🚀 go-pugleaf

<BertieBigBollox@gmail.com> wrote in message 
news:1188745903.167444.40540@d55g2000hsg.googlegroups.com...
> Power LED on mobo comes on but nothing when you hit the power button.
> Can I assume the mobo is dead?
>
> Also, just to rule out a power button problem, is it acceptable to
> short (with a jumper) the two-pin power button header on the mobo to
> force a power on that way?
>
Prove the PSU first.
Yes to the second question. 

On 2 Sep, 16:19, "meerkat" <m...@cov.com> wrote:
> <BertieBigBol...@gmail.com> wrote in message
>
> news:1188745903.167444.40540@d55g2000hsg.googlegroups.com...> Power LED on mobo comes on but nothing when you hit the power button.
> > Can I assume the mobo is dead?
>
> > Also, just to rule out a power button problem, is it acceptable to
> > short (with a jumper) the two-pin power button header on the mobo to
> > force a power on that way?
>
> Prove the PSU first.
> Yes to the second question.

Same result with a new PSU as well...

How would you test a PSU?

<BertieBigBollox@gmail.com> wrote in message 
news:1188747753.556405.212770@19g2000hsx.googlegroups.com...
> On 2 Sep, 16:19, "meerkat" <m...@cov.com> wrote:
>> <BertieBigBol...@gmail.com> wrote in message
>>
>> news:1188745903.167444.40540@d55g2000hsg.googlegroups.com...> Power LED 
>> on mobo comes on but nothing when you hit the power button.
>> > Can I assume the mobo is dead?
>>
>> > Also, just to rule out a power button problem, is it acceptable to
>> > short (with a jumper) the two-pin power button header on the mobo to
>> > force a power on that way?
>>
>> Prove the PSU first.
>> Yes to the second question.
>
> Same result with a new PSU as well...
>
> How would you test a PSU?
>
A test meter from, say, Maplins.
That way you can test the PSU with it switched on (under load)
to see if it`s delivering the correct voltages.

As for the other supply you tried, was it adequate for the job ?.

On 2 Sep, 16:48, "meerkat" <m...@cov.com> wrote:
> <BertieBigBol...@gmail.com> wrote in message
>
> news:1188747753.556405.212770@19g2000hsx.googlegroups.com...
>
> > On 2 Sep, 16:19, "meerkat" <m...@cov.com> wrote:
> >> <BertieBigBol...@gmail.com> wrote in message
>
> >>news:1188745903.167444.40540@d55g2000hsg.googlegroups.com...> Power LED
> >> on mobo comes on but nothing when you hit the power button.
> >> > Can I assume the mobo is dead?
>
> >> > Also, just to rule out a power button problem, is it acceptable to
> >> > short (with a jumper) the two-pin power button header on the mobo to
> >> > force a power on that way?
>
> >> Prove the PSU first.
> >> Yes to the second question.
>
> > Same result with a new PSU as well...
>
> > How would you test a PSU?
>
> A test meter from, say, Maplins.
> That way you can test the PSU with it switched on (under load)
> to see if it`s delivering the correct voltages.
>
> As for the other supply you tried, was it adequate for the job ?.

Initial PSU was a 250W Bestec, the new one is a 350W one...

Assuming the new one PSU is OK, would you assume the mobo is indeed
dead?

BertieBigBollox@gmail.com "contributed" in 24hoursupport.helpdesk:

> On 2 Sep, 16:19, "meerkat" <m...@cov.com> wrote:
>> <BertieBigBol...@gmail.com> wrote in message
>>
>> news:1188745903.167444.40540@d55g2000hsg.googlegroups.com...> Power
>> LED on mobo comes on but nothing when you hit the power button. 
>> > Can I assume the mobo is dead?
>>
>> > Also, just to rule out a power button problem, is it acceptable to
>> > short (with a jumper) the two-pin power button header on the mobo
>> > to force a power on that way?
>>
>> Prove the PSU first.
>> Yes to the second question.
> 
> Same result with a new PSU as well...
> 
> How would you test a PSU?
> 
> 

Stick your fingers in it and switch it on. If your hair starts pointing 
towards the ceiling, the PSU is OK.

-- 
Your mother was an inept fortune seeker who used to uproot trees on a 
luxury cruise liner.

