PS2 without power supply?

[pythonjosh]

Anybody ever tried to run a ps2 with direct 12v connection rather than using the power supply?
Reason is, I'm working on a project to put a ps2 in my car.
I found somewhere that the power supply leads are +12v,+12v,-12v,-12v.
And the PS2 draws 8amps (so I've read). So far I have 2 12v regulators (5amp/each) running parallel for a max of 10amp draw.
Going to have an inline switch/relay so it is not in standby when the car is off.
Also using a 2.5" IDE hard drive so it can take some turbulence.
I'm going to use a crappy V4 mobo to test before hooking up the V9.

To verify the power needs of the mobo I'm gonna power up the PSU and hit it with the multimeter.

Any tips? Otherwise I'll let you know what I find out. Gonna have this thing done this weekend!
Pics will be coming too.

[SP193]

Anybody ever tried to run a ps2 with direct 12v connection rather than using the power supply?
Reason is, I'm working on a project to put a ps2 in my car.
I found somewhere that the power supply leads are +12v,+12v,-12v,-12v.
And the PS2 draws 8amps (so I've read). So far I have 2 12v regulators (5amp/each) running parallel for a max of 10amp draw.
Going to have an inline switch/relay so it is not in standby when the car is off.
Also using a 2.5" IDE hard drive so it can take some turbulence.
I'm going to use a crappy V4 mobo to test before hooking up the V9.

To verify the power needs of the mobo I'm gonna power up the PSU and hit it with the multimeter.

Any tips? Otherwise I'll let you know what I find out. Gonna have this thing done this weekend!
Pics will be coming too.

Someone has tried something similar before - but it was for a slimline PS2.

But since you say that the mainboard has a high current draw, you might want want to make sure that the power regulators receive sufficient cooling, and don't touch anything flammable.

Aren't 2.5-in drives more fragile, compared to 3.5-in drives?
Not to mention that it'll ratter about in the expansion bay?

[pythonjosh]

Laptop hd's are more durable than the 3.5's because laptops have to endure much more turbulence and shaking than desktops do.
I've been reading some other threads with SATA-IDE converters so I may end up going that route, although I really don't need too many gb's.
I'm going to test with a v4 mobo for a week just to make sure I'm assuming the electrical values right.
I'm doing a custom mounting because the ps2 case doesn't fit where I'm putting it in the car.
I have barely 2" of vertical space, maybe really 1.5". Haven't measured.
At some point I will also be installing a HiDef projector in the trunk so I may benefit from just soldering the AV cable wires directly to the board.
The composite will go the Pioneer tv head unit. RGB's will be run to the trunk.
Or maybe I should just install another ps2 in the trunk whenever I get around to affording a HD projector.

[rilski]

yeah i had this done before. i've used a PC ATX psu to run a 110v console. GND/12v connections are only needed. no problems whatsoever. if the PSU runs into a problem, just simply troubleshoot the PSU or better, replace it.

[pythonjosh]

Yea wiring it to the ps2 with just wires ran thru a voltage regulator didn't work and also made the ps2 not work any more also.
I have plenty of them tho.
I ordered a 140w 12v DC-DC power supply from mp3car.com to use for the ps2.
I will post up how it does.

[l_oliveira]

lol @ the "crappy v4 mobo" comment.

The V4 is much better than the V9. The only thing the V9 can do the v4 doesn't is have a built in IR sensor capable of power on/off, reset and eject the tray. (V9/V10 suffers of chronic cost cuts on plastics material and motherboard design. That's why I am saying the V4 is better than the V9)

Anyway, since you're hooking it to 12v, you can simply hook the PS2 straight to the car battery with no fear of having problems. You only need to consider filtering the supply with inductors so the PS2 doesn't send any noises through the power rail to your car sound system.

No need to spend a penny with DC - DC converters since the PS2 "phat" is already 12v. But a word of warning for others who might read this:

Really early PS2s (old japanese units) and all units of the SLIM range do have 8.5v power supplies.

DO NOT over voltage them as it can be harmful to the DVD drive circuitry.

[pythonjosh]

Yea I don't really know the pros and cons of each version, except feature wise. I collect every v9 I can find now.
Just because of the IR receiver. I've bought 3 v9's in the past 2 weeks. Got one more Logitech Cordless Action, another NA, another DVD remote, and like 4 more regular dualshock2's.
When a car is running it is usually around 14-14.5v because of the alternator. This voltage may not be very well tolerated by motherboard circuitry.

And I've removed the dvd drive. I haven't found much use for those since HDL, uLE, and SMS came out.

DC-DC converter should be here soon, it'll be a more constant supply rather than the voltages that can change throughout the acceleration cycles of the car.

[l_oliveira]

Well, considering the use you're giving them, might be a good idea use SLIMs too (7000x) of the model that can have HDDs attached to them.
You won't need to find network adapters for them as they contain the PATA interface onboard.


And now that you explained I got the point of having a DC to DC converter. Thanks for your patience on explaining !

[pythonjosh]

There's a mod on here for a sata adapter instead of pata on the 7000x boards too.
It does make a lot more sense, even with the 1tb maximum, but I'm sitting on like 10 fatty ps2's, no slims.
I haven't even searched yet, but I know there are v18 or v19 pstwo's out now, and only the first 2 versions of the slim can have this sata/pata mod.
That could be rather difficult to locate considering any other pstwo version would be useless to me.

[SP193]

There's a mod on here for a sata adapter instead of pata on the 7000x boards too.
It does make a lot more sense, even with the 1tb maximum, but I'm sitting on like 10 fatty ps2's, no slims.
I haven't even searched yet, but I know there are v18 or v19 pstwo's out now, and only the first 2 versions of the slim can have this sata/pata mod.
That could be rather difficult to locate considering any other pstwo version would be useless to me.

There was a mod for the new slimlines that lack the IDE interface - HDPro.
Some of the people here don't like this product (Search around, and you'll find out why), so you won't get much information about it here.

But it can allow you to connect a ATA disk to a newer slimline.
I don't know which models of PS2s are supported by it, but I remember that the SCPH-75000 and SCPH-77000 series of consoles were supported.