Compaq PS 2018 powersupply..

I have one of these for an older DeskPro, Part no 288468-001, and is not
working, of course.
Anyone who knows where to buy such old PSU's today ? Only 90watts i
belive, is that adequate for a Pentium 2 450 Mhz ?

The problem is that it will not "ignite", it just starts and stops 0,2
sec later... Where can i look for the cause, since i like to do som
soldering by my self ?

Any service-manual out there ?

Torbjorn.

You Might Try www.power-on.com

KC

"Torbjørn Morka" wrote in message
...
I have one of these for an older DeskPro, Part no 288468-001, and is not
working, of course.
Anyone who knows where to buy such old PSU's today ? Only 90watts i
belive, is that adequate for a Pentium 2 450 Mhz ?

The problem is that it will not "ignite", it just starts and stops 0,2
sec later... Where can i look for the cause, since i like to do som
soldering by my self ?

Any service-manual out there ?

Torbjorn.

A 90w power supply is sufficient for a Pentium II system provided it is not
loaded with other peripheral devices. Before spending the money on a power
supply, do some further diagnostic work. A system shutting itself off after a
couple of seconds can be caused by any number of faulty components, the most
likely being the power supply, the motherboard, and the memory.

With Pentium II systems, Compaq used standard ATX power connectors, so you might
try connecting up another ATX power supply. You can use a power supply of any
size and wattage as long as its power connector reaches the motherboard's mating
connector. Simply detach the Compaq power supply, attach the other one and see
what happens. If the motherboard boots up and displays something on your
monitor, then, yes, the Compaq power supply is defective.

For ordering spare parts, which continent are you on? From your name, I'd guess
Scandanavia, likely Norway... Ben Myers

On Thu, 11 Nov 2004 19:41:22 +0100, =?ISO-8859-1?Q?Torbj=F8rn_Morka?=
wrote:

I have one of these for an older DeskPro, Part no 288468-001, and is not
working, of course.
Anyone who knows where to buy such old PSU's today ? Only 90watts i
belive, is that adequate for a Pentium 2 450 Mhz ?

The problem is that it will not "ignite", it just starts and stops 0,2
sec later... Where can i look for the cause, since i like to do som
soldering by my self ?

Any service-manual out there ?

Torbjorn.

Ben Myers wrote:
A 90w power supply is sufficient for a Pentium II system provided it is not
loaded with other peripheral devices. Before spending the money on a power
supply, do some further diagnostic work. A system shutting itself off after a
couple of seconds can be caused by any number of faulty components, the most
likely being the power supply, the motherboard, and the memory.

With Pentium II systems, Compaq used standard ATX power connectors, so you might
try connecting up another ATX power supply. You can use a power supply of any
size and wattage as long as its power connector reaches the motherboard's mating
connector. Simply detach the Compaq power supply, attach the other one and see
what happens. If the motherboard boots up and displays something on your
monitor, then, yes, the Compaq power supply is defective.

For ordering spare parts, which continent are you on? From your name, I'd guess
Scandanavia, likely Norway... Ben Myers


Only 14 pins connector, not standard ATX i guess ?


Torbjorn.
(Norway)

Definitely different than ATX. Are there TWO connectors from the power supply,
side by side? If so, the connector style is AT or baby-AT, dating way back to
the mid-1980's... Ben Myers

On Thu, 11 Nov 2004 22:15:56 +0100, =?ISO-8859-1?Q?Torbj=F8rn_Morka?=
wrote:

Ben Myers wrote:
A 90w power supply is sufficient for a Pentium II system provided it is not
loaded with other peripheral devices. Before spending the money on a power
supply, do some further diagnostic work. A system shutting itself off after a
couple of seconds can be caused by any number of faulty components, the most
likely being the power supply, the motherboard, and the memory.

With Pentium II systems, Compaq used standard ATX power connectors, so you might
try connecting up another ATX power supply. You can use a power supply of any
size and wattage as long as its power connector reaches the motherboard's mating
connector. Simply detach the Compaq power supply, attach the other one and see
what happens. If the motherboard boots up and displays something on your
monitor, then, yes, the Compaq power supply is defective.

For ordering spare parts, which continent are you on? From your name, I'd guess
Scandanavia, likely Norway... Ben Myers


Only 14 pins connector, not standard ATX i guess ?


Torbjorn.
(Norway)

Ben Myers wrote:
Definitely different than ATX. Are there TWO connectors from the power supply,
side by side? If so, the connector style is AT or baby-AT, dating way back to
the mid-1980's... Ben Myers





There are another cable with two connectors on, one for HDD and the
other for FDD, they are linked together.


