Overclock.net › Forums › Components › Power Supplies › BTX PSU Question
New Posts  All Forums:Forum Nav:

BTX PSU Question

post #1 of 8
Thread Starter 
I pulled out a BTX 1000K out of my old Dell XPS 710.
I believe it is BTX from what I was reading.
Is a BTX PSU compatible with ATX mobos?
post #2 of 8
Should be electrically the same, but check and make sure the pinout on the main ATX cable is the same.
post #3 of 8
Thread Starter 
Ok.
If I take a picture of it, would you determine if it is compatible?
post #4 of 8
ATX
Pin Name Color Description
1 3.3V Orange +3.3 VDC
2 3.3V Orange +3.3 VDC
3 COM Black Ground
4 5V Red +5 VDC
5 COM Black Ground
6 5V Red +5 VDC
7 COM Black Ground
8 PWR_OK Gray Power Ok is a status signal generated by the power supply to notify the computer that the DC operating voltages are within the ranges required for proper computer operation (+5 VDC when power is Ok)
9 5VSB Purple +5 VDC Standby Voltage (max 10mA)
10 12V Yellow +12 VDC
11 12V Yellow +12 VDC
12 3.3V Orange +3.3 VDC
13 3.3V Orange +3.3 VDC
14 -12V Blue -12 VDC
15 COM Black Ground
16 /PS_ON Green Power Supply On (active low). Short this pin to GND to switch power supply ON, disconnect from GND to switch OFF.
17 COM Black Ground
18 COM Black Ground
19 COM Black Ground
20 -5V White -5 VDC (this is optional on newer ATX-2 supplies, it is for use with older AT class expansion cards and can be omitted on newer units)
21 +5V Red +5 VDC
22 +5V Red +5 VDC
23 +5V Red +5 VDC
24 COM Black Ground

BTX
Pin Signal Description
1 +3.3 VDC
2 +3.3 VDC
3 COM
4 +5 VDC
5 COM
6 +5 VDC
7 COM
8 PWR_OK Power good - indicate that VDC voltages are in range.
9 +5 VSB Standby voltage
10 +12 VDC
11 +12 VDC
12 +3.3 VDC
13 +3.3 VDC
14 -12 VDC
15 COM
16 PS_ON# Active low. TTL compatible (0.1-0.8V low; 2.0 high?). When low - DC outputs are enabled. When high - power supply should not deliver DC current.
17 COM
18 COM
19 COM
20 N/C
21 +5 VDC
22 +5 VDC
23 +5 VDC
24 COM

http://pinouts.ru/pin_Power.shtml
post #5 of 8
Thread Starter 
I didn't really understand that...
But either way, here are pics.
The PSU has 2 ATX connectors.
24
and a 20.
post #6 of 8
That's kind of stupid.

Use the 24, should be just fine.
post #7 of 8
Thread Starter 
Alright thanks..
I'm not sure why it has 2...
I mean, on the XPS 710 mobo, both were connected...Is that normal?
post #8 of 8
the ATX and BTX connectors are the same so it should work as the people who make the specs are stupid enough to make 2 connectors the same if they aren't compatible
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Power Supplies
Overclock.net › Forums › Components › Power Supplies › BTX PSU Question