Dell Studio Hybrid (Installed in vehicle, 12v-24v)

**wywywywy** · 08-27-2008, 03:01 PM

I think the 10v is to tell the laptop whether its a "Dell optimised" power supply. I've seen aftermarket 3rd party power supply that come without this pin, and when booting the laptop it will say "it is not a Dell power supply blah blah blah" and let's you carry on.

**Fiberoptic** · 08-27-2008, 03:09 PM

Originally Posted by wywywywy

I think the 10v is to tell the laptop whether its a "Dell optimised" power supply. I've seen aftermarket 3rd party power supply that come without this pin, and when booting the laptop it will say "it is not a Dell power supply blah blah blah" and let's you carry on.

That would be a pain in the a$$ (pun intended) if you were trying to use your backup camera.

**BlueGhost** · 08-27-2008, 03:15 PM

This thing uses a mobile processor and a power brick, I'm willing to bet the power brick is the same one dell uses on laptops. Dell also sells a 65W brick for powering their laptops off DC, I bet it would work with the Studio Hybrid if your using one of the low end processors.

**Fiberoptic** · 08-27-2008, 03:18 PM

Originally Posted by BlueGhost

This thing uses a mobile processor and a power brick, I'm willing to bet the power brick is the same one dell uses on laptops. Dell also sells a 65W brick for powering their laptops off DC, I bet it would work with the Studio Hybrid if your using one of the low end processors.

It is possible that a DC Dell brick might work but it definitely wouldn't be ignition integrated (computer starts up and shuts down with the key). For that you would want to integrate it into a Carnetix product (p1900 or p2140) or another start up and shut down controller.

**wywywywy** · 08-27-2008, 06:06 PM

Originally Posted by Fiberoptic

That would be a pain in the a$$ (pun intended) if you were trying to use your backup camera.

There is an option to tell it to not warn again. I think its in the bios.

**kibble** · 08-27-2008, 08:26 PM

Originally Posted by wywywywy

I think the 10v is to tell the laptop whether its a "Dell optimised" power supply. I've seen aftermarket 3rd party power supply that come without this pin, and when booting the laptop it will say "it is not a Dell power supply blah blah blah" and let's you carry on.

You know what? Now that I think about it, most of the dell laptops we use at work are ordered with the docking station and case and everything. There are a total of three power supplies included with the laptops; Two are 3.somthing amps and the fourth is 4.something. The 4somthing amp one is used for the docking station but will also fit in the laptop. However, if you try to use one of the 3 amp ones in the docking station, you'll get a message saying that the power supply is not the right amperage and it will not let you use the computer, it'll shut it down. I wonder if that's where the middle pin comes in?

**ik632** · 08-27-2008, 08:56 PM

I just had that happen today with my new laptop. There are 2 adapters, a big one and a smaller one. The big one works with the docking station or the laptop but the small one only works with the laptop.

On another note, my wife has one of the little 14" Latitudes for work (I have a 17" Precision) and her charger has the same pinout and voltage but my laptop doesn't even recognize it. Hers works with my larger adapter though. So, I think there are 3 sizes.

**Dan2008** · 08-28-2008, 07:45 AM

There are actually five different AC adapter styles for Dell laptops: round with two sizes, D-shaped with two sizes and a flat connector.

From what I have learned the center pin is "data" and the voltage output on it allows the laptop to identify whether the adapter supplies enough power for the computer. Most 65W adapters apparently send 8VDC to the center pin and 90W adapters send 10VDC to it.

If the center pin is missing the BIOS sends the "Not a Dell adapter" message and if the voltage is too low it sends the "Incorrect adapter" message.

These messages can be disabled in BIOS.

CAVEAT: This information is for Dell laptops. I assume it applies for the Studio Hybrid.

**lanman1** · 08-29-2008, 08:08 AM

FYI, from the posted image, the connector looks to be the same one used on Dell's D series Latitudes. The voltage on them is 19.5v as well. There are a myriad of 12v power supplies available from 3rd parties as this power configuration for Dell has been around for several years(4-5 if memory serves me correct).

**RyanB95** · 09-01-2008, 02:17 PM

Originally Posted by lanman1

FYI, from the posted image, the connector looks to be the same one used on Dell's D series Latitudes. The voltage on them is 19.5v as well. There are a myriad of 12v power supplies available from 3rd parties as this power configuration for Dell has been around for several years(4-5 if memory serves me correct).

Agreed. The power connector on the back of the hybrid looks identical to the one on my Latitude D630 Laptop.

And yes, there are TONS of 3rd party companies that make travel adapters and whatnot.