Torbjorn.

"Torbjørn Morka" wrote in message
...
Ben Myers wrote:
Definitely different than ATX. Are there TWO connectors from the power
supply,
side by side? If so, the connector style is AT or baby-AT, dating way
back to
the mid-1980's... Ben Myers

There are another cable with two connectors on, one for HDD and the
other for FDD, they are linked together.

Torbjorn.

No, these would be two matching connectors, marked P8 & P9 I believe.

KC

"With Pentium II systems, Compaq used standard ATX power connectors"

Ben, not on all of them. Many PII Presarios were definitely NOT standard ATX
connectors. And not all PII DeskPros were ATX standard, either. Not until
the PIIIs were you reasonably sure of getting a standard ATX supply.
HH

ben_myers_spam_me_not @ charter.net (Ben Myers) wrote in message
...
A 90w power supply is sufficient for a Pentium II system provided it is not
loaded with other peripheral devices. Before spending the money on a
power
supply, do some further diagnostic work. A system shutting itself off
after a
couple of seconds can be caused by any number of faulty components, the
most
likely being the power supply, the motherboard, and the memory.

With Pentium II systems, Compaq used standard ATX power connectors, so you
might
try connecting up another ATX power supply. You can use a power supply of
any
size and wattage as long as its power connector reaches the motherboard's
mating
connector. Simply detach the Compaq power supply, attach the other one
and see
what happens. If the motherboard boots up and displays something on your
monitor, then, yes, the Compaq power supply is defective.

For ordering spare parts, which continent are you on? From your name, I'd
guess
Scandanavia, likely Norway... Ben Myers

On Thu, 11 Nov 2004 19:41:22 +0100, =?ISO-8859-1?Q?Torbj=F8rn_Morka?=
wrote:

I have one of these for an older DeskPro, Part no 288468-001, and is not
working, of course.
Anyone who knows where to buy such old PSU's today ? Only 90watts i
belive, is that adequate for a Pentium 2 450 Mhz ?

The problem is that it will not "ignite", it just starts and stops 0,2
sec later... Where can i look for the cause, since i like to do som
soldering by my self ?

Any service-manual out there ?

Torbjorn.

You've seen more of the oddball ones than I. Let me guess from what I've seen.
The DeskPro P-II systems use mostly standard ATX, even if the form factor is
unusual as with the DeskPro SFF. Some DeskPro P-III systems use a power supply
and power connector which looks like ATX, but is longer, almost like an Intel
server power supply. Then we have the definitely different AP-series
workstations, and I can't remember what their power requirements were, nor do I
really want to. Finally, Presarios, as you say. Lotsa strange shapes for parts
inside the Presarios I've stumbled across.

Summary: It's tough to generalize with Compaq hardware. A possible explanation
why Compaq ended up finding a merger "partner"? Compaq spare parts are always a
nightmare... Ben Myers

On Fri, 12 Nov 2004 22:20:21 -0500, "HH" wrote:

"With Pentium II systems, Compaq used standard ATX power connectors"

Ben, not on all of them. Many PII Presarios were definitely NOT standard ATX
connectors. And not all PII DeskPros were ATX standard, either. Not until
the PIIIs were you reasonably sure of getting a standard ATX supply.
HH

Agreed, except it had nothing to do with the merger, which Compaq had to do
in order to survive.
HH

ben_myers_spam_me_not @ charter.net (Ben Myers) wrote in message
...
You've seen more of the oddball ones than I. Let me guess from what I've
seen.
The DeskPro P-II systems use mostly standard ATX, even if the form factor
is
unusual as with the DeskPro SFF. Some DeskPro P-III systems use a power
supply
and power connector which looks like ATX, but is longer, almost like an
Intel
server power supply. Then we have the definitely different AP-series
workstations, and I can't remember what their power requirements were, nor
do I
really want to. Finally, Presarios, as you say. Lotsa strange shapes for
parts
inside the Presarios I've stumbled across.

Summary: It's tough to generalize with Compaq hardware. A possible
explanation
why Compaq ended up finding a merger "partner"? Compaq spare parts are
always a
nightmare... Ben Myers

On Fri, 12 Nov 2004 22:20:21 -0500, "HH" wrote:

"With Pentium II systems, Compaq used standard ATX power connectors"

Ben, not on all of them. Many PII Presarios were definitely NOT standard
ATX
connectors. And not all PII DeskPros were ATX standard, either. Not until
the PIIIs were you reasonably sure of getting a standard ATX supply.
HH