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  #1  
Old 02-21-2008, 10:25 PM
Grinder
 
Posts: n/a
Default Intermittent Failure to POST

Here's an odd one. I have an Intel D850GB that intermittent fails on
power-up with no video and three beeps. Descriptions of the beep code
identify it as a video, memory, or some other critical failure. (duh)

http://support.intel.com/support/mot...esktop/d850gb/

Here's the weird part. The system will fire up fine, but it will fail
on a restart. If you shutdown the machine, wait 40 seconds or so
(sometimes a few minutes) it will again start up without difficulty.

I've tried:

1) Stripping the system down to minimum components--video card, hard
drive, processor and memory.

2) Cleaned (with contact cleaner) and inspected all card/module edges
and their corresponding sockets.

3) Swapped out the power supply with a known good unit.

4) Swapped out the video card with a known good unit of a different slot
type. (Used an antediluvian PCI card instead of the preferred AGP one.)

5) Popped the processor to look for pin or socket damage. Checked
thermal compound, reseated and regooped the heatsink.

6) Removed the motherboard from the chassis to check for chaff or points
of contacts.

7) Ran MemTest86+ for 24 hours without producing a single memory error.
Prime95 also has ran for 24 hours without an error.

8) Profuse swearing and the illustrative destruction of an adjacent
clock radio.

I've been unable to try different memory, as they are RIMM type, and I
don't have any spare modules.

While the system has been under load, the processor/board temperatures
(as reported by Everest) never exceeds 50C. Putting a box fan on high,
aimed at the motherboard, affects temperatures a bit, but does not alter
the pattern of pre-POST failures.

At times, it seems as if unplugging the power supply from the mains can
reduce the "refactory period," but that might just be coincidence.

Any ideas as to what might be going on here?
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  #2  
Old 02-22-2008, 12:44 AM
Sjouke Burry
 
Posts: n/a
Default Re: Intermittent Failure to POST

Grinder wrote:
> Here's an odd one. I have an Intel D850GB that intermittent fails on
> power-up with no video and three beeps. Descriptions of the beep code
> identify it as a video, memory, or some other critical failure. (duh)
>


> 8) Profuse swearing and the illustrative destruction of an adjacent
> clock radio.

You should retry number 8 a couple of times.
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  #3  
Old 02-22-2008, 01:25 AM
Grinder
 
Posts: n/a
Default Re: Intermittent Failure to POST

Sjouke Burry wrote:
> Grinder wrote:
>> Here's an odd one. I have an Intel D850GB that intermittent fails on
>> power-up with no video and three beeps. Descriptions of the beep code
>> identify it as a video, memory, or some other critical failure. (duh)
>>

>
>> 8) Profuse swearing and the illustrative destruction of an adjacent
>> clock radio.

> You should retry number 8 a couple of times.


I might as well. The typewriter has been giving me attitude anyhow.
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  #4  
Old 02-23-2008, 10:15 PM
pcbldrNinetyEight
 
Posts: n/a
Default Re: Intermittent Failure to POST

Grinder <grinder@no.spam.maam.com> wrote in
news:gTmvj.44148$yE1.40114@attbi_s21:

> Here's an odd one. I have an Intel D850GB that intermittent fails on
> power-up with no video and three beeps. Descriptions of the beep code
> identify it as a video, memory, or some other critical failure. (duh)
>
> http://support.intel.com/support/mot...esktop/d850gb/
>
> Here's the weird part. The system will fire up fine, but it will fail
> on a restart. If you shutdown the machine, wait 40 seconds or so
> (sometimes a few minutes) it will again start up without difficulty.
>
> I've tried:
>
> 1) Stripping the system down to minimum components--video card, hard
> drive, processor and memory.
>
> 2) Cleaned (with contact cleaner) and inspected all card/module edges
> and their corresponding sockets.
>
> 3) Swapped out the power supply with a known good unit.
>
> 4) Swapped out the video card with a known good unit of a different slot
> type. (Used an antediluvian PCI card instead of the preferred AGP one.)
>
> 5) Popped the processor to look for pin or socket damage. Checked
> thermal compound, reseated and regooped the heatsink.
>
> 6) Removed the motherboard from the chassis to check for chaff or points
> of contacts.
>
> 7) Ran MemTest86+ for 24 hours without producing a single memory error.
> Prime95 also has ran for 24 hours without an error.
>
> 8) Profuse swearing and the illustrative destruction of an adjacent
> clock radio.
>
> I've been unable to try different memory, as they are RIMM type, and I
> don't have any spare modules.
>
> While the system has been under load, the processor/board temperatures
> (as reported by Everest) never exceeds 50C. Putting a box fan on high,
> aimed at the motherboard, affects temperatures a bit, but does not alter
> the pattern of pre-POST failures.
>
> At times, it seems as if unplugging the power supply from the mains can
> reduce the "refactory period," but that might just be coincidence.
>
> Any ideas as to what might be going on here?


