Desktop power supply failure and solutions:
Computer power failure:
1. The pv itself is intact and, as a result of the failure of the main plate or data line, certain parts are not in a good position to read the disk solution: when cpu, power and other parts are excluded by substitution, the failure is locked on the power source. Computer power is insufficient because of increased pv power, which makes it impossible to read disks. Power may be replaced or the pv may be unmounted and the failure may disappear。
Insufficient power power also leads to the unprovoked restart of computers, as well as the replacement of larger power sources。
2. Computers are not working properly or their performance is unstable
Turns on the total power of the computer, and observes that the computer's “power” and “hdd” signals are lighted and press the “power” after the button, the computer starts self-censorship and hard drive, after which it is unable to work, even if the rebooting key does not react, but sometimes it can start normally and perform unstablely。
This failure is generally due to a mismatch between power supply and other components, mainly in the following areas。
The width of the start pulse provided by the power supply does not meet the requirements of the main plate。
The pulse width provided by the main plate to activate the atx switch did not meet the power requirements。
Equipment such as the main plate, hard drive, etc. Are activated with excessive current demand, causing excess power protection。
Solutions: replacement of a large power power source and consideration of replacement of the main panel if the power cannot be replaced。
Five practical solutions with insufficient power from computer power
1. Check frequency of graphic cards
If the frequency of the card is too high and the core voltage of the card does not increase commensurately, the card may be unstable, which is intermittently inoperable, and computer maintenance is one of the manifestations of instability. So if the graphic card has an overfrequency, it will be reduced to the default setting and the core voltage will have to be restored。
2. Replacement of video card power interface
The design of the power interface of the six-inch card from a number of power sources is problematic, so various combinations can be tried, with shanghai computer maintenance to maximize the power output capacity: both six-inch interfaces are trans-shipped with a four-inch d port; one six-inch interface is trans-shipped with a d-type port; the other one still uses a six-inch interface from the power source; and both six-inch interfaces use the power source. This approach would normally solve the problem if the “one/two/two/v output” within the power source resulted in a malfunction。
3. Replacement of larger power power
In fact, the biggest cause of this failure should be on the power source, especially for computers that use high-end graphic cards, which usually have considerable power at start-up, and poyama computer maintenance, if power peaks at this threshold, may result in a situation in which power can sometimes be activated, and sometimes not. So it's necessary to replace a larger power source. General gtx470 or more, with a platform with a high frequency q4 processor, requires power of 600 w or more, while hd5850 or more, with a high frequency q4 processor, requires at least 550 w。
4. Replacement of graphic card slots and dvi interface
There are now two pci slots on the medium- and high-end main plate, and different pci slots differ in terms of power supply and bandwidth. First try to switch the graphic cards to other pci slots to see if they can get back to normal. Second, replace the dvi line with an interface. Note that, before replacing pci slots or the dvi interface, it is important that these interfaces be cleaned up once to avoid the impact of accumulated internal dust。
5. Upgrade main board bios and restore to default settings
Although the probability of such problems arising from the bios master plate is rather small, it cannot be ruled out, especially in the case of the second-line brand, where the maintenance of the shanghai changning computer is more likely to cause various malfunctions due to the bug in the bios. Therefore, as much as possible, the bios was upgraded to the latest version, without any operation to keep the bios in default to see if the computer could be properly activated。
Inadequate power supply, which is most likely to result in systems not being activated or computers being restarted again, generally occurs after hardware upgrades, resulting in a significant increase in overall platform power consumption as a result of hardware upgrades, without upgrading the user's original power supply, thus creating a low success rate
