Was working fine , but one day cannot switch on, changed power supply
changed ram, VGA pci express card works fine on another cpu, but there red led on is lighted on motherboard, cpu fan is not working , pls help.
I just lost my fourth KN8 motherboard and it always seems to take out the power supply unfortuneately. One I returned for the 3 year warranty and as a replacement it worked less than a month. These were on 3 different machines(cases and power supplies of various suppliers) so the mother board is the fault.
Will be hesitant to use ASUS boards again even though this may be isolated to this board only.
I dont know about the red light, but all main boards these days have a built in protection if the cpu fan quits. check the cpu fan connection, ensure that it and the heat sink are dust free. if still no go. update your question with exact info..e.g. does absolutely nothing.. how many beeps you hear..how long b 4 it dies.. final note: be careful what you touch.. static can harm more that most think and the oil from touching can retain heat.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Check the NUM LOCK led status when power on the computer if it is on and off when you press num lock key that means your cpu is working fine only issue with screen resolution for that when you power up th computer press F8 key 5 to 6 times then you can see safe mode and other menu.Enter in "enable vga mode " then go to display settings change scree resolution to 1024*768 then check. but if num lock led stay constant then open cpu cabinet cover reconnect RAM memory.Pull cmos cell from motherboard for 10 minutes then put it back. Reconnect pci or vga card if any. Reconnect processor and it's fan. Make sure motherboard is not ground with cabinet.Also make sure harddrive is recognized in bios if you are able to see bios. For that when you power up the computer press F1 or F2 or del or ALT+F2 key to enter in bios then check. Let me know if you need further assistance. Thanks for using Fixya.
you need to open cpu cabinet. Open back cover of cpu then refix the RAM memory. Pull cmos cell from motherboard for 10 minutes then put it back then all settings defaults. Make sure RAM is working fine. Try with another RAM .If you use 2 RAM memory then check with only 1 RAM 1 by 1. Open processor fan and processor then put it back . Clean dust from all parts . Reconnect both connection to harddrive. Make sure motherboard don't touch the cabinet. Remove pci card if any reattach vga card if you use pci vga card.Pull cmos cell cell from motherboard for 10 minutes then reconnect it.Then check. Let me know if you need further assistance. Thanks for using FixYa.
As you say has become red and no power to the hard disk. First check the power cable for any loose connections and check if it give power to the cpu and the fan placed on processor starts working as you start the power. If fan it starts and with in few seconds stops then your power supply/SMPS is weak or damage. So replace it for proper working of your computer. And if after power on all fines but red led on monitor and no power to hard disk Try to replace the hard disk power cables because they are not working because of it no operating system is detected and led of monitor is red. After replacing hard disk cables hard disk starts working and still no display or red led on monitor check the vga cable for loose connection or replace it.If you are using vga display from graphic card try to get display first from onboard vga slot.After it your problem will disappear and your pc run smooth and fine.
When you power up then after 12 seconds check the num lock led status on
key board press num lock key then if num lock led is on and off then
your cpu is working fine. For that make sure vga adapter from monitor
is connecxted to cpu is properly.Then when you power up the computer
press F8 key then you can see some menu enter in "Enable vga mode " then
go to display property and change screen resolution to 1024*768 then
apply and check. But if num lock led is constant then then you need
to open cpu cabinet cover. Then reconnect ram memory .Try it in
different ram slot.Make sure motherboard is not ground with
cabinet.REmove pci or other card if any. Then check. Pull cmos
cell from motherboard for 10 minutes then connect again. Also
reconnect processor and it's fan then check. Let me know if you need
further assistance. Thanks for using FixYa.i
Two beeps means that you need to check your RAM. Try changing the RAM module and see if it working? If you have any display card (AGP/VGA/PCI or PCI express) installed then you need to check that it is properly inserted in the slot in the motherboard. Also check for any loose connections in display card.
You motherboard has onboard video. It's possible it needs to be disabled and the option changed to use the pci or pci-express slot for the Ati card you installed. Since you have no post error beeps this is the best place to start. Also I had built a system not to long ago and had a similar problem. Resetting the cmos on the motherboard (usually a pin combo) solved the issue.
Start by hooking up your vga cable to the onboard video.