Just build this computer and after powering on:
No video, all lights and fans work. no POST. cd rom light stays on and opens, but does not close. hard drive spins. switch out hard (sata) with ide same problem.
Asus m3a78-t motherboard
AMD phenom 940 processor
ATi Radeon 4850 512 mb video
4gb corsair dominator memory 800
sony 16x dvd rom sata
300 gb WD sata hard drive Not sure what I did. Only my 2nd time building one, first one was perfect. thanks for all your help.
You might not have your BIOS set to display through PCI-E. Try plugging your monitor in through the onboard VGA or DVI port and see if that produces any results. If you see the POST loading up, go into your BIOS and set your display through PCI-E.
If you're plugging into the onboard ports already, try plugging directly into your video card.
If both won't display anything, I'd try switching out the monitor.
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Dear Client, unpluged all the data cables, power cables or wires, bios cell and RAMs. Everything should be unpluged from the motherboard for two hours and then reassmbled. It will work properly but when you reassembled it just plug with the follwing devices.
* Power Cables
* Data Cables
* Bios cell
* Processor + Fan
Do not attach CD-Rom or Hard Disk, just turn on the computer without Hard Disk and CD-Rom and try to enter in bios setup. I assure your problem will be solve. Now you can attach the CD-Rom and then try to boot up from the CD-Rom and in the last you should try to attach Hard-Disk. I hope you will do it step by step and get success.
Hi, This problem can be caused by various reasons check the power cord ,wall socket if your hear any beep sound then the rams could be defective the internal power supply may be defective the mother board can be defective.
Try another (Known good monitor). Or try you're monitor on another system.
Remove all memory except 1 DIMM. Double check all data cables (internally) & power cables. Remove the added video card. Try booting the system. Watch for the case LEDs to flash/blink, listen for hard drive spin up /cd-rom spin up. Lastly pull the battery & check with a volt meter. Bios battery should test no less than 3 volts. Post the correct MD rev.
Either the new power supply you purchased is not functioning correctly. But, assuming it is now that you are getting some form of power to your PC, it is very likely the motherboard. Whatever fried your old power supply (or it could have just been the power supply itself) most likely fried your motherboard in the process. Probably not the CPU since the MB can't even post.