Computer/Windows/Office/ Discussion Blog

Computer configuration: SL-65ME+ Celeron 800MHZ, solek, ST20GB, integrated graphics. Recently always black screen, and more and more frequently, really can not stand, so I asked for help to see. When I arrived at my friend’s house, my friend’s computer was black screen once 2~3 minutes in normal condition. It lasted 2~3 seconds each time.

First I doubt the power of a problem, but found that his power is the new century, but also with Taiwan regulator, estimated this part should not be a fault. The monitor is PHILPS’s. It’s very new and should not go wrong. Then boot into the BIOS, the results in the BIOS mode for a long time did not appear black screen, and finally check the temperature and fan speed, voltage, are normal, it seems that after entering the operating system failure. Check the video card, first replaced the driver, the failure is still. Observe the graphics chip, memory, no abnormal phenomenon. Finally had to reinstall the system, the result is still the fault. After checking, the hardware has no conflicts and the IRQ conflicts are excluded.

This can be puzzled, then found, as long as the restart after the first black screen does not appear, namely hot start not black. Why is that? Restart the system will be completely cleared, reset once, is it still power problems? Chassis power supply is normal, it may only be on the motherboard power supply circuit problems. Take apart the computer, check the motherboard carefully, and sure enough, the CPU around a number of GSC capacitors are slightly above the top. Second days, the motherboard to the maintenance department, found a few specifications of the same capacitor, change, boot hours, no longer appear black screen.

The capacitor problem usually causes crashes and restarts, but in this case it is very brief. It is estimated that the capacitor damage is lighter, resulting in capacitive charge discharge transient instability, causing voltage transient instability, and eventually a brief black screen. As for entering the BIOS without fault, I estimate that because only into the BIOS, the system hardware supply requirements are not high, the damaged capacitor can barely work. Once in the system, the power requirements of each component suddenly rise, the capacitor is difficult to continue to support, so the power supply is not stable, there is a fault. And in the process of exclusion, because the motherboard for a large brand products, good reputation, so that I overlooked the main board for inspection, so the troubleshooting of a lot of detours.

The capacitor for this fault board is green GSC T11A 105. The fault is not universal.

When the computer does not start, generally adopting “troubleshoot” to judge, and “listen” is mainly to have what kind of alarm and alarm sound, but sometimes we can not follow the routine play, especially the computer fault. I have once encountered such a situation.

Case summary: the author can not boot a computer, after observation, memory can be issued a normal “beep” sound, the hard disk can also read data normally, the host sounds all normal. Change a monitor, the problem is still, it seems that the fault is inside the host. First of all think of the video card problem, change a video card plug is not good, change a power supply is not good. Remove the PCI device on the motherboard, or not. But the host is functioning properly and cannot boot. Then the motherboard BIOS cleared, boot. The display lights, but before long, another question arises, whether to restart or shutdown after boot, and off machine.

Solution: I temporarily put the problem on the motherboard, is going to get the maintenance point, when I suddenly think of another thing has not been changed, that is memory. Although each boot can clearly hear a memory ring, indicating that memory is no problem, but after a memory, the problem is solved. To change the memory inserted in the other computer, appeared in common — long memory fault. And again inserted in the machine, but still can make a normal sound, the host operation sounds all normal.

Maintenance summary: fault memory quality problems generally is not open the machine and ringing (or sound), or drive a machine but crashes, Huaping, restart and other symptoms. But the memory of this computer can emit the same sound as good memory. So first of all, memory problems are not taken into account. The same test, but also finally try to memory. It’s a kind of experience for us, too.

Q: I’m going to upgrade my memory at the end of the year, but there’s a lot of fake memory and rework memory on the market right now. What can I do to identify it?

Answer: a lot of memory has a strong ability to overclock, so profiteers put get in by every opening overclocking memory after grinding and then printed on fraud, number of new parameters after sale. In fact, as long as we observe carefully under the strong light, we can see the difference. After polishing the chip has fluff feeling, dim and dark, and print the handwriting on the blurred. Of course, even even chip grinding process is saved, a direct replacement product packaging shoddy, can identify when we check the number of memory chips, some well-known brands can also call pseudo. When a memory is damaged and can not be used, often only appear on the surface of a memory chip chip, while the rest are intact, leaving space for profiteers fraud. Through the memory chip re welding, memory can be brought back to life. However, it is obvious that these types of memory often use different brands, models of memory chips, we can observe carefully to find. What needs to be reminded is that this memory, however cheap, is not worth buying because its security risks are very serious. In addition, we must also observe the circuit board is clean, burr, and so on, the gold finger is obviously there are traces left after the plug, and if there is, it is likely to repair memory. Excellent memory PCB board in hand should have a heavy feeling, and feel the quality of uniform, rather than a thin, and no sense of weight common semiconductor board. Good memory, PCB board edge is handled more smooth, feel without burr.