Have you examined the MOBO for bad capacitors? This may shed some light on
bad caps: http://www.badcaps.net

--
pcbldrNinetyEight
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  #5  
Old 02-23-2008, 10:31 PM
Grinder
 
Posts: n/a
Default Re: Intermittent Failure to POST

pcbldrNinetyEight wrote:
> Grinder <grinder@no.spam.maam.com> wrote in
> news:gTmvj.44148$yE1.40114@attbi_s21:
>
>> Here's an odd one. I have an Intel D850GB that intermittent fails on
>> power-up with no video and three beeps. Descriptions of the beep code
>> identify it as a video, memory, or some other critical failure. (duh)
>>
>> http://support.intel.com/support/mot...esktop/d850gb/
>>
>> Here's the weird part. The system will fire up fine, but it will fail
>> on a restart. If you shutdown the machine, wait 40 seconds or so
>> (sometimes a few minutes) it will again start up without difficulty.
>>
>> I've tried:
>>
>> 1) Stripping the system down to minimum components--video card, hard
>> drive, processor and memory.
>>
>> 2) Cleaned (with contact cleaner) and inspected all card/module edges
>> and their corresponding sockets.
>>
>> 3) Swapped out the power supply with a known good unit.
>>
>> 4) Swapped out the video card with a known good unit of a different slot
>> type. (Used an antediluvian PCI card instead of the preferred AGP one.)
>>
>> 5) Popped the processor to look for pin or socket damage. Checked
>> thermal compound, reseated and regooped the heatsink.
>>
>> 6) Removed the motherboard from the chassis to check for chaff or points
>> of contacts.
>>
>> 7) Ran MemTest86+ for 24 hours without producing a single memory error.
>> Prime95 also has ran for 24 hours without an error.
>>
>> 8) Profuse swearing and the illustrative destruction of an adjacent
>> clock radio.
>>
>> I've been unable to try different memory, as they are RIMM type, and I
>> don't have any spare modules.
>>
>> While the system has been under load, the processor/board temperatures
>> (as reported by Everest) never exceeds 50C. Putting a box fan on high,
>> aimed at the motherboard, affects temperatures a bit, but does not alter
>> the pattern of pre-POST failures.
>>
>> At times, it seems as if unplugging the power supply from the mains can
>> reduce the "refactory period," but that might just be coincidence.
>>
>> Any ideas as to what might be going on here?

>
> Have you examined the MOBO for bad capacitors? This may shed some light on
> bad caps: http://www.badcaps.net


Yes, sorry, I should have mentioned that. I don't see any that look odd.

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  #6  
Old 02-24-2008, 01:21 AM
pcbldrNinetyEight
 
Posts: n/a
Default Re: Intermittent Failure to POST

Grinder <grinder@no.spam.maam.com> wrote in
news91wj.47007$yE1.13176@attbi_s21:

