Building desktop: no beeps, no video The mobo LED are on, fan is running but getting no signal to monitor. I've tested the video card in another pc and confirmed working. The only time the mobo beeps is when There's only one ram installed. Mobo is: Intel D850MD atx socket 478 Cpu : P4 SL6GQ northwood Ram : Samsung Rambus 256mb (four installed) Power : Zumax 115v/230v 10A/5A 60/50Hz Video : Sapphire RADEON 9250 128mb 64-bit, AGP 4X (1.5v) universal The CPU was salvage from a Dell mobo that no longer show video, just as it is now, simply power up then nothing. Shouldn't there be beep codes if it's a failed cpu?

old that is and UNDERSTATEMENT IF ever there was. 2009 made.
moved. desktop PC large.
1: monitor cable video not put back as it was or pins bent sloppy movers
2: PC fans spin or not. CPU and PSU it not PC has no power.
3: power lamp on PC must glow steady not blink does it , if dead this ,there is no power to PSU.
the monitor message only means video from PC is DEAD !
it does not know why only that is is dead.\ video signals
is this a VGA cable end to end
my PC has 2 VGA ports one on mobo and one on GPU card
only the one on card works. unless I remove the card.

Last guy on VISTA 32 bit on earth, yes? wow, brave./
ouch OEM lost the manual (retired, EOL sure)
AC cord to PC loose at ether end
not using AC power jack direct to wall AC?
other SIGNS on PC
no sounds from PC
no fans spin
PC beeps?
Blinking LED?
or 100% silent and one evidence of any life whatswever.
PS makes all right sounds fans etc.
but monitor set to wrong input port, via OSD.

that is it for now. lots more causes. we need all symptoms to progress.

Is it possible to try the monitor on another computer? If so try that. I've worked with motherboards that don't give a power up beep code (strange, I know), so after the checking the monitor, I would try removing and re-seating the video card, and memory, one at a time and see what happens. Is the cpu fan running? Check these things out. Is there onboard, integrated video in addition to the graphics card? If so, try using the integrated video port. If the cpu fan is running, and the power led and hard drive leds are working, then it's a safe bet it's not your power supply. It would have to be the video card, in my opinion .

I woud guess it's the MoBo but can no way guarantee that without testing it myself as I have the equipment to do so.

There might be a problem with your RAM you may check your RAM and clean it with a cotton cloth and fix it again or change your RAM and see
Or the problem can also be with your moniter
thanks

If your fan runs and the hard drive spins up, then you have a video card problem.
I'd do this: Disconnect everything inside the case but the CPU, memory, and video. Now try to boot. Also observe the fan on the CPU--does it spin?
If this fails, then your video has probably gone bad. Also--does your computer usually give you a "beep" when it starts up? If so, is it giving you a beep now? If not, you're failing the hardware startup test (POST).
So, your problem may be the video card. If your video is part of the motherboard, then you need to replace the motherboard.

Hi there

I would say it's the graphics card that's failed. You might get the same beeps for faulty card as removed card....

Take it to a shop where they can test a compatible card, before they sell you one or install one for you.

try with other ram if everything fails then motherboard is the culprit

Based on your previous troubleshooting, with both built-in video and alternate video card, I'd guess you have a bad mobo. Anything else that was wrong with it (RAM, CPU, etc) and you'd get beep codes.

Sounds like it's time for a replacement board. If the eMachine is out of warranty, it might make more sense just to go ahead and upgrade now, as they are so inexpensive. If you are capable of replacing the board yourself, that would be the cheaper alternative.

Hope this helps - remember to rate (and great troubleshooting, btw!)

Scott

While booting BOIS goes for POST check for detecting the all the hardware .

Disconnect all the connection to DVD, HDD, FDD from MOBO.
Rmove all RAM and start the ssytem from testing RAM Serviceability. If you listened a long intermittent beep place a single pices of RAM in MOBO ( repeat test with other RAM also).

Other wise your video card is unserviceable, if you have any addon plugins like NVIDA graphics card you can check

The beeps are beep codes. Were they short or long? Also do you know who makes your BIOS?