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Thread: Commell LV-671..

  1. #301
    Maximum Bitrate MobiTekLink's Avatar
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    Quote Originally Posted by MikeH
    Eddie,

    The P1900 shuts down the fan in Standby mode. It should not be spinning. If you have jumpered JP1 Pins 5-6, when the ignition goes low (0V) the p1900 issues an ACPI pulse to your mobo. If WinXP is properly configured, your system will enter Standby and the P1900 will continue to supply +19V. However, to conserve power (ie not drain the battery) the fan is shut down. In order to prevent system damage the P1900 monitors the current drain of the system. If it is more than about 1 amps, the P1900 will abruptly shut down.

    If the P1900 is in standby mode, the fan will not spin. Are you sure you ignition line is working properly?
    Mike,

    I should've specified of the fan that was on, it was the mobo's, sorry.
    I think the problem was w/ my battery, today I tested the unit under 100 today, and after approx 5hrs the unit shutdown. The crank was slow so I figured the P1900 shutdown due to low battery.
    I'm testing the unit in Hybernation now, I would really prefer standby but I guess it's not dependable.
    My wish is that soon there will be a (dependable) serial interface w/ your unit, I don't know if you've given it much though or of the logistics of it, but I think if the unit would be able to standby for a couple of hours and then hybernate if time goes beyond that or if voltage drops below a certain level, all controlled in WinXP, it'd give us a much better set of options. Just a suggestion, I'd like to know what you think of it.
    I also removed the 10" monitor that I had attached to the P1900, this I guess helps in this aspect. I think for me the best setup is gonna be to put an extra battery before the PSU to give me extra time in standby, I really much rather have it that way since I don't like the constant rebooting.
    I'd like to find out if someone has tested the wattage drain of the LV671 under different conditions (standby, hybernate, on) this would help MikeH in maybe knowing how to help us better.
    08 Lincoln Navigator www.mobiteklink.com

  2. #302
    Maximum Bitrate MobiTekLink's Avatar
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    Mo' Problems,

    The constant rebooting (and hard shutdowns) of my system is causing the computer to give me video problems. Once in a while it boots and there is no display. I have to reboot, safe mode, uninstall the video drivers, reboot, reinstall video drivers, and reboot again. A 10-15 mins pain in the arse!
    My temp solution is to do a disk check, and defrag, I think my hard drive has some bad sectors in it since after I do that the problem stops.
    I recently installed the newest video drivers from Intel, and the problem persists.
    That's why I keep suggesting the better power management in our LV671, the standby solution is not feasible due to the battery drain, the hybernation is not either due to the constant rebooting (and long waiting time) so we nn to come up w/ a good system that will cover these issues.
    Has anyone else had these video issues??? If so, what solution/suggestion would you have?
    08 Lincoln Navigator www.mobiteklink.com

  3. #303
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    i get the same video probs, and uninstalling the display driver fixes it, however my system isnt suffering from any failures.

    mine seems to happen if my lilliput is disconnected from my lv671 during the bootup, basically if ive removed the screen for the night, and put my key in the ignition, my lv671 boots before i can plug the lilliput cable back in and behold,,, no video.... then i have to start in in safe mode, remove the intel driver and reboot, and all is fine, buts its a right pain in the ***.

    i have my system setup to do a complete shutdown, with a cut down xp, 7200rpm laptop hdd and centrino 1.7 and it boots in under 10 seconds.

    if anyone has a fix for this i would appreciate it, ive tried to trawl through as much of this thread as possible, but its huge !!! :-)

    so.... anyone worked round this problem ?

    satty

  4. #304
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    Quote Originally Posted by satmanuk
    lv671 during the bootup, basically if ive removed the screen for the night, and put my key in the ignition, my lv671 boots before i can plug the lilliput cable back in and behold,,, no video.... then i have to start in in safe mode, remove the intel driver and reboot, and all is fine, buts its a right pain in the ***.
    Well, this might sound like a bios issue. I noticed that in the bios there's a setting for video that chooses from lcd, crt, etc. I tried it once and I set it to LCD and it wouldn't display video until XP came in, I had to reset the CMOS to get it back. I'm gonna try the other settings.
    I also noticed that it boots fine when on VGA mode, so I'm wondering if it might be that the Intel driver/XP is changing the resolution/refresh rate to one that the monitor cant' handle. I think there's a setting in XP that you can restrict to only use one VGA mode.

