mb working and not working!!

[Guest]

Hello, I recently stepped into this problem with my custom built system.
First my config.
mobo: WinFast K7NCR18D-Pro
Processor: AMD Athlon XP 2100+
Memory: 3 Kingston 256MB PC2100 266MHz 32x64 DDR 184Pin
Videocard: maddog predator MX 440 8X GeForce4
HD: 4 maxtor 160 8MB
Power: Kingwing 350W

OS: Multyboot WIndows 2000pro and Mandrake Linux 9

The problem:

The system has been working perfectly for little more than a year, I only
had to replace a faulty PSU long time ago.
About 3 weeks ago when pushing the power button I didnt hear the bip that
usually is followed by the bios screen and the OS boot up. Holding the power
button for 5 second restarted the machine, bootup fine either on windows or
linux.
Few days later the same problem became more relevant, I had to restart about
4/5 time befor the bip came along and the bios screen.
To make it shorter now the behavior is even worse.
Powe button pushed, fans workin, no hd activity nothing on screen, traying
again for aout 20 30 times I get lucky and I see the cdrom light blinking
and the bios bips and the welcome screen, windows starts booting up, here I
have to scenarios, the first windows bootup screen the black with the white
progress bar, at soon as the progress reaches the end I get back screen and
only the fans are working, I have to restart again, if the progress bar can
reach the end the next windows screens appear and with the blue progress bar
reaching the end again everything goes balck, restart (well I have to
restart dozen of time to get to the windows bootup again) and if a get lucky
and widnows passes the firts 2 booting screens everything works fine until
the next reboot.

What I did to find the culprit:

Unplugged everything, only mobo and processor, no results
Unplugged only the HDs, again nothing
Unplugged video card, memory, cd rom and whatever is unpluggable in many
different order...nothing, still same problem.

I changed the battery and cleared the cmos, nothign again.

Every cables seems to be well plugged and just in case I disassabled the
entire system and rebuilt it again cleaning dust and ect.

No luck.

Any idea or just a stop to a computer store and buy a new mobo?

Thanks in advanced

 

[philo]

Hello, I recently stepped into this problem with my custom built system.
First my config.
mobo: WinFast K7NCR18D-Pro
Processor: AMD Athlon XP 2100+
Memory: 3 Kingston 256MB PC2100 266MHz 32x64 DDR 184Pin
Videocard: maddog predator MX 440 8X GeForce4
HD: 4 maxtor 160 8MB
Power: Kingwing 350W

OS: Multyboot WIndows 2000pro and Mandrake Linux 9

The problem:

The system has been working perfectly for little more than a year, I only
had to replace a faulty PSU long time ago.
About 3 weeks ago when pushing the power button I didnt hear the bip that
usually is followed by the bios screen and the OS boot up. Holding the
power
button for 5 second restarted the machine, bootup fine either on windows
or
linux.
Few days later the same problem became more relevant, I had to restart
about
4/5 time befor the bip came along and the bios screen.
To make it shorter now the behavior is even worse.
Powe button pushed, fans workin, no hd activity nothing on screen, traying
again for aout 20 30 times I get lucky and I see the cdrom light blinking
and the bios bips and the welcome screen, windows starts booting up, here
I
have to scenarios, the first windows bootup screen the black with the
white
progress bar, at soon as the progress reaches the end I get back screen
and
only the fans are working, I have to restart again, if the progress bar
can
reach the end the next windows screens appear and with the blue progress
bar
reaching the end again everything goes balck, restart (well I have to
restart dozen of time to get to the windows bootup again) and if a get
lucky
and widnows passes the firts 2 booting screens everything works fine until
the next reboot.

What I did to find the culprit:

Unplugged everything, only mobo and processor, no results
Unplugged only the HDs, again nothing
Unplugged video card, memory, cd rom and whatever is unpluggable in many
different order...nothing, still same problem.

I changed the battery and cleared the cmos, nothign again.

Every cables seems to be well plugged and just in case I disassabled the
entire system and rebuilt it again cleaning dust and ect.

No luck.

