Question about Dell HP-150SS (HP150SS) 150-Watt Power Supply

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Compaq power supply HP212 (old)

How to start without computer this old power supply ,
His name is HP 212 cable with 20 pin.....

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Re: compaq power supply HP212 (old)

If connector have two big brown wires (pins 1 and 11) and a small brown wire (pin 2). then short circuit the small brown wire with a big brown wire (pins 1 and 2).
Also short circuit the small black wire (pin 16) with a big black wire (pin 17).
Ps. The Power Supply needs a minimal load ex: 1A.

Posted on Jan 30, 2008

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Re: compaq power supply HP212 (old)

Works Great, But you can also go one step further and short the 'Blue and Yellow' to cause a constant load.. Then the On-Off switch will always control the power. Good Info Link.

Posted on Sep 09, 2010

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Re: compaq power supply HP212 (old)

Very easy
first give the power AC

Posted on Dec 07, 2007

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How to install

HP Support > Pavilion a1630n Desktop PC > Main Support page,

Took you this way in case you need additional information, and software; in the future.

No, replacing the Power Supply is not listed.

In the list click on the blue - How To
Now on Adding/Replacing Hardware.
Opening the PC Case

BEFORE working inside your computer, follow Anti-Static Precautions.

Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.
Relieve your body of Static.

Computer ON a table, computer unplugged from power, computer case open;
TOUCH an unpainted surface of the metal frame, of the open computer case.
This action will relieve your body of Static.

IF you leave your computer in the middle of working on it, be SURE to Touch the metal frame again upon your return.

1) Remove ALL cables. If you are not EXACTLY aware of where each cable goes, suggest making a drawing, and notes; as to where each cable goes before removing them.

2) Suggest lay a static free towel on the table you're working on, and lay the computer on it's side; opening of computer case -> Up.
Towel/cloth helps prevent scratching the table, and the computer.

Much easier to work on the computer this way, IMHO.

3) The plastic front of your computer is the Front Panel.
The area of contact pins on the motherboard, that the main wires from the Front Panel go to, is the Front Panel header.

(Power On switch, Power On LED light, Harddrive activity LED Restart switch; IF used)

The Front Panel header pinout is NOT listed. I THINK I know where the wires go. The Front Panel header pins. I do NOT know the color of the wires, though.
When replacing a Power Supply wires get bumped, and may get accidentally disconnected.
Suggestion is you make a drawing, and notes for the Front Panel header, and color of wires; also.

Also for the headers going along the bottom of the motherboard.
Better to safe, than trying to figure it out later.

4) The Power Supply has a Form Factor. This term was used strictly for motherboards, but has gone also to the Power Supply, and Computer Case.

The Form Factor for your Power Supply is ATX.
The term refers to the size, and shape of the case; and the power cables.
Size is approximately 6 inches Wide, 5.5 inches Long, and 3.5 inches in Height.
(152.39mm Wide x 139.7mm Long x 88.89mm Height)

It is a generic unit made by Bestec, HiPro, or Delta.
Maximum rated Wattage is 300 Watts.
(ACTUAL wattage is more like 60 to 70 percent, of what is stated.
180 to 210 Watts!)

This is JUST a look at an example. Not advertising,

By the photo you can see the type of power cables, and number used.

If I were recommending a replacement Power Supply, I sure would not recommend the above example.
A) Low quality Electrolytic Capacitors
B) Low quality Rectifier Bridge
C) Low quality MOSFET's
D) Low quality wiring; too small in gauge size

The above example gives a true 350 watts. Has all the power cables you'll need, an extra ones.

Suggest you find a Power Supply comparable to this one, when replacing.

Here's a look at your motherboard,
(Product information > Product specifications > Motherboard Specifications - A8M2N-LA (Nodus M3)

5) There are TWO power cables from the Power Supply, that plug into the motherboard;

A) 24-pin ATX Main power cable;

Looking at the motherboard photo, this power cable's connector, is all the way to the right/middle of the motherboard.
It is the whitish long connector that has two columns of 12 socket holes.
This is a general example of the power cable, and it's respective connector on the motherboard. NOTE* Color of connectors does NOT matter,

Note the power cable connector's Lock on the side, shown in the middle photo, and photo to the right.
The Lock is hinged. Operates like a see-saw on a playground.
The Top, or part that is closest to the wires; is squeezed in with the fingers, and thumb.