    Quote Originally Posted by satmanuk
    i have my system setup to do a complete shutdown, with a cut down xp, 7200rpm laptop hdd and centrino 1.7 and it boots in under 10 seconds.

    satty
    Although 10 secs is a great boot up time, when in a car, compared to standby it SUCS! Let's face it.
    What I'm gonna do for now, is to have it in standby if I'm not planning to leave the car overnight, and if I am leaving it overnight, then I'll just unplug the unit (since I have a quick connector).
    Even with the hybernation enabled, since I have the unit w/ constant on. I guess there is still a big drain on the system, the keyboard light is still on so the 5V+ rail is on.<b> Today my battery was drained, so I needed a boost.</b>
    Another issue with the system coming back from hybernation is that some of the programs don't work. I use VZ access manager (verizon) for internet and it doesnt connect sometimes. Also, the USB Garmin GPS receiver sometimes has to be rebooted.
    08 Lincoln Navigator www.mobiteklink.com

  5. #305
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    @ MobiTekLink

    yes, ive tried the bios options too... i either run it in crt mode, or auto, since CRT mode doesnt display video until windows initialises the driver, where as auto will display bios post test, which is handy...

    i agree it seems to be a driver issue, since its fine in VGA mode, i could allways leave windows in vga mode, at reduced performance, or use a 3rd party app to stop the intel driver doing strange things when it doesnt get the sync properly from the lilliput on startup... but i'd rather fix the problem than covering up the effect : -)

    with regards to standby, i dont use it, i have an audi A6 quattro turbo deisel, so i need every bit of battery cranking power : -), even overnight in standby can drain a deisel battery just enough to cause a struggle to start on a cold morning, anyways lead acid car batteries arent designed for continuos low current draw with harsh cranking each morning, it would cut the battery's life by 3/4.

    coupled with the issues of some programs, especially USB GPS not allways resuming from standby properly, i opted for a clean shutdown and startup...

    with this setup there isnt any speed different between hibernation and cold boot, so cold boot it is.

    oh another anoying fault on hibernation is when a hibernation file becomes corrupt, unlike other windows boot delays the option for cleaning the hibernation file and resuming boot, doesnt have a timeout, so a keyboard input is needed to allow the boot to proceed.... : -(

    ive also had this fault with the commell lv-671A model, the one with mini AGP graphics(ATI M card), so this strange behavior might not be limited to the onboard intel card.

    satty

  6. #306
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    Quote Originally Posted by satmanuk
    @ MobiTekLink

    yes, ive tried the bios options too... i either run it in crt mode, or auto, fine in VGA mode, i could allways leave windows in vga mode, at reduced performance, or use a 3rd party app to stop the intel driver doing strange things when it doesnt get the sync properly from the lilliput on startup.
    So, not an improvement w/ the bios, right? That saves me time!

    Quote Originally Posted by satmanuk
    .. but i'd rather fix the problem than covering up the effect : -)
    I like your spirit! That's a me too.
    Quote Originally Posted by satmanuk

    with regards to standby, i dont use it, i have an audi A6 quattro turbo deisel, so i need every bit of battery cranking power
    with this setup there isnt any speed different between hibernation and cold boot, so cold boot it is.

    oh another anoying fault on hibernation is when a hibernation file becomes corrupt, unlike other windows boot delays the option for cleaning the hibernation file and resuming boot, doesnt have a timeout, so a keyboard input is needed to allow the boot to proceed.... : -(

    ive also had this fault with the commell lv-671A model, the one with mini AGP graphics(ATI M card), so this strange behavior might not be limited to the onboard intel card.

    satty
    That sucks!!!
    What do you think of a second battery?, I think that it would be a good option, especially since most of the problems with USB hardware are from hybernation not standby. Have you though of that?
    I wonder how many hours would a battery like that hold the mobo on standby for?
    I'd certainly like to know how to optimize this important issue, I think that although this is the best mobo/cpu combo for a carpc, this video issue puts a big dent on it.
    What we nn is a product that will combine certain things, like an aux battery, a power management system, and a voltage regulator like the p1900; all in one ez compact package.
    Unfortunately, for me the power and the video issues are correlated, so I nn to fix the power issue before anythign.
    08 Lincoln Navigator www.mobiteklink.com

  7. #307
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    i'm sure it wouldnt be too hard to put something together for use with most boards however the P1900 is a 19V output for the 671, that would put a bit extra Ah drain on a 12V backup battery, i spose you would need to know the exact current draw of your setup in standby, then choose a nice small sealed 12V cell. probably 4 - 8Ah.
    a backup battery of this size wouldnt last many minutes under system load, so you would need an inteligent system of turning on / off the backup cell when the board was powered up or in standby respectively of course : -)
    and then theres charging the cell efficiently not to cause damage..

    another probably better option would be to build a 19V cell to put in parallel between the P1900 and the board... and some diodes to stop the cell feeding back into the P1900, the 19V cell could trickle charge from the P1900 output when its on, and the board could draw it 19V standby current from the cell when the P1900 is off...

    or maybe wait for someone to make one to buy : -)

    satty

  8. #308
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    i think ive narrowed down this display prob...

    initially i was wrong, ive had the carpc on the table all evening with the lilliput, turning it off and on in different combinations,,

    it actually happens if the lilliput is disconnected before windows has time to shutdown. so it must be when windows is writing configuration data back to the system on shutdown without the lilliput connected. then after a reboot its doing something funky with the res.

