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David L McMurray
Guest
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 Posted: Sun Dec 11, 2005 4:33 am Post subject: System powers down at beginning of POST |
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I had a system given to me today, an ECS L4S5MG3/GX+(5.0) mobo w/2.66
processor, 512mb DDR333 RAM. Unfortunately, it powers down at the beginning
of the POST. I've removed all the cards, unplugged all the drives power,
reseated the DDR ram in the other slot, and reseated the CPU. The only
other response I've been able to get is one long beep if I leave the RAM
out.It appears to be getting ready to enable the video when it powers down,
about 5 seconds total. Any good troubleshooting ideas?
Thanks,
David |
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Ron Gibson
Guest
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| Posted: Sun Dec 11, 2005 5:32 pm Post subject: Re: System powers down at beginning of POST |
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On Sun, 11 Dec 2005 04:15:10 +0000, David L McMurray wrote:
| Quote: | I had a system given to me today, an ECS L4S5MG3/GX+(5.0) mobo w/2.66
processor, 512mb DDR333 RAM. Unfortunately, it powers down at the beginning
of the POST. I've removed all the cards, unplugged all the drives power,
reseated the DDR ram in the other slot, and reseated the CPU. The only
other response I've been able to get is one long beep if I leave the RAM
out.It appears to be getting ready to enable the video when it powers down,
about 5 seconds total. Any good troubleshooting ideas?
|
Reset your BIOS (Clear CMOS). If you can't find the jumpers to do that
simply remove the battery for about a minute or so. If you can get into
your BIOS reset to the default safe settings.
On a 865PE-A rev 2.0 I was tweaking my dual channel memory setup trying
to maximize memory bandwidth. More or less the same thing happened. I
couldn't even get to the CMOS "Push Delete" screen. Reset it and all is
well now.
If you are not getting any other POST code errors (RAM out will cause
a POST error beep like you got) that's a good sign. It doesn't mean it's
gonna be OK but you still have options. Without a HD connected you will
at least get a screen saying something like "DOS not found" or "System
can't find bootable device".
Also to boot up you need at least a video card (or on board chip), a CPU
and a stick of memory installed. Try swapping those components next if
the reset doesn't do the job. I've had a AGP slot go bad about a year
ago. It was the mobo in this case and I had to replace it.
If after swapping components around you still get nothing the PS or mobo
is bad. |
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Dave
Guest
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| Posted: Tue Dec 13, 2005 2:33 am Post subject: Re: System powers down at beginning of POST |
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Ron Gibson <rsgibson@verizon.net> wrote in
news:pan.2005.12.11.11.50.05.424829@verizon.net:
| Quote: | On Sun, 11 Dec 2005 04:15:10 +0000, David L McMurray wrote:
I had a system given to me today, an ECS L4S5MG3/GX+(5.0) mobo w/2.66
processor, 512mb DDR333 RAM. Unfortunately, it powers down at the
beginning of the POST. I've removed all the cards, unplugged all the
drives power, reseated the DDR ram in the other slot, and reseated
the CPU. The only other response I've been able to get is one long
beep if I leave the RAM out.It appears to be getting ready to enable
the video when it powers down, about 5 seconds total. Any good
troubleshooting ideas?
Reset your BIOS (Clear CMOS). If you can't find the jumpers to do that
simply remove the battery for about a minute or so. If you can get
into your BIOS reset to the default safe settings.
If after swapping components around you still get nothing the PS or
mobo is bad.
Found a compatible power supply out of a Gateway. Same symptoms. But, |
this PS has a "test" button. By holding in this button, I was able to
access the CMOS (had a checksum error) and load the safe defaults. Still
has the same symptom, though. This PS would shut down whenever I released
the test button. Tried to load XP in safe mode, but it never went GUI.I
did boot a Partition Manager clone CD and it worked in GUI. Sounds like
mobo, doesn't it? Since video is onboard, this only leaves the CPU.
Dave |
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khobar
Guest
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| Posted: Tue Dec 13, 2005 8:33 pm Post subject: Re: System powers down at beginning of POST |
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"David L McMurray" <dlmcmurray@bellsouth-NOSPAM.net> wrote in message
news:Xns9728ED008EA0dlmcmurrbellsouthtn@216.77.188.18...
| Quote: | I had a system given to me today, an ECS L4S5MG3/GX+(5.0) mobo w/2.66
processor, 512mb DDR333 RAM. Unfortunately, it powers down at the
beginning
of the POST. I've removed all the cards, unplugged all the drives power,
reseated the DDR ram in the other slot, and reseated the CPU. The only
other response I've been able to get is one long beep if I leave the RAM
out.It appears to be getting ready to enable the video when it powers
down,
about 5 seconds total. Any good troubleshooting ideas?
|
You say you were given a "system" - check the front panel power switch - it
may be stuck/shorted. If you can get the docs (or if it is marked on the
motherboard), unplug the "PWR SW" from the motherboard. Then jumper the
"power switch" pins on the motherboard momentarily and release.