> pcbldrNinetyEight wrote:
>> Grinder <grinder@no.spam.maam.com> wrote in
>> news:gTmvj.44148$yE1.40114@attbi_s21:
>>
>>> Here's an odd one. I have an Intel D850GB that intermittent fails
>>> on power-up with no video and three beeps. Descriptions of the beep
>>> code identify it as a video, memory, or some other critical failure.
>>> (duh)
>>>
>>> http://support.intel.com/support/mot...esktop/d850gb/
>>>
>>> Here's the weird part. The system will fire up fine, but it will
>>> fail on a restart. If you shutdown the machine, wait 40 seconds or
>>> so (sometimes a few minutes) it will again start up without
>>> difficulty.
>>>
>>> I've tried:
>>>
>>> 1) Stripping the system down to minimum components--video card, hard
>>> drive, processor and memory.
>>>
>>> 2) Cleaned (with contact cleaner) and inspected all card/module
>>> edges and their corresponding sockets.
>>>
>>> 3) Swapped out the power supply with a known good unit.
>>>
>>> 4) Swapped out the video card with a known good unit of a different
>>> slot type. (Used an antediluvian PCI card instead of the preferred
>>> AGP one.)
>>>
>>> 5) Popped the processor to look for pin or socket damage. Checked
>>> thermal compound, reseated and regooped the heatsink.
>>>
>>> 6) Removed the motherboard from the chassis to check for chaff or
>>> points of contacts.
>>>
>>> 7) Ran MemTest86+ for 24 hours without producing a single memory
>>> error.
>>> Prime95 also has ran for 24 hours without an error.
>>>
>>> 8) Profuse swearing and the illustrative destruction of an adjacent
>>> clock radio.
>>>
>>> I've been unable to try different memory, as they are RIMM type, and
>>> I don't have any spare modules.
>>>
>>> While the system has been under load, the processor/board
>>> temperatures (as reported by Everest) never exceeds 50C. Putting a
>>> box fan on high, aimed at the motherboard, affects temperatures a
>>> bit, but does not alter the pattern of pre-POST failures.
>>>
>>> At times, it seems as if unplugging the power supply from the mains
>>> can reduce the "refactory period," but that might just be
>>> coincidence.
>>>
>>> Any ideas as to what might be going on here?

>>
>> Have you examined the MOBO for bad capacitors? This may shed some
>> light on bad caps: http://www.badcaps.net

>
> Yes, sorry, I should have mentioned that. I don't see any that look
> odd.


What about the HD. Is it spinning when the PC fails POST or is it locked
up?

--
pcbldrNinetyEight
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  #7  
Old 02-24-2008, 01:33 AM
Grinder
 
Posts: n/a
Default Re: Intermittent Failure to POST

pcbldrNinetyEight wrote:
> Grinder <grinder@no.spam.maam.com> wrote in
> news91wj.47007$yE1.13176@attbi_s21:
>
>> pcbldrNinetyEight wrote:
>>> Grinder <grinder@no.spam.maam.com> wrote in
>>> news:gTmvj.44148$yE1.40114@attbi_s21:
>>>
>>>> Here's an odd one. I have an Intel D850GB that intermittent fails
>>>> on power-up with no video and three beeps. Descriptions of the beep
>>>> code identify it as a video, memory, or some other critical failure.
>>>> (duh)
>>>>
>>>> http://support.intel.com/support/mot...esktop/d850gb/
>>>>
>>>> Here's the weird part. The system will fire up fine, but it will
>>>> fail on a restart. If you shutdown the machine, wait 40 seconds or
>>>> so (sometimes a few minutes) it will again start up without
>>>> difficulty.
>>>>
>>>> I've tried:
>>>>
>>>> 1) Stripping the system down to minimum components--video card, hard
>>>> drive, processor and memory.
>>>>
>>>> 2) Cleaned (with contact cleaner) and inspected all card/module
>>>> edges and their corresponding sockets.
>>>>
>>>> 3) Swapped out the power supply with a known good unit.
>>>>
>>>> 4) Swapped out the video card with a known good unit of a different
>>>> slot type. (Used an antediluvian PCI card instead of the preferred
>>>> AGP one.)
>>>>
>>>> 5) Popped the processor to look for pin or socket damage. Checked
>>>> thermal compound, reseated and regooped the heatsink.
>>>>
>>>> 6) Removed the motherboard from the chassis to check for chaff or
>>>> points of contacts.
>>>>
>>>> 7) Ran MemTest86+ for 24 hours without producing a single memory
>>>> error.
>>>> Prime95 also has ran for 24 hours without an error.
>>>>
>>>> 8) Profuse swearing and the illustrative destruction of an adjacent
>>>> clock radio.
>>>>
>>>> I've been unable to try different memory, as they are RIMM type, and
>>>> I don't have any spare modules.
>>>>
>>>> While the system has been under load, the processor/board
>>>> temperatures (as reported by Everest) never exceeds 50C. Putting a
>>>> box fan on high, aimed at the motherboard, affects temperatures a
>>>> bit, but does not alter the pattern of pre-POST failures.
>>>>
>>>> At times, it seems as if unplugging the power supply from the mains
>>>> can reduce the "refactory period," but that might just be
>>>> coincidence.
>>>>
>>>> Any ideas as to what might be going on here?
>>> Have you examined the MOBO for bad capacitors? This may shed some
>>> light on bad caps: http://www.badcaps.net

