A simple high quality 12Volt 100Amp Power Supply- Part1 - Page 84 - RC Groups
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Mar 01, 2012, 09:22 AM
xandrios's Avatar
Yeah most likely. But it would require much more work. A laminar air flow through the case in either direction should be good enough.
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Mar 01, 2012, 05:14 PM
Registered User
s.nase's Avatar
The heat sinks are designed for different flow direction. With the wrong flow direction, it's no wonder that hotspots result in the case. Likewise, the position of the temperature sensor to be calibrated. An air box on the other hand, there certainly less expensive and more effective than the heat sink on the housing. Or how about a cross-flow fan.
Mar 02, 2012, 07:47 AM
xandrios's Avatar
Yeah. Sounds like a good way to optimize airflow through the case.
Old Mar 02, 2012, 08:57 PM
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Mar 02, 2012, 10:23 PM
Registered User
Originally Posted by timoustis
Super Solar Charger Battery For Laptops (Battery Capacity:3.7V 20000 mAh ) SNB2000A
Mar 03, 2012, 08:39 AM
"cheap, small, lightweight"



I have a few power supplies from a Compaq/HP SAN Array.

Part Numbers are:

The only thing I could find out about it is that it is a 499W supply.


Thanks to xandrios we now finally know how to start this PSU
(and keep it running for more than 7 minutes).

- connect Pin 16 upside to ground
- connect Pin 22 upside to ground
- connect Pin 24 downside to ground
- connect Pin 18 upside and Pin 19 upside to each other

Pins 1-13 upside are 5V
Pins 25-36 downside are 5V Return/ground

Pins 23-36 upside are 12V
Pins 1-13 (or 17) downside are 12V Return/ground
Last edited by Rodizio; May 02, 2012 at 05:30 PM. Reason: found out how to start the PSU
Mar 03, 2012, 01:58 PM
xandrios's Avatar
Try top pin 19 and bottom pin 24 to ground through a 500 ohm resistor for each.
If that doesn't work try also adding top pin 15 to ground through a 500 ohm resistor.

The slightly heavier trace from pin 19 usually indicates a power ok or current share signal but the impedance and voltage measurements say otherwise.

To bad you don't have the telltale short pin.

Good luck.
Mar 03, 2012, 02:23 PM
"cheap, small, lightweight"
Hi Xandrios, thanks for your reply.

I have now tried:

- Pin 19 upside and Pin 24 downside to Ground
- Pin 15 upside and Pin 24 downside to Ground
- Pin 15 upside and Pin 19 upside and Pin 24 downside to Ground

but no luck Still clicks three times when connecting A/C and one
time when disconnecting.
Mar 03, 2012, 02:36 PM
xandrios's Avatar
That sucks. Some PSUs don't have the standard ps_on and ps_kill pins. Next would be to connect each signal pin to another through a resistor one at a time. Usually only one connection is needed in this instance. Try one signal pin at a time and hope for the best.
Mar 05, 2012, 02:33 PM
Registered User

ok my PS is running but , for 12v output how is the jump ?

many thanks

laurent on2vhf

Originally Posted by xandrios
Delta DPS-600DB Full Pinout. Same as Delta DPS-450CB.

Connect PS On and PS Kill to ground to power up.
Mar 05, 2012, 03:50 PM
xandrios's Avatar
Hello on2vhf.

Connect like this.


Last edited by xandrios; Mar 05, 2012 at 03:57 PM.
Mar 05, 2012, 09:44 PM
Registered User
Hello Xandrios,

i am connected your first image, and PU is running .....
but i am not 12v output into p1 +12v and p3 GND ?

ok bingo yesssssss for 12v i am use P2 and P3
bests regards

laurent on2vhf
Last edited by on2vhf; Mar 05, 2012 at 09:56 PM.
Mar 06, 2012, 07:15 AM
Nelapaty's Avatar
Has anyone used these?
Mar 06, 2012, 08:05 AM
Registered User
earlwb's Avatar
Originally Posted by Nelapaty
it is hard to want to experiment with something that costs US $50 each. You usually want to get a couple, three or four of the things so that if you screw one up you still have some spares. But they do look pretty interesting though. But I am pretty well set for the next few years with the surplus PSU's I got already. I have some US $5.00 PSUs and of course the bigger US $10.00 PSUs I got before as well.

Since they have a on/off switch on it, you likely only need to load the 3.3v line with a load resistor to simulate a CPU hooked up to it and it should power up OK. it may not even need a load resistor either. But usually on these types of PSUs they need a load of some sort on them before they power up.
Mar 06, 2012, 10:33 AM
Nelapaty's Avatar
Thanks earlwb I might just stick with the ones I have for now just was curios if someone had played with these ..


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