Next Generation Emulation banner
1 - 6 of 6 Posts

·
No sir, I don't like it.
Joined
·
5,555 Posts
The reason for the confusion online is because some motherboards pull from the +12V rail (generally the newer boards) and others still pull from the +5V rail.

In short, it depends on your motherboard.

Do you have a voltmeter/multimeter handy?
 

·
No sir, I don't like it.
Joined
·
5,555 Posts
The pic on MSI's site is really crappy, but I can make out a single voltage stabilizer circuit.

It's very likely that this board powers the CPU on the +5V rail.

EDIT: looking even closer, am I seeing a 4-pin molex connector just north of the northbridge chipset? Is it for the power supply?
 

·
No sir, I don't like it.
Joined
·
5,555 Posts
USB Devices only pull from from +5Vsb right? Because there will be many USB devices connected.

I'd also have to consider how of the +5v the mobo may steal.
Correct, but the USB spec limits them to drawing 0.5A per connected device. From my experience, most USB devices use much less than the maximum.
 

·
No sir, I don't like it.
Joined
·
5,555 Posts
3.3V? For an Athlon XP? oO

The last processor to use the 3.3V rail was the first-gen Pentium 3's (Katmai core).
 
1 - 6 of 6 Posts
Top