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09-12-2009, 09:09 PM
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#1
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Low Bitrate
Join Date: May 2007
Posts: 79
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PC Turns on then off after standby
Weird problem here:
I'll turn the car on, and everything starts up fine. Turn the car off, system goes into standby. Turn it on again (tried a few seconds after to 15 minutes later) and the PC fires up, then shuts off. If I turn on again the PC does a cold boot and stays on. It's like the power gets cut waking up from standby, but why?
D945GCLF2D (Atom 330)
2gb ram
Liliput EBY701
Using an Opus DC-DC 90w
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09-12-2009, 10:38 PM
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#2
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Super Moderator & Wal-Mart Greeter
Join Date: Sep 2003
Location: New Mexico, USA
Posts: 3,392
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Are you sure the PC is powering down? Or is the screen just blanking...
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Quote: Originally Posted by bramlet  I try to search but I usually only find posts where people ask questions and darquepervert tells them to search.
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09-12-2009, 10:45 PM
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#3
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Super Moderator & Wal-Mart Greeter
Join Date: Sep 2003
Location: New Mexico, USA
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Also, have you tried with a standard desktop PSU? Maybe it's the Opus.
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Quote: Originally Posted by bramlet I try to search but I usually only find posts where people ask questions and darquepervert tells them to search.
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09-12-2009, 11:54 PM
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#4
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Low Bitrate
Join Date: May 2007
Posts: 79
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Everything is shutting off, both times. I had the Opus running off a standard PSU inside and once the standby didn't work at all, it went into standby mode, but didn't stay there. After that, everything worked properly. I wonder if the battery is an issue.
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09-13-2009, 12:15 AM
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#5
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Low Bitrate
Join Date: May 2007
Posts: 79
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Hmm, a BIOS update may be needed.
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09-13-2009, 02:04 PM
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#6
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Super Moderator & Wal-Mart Greeter
Join Date: Sep 2003
Location: New Mexico, USA
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Interesting. I've used quite a lot of D945GCLF2(D) mobos without issue, but with M2-ATX PSUs. Where did you find info on the BIOS update, and is it a specific Opus problem? Or just a problem in general...
__________________
Tidder
Try RevFE
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Best Quote EVER!!
Quote: Originally Posted by bramlet I try to search but I usually only find posts where people ask questions and darquepervert tells them to search.
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09-13-2009, 11:31 PM
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#7
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Low Bitrate
Join Date: May 2007
Posts: 79
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Quote: Originally Posted by Tidder Interesting. I've used quite a lot of D945GCLF2(D) mobos without issue, but with M2-ATX PSUs. Where did you find info on the BIOS update, and is it a specific Opus problem? Or just a problem in general...
I was going through the list of fixes in the previous updates and one of them said something along the lines of S3 stability being fixed. I applied the update and it seems to be working so far, but I'm not 100% sure just yet because I ran into another problem with a frayed wire powering the HDD which was crapping out on me. I fixed that but didn't have time to test it so we'll see what tomorrow brings.
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09-14-2009, 12:24 AM
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#8
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Super Moderator & Wal-Mart Greeter
Join Date: Sep 2003
Location: New Mexico, USA
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Awesome! I had no idea about the S3 stability. I'll keep that in mind on new builds.
__________________
Tidder
Try RevFE
The best frontend I've ever used, period.
Best Quote EVER!!
Quote: Originally Posted by bramlet I try to search but I usually only find posts where people ask questions and darquepervert tells them to search.
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09-14-2009, 02:20 PM
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#9
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Low Bitrate
Join Date: May 2007
Posts: 79
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Quote: Originally Posted by Tidder Awesome! I had no idea about the S3 stability. I'll keep that in mind on new builds.
Standby seemed to work the way it was supposed to. I have it set to go into hibernation after an hour, and the car woke up from hibernation this morning meaning the standby didn't crap out. But it looked like RR crashed as I was greeted with a blank desktop and no mouse, but the keyboard was responsive (kind if like if you force close RR). Not sure if there's some connection here or if I'm having some unrelated power issues.
It's a pain to test everything in the car. I should get a spare battery and test everything in the house.
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09-16-2009, 09:20 PM
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#10
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Low Bitrate
Join Date: May 2007
Posts: 79
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It was working for a few days, now it's crapping out. After going into standby all power to the board is being cut. I'm pretty clueless at this point.
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09-16-2009, 10:30 PM
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#11
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Super Moderator & Wal-Mart Greeter
Join Date: Sep 2003
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I have zero experience with the Opus, but when the car power is cut, does it send a signal to the PC to have it shutdown/standby, then wait for a pre-set amount of time before hard cutting power? That's all I can think of other than faulty hardware somewhere else.
__________________
Tidder
Try RevFE
The best frontend I've ever used, period.
Best Quote EVER!!
Quote: Originally Posted by bramlet I try to search but I usually only find posts where people ask questions and darquepervert tells them to search.
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09-17-2009, 09:05 AM
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#12
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Low Bitrate
Join Date: May 2007
Posts: 79
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Ten seconds after the ignition signal is gone it will send a "power butten press" to the computer which is set to enter standby. After 1 hour it will go into hibernate. The Opus board should only cut the power completely from the system if the battery voltage drops under a certain level. So either my battery is suddenly low on charge immediately after I turn the car off, or something else is flakey.
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09-17-2009, 10:18 AM
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#13
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Low Bitrate
Join Date: May 2007
Posts: 79
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I managed to find the manual for my PSU online and it says that the standby power is turned off immediately following shutdown if the jumper is not set. I have the jumper on the pins though. It came off, and I placed it back on but I guess it might be loose? I should just solder the two pins together. Unfortunately I have 8 more hours of work ahead of me before I can take a look!
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09-17-2009, 09:32 PM
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#14
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Low Bitrate
Join Date: May 2007
Posts: 79
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I soldered the two jumper pins together, seems to be working now!
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09-17-2009, 10:06 PM
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#15
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Super Moderator & Wal-Mart Greeter
Join Date: Sep 2003
Location: New Mexico, USA
Posts: 3,392
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Sweet! These PSU manufacturers should use switches instead of jumpers... 
__________________
Tidder
Try RevFE
The best frontend I've ever used, period.
Best Quote EVER!!
Quote: Originally Posted by bramlet I try to search but I usually only find posts where people ask questions and darquepervert tells them to search.
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