>> Yes, sorry, I should have mentioned that. I don't see any that look
>> odd.

>
> What about the HD. Is it spinning when the PC fails POST or is it locked
> up?


It spins up.
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  #8  
Old 02-26-2008, 02:34 AM
Pat Glenn
 
Posts: n/a
Default Re: Intermittent Failure to POST

Sounds like a bad video card, but I'm not certain. RAM can be sporadic when
it fails. In order to interpret the beep codes properly you need to know the
exact BIOS your board contains. Once you find that out, here's a helpful
resource for interpreting the message. (I've given the Award BIOS page
because that's often used with Intel boards - there are many others
available from this page)

http://www.bioscentral.com/beepcodes/awardbeep.htm

..
"Grinder" <grinder@no.spam.maam.com> wrote in message
news:gTmvj.44148$yE1.40114@attbi_s21...
> Here's an odd one. I have an Intel D850GB that intermittent fails on
> power-up with no video and three beeps. Descriptions of the beep code
> identify it as a video, memory, or some other critical failure. (duh)
>
> http://support.intel.com/support/mot...esktop/d850gb/
>
> Here's the weird part. The system will fire up fine, but it will fail on
> a restart. If you shutdown the machine, wait 40 seconds or so (sometimes
> a few minutes) it will again start up without difficulty.
>
> I've tried:
>
> 1) Stripping the system down to minimum components--video card, hard
> drive, processor and memory.
>
> 2) Cleaned (with contact cleaner) and inspected all card/module edges and
> their corresponding sockets.
>
> 3) Swapped out the power supply with a known good unit.
>
> 4) Swapped out the video card with a known good unit of a different slot
> type. (Used an antediluvian PCI card instead of the preferred AGP one.)
>
> 5) Popped the processor to look for pin or socket damage. Checked thermal
> compound, reseated and regooped the heatsink.
>
> 6) Removed the motherboard from the chassis to check for chaff or points
> of contacts.
>
> 7) Ran MemTest86+ for 24 hours without producing a single memory error.
> Prime95 also has ran for 24 hours without an error.
>
> 8) Profuse swearing and the illustrative destruction of an adjacent clock
> radio.
>
> I've been unable to try different memory, as they are RIMM type, and I
> don't have any spare modules.
>
> While the system has been under load, the processor/board temperatures (as
> reported by Everest) never exceeds 50C. Putting a box fan on high, aimed
> at the motherboard, affects temperatures a bit, but does not alter the
> pattern of pre-POST failures.
>
> At times, it seems as if unplugging the power supply from the mains can
> reduce the "refactory period," but that might just be coincidence.
>
> Any ideas as to what might be going on here?



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  #9  
Old 02-26-2008, 03:26 PM
EdwardATeller
 
Posts: n/a
Default Re: Intermittent Failure to POST

On Feb 25, 9:34 pm, "Pat Glenn" <pgl...@telus.net> wrote:
> Sounds like a bad video card, but I'm not certain. RAM can be sporadic when
> it fails. In order to interpret the beep codes properly you need to know the
> exact BIOS your board contains. Once you find that out, here's a helpful
> resource for interpreting the message. (I've given the Award BIOS page
> because that's often used with Intel boards - there are many others
> available from this page)
>
> http://www.bioscentral.com/beepcodes/awardbeep.htm
>
> ."Grinder" <grin...@no.spam.maam.com> wrote in message
>
> news:gTmvj.44148$yE1.40114@attbi_s21...
>
> > Here's an odd one. I have an Intel D850GB that intermittent fails on
> > power-up with no video and three beeps. Descriptions of the beep code
> > identify it as a video, memory, or some other critical failure. (duh)