Every time the new computer is turned on, the system runs very slowly, no matter how it restarts. Finally, it was found that the utilization of CPU was 100% in boot manager. What’s the CPU usage rate, please? 100?

Answer: the performance of the new machine is generally not very poor, and when the large program is not installed, the utilization rate of CPU can not reach 100%. Such a situation shows that your machine has the virus in all likelihood, the virus in your machine when running a large number of system resources occupied, so the emergence of CPU utilization rate of 100% of the situation. Suggest that you use antivirus software to antivirus the system, antivirus must be anti-virus software to upgrade to the latest version of the virus library. If the antivirus system still can not solve the problem, the only way is to reinstall the system, install the virus firewall and network firewall to reinstall the system, and the protection level of the firewall is set high, that should solve the problem.

Q: the computer is dogged by bad luck from the date of birth, often unable to start or crash phenomenon, recently finally yibingbuqi. The fault is: the indicator light is on, press the power switch, the computer can not start, there is no response.

Answer: according to the fault phenomenon, and combined with some of the experience introduced in the article, I decided to take the first after the inside method to check. First check the external power connections, and all is well. Using the substitution method, the power, CPU, memory, and video cards are checked to prove that these devices are all good. Without doing two, the motherboard will also be removed to check, or failed to find a fault point. Isn’t that the problem of the power switch? Remember to see similar faults caused by poor contact of power switch before, switch off the power switch, measure with multimeter, and do not touch bad fault. What’s the matter? The check all checked, the accessories in the chassis to build a minimum system, only to keep the main board, CPU, memory, video cards and other necessary equipment, start the computer, everything is normal.

Compare the differences between the two systems; one with a hard disk, one without a hard disk, is it caused by a hard disk? Holding the try mentality, the hard disk is also connected to the smallest system, the result of the computer can not start. It’s really a hard disk problem. The author’s hard drive is Seagate 30G, although the performance is a bit outdated, but it can not be killed so soon? Placing a hard disk on another computer can also cause the computer to fail to start. It looks like this hard drive is forcing me to update. It’s heartbreaking to think that hundreds of oceans are flowing into JS’s pockets! The hard disk will get outside the sun look carefully, observe the hard disk circuit board, found no element burnt smell, also found no odor, just feel the hard circuit board is wet, there seems to be some water. Is that the reason? Put the hard disk in the sun for half an hour, and then back to the computer, press the power switch, ah, normal start, and saw a long time of blue sky and white clouds, troubleshooting.

The wet hard disk can also cause the computer to be unable to start the malfunction This is the first time I’ve seen you. It’s a rainy season, and the humidity is so great that friends have to pay more attention to moisture. The main reasons of this failure, because the author is using the ergonomic computer desk, the chassis is placed under the table, from the ground near, and in these days especially diligent, often watering mopping the floor, plus the wet weather, so the fault is probably. I hope the friends who have similar situations pay more attention to it, and it seems that it is not a good thing to be too diligent”.

Q: I just got a DIY computer. The video card is UNIKA X700, and the monitor is a Samsung 930B, all with digital interface. I often have the following tips to restart when using the DVI interface, and can not boot, You have not connected the: power cable to your video card. Please refer to the Getting Started Guide for proper hardware installation. when using the VGA interface is normal. Excuse me, what is the reason? How to deal with it? Is the quality of the product poor or compatibility problems?

Answer: the above problem is not hardware incompatibility or quality problems. But because there is no connection to good graphics card auxiliary power supply connection, which leads to insufficient power supply of the video card, so that the DVI interface which is sensitive to the electricity can not work properly. Now the power consumption of high-end graphics has climbed to more than 80W, the independent 4Pin power supply, as long as you open the case according to the instructions on the card, right auxiliary power supply line connecting good graphics, problems can be solved.