| Iwill DK8N
Test Setup
Below are the components used in our test setup.
|
Memory |
OCZ Technology PC3200 512MB EL DDR
ECC Registered x 4 pcs = 2GB |
|
Power Supplies |
A+ GPB 550W SSI 24 + 8 pin PSU
(motherboard only) |
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Generic 500W (HDDs, Video card,
cooling fans, lighting, and other
devices) |
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HDD |
Western Digital WD740GD 74GB Raptor |
|
Cooling |
Thermalright XP-120 and 120mm Cre |
Air 4.8W fan, x 2 |
|
Video Card |
ATI Radeon X800XT - Platinum Edition |
|
Optical Drive |
Plextor PX-716SA |
|
CPUs |
AMD Opteron 242, x 2 |
|
nForce Driver Version |
nForce Unified Driver Pack 5.10 WHQL |
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Some may ask, "how'd you wire up two power
supplies together?" Diagram is below.
As for having different ground potentials, since
these power supplies are plugged into the same AC
circuit, the ground potentials are very small,
sometimes none at all. Voltmeter readings
shows less than 10mV.
Basically, the master PSU energizes the relay
coil, closing the contacts and pulling the PWR_ON
line of the slave PSU to ground. That will
turn on the slave PSU. I suggest using a
low-power relay due to the low current draw and
extended amounts of time that the coil would be
energized, reducing heat related coil failure.
It is important to note that if you decide to remove
the ATX wires and connector from the slave PSU, just
leaving the 4-pin Molex connectors, the PSU may not
power up or regulate properly. Be sure to tie
the 3.3V SENSE and a 3.3V output together, just like
how it normally is on the ATX connector:
MOD YOUR PSU(S) AT YOUR OWN
RISK!
OPENING PSUs WILL VOID YOUR
WARRANTY.
WE ARE NOT RESPONSIBLE FOR ANY
DAMAGE CAUSED TO ANYTHING OR ANYONE.
ALWAYS UNPLUG PSUs BEFORE
MODDING.
ALWAYS TEST FOR SHORTS AND
CONTINUITY AFTER MODDING.
ALWAYS TEST WITH A VOLTMETER
PRIOR TO CONNECTING TO YOUR COMPUTER AND/OR DEVICES.
TRY TESTING YOUR MODDED
CREATIONS ON EXPENDABLE PARTS FIRST.
ALWAYS PLUG YOUR PSUs INTO A
SURGE PROTECTOR, UPS, OR ANY PROTECTED OUTLET.
HAVE A FIRE EXTINGUISHER
HANDY.
IF YOU'RE RELIGIOUS, PRAY!
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