This action brings the hooked end at the bottom, away from the Lock Tab, on the motherboard's female connector.
Now the power cable's CONNECTOR, can gently be wiggled, and pulled up on; with the Lock depressed.

(ONLY use the connector when disconnecting a cable. DO NOT pull on the wires)

The Power Supply I referenced as a recommendation, and all new Power Supply's; have a 20 + 4-pin ATX main power cable.

This type of power cable connector was brought out, so that the Power Supply could be used on motherboard's that required a 20-pin ATX main power cable; or a 24-pin ATX main power cable.

Either use the extra 4-pin power cable to make a 24-pin model; or don't, to have a 20-pin model. YOU will use the 20-pin AND the 4-pin power cable - together.
General example of said cable,

NOTE the color code of the wires, in the additional 4-pin power cable.
Two Yellow (12 Volt), One Red (5 Volt), and One Black. (Ground)

B) The second power cable going to the motherboard, also has this type of Lock;
The 4-pin ATX +12 Volt Power cable,

NOTE the color code of the wires.
Two Yellow (12 Volt), two Black. (Ground)

You cannot mix the two power cables up, because the connectors are different, but wanted you to be aware of their likeness.
[4-pin ATX +12 Volt power cable, and 4-pin power cable for 24-pin ATX Main power cable)

Looking at the Top/Left in the motherboard photo, the square whitish 4-socket hole connector; is for the 4-pin ATX +12 Volt power cable.

6) Looking at -
HP Pavilion Media Center a1630n Desktop PC Product Specifications; tells me there is a SATA harddrive used, and a SATA optical drive,

Harddrive - 250GB SATA / 7200 rpm

16X DVD (+/-) R-RW RAM (+/-)R DL Lightscribe drive, is the optical drive.
Lightscribe was developed to be used on SATA optical drives. (CD/DVD drive)
Therefore I conclude it is a SATA optical drive.

The SATA harddrive, and the SATA optical drive; use this type of power cable,

Between it, and the SATA data cable, the SATA power cable's connector is longer. It has 15 contact pins.
A SATA data cable has 7-pins.

More in an added Comment.


Jan 09, 2013 | HP Pavilion a1630n Power Supply...

1 Answer

LEDs on motherboard light up but computer won't start

It still may be dead. Go here and get a PSU tester:

Apr 24, 2012 | Antec : True430 430W P4 ATX Power Supply...

1 Answer

My power went out and when it came back on the computer would not come on

eMachines uses low quality hardware components inside their computers. This is the way they can sell them at budget prices.

One main hardware component is the low quality power supply they use.
A generic power supply made by Bestec. (A generic power supply manufacturer)

(PSU. Power Supply Unit. The type of PSU used is a SMPS.
Switched-Mode Power Supply, )

Low quality;
A) Electrolytic Capacitors (Radial Aluminum Electrolytic Capacitor)
B) Rectifier Bridge
D) Wiring is too small in gauge
to name a few of the components.

However IMHO it is also best to check out the Power On switch.
There is a simple test to see whether the problem is a faulty Power On switch, or a faulty Power Supply.

The test involves bypassing the Power On switch. The Power On switch is not involved in this test.
A jumper wire is used on the Soft Power On wire, [ PS-ON ], and a Ground wire in the ATX main power cable connector.

If you bypass, and the Power Supply comes on you have a bad Power On switch.
If the Power Supply does Not come on you have a bad Power Supply.
If you would like to know more in detail on how to perform this simple test, simply post so in a Comment.

The Power Supply used is just a common ATX version.
ATX refers to the Form Factor of the power supply.
Regular size ATX form factor is approximately 6 inches Wide, 5-1/2 inches Long, and 3-1/2 inches Tall. (Height)

There are also differences in the pinout of the ATX main power cable.
Yours may have 20-pins, or 24-pins.
Power Supply's sold now take this into consideration.
Their ATX main power cable can be used as a 20-pin, or a 24-pin version.