<BertieBigBollox@gmail.com> wrote in message 
news:1188748294.222148.310160@o80g2000hse.googlegroups.com...
> On 2 Sep, 16:48, "meerkat" <m...@cov.com> wrote:
>> <BertieBigBol...@gmail.com> wrote in message
>>
>> news:1188747753.556405.212770@19g2000hsx.googlegroups.com...
>>
>> > On 2 Sep, 16:19, "meerkat" <m...@cov.com> wrote:
>> >> <BertieBigBol...@gmail.com> wrote in message
>>
>> >>news:1188745903.167444.40540@d55g2000hsg.googlegroups.com...> Power LED
>> >> on mobo comes on but nothing when you hit the power button.
>> >> > Can I assume the mobo is dead?
>>
>> >> > Also, just to rule out a power button problem, is it acceptable to
>> >> > short (with a jumper) the two-pin power button header on the mobo to
>> >> > force a power on that way?
>>
>> >> Prove the PSU first.
>> >> Yes to the second question.
>>
>> > Same result with a new PSU as well...
>>
>> > How would you test a PSU?
>>
>> A test meter from, say, Maplins.
>> That way you can test the PSU with it switched on (under load)
>> to see if it`s delivering the correct voltages.
>>
>> As for the other supply you tried, was it adequate for the job ?.
>
> Initial PSU was a 250W Bestec, the new one is a 350W one...
>
> Assuming the new one PSU is OK, would you assume the mobo is indeed
> dead?
>
You can`t `make assumptions` can you ?.
You need to Know you`re getting your correct voltages under load.

On Sun, 02 Sep 2007 08:51:34 -0700, "BertieBigBollox@gmail.com"
<BertieBigBollox@gmail.com> wrote:

>> As for the other supply you tried, was it adequate for the job ?.
>
>Initial PSU was a 250W Bestec, the new one is a 350W one...
>
>Assuming the new one PSU is OK, would you assume the mobo is indeed
>dead?

No.  Reseat all cards and memory.  Try disconnecting or removing all unnecessary
items.
Google motherboard capacitors and look for pics of blown caps to see if that is
your problem.

On 2 Sep, 16:56, "meerkat" <m...@cov.com> wrote:
> <BertieBigBol...@gmail.com> wrote in message
>
> news:1188748294.222148.310160@o80g2000hse.googlegroups.com...
>
> > On 2 Sep, 16:48, "meerkat" <m...@cov.com> wrote:
> >> <BertieBigBol...@gmail.com> wrote in message
>
> >>news:1188747753.556405.212770@19g2000hsx.googlegroups.com...
>
> >> > On 2 Sep, 16:19, "meerkat" <m...@cov.com> wrote:
> >> >> <BertieBigBol...@gmail.com> wrote in message
>
> >> >>news:1188745903.167444.40540@d55g2000hsg.googlegroups.com...> Power LED
> >> >> on mobo comes on but nothing when you hit the power button.
> >> >> > Can I assume the mobo is dead?
>
> >> >> > Also, just to rule out a power button problem, is it acceptable to
> >> >> > short (with a jumper) the two-pin power button header on the mobo to
> >> >> > force a power on that way?
>
> >> >> Prove the PSU first.
> >> >> Yes to the second question.
>
> >> > Same result with a new PSU as well...
>
> >> > How would you test a PSU?
>
> >> A test meter from, say, Maplins.
> >> That way you can test the PSU with it switched on (under load)
> >> to see if it`s delivering the correct voltages.
>
> >> As for the other supply you tried, was it adequate for the job ?.
>
> > Initial PSU was a 250W Bestec, the new one is a 350W one...
>
> > Assuming the new one PSU is OK, would you assume the mobo is indeed
> > dead?
>
> You can`t `make assumptions` can you ?.
> You need to Know you`re getting your correct voltages under load.

OK. First PSU wont even power on with Pin 14 shorted - so thats
knackered for starters.

 "BertieBigBollox@gmail.com" <BertieBigBollox@gmail.com> wrote:

>Power LED on mobo comes on but nothing when you hit the power button.
>Can I assume the mobo is dead?
>
>Also, just to rule out a power button problem, is it acceptable to
>short (with a jumper) the two-pin power button header on the mobo to
>force a power on that way?

There is a green wire you can short to any black wire to power on the
PS.