If power comes on and then goes off it may indicate that the "PWR GD" (power
good) signal is not coming up and might indicate a problem with the
motherboard. I suspect the power supply with the test button is simply
internally jumpering +5V to PIN8 of the ATX power connector via a momentary
contact switch.
If power stays on then you may need to replace the switch. In a pinch you
can probably move the RESET switch connector to the PWR SW position on the
motherboard. I just talked my brother-in-law through this exact same
symptom, only he had physically washed his front panel and gotten water
inside. Doh!
Paul Nixon |
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khobar
Guest
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| Posted: Wed Dec 14, 2005 1:33 am Post subject: Re: System powers down at beginning of POST |
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"Dave" <dlmcmurray@bellsouth-NOSPAM.net> wrote in message
news:Xns972BCA72E56Fdlmcmurrbellsouthtn@216.77.188.18...
| Quote: | "khobar" <noone@nowhere.com> wrote in news:8_Fnf.22$tw.13@fed1read02:
"David L McMurray" <dlmcmurray@bellsouth-NOSPAM.net> wrote in message
news:Xns9728ED008EA0dlmcmurrbellsouthtn@216.77.188.18...
I had a system given to me today, an ECS L4S5MG3/GX+(5.0) mobo w/2.66
processor, 512mb DDR333 RAM. Unfortunately, it powers down at the
beginning
of the POST. I've removed all the cards, unplugged all the drives
power, reseated the DDR ram in the other slot, and reseated the CPU.
The only other response I've been able to get is one long beep if I
leave the RAM out.It appears to be getting ready to enable the video
when it powers
down,
about 5 seconds total. Any good troubleshooting ideas?
You say you were given a "system" - check the front panel power switch
- it may be stuck/shorted. If you can get the docs (or if it is marked
on the motherboard), unplug the "PWR SW" from the motherboard. Then
jumper the "power switch" pins on the motherboard momentarily and
release.
If power stays on then you may need to replace the switch. In a pinch
you can probably move the RESET switch connector to the PWR SW
position on the motherboard. I just talked my brother-in-law through
this exact same symptom, only he had physically washed his front panel
and gotten water inside. Doh!
Paul Nixon
Can you see the egg on my face from there?? Turns out the power switch
was stuck. I thought I had disconnected it, but I has misread the pin
numbers. The hardware's running great and I'm reloading XP as I'm typing
now. Thanks for everyone's suggestions.
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Outstanding Dave, I'm glad you're up and running.
Paul Nixon |
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Dave
Guest
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| Posted: Wed Dec 14, 2005 1:33 am Post subject: Re: System powers down at beginning of POST |
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"khobar" <noone@nowhere.com> wrote in news:8_Fnf.22$tw.13@fed1read02:
| Quote: | "David L McMurray" <dlmcmurray@bellsouth-NOSPAM.net> wrote in message
news:Xns9728ED008EA0dlmcmurrbellsouthtn@216.77.188.18...
I had a system given to me today, an ECS L4S5MG3/GX+(5.0) mobo w/2.66
processor, 512mb DDR333 RAM. Unfortunately, it powers down at the
beginning
of the POST. I've removed all the cards, unplugged all the drives
power, reseated the DDR ram in the other slot, and reseated the CPU.
The only other response I've been able to get is one long beep if I
leave the RAM out.It appears to be getting ready to enable the video
when it powers
down,
about 5 seconds total. Any good troubleshooting ideas?
You say you were given a "system" - check the front panel power switch
- it may be stuck/shorted. If you can get the docs (or if it is marked
on the motherboard), unplug the "PWR SW" from the motherboard. Then
jumper the "power switch" pins on the motherboard momentarily and
release.
If power stays on then you may need to replace the switch. In a pinch
you can probably move the RESET switch connector to the PWR SW
position on the motherboard. I just talked my brother-in-law through
this exact same symptom, only he had physically washed his front panel
and gotten water inside. Doh!
Paul Nixon
Can you see the egg on my face from there?? Turns out the power switch |
was stuck. I thought I had disconnected it, but I has misread the pin
numbers. The hardware's running great and I'm reloading XP as I'm typing
now. Thanks for everyone's suggestions.
Dave |
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Ron Gibson
Guest
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| Posted: Wed Dec 14, 2005 4:33 pm Post subject: Re: System powers down at beginning of POST |
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On Tue, 13 Dec 2005 02:30:32 +0000, Dave wrote:
| Quote: | Found a compatible power supply out of a Gateway. Same symptoms. But,
this PS has a "test" button. By holding in this button, I was able to
access the CMOS (had a checksum error) and load the safe defaults. Still
has the same symptom, though. This PS would shut down whenever I released
the test button. Tried to load XP in safe mode, but it never went GUI.I
did boot a Partition Manager clone CD and it worked in GUI. Sounds like
mobo, doesn't it? Since video is onboard, this only leaves the CPU.
|
I see you found an answer. If things ever get really tough and you have
an extra PS lay the mobo on a non-conductor, hook up the PS, and short
the Power On pins for a sec. That's a Draconian measure but it
eliminates all extraneous variables. |
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