Two fried CPUs ?

[Andre]

Hi group .

Now my other machine is playing up . I tried two different CPUs in -
both fail . The old VIA C3-600 works but not the P-3 700 or the
Celeron 600.

No beep codes, nothing except a black screen . Any ideas ?

Did CMOS reset, no effect.

-A

 

[JURB6006]

Power supply? What kinda machine, some name brand (which are usually cheapo)
PCs derive core voltages form the power supply, which is oft times inadequate.

Simple matter to plug in an ATX supply and see what happens. Other than that,
you start with nothing but RAM and video, in fact even without RAM. If it
doesn't beep then, change out the vidcard. Borrow one, infact if you got AGP,
borrow an AGP one and a PCI one and try them both. If all else fails try it
even without a vidcard, if it don't beep then it's pretty sure the mobo or the
processor.

If at some time here it starts showing signs of life, you add back one stick of
RAM stick at a time, then floppy, HD, each CD drive in turn and when it stops,
it's the last thing you connected. Double confirm this before going out and
spending $$$. If it dies on the HD, also try it without fans, or get an old AT
supply to power the HD only. Switch it on right when you turn the PC on. I've
seen PSes that had normal voltages, but they choked on the initial current draw
of a HD spinning up and unparking the heads. Drove me nuts, I thought sure the
drive was bad.

good luck.

JURB

 

[Andre]

jurb6006@aol.com (JURB6006) wrote in message news:<20030917204620.05851.00001114@mb-m07.aol.com>...

Power supply? What kinda machine, some name brand (which are usually cheapo)
PCs derive core voltages form the power supply, which is oft times inadequate.

Hmm . Its possible (this is supposedly a P4-ready power supply what
came with the case)

Simple matter to plug in an ATX supply and see what happens. Other than that,
you start with nothing but RAM and video, in fact even without RAM. If it
doesn't beep then, change out the vidcard. Borrow one, infact if you got AGP,
borrow an AGP one and a PCI one and try them both. If all else fails try it
even without a vidcard, if it don't beep then it's pretty sure the mobo or the
processor.

OK thanks .
BTW I did use a heatsink and fan . One of them shows signs of having
been fried (the thermal pad was firmly stuck to the chip in patches
which I then cleaned off with IPA)

The other seemed OK . The owner did mention that they may or may not
work which is why I got two .

The mainboard is an A-Trend ATC7460M . Please, someone has to have a
manual someplace 'cos I haven't got it ! .

If at some time here it starts showing signs of life, you add back one stick of
RAM stick at a time, then floppy, HD, each CD drive in turn and when it stops,
it's the last thing you connected. Double confirm this before going out and
spending $$$. If it dies on the HD, also try it without fans, or get an old AT
supply to power the HD only. Switch it on right when you turn the PC on. I've
seen PSes that had normal voltages, but they choked on the initial current draw

I can test that by turning off the caddy and/or removing the HDD ,
thanks

of a HD spinning up and unparking the heads. Drove me nuts, I thought sure the
drive was bad.

good luck.

tks
-A

> JURB

 

[Andre]

testing_h@yahoo.com (Andre) wrote in message news:<2c2cf14c.0309180003.7561b785@posting.google.com>...

jurb6006@aol.com (JURB6006) wrote in message news:<20030917204620.05851.00001114@mb-m07.aol.com>...
Power supply? What kinda machine, some name brand (which are usually cheapo)
PCs derive core voltages form the power supply, which is oft times inadequate.

Hmm . Its possible (this is supposedly a P4-ready power supply what
came with the case)


Simple matter to plug in an ATX supply and see what happens. Other than that,
you start with nothing but RAM and video, in fact even without RAM. If it
doesn't beep then, change out the vidcard. Borrow one, infact if you got AGP,
borrow an AGP one and a PCI one and try them both. If all else fails try it
even without a vidcard, if it don't beep then it's pretty sure the mobo or the
processor.

OK thanks .
BTW I did use a heatsink and fan . One of them shows signs of having
been fried (the thermal pad was firmly stuck to the chip in patches
which I then cleaned off with IPA)

The other seemed OK . The owner did mention that they may or may not
work which is why I got two .

The mainboard is an A-Trend ATC7460M . Please, someone has to have a
manual someplace 'cos I haven't got it ! .


If at some time here it starts showing signs of life, you add back one stick of
RAM stick at a time, then floppy, HD, each CD drive in turn and when it stops,
it's the last thing you connected. Double confirm this before going out and
spending $$$. If it dies on the HD, also try it without fans, or get an old AT
supply to power the HD only. Switch it on right when you turn the PC on. I've
seen PSes that had normal voltages, but they choked on the initial current draw

I can test that by turning off the caddy and/or removing the HDD ,
thanks

of a HD spinning up and unparking the heads. Drove me nuts, I thought sure the
drive was bad.

good luck.


tks
-A

Tried your suggestions . No hard disk, RAM . The graphics card is
on-board .

With the "dead" CPUs nothing happens on boot (black screen) . With the
"good" CPU it beeps once a second .

I'll try these two CPUs on another board before condemning them .

Thanks.

-Andre

> > JURB

 

[Mike]

it beeps once a second because the BIOS has been corrupted.

there is a feature where it will beep and seek the foppy, and beep and seek
the floppy, on and on and on.....

its waiting for a recovery disk. more on that with the motherboards
instructions.





"Andre" <testing_h@yahoo.com> wrote in message
news:2c2cf14c.0309230302.861aa0d@posting.google.com...

testing_h@yahoo.com (Andre) wrote in message
news:<2c2cf14c.0309180003.7561b785@posting.google.com>...
jurb6006@aol.com (JURB6006) wrote in message
news:<20030917204620.05851.00001114@mb-m07.aol.com>...
Power supply? What kinda machine, some name brand (which are usually
cheapo)
PCs derive core voltages form the power supply, which is oft times
inadequate.

Hmm . Its possible (this is supposedly a P4-ready power supply what
came with the case)


Simple matter to plug in an ATX supply and see what happens. Other
than that,
you start with nothing but RAM and video, in fact even without RAM. If
it
doesn't beep then, change out the vidcard. Borrow one, infact if you
got AGP,
borrow an AGP one and a PCI one and try them both. If all else fails
try it
even without a vidcard, if it don't beep then it's pretty sure the
mobo or the
processor.

OK thanks .
BTW I did use a heatsink and fan . One of them shows signs of having
been fried (the thermal pad was firmly stuck to the chip in patches
which I then cleaned off with IPA)

The other seemed OK . The owner did mention that they may or may not
work which is why I got two .

The mainboard is an A-Trend ATC7460M . Please, someone has to have a
manual someplace 'cos I haven't got it ! .


If at some time here it starts showing signs of life, you add back one
stick of
RAM stick at a time, then floppy, HD, each CD drive in turn and when
it stops,
it's the last thing you connected. Double confirm this before going
out and
spending $$$. If it dies on the HD, also try it without fans, or get
an old AT
supply to power the HD only. Switch it on right when you turn the PC
on. I've
seen PSes that had normal voltages, but they choked on the initial
current draw

I can test that by turning off the caddy and/or removing the HDD ,
thanks

of a HD spinning up and unparking the heads. Drove me nuts, I thought
sure the
drive was bad.

good luck.


tks
-A


Tried your suggestions . No hard disk, RAM . The graphics card is
on-board .

With the "dead" CPUs nothing happens on boot (black screen) . With the
"good" CPU it beeps once a second .

I'll try these two CPUs on another board before condemning them .

Thanks.

-Andre

JURB