Best to do this in place so the PS has a load, just use a paper clip
to short green and any black.
www.bluemax.net/techtips/ATXPowerSupplyWiring/ATXPowerSupplyWiring.htm
-- 
Phoebe
http://wanderingspace.net/wp-content/uploads/2007/05/phoebe_portrait.jpg
 or http://tinyurl.com/2m77bp

BertieBigBollox@gmail.com wrote:
> Power LED on mobo comes on but nothing when you hit the power button.
> Can I assume the mobo is dead?
> 
> Also, just to rule out a power button problem, is it acceptable to
> short (with a jumper) the two-pin power button header on the mobo to
> force a power on that way?
> 

Your motherboard manufacturer may have some hints.  Asus shows a 
sequence of steps to take: 
http://support.asus.com/troubleshooting/troubleshooting.aspx?SLanguage=en-us

BertieBigBollox@gmail.com wrote:
> Power LED on mobo comes on but nothing when you hit the power button.
> Can I assume the mobo is dead?
>
> Also, just to rule out a power button problem, is it acceptable to
> short (with a jumper) the two-pin power button header on the mobo to
> force a power on that way?

Whatever you do, don't take to a shop for repair paul! 

BertieBigBollox@gmail.com wrote:
> Power LED on mobo comes on but nothing when you hit the power button.
> Can I assume the mobo is dead?
>
> Also, just to rule out a power button problem, is it acceptable to
> short (with a jumper) the two-pin power button header on the mobo to
> force a power on that way?

Whatever you do, don't take to a shop for repair Paul!

BertieBigBollox wrote ...
>
> "meerkat" wrote:
>>
>> BertieBigBol wrote ...
>>>
>>> Initial PSU was a 250W Bestec, the new one is a 350W one...
>>
>> You need to Know you`re getting your correct voltages under load.
>
> OK. First PSU wont even power on with Pin 14 shorted - so thats
> knackered for starters.

Did you have a load on that PSU?  Shorting PS-ON to ground on the 20- 
or 24-pin power connector (from PSU to mobo) may not get the PSU to 
power on.  The PSU may be smart enough to know there is no point in 
powering up completely if there is no load on it.  Add a working hard 
drive on one of the power taps from the PSU.  Make sure none of the 
taps from the PSU are connected to anything other than the test hard 
drive.  Then short PS-ON (pin 14, green wire) to ground (a black 
wire).  With a hard drive connected, do you see and hear the fan 
inside the PSU is spinning?  Does the hard drive spin up?

I have yet to see mention that this computer ever did power up before. 
You never mentioned if this was a working system or something you just 
put together and it has yet to work.  If it was a working computer 
before, what did you change that then caused the computer not to power 
up?  Did you add some other hardware?

You said the "power LED on the mobo" lights up when you connect the 
old or new PSU to the motherboard.  And which LED is that?  The one on 
the front of the case?  Or an LED on the motherboard?

On 2 Sep, 20:12, "Vanguard" <vangu...@mail.invalid> wrote:
> BertieBigBollox wrote ...
>
>
>
> > "meerkat" wrote:
>
> >> BertieBigBol wrote ...
>
> >>> Initial PSU was a 250W Bestec, the new one is a 350W one...
>
> >> You need to Know you`re getting your correct voltages under load.
>
> > OK. First PSU wont even power on with Pin 14 shorted - so thats
> > knackered for starters.
>
> Did you have a load on that PSU?  Shorting PS-ON to ground on the 20-
> or 24-pin power connector (from PSU to mobo) may not get the PSU to
> power on.  The PSU may be smart enough to know there is no point in
> powering up completely if there is no load on it.  Add a working hard
> drive on one of the power taps from the PSU.  Make sure none of the
> taps from the PSU are connected to anything other than the test hard
> drive.  Then short PS-ON (pin 14, green wire) to ground (a black
> wire).  With a hard drive connected, do you see and hear the fan
> inside the PSU is spinning?  Does the hard drive spin up?
>
> I have yet to see mention that this computer ever did power up before.
> You never mentioned if this was a working system or something you just
> put together and it has yet to work.  If it was a working computer
> before, what did you change that then caused the computer not to power
> up?  Did you add some other hardware?
>
> You said the "power LED on the mobo" lights up when you connect the
> old or new PSU to the motherboard.  And which LED is that?  The one on
> the front of the case?  Or an LED on the motherboard?

Yes. It was a working PC. Its a friends PC that has now stopped
working.

Apparently, the fan was making a noise and then it stopped working
altogether.

The LED on the actual mobo lights up.

On 2 Sep, 17:08, Shel-hed <mush-...@privacy.not> wrote:
> On Sun, 02 Sep 2007 08:51:34 -0700, "BertieBigBol...@gmail.com"
>
> <BertieBigBol...@gmail.com> wrote:
> >> As for the other supply you tried, was it adequate for the job ?.
>
> >Initial PSU was a 250W Bestec, the new one is a 350W one...
>
> >Assuming the new one PSU is OK, would you assume the mobo is indeed
> >dead?
>
> No.  Reseat all cards and memory.  Try disconnecting or removing all unnecessary
> items.
> Google motherboard capacitors and look for pics of blown caps to see if that is
> your problem.

