord of the hard drive or USB data cable is not connected in a proper way. You can check if each wire of the hard drive is plugged well and see whether set of jumpers of two hard disks that attach to the data line is the same. If so, jumpers of two hard disks can be set differently. That is, one is set to Master and another is set to Slave.

6. Secondary slave hard fail
Maybe the CMOS is set in an improper way. For example, there is no secondary slave hard. But in CMOS secondary slave hard is set. Then the errors will occur. If so, you can enter into COMS and choose IDE HDD AUTO DETECTION to perform automatic detection of hard disk. It may also be the case that hard power and data line is not connected well or jumper of hard drive is not set properly. The solution can refer to number 5.