If you have an old and slow system, consider buying a newer system with a new motherboard in it. If it’s still under warranty, have it replaced or fixed. If the computer still won’t start, then you found your culprit. Note that this is only based on our experience and may not necessarily apply to you so please do your own research when buying stuff online. We have been using Seasonic PSU for the past 5 years and we have never encountered any issues on our PSU. We recommend Seasonic’s offering that you can check from Amazon: If you’re looking for a replacement, it’s best to select higher capacity Power Supplies mated with high efficiency to protect your computer parts from unstable electricity and the likes. If it works, then your other Power Supply is obviously broken and needs replacement. If changing cables didn’t work, try using another power supply that you are sure is working. They usually have 20/24 pins and 4/6/8 pins and plugs in directly to the motherboard. These cables may vary in the number of pins but they usually have a design that are unique compared to other power connector cables so it’s easy to distinguish them. If you have a modular design, try switching cables especially the ATX power connectors. If this fixes the issue, try plugging in the peripherals one by one switching each time you boot your computer to see which one is broken.įirst, check your power supply. Of course, leave the power cable and the connection to the monitor. Remove your mouse, keyboard, external drives, and even ethernet cable. Remove all External Peripherals and Connectors. Looking for a new RAM? Check out Corsairs mid-tier offering from Amazon here: Again, one of your RAM is busted if this fixed the issue. Make sure to test all of them on each RAM slot. Switch your RAM if the issue is not fixed. If you have multiple RAM, try booting with just one. We can’t recommend anything right now because It’s very hard to get a hold of any GPU right now and everything is overpriced so good luck mate!īoot with one RAM. I’m sorry but you will need to buy a new one. If your CPU does not have integrated graphics and requires a discrete GPU to display anything, you’re out of luck. If it doesn’t work, then it’s a dead GPU.
To check the health of your GPU, try plugging it into another computer to see if it works. However, your GPU is busted or something is very wrong with it if this fixed your issue. If this does not fix the issue, move on with the next part.
CPU LED ON BUT COMPUTER WORKS FINE HOW TO
How to check which part of the computer is broken?īoot without GPU. If none of this fixed your computer, it is highly likely that a part of your computer is broken and needs replacement. If you don’t have any or just want a spare, you can buy one from Amazon right here: (based on our actual experience) CMOS batteries are relatively cheap. An empty CMOS battery will trigger a red CPU debug LED. If you tried resetting the BIOS and your computer still won’t start, this is the next step to do. You also have the option to remove the CMOS batter for 5 minutes or more. There are usually a jumper in the board that you can short to do this.
CPU LED ON BUT COMPUTER WORKS FINE MANUAL
To do this, check on the manual of your board or see the website of your manufacturer. You already checked all the parts and the computer is still not fixed. To fix this, check on your storage devices to see if there are any loose connectors. Boot device is where your operating system is stored. Check on your card if you have plugged the correct power connectors and that your card is fully inserted to the PCIe slot.īOOT – a lit red LED for BOOT means that all boot devices cannot be read or detected. VGA/GPU – a lit red LED for VGA or GPU means that your dedicated Graphics Card is not detected.
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