>
> >http://support.intel.com/support/mot...esktop/d850gb/

>
> > Here's the weird part. The system will fire up fine, but it will fail on
> > a restart. If you shutdown the machine, wait 40 seconds or so (sometimes
> > a few minutes) it will again start up without difficulty.

>
> > I've tried:

>
> > 1) Stripping the system down to minimum components--video card, hard
> > drive, processor and memory.

>
> > 2) Cleaned (with contact cleaner) and inspected all card/module edges and
> > their corresponding sockets.

>
> > 3) Swapped out the power supply with a known good unit.

>
> > 4) Swapped out the video card with a known good unit of a different slot
> > type. (Used an antediluvian PCI card instead of the preferred AGP one.)

>
> > 5) Popped the processor to look for pin or socket damage. Checked thermal
> > compound, reseated and regooped the heatsink.

>
> > 6) Removed the motherboard from the chassis to check for chaff or points
> > of contacts.

>
> > 7) Ran MemTest86+ for 24 hours without producing a single memory error.
> > Prime95 also has ran for 24 hours without an error.

>
> > 8) Profuse swearing and the illustrative destruction of an adjacent clock
> > radio.

>
> > I've been unable to try different memory, as they are RIMM type, and I
> > don't have any spare modules.

>
> > While the system has been under load, the processor/board temperatures (as
> > reported by Everest) never exceeds 50C. Putting a box fan on high, aimed
> > at the motherboard, affects temperatures a bit, but does not alter the
> > pattern of pre-POST failures.

>
> > At times, it seems as if unplugging the power supply from the mains can
> > reduce the "refactory period," but that might just be coincidence.

>
> > Any ideas as to what might be going on here?


Could the battery be bad?
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  #10  
Old 03-13-2008, 01:43 PM
Grinder
 
Posts: n/a
Default Re: Intermittent Failure to POST

Grinder wrote:
> Here's an odd one. I have an Intel D850GB that intermittent fails on
> power-up with no video and three beeps. Descriptions of the beep code
> identify it as a video, memory, or some other critical failure. (duh)
>
> http://support.intel.com/support/mot...esktop/d850gb/
>
> Here's the weird part. The system will fire up fine, but it will fail
> on a restart. If you shutdown the machine, wait 40 seconds or so
> (sometimes a few minutes) it will again start up without difficulty.
>
> I've tried:
>
> 1) Stripping the system down to minimum components--video card, hard
> drive, processor and memory.
>
> 2) Cleaned (with contact cleaner) and inspected all card/module edges
> and their corresponding sockets.
>
> 3) Swapped out the power supply with a known good unit.
>
> 4) Swapped out the video card with a known good unit of a different slot
> type. (Used an antediluvian PCI card instead of the preferred AGP one.)
>
> 5) Popped the processor to look for pin or socket damage. Checked
> thermal compound, reseated and regooped the heatsink.
>
> 6) Removed the motherboard from the chassis to check for chaff or points
> of contacts.
>
> 7) Ran MemTest86+ for 24 hours without producing a single memory error.
> Prime95 also has ran for 24 hours without an error.
>
> 8) Profuse swearing and the illustrative destruction of an adjacent
> clock radio.
>
> I've been unable to try different memory, as they are RIMM type, and I
> don't have any spare modules.


Just in case anyone is scoring at home: It has turned out to be a bad
memory module. Buying RDRAM sucks.

> While the system has been under load, the processor/board temperatures
> (as reported by Everest) never exceeds 50C. Putting a box fan on high,
> aimed at the motherboard, affects temperatures a bit, but does not alter
> the pattern of pre-POST failures.
>
> At times, it seems as if unplugging the power supply from the mains can
> reduce the "refactory period," but that might just be coincidence.
>
> Any ideas as to what might be going on here?

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