Wudan wrote:20 sec resume from hibernation shouldn't be too difficult, I'm pretty sure mine takes about that long and I don't use an SSD. Apart from hdd speed, the big factor with hibernate speed is the amount of RAM you have, and honestly, a carpc shouldn't need too much RAM, so just use the smallest amount you can get away with. Also, I tried running Win7 for my carpc for a bit, but ended up going back to WinXP. One of the issues that actually bugged me with Win7 was that when hibernating, the screen just goes blank. You only know hibernation has been completed when the power light goes out. With WinXP, you are given a visual prompt for the progression of hibernation.
I've now got my carpc wired into the car battery so I can switch off the car prior to hibernation being completed, but it's still nice to know that the monitor shows me that hibernation is occuring as I switch the car off. Just something about the screen going blank with no visual feedback that always makes me question if it's successfully entered hibernation.
Also, don't be too worried about the power draw if the car sits unused for a while. A picoPSU on standby should draw only a very small amount of power (<0.5mA). I have mine sitting in the car running off battery, with a USB OBDII cable and also an Arduino UNO board drawing power and it will comfortably start after a day or two of inactivity. If you were really worried, you could always install an aux power battery with dual isolator. Not to mention, if you buy the right type of PSU for the carpc, they can have low voltage auto shutdown detection which if for whatever reason your carpc is left on or starts on it's own when you're not in the vehicle, it will auto shut down the carpc when the low voltage threshold is met (11.2v I think).
Cheers, I'll go for 4GB I think, if I find I can get away with just 2 I'll pull a stick and see how much difference it makes. That's a good point, I'll have to look into putting the power LED somewhere easy to see so I can make sure the computer actually does turn off.
Yeah I'll do the same, but make it a little more complicated. Power will come from the battery directly and turn on with accessories but the screen will have a delay as I know if it flashed different screens while booting it will annoy the hell out of me!
Okay thanks, I'll look at how much power is actually drawn. The car can go a week without being used, then only be used for short trips so my battery gets a lot of abuse as is. The auto shut down would be a very good feature to have!
The screen I'm getting has auto switching for a reversing camera so I can set that up without the computer so that'll probably be next. Did the libertys ever come out with reversing cameras? If so where were they mounted?