Epia M10000 + PW70a + car startup
I've been reading this forum for some days now and I'm not entirely sure about some things.
Here's what I have now :
-Laptop HD 80Gb
-home built shutdown controller (from design off yahoo groups dashpc - detects acc line going up OR down and thus sends ATX pulse, no more no less)
-Xenarc clone TFT 7inch screen (powered seperately, not on the PW70)
When I hook everything up, I get the known sympthons:
-My 12V line is not regulated (but that's no problem : no 12V devices)
-My PC reboots while starting the car (it is a diesel engine BTW, only restarts when starting, not when pre-heating, car is 2 years old so battery is fine, cranking takes about 2 sec max.)
-Pc runs fine with engine running/not running (but again reboots while starting)
I'm dying to use the standby function of the Eipa, gets up and running in 2 sec, so I put the PC in standby automatically when turning the car off. When I start the engine again however, the PW70a goes safety and resets the PC thus ruining the chance to resume the OS that was in suspend-to-RAM mode.
I've seen the posts about the tank circuits. I'd gladly make one but I'm in doubt about what the correct solution to my problem is. The thing I'd go for is the diode and capacitor circuit (MBR3045/MBR6045 + 22000uF-25V Cap) since it won't be a hassle to buid. I'm not very keen on an extra (small) battery solution, nor about x Farad caps (too big) unless I have no other choice. The winning question off course is : will that solve my problem? I know too little of electronics to assure myself about the good solution. Help?
My car seems to drop to about 10V minimum while cranking (but that's just a simple multimeter value ).
When I would add the tank circuit, would that be responsible for battery drain on itself, next to the PC taking a standby voltage to keep the RAM under power?
Considering that the car is pretty new, I drive it pretty much every day, can I solve this myself? Or do I really have to forget about it all and get an Opus? I just would like to make it work as I have it now.
Thanks for helping out !