Any idea or just a stop to a computer store and buy a new mobo?

though it could be a mobo problem
i think i'd try another powersupply first

 

[kony]

Hello, I recently stepped into this problem with my custom built system.
First my config.
mobo: WinFast K7NCR18D-Pro
Processor: AMD Athlon XP 2100+
Memory: 3 Kingston 256MB PC2100 266MHz 32x64 DDR 184Pin
Videocard: maddog predator MX 440 8X GeForce4
HD: 4 maxtor 160 8MB
Power: Kingwing 350W

OS: Multyboot WIndows 2000pro and Mandrake Linux 9

The problem:

The system has been working perfectly for little more than a year, I only
had to replace a faulty PSU long time ago.
About 3 weeks ago when pushing the power button I didnt hear the bip that
usually is followed by the bios screen and the OS boot up. Holding the power
button for 5 second restarted the machine, bootup fine either on windows or
linux.
Few days later the same problem became more relevant, I had to restart about
4/5 time befor the bip came along and the bios screen.
To make it shorter now the behavior is even worse.
Powe button pushed, fans workin, no hd activity nothing on screen, traying
again for aout 20 30 times I get lucky and I see the cdrom light blinking
and the bios bips and the welcome screen, windows starts booting up, here I
have to scenarios, the first windows bootup screen the black with the white
progress bar, at soon as the progress reaches the end I get back screen and
only the fans are working, I have to restart again, if the progress bar can
reach the end the next windows screens appear and with the blue progress bar
reaching the end again everything goes balck, restart (well I have to
restart dozen of time to get to the windows bootup again) and if a get lucky
and widnows passes the firts 2 booting screens everything works fine until
the next reboot.

What I did to find the culprit:

Unplugged everything, only mobo and processor, no results
Unplugged only the HDs, again nothing
Unplugged video card, memory, cd rom and whatever is unpluggable in many
different order...nothing, still same problem.

I changed the battery and cleared the cmos, nothign again.

Every cables seems to be well plugged and just in case I disassabled the
entire system and rebuilt it again cleaning dust and ect.

No luck.

Any idea or just a stop to a computer store and buy a new mobo?

Thanks in advanced

Since the board does intermittently POST and boot to
windows, the bios is intact. You might examine the board
for failed capacitors and reset all cards, cables, memory,
etc.

Otherwise (even though it seems to be suspect all too often)
I question the power supply, because Kingwin makes junk PSU.
Their 450W is poor compared to some 300W, and I'd imagine
their 350W is worse than many 250W. You might disconnect it
from AC for a few minutes and examine the interior,
particularly the capacitors where the wiring harness
exits... often on marginal capacity PSU those caps give out
after a few weeks to months.

You might also try underclocking, 100MHz FSB & Memory, and
possibly a slight CPU voltage reduction too, to see if that
helps any. Take voltage readings with a multimeter if
possible but failing PSU caps may not be revealed with
voltage readings.

 

[Guest]

I checked the PSU and seems to be ok, actually I'm sure because I swapped it
with another one fro a different pc and is working fine, the other PSU from
the other pc didn't solved the probem, so definitely seems to be a mobo
problem, I cannot see any visual problem or deterioration on the mb, I guess
it's time for an upgrade.

Oh well, I should start shopping around.

Thanks guys

 

[Guest]

I think I found the problem.
As I stated on my first post, the ram config was:

Memory: 3 Kingston 256MB PC2100 266MHz 32x64 DDR 184Pin

But I was wrong. After disassebmling everything I was packing the ram into
antistatic bags, my attention dropped on a module saying DDR333!!!
I checked and found that I had 2 PC2700 DDR333 and one PC2100 DDR266. I
don't know how that happend because when I built the system, almost a year
ago I was sure I had 3 DDR333 and I tought was wierd when posting that I got
3 PC2100, but I guess my nephew, that is always around my pc, did a ram
swap!!! Somebody is gonna cry!!! ahah just kidding.
But anyway, I suppose that the memory module messed up the mobo, even after
removing it seems unrecoverable. Is that right?

 

[kony]

I think I found the problem.
As I stated on my first post, the ram config was:
But I was wrong. After disassebmling everything I was packing the ram into
antistatic bags, my attention dropped on a module saying DDR333!!!
I checked and found that I had 2 PC2700 DDR333 and one PC2100 DDR266. I
don't know how that happend because when I built the system, almost a year
ago I was sure I had 3 DDR333 and I tought was wierd when posting that I got
3 PC2100, but I guess my nephew, that is always around my pc, did a ram
swap!!! Somebody is gonna cry!!! ahah just kidding.
But anyway, I suppose that the memory module messed up the mobo, even after
removing it seems unrecoverable. Is that right?

No, installing PC2100 along with PC2700 (that variable
alone) cannot damage a motherboard.