Re: A8N-E locking up
- From: milleron <millerdot90@xxxxxxxxxxxxxxx>
- Date: Sat, 07 Jan 2006 05:16:15 GMT
On Sat, 07 Jan 2006 00:16:36 GMT, "Steve Brazelton"
<RES18B8I@xxxxxxxxxxxxxxxxx> wrote:
>> Steve Brazelton wrote:
>>> About 2 months ago I assembled a PC for a friend with the following
>>> components:
>>>
>>> A8N-E
>>> Athlon 64 X2 3800+
>>> 1GB(2x512MB) Corsair VS PC3200 DDR memory.
>>> XFX 6600GT PCI-E video card
>>> NEC 2540A DVD drive
>>> WDC 74 GB Raptor
>>> 250 GB Seagate SATA drive
>>> Cooler Master case
>>> Cooler Master 400W Power Supply
>>> MS PS2 keyboard
>>> Kensington PS2 mouse
>>> Dell 17" LCD monitor.
>>>
>>> About 10 days ago she called me saying that the system had begun locking
>>> up after the second BIOS screen and randomly in winXP. She brought me the
>>> system(sans monitor) and I ran Memtest86 for several passes and the
>>> respective extended hard disk diagnostic utilities. There were no errors.
>>> I then set the system into a 40 second reboot loop in WinXP and ran the
>>> system for 16 hours straight without any errors or lockups. I told her I
>>> didn't find anything wrong with the system and gave it back to her at her
>>> workplace. After running it for a couple hours she called me and said
>>> it was still locking up. She brought it back to work(she lives 50 miles
>>> away and works about 5 miles away) and I picked it up and again ran the
>>> test apps and ran the reboot loop overnight without any errors. I then
>>> took it to her workplace and set it up there. I put it into the XP reboot
>>> loop and told her to let it run until it locked up. Four hours later she
>>> called me and said "Come look". Sure enough the system had locked up. The
>>> second BIOS screen was still on the screen and the cursor was blinking in
>>> the botton left had corner. And it was completely locked up. Except for a
>>> different monitor everything else is the same. What the hell? Site
>>> specific errors?
>>
>> Dear Steve,
>>
>> bizarre.
>>
>> Possibly: (?) the keyboard and/or mouse? You didn't mention if she had
>> brought those in too--if you hooked up different ones, or, didn't use
>> them, perhaps some sort of damaged mouse or keyboard cable? (Hate to
>> admit it, but, my son's pet rat chewed on my mouse cable, which caused all
>> sorts of weirdness....didn't lock PC up, but, got frustrating clicking on
>> things, and having cursor fly around randomly....)
>Thanks for your reply.
>Several different keyboards, mice and monitors have been used.
>>
>> Monitor short? If I read your note correctly, sounds like you set it up
>> at her workplace with a monitor different than the one she uses at
>> home--again, some sort of cable issue? I can't believe how expensive DVI
>> cables can be, so, I assume that they are somewhat complex inside....some
>> sort of cable defect? Causes video card to 'crash', and, from that point
>> on, no video output to give error reading, because video card is
>> 'crashed'? (If that is correct, I am playing lotto tomorrow. Similar
>> odds.)
>All monitors are VGA. The XFX card has two DVI interfaces so I had to use a
>VGA to DVI converter. The converter is currently on my list of things to
>swap out.
>>
>> You eliminated wall power as the problem by duplicating it at her work.
>> Unlikely that a commercial building would have flaky grounds or voltage
>> spikes/surges/dips. And, temperature problems: eliminated by your stress
>> tests.
>>
>> Must be mechanical, i.e. a cable, some connector, (lan cable connection
>> shorting something out? Is she hooking it up correctly? Direct DSL/cable
>> modem connection causing some out of spec voltage that stops boot? Has to
>> be something external to the system you built (awesome, by the way) and, I
>> would eliminate the cables one by one first--and, hook it up to a
>> different monitor at home with the first cable, and, if it happens, use a
>> different cable....
>I disabled networking early on in the process. Today I was finally able to
>exactly use all the same components at her workplace as I used at my place.
>The system ran in a reboot loop for about 4 hours before locking up at the
>second BIOS screen.
If you're positive that the problem is site specific, then I guess
you'd have to try it with a UPS, but that's very far out.
My next guess would be faulty or undervolted RAM (I think the
ValueSelect defaults to 2.5v, and it might want more juice). If it
stops during POST, are you suspicious of a BIOS glitch? Would
reflashing it make sense?
>>
>> Also, wonder if she has it hooked up to a printer? Sounds like she is
>> pretty computer savvy, having such a nice system, but, might be good to
>> check all physical connections....
>No printer has been hooked up since I started testing the system. I am just
>about ready to start swapping the components inside the case. Obviously the
>most baffling aspect of all this is that the system does not lockup when I
>run it at my place.
>>
>> HTH,
>>
>> BC
>
Ron
.
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- Re: A8N-E locking up
- From: BC
- Re: A8N-E locking up
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