Tried this.

BertieBigBollox wrote ...
>
> "Vanguard" wrote:
>>
>> BertieBigBollox wrote ...
>>>
>>> OK. First PSU wont even power on with Pin 14 shorted - so thats
>>> knackered for starters.
>>
>> Did you have a load on that PSU?  Shorting PS-ON to ground on the 
>> 20-
>> or 24-pin power connector (from PSU to mobo) may not get the PSU to
>> power on.  The PSU may be smart enough to know there is no point in
>> powering up completely if there is no load on it.  Add a working 
>> hard
>> drive on one of the power taps from the PSU.  Make sure none of the
>> taps from the PSU are connected to anything other than the test 
>> hard
>> drive.  Then short PS-ON (pin 14, green wire) to ground (a black
>> wire).  With a hard drive connected, do you see and hear the fan
>> inside the PSU is spinning?  Does the hard drive spin up?
>
> Yes. It was a working PC. Its a friends PC that has now stopped
> working.
>
> Apparently, the fan was making a noise and then it stopped working
> altogether.

WHICH fan stopped working?  There are rarely less than 3 fans: CPU, 
PSU, and 1 case fan.  If it was the CPU fan, the BIOS will see the 3rd 
wire (yellow) from the CPU fan effectively returning zero RPMs which, 
to the BIOS, means that fan isn't spinning.  If the CPU fan looks like 
it isn't spinning, the BIOS immediately powers down the computer to 
prevent the CPU from frying.

If you test the PSU using the PS-ON to ground short, you need to 
disconnect the PSU from everything except the hard disk used as a 
load.  If, for example, the CPU fan wasn't spinning then the BIOS 
shuts down the PSU but that would only happen if the 20- or 24-pin 
connector from the PSU was attached to the motherboard.

On 3 Sep, 11:23, "Vanguard" <vangu...@mail.invalid> wrote:
> BertieBigBollox wrote ...
>
>
>
>
>
> > "Vanguard" wrote:
>
> >> BertieBigBollox wrote ...
>
> >>> OK. First PSU wont even power on with Pin 14 shorted - so thats
> >>> knackered for starters.
>
> >> Did you have a load on that PSU?  Shorting PS-ON to ground on the
> >> 20-
> >> or 24-pin power connector (from PSU to mobo) may not get the PSU to
> >> power on.  The PSU may be smart enough to know there is no point in
> >> powering up completely if there is no load on it.  Add a working
> >> hard
> >> drive on one of the power taps from the PSU.  Make sure none of the
> >> taps from the PSU are connected to anything other than the test
> >> hard
> >> drive.  Then short PS-ON (pin 14, green wire) to ground (a black
> >> wire).  With a hard drive connected, do you see and hear the fan
> >> inside the PSU is spinning?  Does the hard drive spin up?
>
> > Yes. It was a working PC. Its a friends PC that has now stopped
> > working.
>
> > Apparently, the fan was making a noise and then it stopped working
> > altogether.
>
> WHICH fan stopped working?  There are rarely less than 3 fans: CPU,
> PSU, and 1 case fan.  If it was the CPU fan, the BIOS will see the 3rd
> wire (yellow) from the CPU fan effectively returning zero RPMs which,
> to the BIOS, means that fan isn't spinning.  If the CPU fan looks like
> it isn't spinning, the BIOS immediately powers down the computer to
> prevent the CPU from frying.
>
> If you test the PSU using the PS-ON to ground short, you need to
> disconnect the PSU from everything except the hard disk used as a
> load.  If, for example, the CPU fan wasn't spinning then the BIOS
> shuts down the PSU but that would only happen if the 20- or 24-pin
> connector from the PSU was attached to the motherboard.

Dont know which fan. Like I said its a friends PC and I can get any
sense. They said the fan was very noisy so its probably the PSU fan I
guess - there is no case fan.

So, I suppose it could just be a dead CPU fan?

ALL power connectors are in place?
Remove all hardware except PSU -CPU/HSF -1 stick of memory -video. Make sure the 3 pin fan 
header, reserved for the CPU is connected to the CPU fan.
Will it boot?


