HP Pavilion 540n power supply & front panel pin schematic info

I am trying to move a HP Pavilion 540n to a Gateway LPmini Tower (GP6-350)
I am doing this because the small HP case does not allow enough ambient air
movement and the gateway is a large case... It will also be a performance
sleeper of sorts using the Pent 11 Gateway Housing, as I want to create
another dual boot system, for my next users group meeting...

I have cutout the restrictive power supply opening for a generic power
supply. Discovered the bolt pattern was already complete, I only had to
make a round area for the fan, and a small Dremel cut for the female 120
volt connector...

I could not get the system to power up using the Pavilion 540n power supply,
so went for a larger HP power supply... both fit easily in the resized
power supply area...
http://support.gateway.com/s/CASES/B...b0052506.shtml

I also moved the Gateway front panel pins into the HP front panel block and
for one reason or another can not remember or find my color coded
drawing... Still looking for a webpage to make certain I have wired the
Front panel pins correct...
Front Panel pin-
http://support.gateway.com/s/CASES/B...b0043415.shtml

* * Now the problems, I believe I moved everything correctly but system
will not power up, have two questions

* * Question: I could not get the system to power up using the Pavilion 540n
power supply, so went for a larger power supply from another HP... It this
a wiring problem? I am not able to find a comparison of the power lines to
know if the Pavilion 540n power supply has an odd proprietary wiring
schematic.

Pavilion 540n power supply = Bestec ATX-1956D
HP P/N:*0950-4106*

Generic Power supply = HIPRO HP-D2537F3R
HP P/N: 5187-1098

* * Question: Pinout on the motherboard does have a missing pin, and the
block has a white insert for that missing pin... Most Blocks I have seen
are double row, but this one is different and I can not remember how it was
installed, nor can I find the drawing I made to change the gateway switch
and LCD lights... Had a number of phone calls on other systems during the
time I was completing my drawing...

Might someone be able to post links to give me a visual for the power supply
wiring and the front panel pin layout for the HP Pavilion 540n...

JR the postman

Postman Delivers wrote:

>
> I am trying to move a HP Pavilion 540n to a Gateway LPmini Tower (GP6-350)
> I am doing this because the small HP case does not allow enough ambient
> air movement and the gateway is a large case... It will also be a
> performance sleeper of sorts using the Pent 11 Gateway Housing, as I want
> to create another dual boot system, for my next users group meeting...
>
> I have cutout the restrictive power supply opening for a generic power
> supply. Discovered the bolt pattern was already complete, I only had to
> make a round area for the fan, and a small Dremel cut for the female 120
> volt connector...
>
> I could not get the system to power up using the Pavilion 540n power
> supply, so went for a larger HP power supply... both fit easily in the
> resized power supply area...
> http://support.gateway.com/s/CASES/B...b0052506.shtml
>
> I also moved the Gateway front panel pins into the HP front panel block
> and for one reason or another can not remember or find my color coded
> drawing... Still looking for a webpage to make certain I have wired the
> Front panel pins correct...
> Front Panel pin-
> http://support.gateway.com/s/CASES/B...b0043415.shtml
>
> * * Now the problems, I believe I moved everything correctly but system
> will not power up, have two questions
>
> * * Question: I could not get the system to power up using the Pavilion
> 540n
> power supply, so went for a larger power supply from another HP... It
> this
> a wiring problem? I am not able to find a comparison of the power lines
> to know if the Pavilion 540n power supply has an odd proprietary wiring
> schematic.
>
> Pavilion 540n power supply = Bestec ATX-1956D
> HP P/N:*0950-4106*
>
> Generic Power supply = HIPRO HP-D2537F3R
> HP P/N: 5187-1098
>
> * * Question: Pinout on the motherboard does have a missing pin, and the
> block has a white insert for that missing pin... Most Blocks I have seen
> are double row, but this one is different and I can not remember how it
> was installed, nor can I find the drawing I made to change the gateway
> switch
> and LCD lights... Had a number of phone calls on other systems during the
> time I was completing my drawing...
>
> Might someone be able to post links to give me a visual for the power
> supply wiring and the front panel pin layout for the HP Pavilion 540n...
>
> JR the postman

* * *

Updated info:

Updated info:

I managed to locate my drawing, and the powerblock is wired correctly, how
do I find a reliable replacement power supply for this case moved system...

