Power Supply Amps Question in an MVS cab..

Power Supply Amps Question in an MVS cab..

Does the Amperage matter that's coming out of the power supply..
The new power supply that I bought is +5v 16A, +12v 6A, -5v 05A just like the one below that is recommended at Briggs site..
http://www.hardmvs.com/html/powerSupply.htm Ultimate 150 Watt Power
Supply with External On/Off
http://www.happcontrols.com/powersupplies/80007200.htm
Minus the wire for the external switch thus being just like the Ultimate Power
Supply with On/Off
Switch - 150......... but with the specs of the power supply with the external switch.


My power supply http://img7.photobucket.com/albums/v21/Chris1/ps1.jpg


Basically If I tell someone to buy a new power supply should I take the amperage difference into consideration?
Just what is the proper Amps a MVS cab requires or is safe to run at..?


Today I got a spare power supply made by Mega Star..It has the same plugs/connections as the power supplies in the links so It would plug right into an MVS cab..but I don't know it's ok to use or sell as a replacement.
I notice the Specs are different..
It's a 200 Watt Power Supply..+5v 20A, +12v 8A, -5v 05A and what the heck is -12v 05A
Wattage is another question....What about the Wattage..?

http://img7.photobucket.com/albums/v21/Chris1/031230211442.jpg

Ultimate 150 Watt Power
Supply with External On/Off
http://www.happcontrols.com/powersupplies/80007200.htm
+5v 16A, +12v 6A, -5v 05A
UL and CSA recognized
External On/Off cable with 4-pin Molex
Dual AC input 115vac/230vac, selectable by switch
Low ripple and noise, EMI filter
Overload and short circuit protection
Built in DC fan and power switch
Metal case - XT size
Dimensions 8.74"L x 5.51"W x 4.65"H
Supplied with 8' long SJT power cord
Meets AMOA standard
1 year warranty

Ultimate Power
Supply with On/Off
Switch - 150 Watt

http://www.happcontrols.com/powersupplies/80001500.htm
+5v 15A, +12v 5.5A, -5v 1A
UL recognized, CSA
Over voltage protection on +5v, a Happ exclusive
Designed specifically for the coin-op industry
Smoother start-up
Better heat dissipation: three separate heat sinks
Dual AC input 115vac/230vac, selectable by switch
Low ripple and noise, EMI filter
Complete overload and short circuit protection
Built in DC fan and power switch
Metal case - XT size
Requires minimum 1.5 amp load on +5 for proper operation
Supplied with 6' long SJT power cord
http://www.happcontrols.com/powersupplies/80001500.htm


Then I have the other power supplies that I believe are from computers ..The specs on them are different.
I've read here that they could be used as a replacement but just how close to the Specs +5v 16A, +12v 6A, -5v 05A should I stay close to..
These Computer power supplies could be very different in amperage/wattage.

It's a 200 Watt Power Supply..+5v 20A, +12v 8A, -5v 05A and what the heck is -12v 05A


.................................................................

(Yes..I'm anal about this stuff..But I never like to steer someone wrong with wrong information)

5 volts at 10 amps and 12 volts at 2 amps would be more than sufficient for any mvs board. Infact the actual current draw would be half that at most.
16-20 amps is way over the top.(no harm in that)
Most dedicated arcade psus +5 volts Ive come across are rated at 15 Amps.

ttooddddyy said:

5 volts at 10 amps and 12 volts at 2 amps would be more than sufficient for any mvs board. Infact the actual current draw would be half that at most.
16-20 amps is way over the top.(no harm in that)
Most dedicated arcade psus +5 volts Ive come across are rated at 15 Amps.

Click to expand...

So using the power supply that I'm using .. +5v 16A, +12v 6A, -5v 05A ...

Is it ok..?


I think you said yes in your reply,but am I pushing the limit with this PS.


Also ..

Would it be safe to plug this one into my cab..to see if it works..then offer it as a replacement..?..for an MVS cab..

Its not a case of pushing the limit, you could use a 5 volt 100 amp supply. It would work perfectly well. Depending on the type of mvs board used your never going to draw more than say 5-6 amps max (unless there is a fault condition causing excessive current draw)
What Im saying is that anything much over 10amps is unecessary, so its academic wheather its 16 or 20 amps or 100 amps for that matter- your never going to draw more than say 5A with a six slot.
The PSU will just be larger and cost more as a rule.

ttooddddyy said:

Its not a case of pushing the limit, you could use a 5 volt 100 amp supply. It would work perfectly well. Depending on the type of mvs board used your never going to draw more than say 5-6 amps max (unless there is a fault condition causing excessive current draw)
What Im saying is that anything much over 10amps is unecessary, so its academic wheather its 16 or 20 amps or 100 amps for that matter- your never going to draw more than say 5A with a six slot.
The PSU will just be larger and cost more as a rule.

Click to expand...

Sweet..
Thank you ttooddddyy...