    Mobi can you test this theory on your setup ? pull the quick connector, then power down the board : -) see what happens, make sure your keyboard is handy.... :-)

  9. #309
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    Quote Originally Posted by satmanuk
    i think ive narrowed down this display prob...

    initially i was wrong, ive had the carpc on the table all evening with the lilliput, turning it off and on in different combinations,,

    it actually happens if the lilliput is disconnected before windows has time to shutdown. so it must be when windows is writing configuration data back to the system on shutdown without the lilliput connected. then after a reboot its doing something funky with the res.
    I actually don't have a Lilliput, so I'm not sure the same thing happens to me, my monitor is directly plugged into the battery. I can't find any relation, in my case, that would relate the sequence of power w/ the video issues that we have . My isse is definitely with the drivers or with the hard drive.
    Quote Originally Posted by satmanuk
    Mobi can you test this theory on your setup ? pull the quick connector, then power down the board : -) see what happens, make sure your keyboard is handy.... :-)
    I'm not sure exactly how u want me to do this, my setup is like this:
    1. Monitor, is directly connected to battery.
    2. CPU, P1900 setup in "always on" JP1 5-6 jumpered, quick connect plug to manually shutdown system when not needed.
    Let me know exactly what u want me to test, I'll be happy to do it.
    08 Lincoln Navigator www.mobiteklink.com

  10. #310
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    Quote Originally Posted by satmanuk
    i think ive narrowed down this display prob...
    so it must be when windows is writing configuration data back to the system on shutdown without the lilliput connected. then after a reboot its doing something funky with the res.
    Have you tried to restrict the displays in advanced/displays settings???
    Although I remember once I actually used my home monitor to check if the video had changed settings. So I don't think the lv671 is trying another display setting/resolution/refresh rate.
    I don't freakin' know!!!!
    08 Lincoln Navigator www.mobiteklink.com

  11. #311
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    Quote Originally Posted by satmanuk
    i'm sure it wouldnt be too hard to put something together for use with most boards however the P1900 is a 19V output for the 671, that would put a bit extra Ah drain on a 12V backup battery, i spose you would need to know the exact current draw of your setup in standby, then choose a nice small sealed 12V cell. probably 4 - 8Ah.
    a backup battery of this size wouldnt last many minutes under system load, so you would need an inteligent system of turning on / off the backup cell when the board was powered up or in standby respectively of course : -)
    and then theres charging the cell efficiently not to cause damage..

    another probably better option would be to build a 19V cell to put in parallel between the P1900 and the board... and some diodes to stop the cell feeding back into the P1900, the 19V cell could trickle charge from the P1900 output when its on, and the board could draw it 19V standby current from the cell when the P1900 is off...

    or maybe wait for someone to make one to buy : -)

    satty
    What if the battery is isolated with an isolator for a dual battery setup,,,, it'd feed the p1900 with 12v, We'd nn an intelligent power management system like that of a laptop. In this case there would be alarms when the battery falls below a certain level,, first standby, then hybernate, then complete power cutoff. I'm not sure how far off or feasible is a system like such but I'm convinced it'd be the perfect setup.
    The advantage would be that the sec. battery would only nn to power the LV during standby/hybernate which I think would be good for quite a long time.
    I said it before in this forum, but noone answered,so maybe I'm crazy for thinking things like that
    08 Lincoln Navigator www.mobiteklink.com

  12. #312
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    mobi... yeh ive tried another monitor,, it works fine on a 17" lcd after the 7" wont pick up the display, ive done that a few times to change the settings back, with regards to forcing the display settings.. its that damn intel driver no matter what i set... once the system shuts down without the lilliput connected... gone : -(

  13. #313
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    I have an old pci graphics card, if this continues I'm gonna switch to that one. I'm not using the PCI slot anyway.
    You did say that the same issue happened w/ an AGP card, right??
    I guessed we're out of options for now.
    08 Lincoln Navigator www.mobiteklink.com

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    I'm in the process of drawing up my board in Solid Works, but before I continue I thought I'd better ask if anyone have seen a 3D drawing of the LV671 ?

    /M

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    Quote Originally Posted by Maximus
    I'm in the process of drawing up my board in Solid Works, but before I continue I thought I'd better ask if anyone have seen a 3D drawing of the LV671 ?

    /M
    No, I haven't, but here's AutoCAD DXF drawings of the LV-671 silkscreen of the top and bottom of the board.

    The dimensions are fairly accurate, just set the units to 1mm per unit.

    http://www.bwi.com/scripts/site/show...ent.php/id/696 (671dxf.zip)

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