I certainly want to try and avoid another Bestec quality failure and wonder
if they are the only supplier for this computer... Small inconvenience with
the wires come out the side, would also create extra work relocating the
wire outlet in an original power supply so the case side can be
installed...

Seems I need to use a odd proprietary power supply.... Or rewire a decent
power supply, but need a layout page... anyone have a power supply
suggestion or as I would prefer a webpage on how to rewire for a HP 540n
computer system?

I will enlarge the cutout in the gateway Case to accommodate the Nic card
that is part of the motherboard arrangement with the USB ports today...

Looks good, and fits well in the case... A decent housing upgrade for this
computer system that was installed in a small form HP case... The
Gateway Housing can easily accommodate the HP Pentium lV 1.5 system... I
have several E-machines with Biostar motherboards used as a replaced, so
will try to move a EM T-2778 in the next few evenings, they use a normal
power supply but have a different back panel that will present a different
problem...

Maybe a $35 generic Computer case is better in the long run, but then my
recycling efforts would not be accomplished.... As I have already recycled
the E-machine with the Biostar motherboard and a decent power supply...

Funny how the cheap Bestec power supply is also the reason the E-machines
originally were tossed aside...

JR the postman

"Funny how the cheap Bestec power supply is also the reason the E-machines
originally were tossed aside." Not funny at all. Downright sick and
disgusting. Seems like GateMachines and HPaq do not give a **** about the
damage done to their reputations by their use of the Bestec junk. The lousy
power supply alone is ample reason to avoid buying Presarios, Pavilions,
eMachines, and Gateway boxes. I doubt that HPaq has the nerve to foist off the
Bestec power supplies on corporate customers who buy the business-class Evo
product line. I forget though, because it's been a while since I handled an
Evo... Ben Myers

On Wed, 14 Nov 2007 10:19:17 -0800, Postman Delivers
<JR_the_postman@xyzahoo.com> wrote:

>Postman Delivers wrote:
>
>>
>> I am trying to move a HP Pavilion 540n to a Gateway LPmini Tower (GP6-350)
>> I am doing this because the small HP case does not allow enough ambient
>> air movement and the gateway is a large case... It will also be a
>> performance sleeper of sorts using the Pent 11 Gateway Housing, as I want
>> to create another dual boot system, for my next users group meeting...
>>
>> I have cutout the restrictive power supply opening for a generic power
>> supply. Discovered the bolt pattern was already complete, I only had to
>> make a round area for the fan, and a small Dremel cut for the female 120
>> volt connector...
>>
>> I could not get the system to power up using the Pavilion 540n power
>> supply, so went for a larger HP power supply... both fit easily in the
>> resized power supply area...
>> http://support.gateway.com/s/CASES/B...b0052506.shtml
>>
>> I also moved the Gateway front panel pins into the HP front panel block
>> and for one reason or another can not remember or find my color coded
>> drawing... Still looking for a webpage to make certain I have wired the
>> Front panel pins correct...
>> Front Panel pin-
>> http://support.gateway.com/s/CASES/B...b0043415.shtml
>>
>> * * Now the problems, I believe I moved everything correctly but system
>> will not power up, have two questions
>>
>> * * Question: I could not get the system to power up using the Pavilion
>> 540n
>> power supply, so went for a larger power supply from another HP... It
>> this
>> a wiring problem? I am not able to find a comparison of the power lines
>> to know if the Pavilion 540n power supply has an odd proprietary wiring
>> schematic.
>>
>> Pavilion 540n power supply = Bestec ATX-1956D
>> HP P/N:*0950-4106*
>>
>> Generic Power supply = HIPRO HP-D2537F3R
>> HP P/N: 5187-1098
>>
>> * * Question: Pinout on the motherboard does have a missing pin, and the
>> block has a white insert for that missing pin... Most Blocks I have seen
>> are double row, but this one is different and I can not remember how it
>> was installed, nor can I find the drawing I made to change the gateway
>> switch
>> and LCD lights... Had a number of phone calls on other systems during the
>> time I was completing my drawing...
>>
>> Might someone be able to post links to give me a visual for the power
>> supply wiring and the front panel pin layout for the HP Pavilion 540n...
>>
>> JR the postman
>
>* * *
>
>Updated info:
>
>Updated info:
>
>I managed to locate my drawing, and the powerblock is wired correctly, how
>do I find a reliable replacement power supply for this case moved system...
>
>I certainly want to try and avoid another Bestec quality failure and wonder
>if they are the only supplier for this computer... Small inconvenience with
>the wires come out the side, would also create extra work relocating the
>wire outlet in an original power supply so the case side can be
>installed...
>
>Seems I need to use a odd proprietary power supply.... Or rewire a decent
>power supply, but need a layout page... anyone have a power supply
>suggestion or as I would prefer a webpage on how to rewire for a HP 540n
>computer system?
>
>I will enlarge the cutout in the gateway Case to accommodate the Nic card
>that is part of the motherboard arrangement with the USB ports today...
>
>Looks good, and fits well in the case... A decent housing upgrade for this
>computer system that was installed in a small form HP case... The
>Gateway Housing can easily accommodate the HP Pentium lV 1.5 system... I
>have several E-machines with Biostar motherboards used as a replaced, so
>will try to move a EM T-2778 in the next few evenings, they use a normal
>power supply but have a different back panel that will present a different
>problem...
>
>Maybe a $35 generic Computer case is better in the long run, but then my
>recycling efforts would not be accomplished.... As I have already recycled
>the E-machine with the Biostar motherboard and a decent power supply...
>
>Funny how the cheap Bestec power supply is also the reason the E-machines
>originally were tossed aside...
>
>JR the postman

