monitor loosing input signal after 20+ sec

[b12]

Hey all! I have heard this is the place to come for hardware help, so here i am. Hope you can help me out and thanks in advance.

So I just am putting together a pc out of some recently replaced parts here is what i am getting:

At boots up (Approx):
0 - 10 seconds: the fans spin up, I hear some clicking (disk access?) and the system startup info comes on screen.
10 - 20 seconds: everything appears normal and begins to boot the OS on the disk.
>20 seconds: the monitor looses its input signal. The power button on the case wont turn off the pc. (I have to hit the power switch on the back (PSU) to shut down.)
After shutdown:
I have to wait at least 30 seconds before turning the PC back on to get the same results above, else there is no "clicking sound" (disk access?) and the monitor never receives or displays any input.


Here is my setup:
mobo: ASRock 939Dual-SATA2 939 ULi M1695 ATX AMD
CPU: AMD Athlon 64 3000+ Venice 1.8GHz Socket 939 Single-Core
Video: MSI FX5200-TD128LF GeForce FX 5200 128MB 64-bit DDR AGP 4X/8X
Sound: Onboard
RAM1: 1GB (2 x 512MB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Dual Channel
RAM2: 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 333 (PC 2700)
PSU: 300W

What i have tried:
I have tried a different video card, an older ATI AIW 9600, with the same results.
I have tried unplugging just about everything from the mobo (optical drives, usb, case fans, front panel pins, 1/2 the RAM), except the disk drive, video card and psu of course. Same results as before occur.

I am suspicious of my PSU at only 300W. However after working the numbers on some online calculators I get 314W - 316W depending on the source. If this is accurate the PSU seems sufficient.?

I belive the mobo is good as it just came out of a different case w/ a 600W PSU where it was working just fine yesterday.

Any suggestions and help would be appreciated.

thanks in advance, -b12

 

[drjman]

What kind of monitor do you have?
also, try downloading a linux distribution called Knoppix, its a live CD OS. Try booting off that to see if you OS is hosed. It wont harm anything as it is ran off the cd. It also could be the monitor or even your agp slot (make sure the AGP is the primary for graphics display, may or may not matter). Maybe try booting into safe mode?

 

[JeepinEd]

I recently had a similar problem.
After troubleshooting the PC for hours, I tried unplugging my flat screen monitor for a few seconds.
That solved the problem.

 

[b12]

Originally posted by: drjman
What kind of monitor do you have?

Dell flat panel display 17fp or something like that. i have tried both analog and digital inputs.

also, try downloading a linux distribution called Knoppix, its a live CD OS. Try booting off that to see if you OS is hosed. It wont harm anything as it is ran off the cd. It also could be the monitor or even your agp slot (make sure the AGP is the primary for graphics display, may or may not matter). Maybe try booting into safe mode?

The OS on the disk is kubuntu, so if there were any problems during boot it would give a message... i believe. I was actually able to get through the entire boot process once and i was able to login, not soon after though i lost input to the monitor. I do have the live install cd for (k)ubuntu also, (which is a clone of knoppix * i think *). I will try that when i get home. I don't think safe mode is an option on my distribution but is will take a look a grub. Most likely i wont make it that far before i get hosed.

does anybody know what removing the battery from the Mobo accomplishes? Other than being told to do by a peer i would like to know why...

 

[drjman]

lol, ok so you have linux as the OS. Well, i don't have a lot of experience with Linux but i know Nvidia is not a big supporter as far as graphics drivers go. Your card would be the best supported though, so i am not sure if that is the issue.
battery being removed is like resetting CMOS, usually you do it in tandem with moving the jumpers. Try booting in verbose mode to see if there are any errors during the OS load. other than that, find someone who knows linux!

 

[b12]

I keep thinking its the PSU. What do you all think about that?

 

[drjman]

It could be but 300w sounds like enough for what you have setup. have you tried another? You really should be trying everything at this point.