I want to fix my current computer, change the monitor, and repair the main unit

The display now doesn't have the brand new 15.

Second-hand 15 is about 300 like that.

The second-hand 19 is only more than 500.

The new ones are 700 900

Now only high-end motherboards are sold for 1200

You don't know what the motherboard is.

Hard disk words 300 500

It's all a few hundred gigabytes.

If you are not familiar with it, you can buy the brand machine directly.

The warranty is more secure.

A motherboard 1200?? Fooled, right? 700-800 can buy a brand of 19-inch LCD monitor.

Landlord: Now the new LCD is basically the smallest 19 wide, and a few have 17 positive screens, but it's not cheap. Now the Great Wall M99 19 is about 800 yuan, and 1000 yuan is too expensive.

Change the motherboard on 1200 They are too dark, the notebook is not so expensive, if the maintenance is so expensive, don't repair it, build the machine directly, about 2600 yuan, you can save a set of AMD dual-core machine, 2G memory 320G hard disk, even the monitor "19 LCD", keyboard, mouse, camera, speaker, headset. If it's higher than this, it's their black

1200 yuan for a motherboard !!

Make no mistake, what a motherboard. Worth 1200 yuan From your description, the configuration of your computer should be very poor, and it will be a few dozen at most to change the motherboard. How will it cost 1200.

3. All of them are generally due to loose memory modules caused by handling, or poor contact of display data cables.

Handling suggestions:1If the monitor is powered on but no signal is displayed, turn off (if the short press of the power switch is invalid, press and hold the switch until the power indicator goes out or directly unplug the power cord) Power off the case, replug and unplug the memory module, and wipe the gold finger with an eraser in one direction (the back of the thumb fingernail is also fine), if possible, it can also be installed in different memory slots, and then turned on after installation (before operation, you should also touch the wall with both hands to release your static electricity or wear anti-static gloves). If you can't do it, then it's simpler:

Palm or kick the chassis once or twice (pay attention to the location: the front of the shell on the left and right sides of the chassis that does not have an interface at the back; Attention said: Don't push too hard, of course, don't be weak).

The above may need to be repeated, and if it doesn't work, you need to replace the memory module. If you have more than two memory modules, you need to test them one by one.

2.If the above operations do not work, turn off the power and turn on the chassis, reinsert the graphics card, and plug in the data cable between the monitor and the graphics card. If it still doesn't work, consider that the cable or graphics card is damaged, then replace it with a new one.