When I plug my PC into the wall (before I even try to turn it on) the fans come and the CD LEDs blink fast. Then I try to turn it on and nothing. I've held the power button for 40 sec and it won't turn on or off. The motherboard is a DFI NFII 400-AL. The two LEDs on the motherboard blinking are the Standby Power and DRAM Power. I download the manual and it says what they mean when on solid, but nothing about when they are blinking. I tried a second power supply (not a sufficiant wattage) to make sure it wasn't some kind of short, and the same thing happens. Any ideas what could be making this happen?
2006-12-24 09:53:41 · 3 answers · asked by lots-a-questions 1 in Computers & Internet ➔ Hardware ➔ Desktops
There are several possibilities.
- RAM is not compatible
- RAM module is loose
- one RAM module has failed, try removing one or the other
- CPU chip has failed
- Motherboard has failed
- Video card is loose
- CPU fan is not plugged in, or has failed
Notice that when you remove power completely, and hit the Power switch, the system might power on for a fraction of a second. When you put in the power cord again, and hit the Power button, it might also start to power up for a brief second. Notice if the CPU fan moves at that moment. That might indicate that the CPU fan is OK.
If you build a number of systems, it is easy to swap parts and determine which ones are bad. But when you are building JUST ONE, it is darn frustrating that the new ATX systems have many failure modes that prevent proper failure isolation.... and every darn motherboard is different. I long for the old days with the AT motherboards and power switch from the power supply. It was simple in those days.
Good luck and Happy Computing!
2006-12-24 10:02:36 · answer #1 · answered by Anonymous · 2⤊ 0⤋
It is a hardware problem. If you can not find the "blink codes" for the board, then you have to do it by trial and error.
Unplug everything, remove all cards, and take out the memory. Reboot. It code is unchanged, it is the power supply or processor.
If changed, readd the memory and boot again.
Continue adding cards and devices one by one until you find what is causing the problem. Repair that item.
Good Luck....
2006-12-24 09:58:41 · answer #2 · answered by dewcoons 7 · 1⤊ 0⤋
you're plugging interior the mummy board with the capability grew to become on? do no longer use 2 capability factors on the comparable motherboard, it somewhat is going to reason issues. be certain you're no longer attempting rigidity a sq. peg in a around hollow. computing device Repairman
2016-10-18 23:06:31 · answer #3 · answered by mctaggart 4 · 0⤊ 0⤋