On Nov 14 2007, 12:19 pm, Postman Delivers
<JR_the_post...@xyzahoo.com> wrote:
> Postman Delivers wrote:
>
> > I am trying to move a HP Pavilion 540n to a Gateway LPmini Tower (GP6-350)
> > I am doing this because the small HP case does not allow enough ambient
> > air movement and the gateway is a large case... It will also be a
> > performance sleeper of sorts using the Pent 11 Gateway Housing, as I want
> > to create another dual boot system, for my next users group meeting...
>
> > I have cutout the restrictive power supply opening for a generic power
> > supply. Discovered the bolt pattern was already complete, I only had to
> > make a round area for the fan, and a small Dremel cut for the female 120
> > volt connector...
>
> > I could not get the system to power up using the Pavilion 540n power
> > supply, so went for a larger HP power supply... both fit easily in the
> > resized power supply area...
> >http://support.gateway.com/s/CASES/B...b0052506.shtml
>
> > I also moved the Gateway front panel pins into the HP front panel block
> > and for one reason or another can not remember or find my color coded
> > drawing... Still looking for a webpage to make certain I have wired the
> > Front panel pins correct...
> > Front Panel pin-
> >http://support.gateway.com/s/CASES/B...b0043415.shtml
>
> > * * Now the problems, I believe I moved everything correctly but system
> > will not power up, have two questions
>
> > * * Question: I could not get the system to power up using the Pavilion
> > 540n
> > power supply, so went for a larger power supply from another HP... It
> > this
> > a wiring problem? I am not able to find a comparison of the power lines
> > to know if the Pavilion 540n power supply has an odd proprietary wiring
> > schematic.
>
> > Pavilion 540n power supply = Bestec ATX-1956D
> > HP P/N:*0950-4106*
>
> > Generic Power supply = HIPRO HP-D2537F3R
> > HP P/N: 5187-1098
>
> > * * Question: Pinout on the motherboard does have a missing pin, and the
> > block has a white insert for that missing pin... Most Blocks I have seen
> > are double row, but this one is different and I can not remember how it
> > was installed, nor can I find the drawing I made to change the gateway
> > switch
> > and LCD lights... Had a number of phone calls on other systems during the
> > time I was completing my drawing...
>
> > Might someone be able to post links to give me a visual for the power
> > supply wiring and the front panel pin layout for the HP Pavilion 540n...
>
> > JR the postman
>
> * * *
>
> Updated info:
>
> Updated info:
>
> I managed to locate my drawing, and the powerblock is wired correctly, how
> do I find a reliable replacement power supply for this case moved system...
>
> I certainly want to try and avoid another Bestec quality failure and wonder
> if they are the only supplier for this computer... Small inconvenience with
> the wires come out the side, would also create extra work relocating the
> wire outlet in an original power supply so the case side can be
> installed...
>
> Seems I need to use a odd proprietary power supply.... Or rewire a decent
> power supply, but need a layout page... anyone have a power supply
> suggestion or as I would prefer a webpage on how to rewire for a HP 540n
> computer system?
>
> I will enlarge the cutout in the gateway Case to accommodate the Nic card
> that is part of the motherboard arrangement with the USB ports today...
>
> Looks good, and fits well in the case... A decent housing upgrade for this
> computer system that was installed in a small form HP case... The
> Gateway Housing can easily accommodate the HP Pentium lV 1.5 system... I
> have several E-machines with Biostar motherboards used as a replaced, so
> will try to move a EM T-2778 in the next few evenings, they use a normal
> power supply but have a different back panel that will present a different
> problem...
>
> Maybe a $35 generic Computer case is better in the long run, but then my
> recycling efforts would not be accomplished.... As I have already recycled
> the E-machine with the Biostar motherboard and a decent power supply...
>
> Funny how the cheap Bestec power supply is also the reason the E-machines
> originally were tossed aside...
>
> JR the postman

Yea the bestecs are crap. The missing pin on your other supply (white
wire) is a -5V. Some better 20 pins will have it (atx 2.0.x spec and
some atx 12v), most 20+4 or 24 pin power supplys will not. Just get a
fortron like this one:

http://www.newegg.com/product/produc...82E16817104931

or a similar sparkle (fortron makes sparkle) if you want to be cheap
or don't like black

http://www.newegg.com/product/produc...82E16817103484

Both of those should have the white -5v pin provided they haven't
revised it. I have had good luck with fortron as HP/Emachine/Compaq
replacements.

Oh yea, fortron underrates their supplies, so your getting a really
good power supply at 350w, it can probably handle what others 400-450s
can.

Fortron has been around forever. I had a Fortron PSU in my first 386 system,
several eons ago.

HiPro is another decent but inexpensive brand OEM'ed by Dell, Lenovo/IBM and
others. Some name brand computers do not have a properly placed cutout (or do
not have one at all) for the on-off rocker switch on the back of many power
supplies. One of the HiPro PSUs with ATX standard dimensions lacks the on-off
rocker switch, making it an ideal replacement for Dells and others... Ben Myers

On Wed, 9 Jan 2008 07:34:23 -0800 (PST), randalwc@gmail.com wrote:

<SNIP>
>Yea the bestecs are crap. The missing pin on your other supply (white
>wire) is a -5V. Some better 20 pins will have it (atx 2.0.x spec and
>some atx 12v), most 20+4 or 24 pin power supplys will not. Just get a
>fortron like this one:
>
>http://www.newegg.com/product/produc...82E16817104931
>
>or a similar sparkle (fortron makes sparkle) if you want to be cheap
>or don't like black
>
>http://www.newegg.com/product/produc...82E16817103484
>
>Both of those should have the white -5v pin provided they haven't
>revised it. I have had good luck with fortron as HP/Emachine/Compaq
>replacements.
>
>Oh yea, fortron underrates their supplies, so your getting a really
>good power supply at 350w, it can probably handle what others 400-450s
>can.