Thread: carnetix P1900 Battery Drain

s3 is going to drain your battery.. electricity is drawn in order to keep ram alive. try hibernate..

Originally Posted by Nomader

s3 is going to drain your battery.. electricity is drawn in order to keep ram alive. try hibernate..

hibernate with S1? or hibernate with S3? Either way electricity is going to be drawn correct?

I just bought a Optimal Yellow Top to replace my stock battery. Hopefully this works....

Originally Posted by Nomader

s3 is going to drain your battery.. electricity is drawn in order to keep ram alive. try hibernate..

Unless you let your car sit for extended periods of time without driving it (we're talking several days) or your battery doesn't take a charge well, standby doesn't draw enough power to fully drain the battery.
The only power that's required to maintain standby is power to the mobo & RAM.

Originally Posted by jumper6888

hibernate with S1? or hibernate with S3? Either way electricity is going to be drawn correct?

Hibernation requires no power draw to maintain the state, as it writes the contents of RAM to a file on the HDD.
Standby does require power to maintain state, as it suspends to RAM. You cut power to RAM, you lose the state and do a cold boot next time.

Like DP said the problem is probably your stock battery, I had the same setup without any power drain problems. My car sat at the airport for a week and started without any problems once I got back and that was with my POS stock battery, but putting that constant strain on a regular battery will defiantly shorten its lifespan.

Originally Posted by DarquePervert

Unless you let your car sit for extended periods of time without driving it (we're talking several days) or your battery doesn't take a charge well, standby doesn't draw enough power to fully drain the battery.
The only power that's required to maintain standby is power to the mobo & RAM.

Sorry for not behing specific but this is my daily driver. Well use to be but since school is out I've only been driving it about 3 times a week.

Originally Posted by DarquePervert

Hibernation requires no power draw to maintain the state, as it writes the contents of RAM to a file on the HDD.
Standby does require power to maintain state, as it suspends to RAM. You cut power to RAM, you lose the state and do a cold boot next time.

Just for future reference. To set up hibernation I will have to set the jumper for the JP1 P1900 to cover the pin 5 only (default) correct?

Originally Posted by Kalt

Like DP said the problem is probably your stock battery, I had the same setup without any power drain problems. My car sat at the airport for a week and started without any problems once I got back and that was with my POS stock battery, but putting that constant strain on a regular battery will defiantly shorten its lifespan.

Thanks, Kalt. I built my Carputer around your suggestions in the aopen review thread. Do you hibernate or do standby?

Ok the new yellow top battery did the trick. Now to my next problem. The computer only goes into standby about half the time. The other times it just restarts when I start my car. Anyone knows why?

Originally Posted by jumper6888

Just for future reference. To set up hibernation I will have to set the jumper for the JP1 P1900 to cover the pin 5 only (default) correct?

No... This is defined in the OS. The PSU simply sends the signal to the motherboard. The OS determines how to handle the signal.

Originally Posted by DarquePervert

No... This is defined in the OS. The PSU simply sends the signal to the motherboard. The OS determines how to handle the signal.

besides under the power option in windows xp i will have to set the jumper on the p1900 correct?

you dont have to set ANY jumpers for this to work

the power supply sends a signal to the mobo, the OS determines then what happens, for instance a laptop, if you press the power button, you can get it to suspend to ram, hibernate, shut down, restart

whatever you have it set to, is what the psu will make it do

in simple terms, the psu just presses the mobo's power button, no jumpers control what the OS does