[ General example of a 20-pin ATX main power cable, and it's connector,

Example of a 24-pin ATX main power cable, and it's connector,

Your motherboard may also require an additional power cable, commonly referred to as a P4 power cable, or P4 ATX 12V power cable, or just ATX 12V.
The actual name is 4-pin ATX +12 Volt power cable,

If you would like help in finding an inexpensive reliable Power Supply, please post in a Comment.
I will need to know what Model Number of eMachine you have. It's on the back next to the Windows product key, or up on the side of the computer tower.

If you need anything explained that I have stated here, please let me know in a Comment.

Apr 21, 2011 | E-Machines Bestec ATX-300-12E Rev. D 300w...

1 Answer

I bought a HP 6710f Pavillion desktop, running windows 7, and found out it only has a 250 watt power supply. I turned around and bought an Antec Greenwatts 500 watt ATX 12v v2.3 psu to install for future...

Presuming you mean the Earthwatts 500:
Should work, though the Earthwatts has the 24 pin ATX instead of the 20-pin.
You just need to snap the 24-pin connector apart to make it work as a 20-pin. It can be snapped back together for future motherboards.
The Bestec is just a standard ATX power supply

Mar 23, 2011 | HP Bestec ATX-250-12ZD 250w HP Pavillion...

1 Answer

I believe there is a short in my Antec power supply. Without plugging in the computer, how do I "test"? Do I try another power supply externally, bypassing the illedged "shorted"/bad supply?

If you have another supply around, you can remove the connections from the M/B ( 20 or 24 pin ) and a 4 pin 12 v connector. unplug the peripherals if you want. Carefully plug the new 20 or 24 pin conn from new supply into M/B and the 4 pin 12 v.If fans spin and there's no smell...sucess remove old and plug in new.

Mar 23, 2010 | System Power Supplies

2 Answers

I have replaced the power supply on my Acer Aspire X1700 computer but the new power supply acts exactly like the old. When I plug it in and turn it on the "Power Supply On" voltage goes from 5 VDC to 0 VDC...

When you have this problem on this PC, do not replace the power supply or the motherboard until you have first tried pulling out the video card. When the video card fails it can cause the x1700 to not power up. Pull the video card and see if it will power up without it.

Mar 09, 2010 | Acer (56.04145.901) (5604145901) Power...

1 Answer

How to use ATX-250-12z SMPS with 24 pin

Chances are that 250w power supply is not going to power a motherboard with a 24 pin connector, but you can try.
You will need to purchase a 20 to 24 pin adapter cable.
Google Search Terms: 20 to 24 pin adapter

Oct 27, 2009 | Gateway Emachine Bestec ATX-250-12E PS...

1 Answer


Anytime you see a Green wire in a computer, (Personal Computer), power supply's ->power cable, it is for the Soft Power On function.
This way there isn't a cable, (Cord), going from the Power On switch to the power supply.
These are ATX style of power supply's.

The Black insulated wires are Ground wires. ALL of them.

There was a older power supply made, and this was the AT style.

To provide a solution, I'm going to give you some information on the power cables, for Both of these styles of power supply's, then some advice.

1.This is info, and photos of the older AT power supply's power cables,

2.This is the newer ATX style power cable, and more specifically the 20-pin version,
Scroll down the page to view the 24-pin power cable, and then scroll down some more, to view the 20+4-pin power cable.

ALL ATX design power supply's use Pin 16 for PS ON, (Soft Power On), which is a Green wire, and ANY Black wire. ALL Black wires are a ground. Pin 15 has a Black wire, and is normally used to put a jumper in, from it to Pin 15. This turns the power supply on. There will be a small spark, and the chance of getting shocked.

What you are doing essentially, is using a personal computer power supply as a laboratory power source, therefore I cannot advise you further, as it is a Safety Hazard.

Jul 31, 2009 | Dell POWER SUPPLY PS-5201-5D (PS52015D)...

1 Answer

How can i start this without PC?

all what can i do is to give u this amazing article its me who wrote it, well u can benefit from my researches

Aug 18, 2008 | HP-COMPAQ - 243891-002 (243891002) Power...

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