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PC wont turn on Power supply and CPU turn on for 2 seconds and then stop Replaced power supply but does the same thing?
Wiki User
∙ 18y ago
If you've replaced the power supply with a known good power supply (I've seen more than one case where the 'new' power supply was defective) there are 2 other things I can think of that may be causing this. First of all, it could be that there's a cooling problem with your CPU. More than likely, if this is the case, the heat sensor on the motherboard that lets the computer know the CPU temperature is faulty. This is fairly rare. My second idea, unfortunately, is the motherboard. There just aren't too many things that cause a computer to turn off that quickly. One good way to make narrow it down to the motherboard is to strip it down to just the CPU and motherboard and power supply. Disconnect all drives and remove all add-on cards (video, sound, NIC, etc.) The goal isn't to get it to boot per se, but to see if it stays on. You should have ONLY the motherboard with the CPU and power supply plugged in. If it DOES stay on, start putting things in one at a time to figure out what's causing the problem. If this doesn't help or you need additional info, let me know and I'll get back to you ASAP! :)
Wiki User
∙ 18y ago
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If the power supply does not spin what should you do?
infact i think the power supply be replaced with new one. infact i think the power supply be replaced with new one.
A technician has determined that a computer is failing to boot because of a power supply that is not supplying power to the hard drives What is the correct course of action?
No attempt should be made to repair the power supply. The power supply should be replaced with a power supply of equal or greater wattage.
Replaced power supply and computer is now running louder why is that?
The power supply that you replaced the old one with might have a louder, faster fan inside. Also, your last power supply could have broke down due to it's fan being shot and it wasn't operating at all.
How can a power supply be repaired?
A computer's (PC's) power supply is a sealed unit and should be replaced as a whole - It is dangerous to try and repair the inside of that sealed unit (that is why it is sealed).
Can a 12V 3.5A lcd monitor be replaced with a 12V 4.5A power supply?
Yes. However you will not be able to see anything as the 12V 4.5A power supply does not come with a screen.
What is the power of a power supply?
power supply is a device that supplies electric power to electrical load
Full form of UPS related computer?
UPS = Uninterruptible Power Supply
Can you add watts to a computer or do you have to replace watts?
Funny phrasing - but I assume it is about adding a bigger power supply. Answer: power supply must be replaced with one of higher nominal wattage. No way to "add watts" otherwise.
What is power supply?
If it is a computer power supply it is the box that gives the computer its power from the outlet.
What is application of power transistor?
Power amplifierPower supply regulatorSwitching power supply chopperetc.
What is Redundant Power Supply?
A redundant power supply is two or more units in one package, where each can supply the full amount of power to the system, such that if one fails, the other will take over and the system never goes down. In most modern redundant power supplies, the dead one can be replaced while the system is still running, called hot-swapping.
Regulated power supply?
all about regulated power supply