<BertieBigBollox@gmail.com> wrote in message 
news:1188745903.167444.40540@d55g2000hsg.googlegroups.com...
> Power LED on mobo comes on but nothing when you hit the power button.
> Can I assume the mobo is dead?
>
> Also, just to rule out a power button problem, is it acceptable to
> short (with a jumper) the two-pin power button header on the mobo to
> force a power on that way?
> 

On 3 Sep, 16:51, "JAD" <john d...@harvesting.addys.for.porn.spam>
wrote:
> ALL power connectors are in place?
> Remove all hardware except PSU -CPU/HSF -1 stick of memory -video. Make sure the 3 pin fan
> header, reserved for the CPU is connected to the CPU fan.
> Will it boot?

Yep. Its an Intel socket 478 board so one 20-pin main connector and 1
square 12v power.

Tried as you suggest - still nothing. LED light on the mobo but
nothing when I short the power on pins (PSU doesnt start up or
anything elsee).

If the CPU fan is the problem, would this display the same symptoms?

Or is it looking more like u/s mobo?

<BertieBigBollox@gmail.com> wrote in message 
news:1188838315.736843.297920@k79g2000hse.googlegroups.com...
> On 3 Sep, 16:51, "JAD" <john d...@harvesting.addys.for.porn.spam>
> wrote:
>> ALL power connectors are in place?
>> Remove all hardware except PSU -CPU/HSF -1 stick of memory -video. Make sure the 3 pin 
>> fan
>> header, reserved for the CPU is connected to the CPU fan.
>> Will it boot?
>
> Yep. Its an Intel socket 478 board so one 20-pin main connector and 1
> square 12v power.
>
> Tried as you suggest - still nothing. LED light on the mobo but
> nothing when I short the power on pins (PSU doesnt start up or
> anything elsee).
>
> If the CPU fan is the problem, would this display the same symptoms?
>
> Or is it looking more like u/s mobo?
>

PSu or MB. Since you have the MB 'all is good lite', I'm thinking PSu is not delivering on 
one of the rails. 

BertieBigBollox wrote ...
>
> "Vanguard" wrote:
>>
>> WHICH fan stopped working?  There are rarely less than 3 fans: CPU,
>> PSU, and 1 case fan.  If it was the CPU fan, the BIOS will see the 
>> 3rd
>> wire (yellow) from the CPU fan effectively returning zero RPMs 
>> which,
>> to the BIOS, means that fan isn't spinning.  If the CPU fan looks 
>> like
>> it isn't spinning, the BIOS immediately powers down the computer to
>> prevent the CPU from frying.
>
> Dont know which fan. Like I said its a friends PC and I can get any
> sense. They said the fan was very noisy so its probably the PSU fan 
> I
> guess - there is no case fan.
>
> So, I suppose it could just be a dead CPU fan?

You could tell by looking.  With the PSU connected to the mobo, power 
up and check if the CPU fan starts a bit.  You could also give it a 
spin with your fingers to check if the blades rotate freely.  You 
won't know until you look inside.  I thought you said you already 
replaced the PSU with a new one so I figured you had the computer to 
look at.

On 3 Sep, 18:04, "JAD" <john d...@harvesting.addys.for.porn.spam>
wrote:
> <BertieBigBol...@gmail.com> wrote in message
>
> news:1188838315.736843.297920@k79g2000hse.googlegroups.com...
>
>
>
> > On 3 Sep, 16:51, "JAD" <john d...@harvesting.addys.for.porn.spam>
> > wrote:
> >> ALL power connectors are in place?
> >> Remove all hardware except PSU -CPU/HSF -1 stick of memory -video. Make sure the 3 pin
> >> fan
> >> header, reserved for the CPU is connected to the CPU fan.
> >> Will it boot?
>
> > Yep. Its an Intel socket 478 board so one 20-pin main connector and 1
> > square 12v power.
>
> > Tried as you suggest - still nothing. LED light on the mobo but
> > nothing when I short the power on pins (PSU doesnt start up or
> > anything elsee).
>
> > If the CPU fan is the problem, would this display the same symptoms?
>
> > Or is it looking more like u/s mobo?
>
> PSu or MB. Since you have the MB 'all is good lite', I'm thinking PSu is not delivering on
> one of the rails.

Yes. Original PSU is knackered but still the same with new PSU. So I
think its PSU and mobo.

> You could tell by looking.  With the PSU connected to the mobo, power
> up and check if the CPU fan starts a bit.  You could also give it a
> spin with your fingers to check if the blades rotate freely.  You
> won't know until you look inside.  I thought you said you already
> replaced the PSU with a new one so I figured you had the computer to
> look at.

Not a spark out of anything except for the LED on the mobo.