no power - help

I went to add some more memory to one of my PCs today, trying some
extra memory chip not knowing what kinds they were...the first one
worked fine but I found out it was on 16mb, so I turned everything
off, and installed the next one figuring it would more than likely be
at least a 64, but when I went to turn the machine back on, nothing
happened. No beep, no light comes on, nothing. When I flip the switch
on the power supply itself, the fans come on for a few seconds and
then stop. I switched the power supply with another that I *think* is
still good, and had the same results. I've checked every connection,
but can't imagine what went wrong. Could I have 2 bad power supplies
that just happened to go bad as I was installing a memory card? Did I
screw something up somehow? I'm not even sure what to look for at this
point.


Greg

NOT a good idea to randomly install unknown RAM ...

--
DaveW



"fear" wrote in message
m...
I went to add some more memory to one of my PCs today, trying some
extra memory chip not knowing what kinds they were...the first one
worked fine but I found out it was on 16mb, so I turned everything
off, and installed the next one figuring it would more than likely be
at least a 64, but when I went to turn the machine back on, nothing
happened. No beep, no light comes on, nothing. When I flip the switch
on the power supply itself, the fans come on for a few seconds and
then stop. I switched the power supply with another that I *think* is
still good, and had the same results. I've checked every connection,
but can't imagine what went wrong. Could I have 2 bad power supplies
that just happened to go bad as I was installing a memory card? Did I
screw something up somehow? I'm not even sure what to look for at this
point.


Greg

"fear" wrote in message
m...
I went to add some more memory to one of my PCs today, trying some
extra memory chip not knowing what kinds they were...the first one
worked fine but I found out it was on 16mb, so I turned everything
off, and installed the next one figuring it would more than likely be
at least a 64, but when I went to turn the machine back on, nothing
happened. No beep, no light comes on, nothing. When I flip the switch
on the power supply itself, the fans come on for a few seconds and
then stop. I switched the power supply with another that I *think* is
still good, and had the same results. I've checked every connection,
but can't imagine what went wrong. Could I have 2 bad power supplies
that just happened to go bad as I was installing a memory card? Did I
screw something up somehow? I'm not even sure what to look for at this
point.


Greg

It is possible you fried the motherboard by an ESD (electro static
discharge). Were you conscious of this common problem occuring? If not,
you may have had this happen to you. A few years ago I fried one of the
computers at work this way, accidentally, of course. But a small static
discharge to the MB could kill it if you don't take precautions. And even
if you do take precautions sometimes an accident can occur.

John

(fear) wrote in message om...
I went to add some more memory to one of my PCs today, trying some
extra memory chip not knowing what kinds they were...the first one
worked fine but I found out it was on 16mb, so I turned everything
off, and installed the next one figuring it would more than likely be
at least a 64, but when I went to turn the machine back on, nothing
happened. No beep, no light comes on, nothing. When I flip the switch
on the power supply itself, the fans come on for a few seconds and
then stop. I switched the power supply with another that I *think* is
still good, and had the same results. I've checked every connection,
but can't imagine what went wrong. Could I have 2 bad power supplies
that just happened to go bad as I was installing a memory card? Did I
screw something up somehow? I'm not even sure what to look for at this
point.


Greg

I believe my friend had a problem similar to this before. It turned
out his motherboard was shorting to the case, through the screw
attachment points. I guess he had to get some plastic washers to
isolate it. Not sure why changing memory modules would cause this to
come around though. I'm hesitant to say this is the cause, but maybe
something similar, because his fan would only run for a few seconds
also.

Aaron

Is it possible that the RAM card itself is either causing it to not
start, or that it did some kind of damage to the MB?

"DaveW" wrote in message news:yT_Ob.102340$xy6.197084@attbi_s02...
NOT a good idea to randomly install unknown RAM ...

--
DaveW



"fear" wrote in message
m...
I went to add some more memory to one of my PCs today, trying some
extra memory chip not knowing what kinds they were...the first one
worked fine but I found out it was on 16mb, so I turned everything
off, and installed the next one figuring it would more than likely be
at least a 64, but when I went to turn the machine back on, nothing
happened. No beep, no light comes on, nothing. When I flip the switch
on the power supply itself, the fans come on for a few seconds and
then stop. I switched the power supply with another that I *think* is
still good, and had the same results. I've checked every connection,
but can't imagine what went wrong. Could I have 2 bad power supplies
that just happened to go bad as I was installing a memory card? Did I
screw something up somehow? I'm not even sure what to look for at this
point.


Greg

Also I forgot to mention, I tried, just for fun, putting the first
power supply back in, and got the same results, but when I then turned
that switch off, I heard a 'pop' and some smoke came out of the power
supply box.

(Aaron) wrote in message . com...
(fear) wrote in message om...
I went to add some more memory to one of my PCs today, trying some
extra memory chip not knowing what kinds they were...the first one
worked fine but I found out it was on 16mb, so I turned everything
off, and installed the next one figuring it would more than likely be
at least a 64, but when I went to turn the machine back on, nothing
happened. No beep, no light comes on, nothing. When I flip the switch
on the power supply itself, the fans come on for a few seconds and
then stop. I switched the power supply with another that I *think* is
still good, and had the same results. I've checked every connection,
but can't imagine what went wrong. Could I have 2 bad power supplies
that just happened to go bad as I was installing a memory card? Did I
screw something up somehow? I'm not even sure what to look for at this
point.


Greg

I believe my friend had a problem similar to this before. It turned
out his motherboard was shorting to the case, through the screw
attachment points. I guess he had to get some plastic washers to
isolate it. Not sure why changing memory modules would cause this to
come around though. I'm hesitant to say this is the cause, but maybe
something similar, because his fan would only run for a few seconds
also.

Aaron

fear wrote:
Also I forgot to mention, I tried, just for fun, putting the first
power supply back in, and got the same results, but when I then turned
that switch off, I heard a 'pop' and some smoke came out of the power
supply box

When the PS "popped" it could have wiped out the ram, mb, cpu and
anything connected to the buses. You need a know good complete
system with like hardware to test each part one at a time.

charles.....

(Aaron) wrote in message . com...

(fear) wrote in message om...

I went to add some more memory to one of my PCs today, trying some
extra memory chip not knowing what kinds they were...the first one
worked fine but I found out it was on 16mb, so I turned everything
off, and installed the next one figuring it would more than likely be
at least a 64, but when I went to turn the machine back on, nothing
happened. No beep, no light comes on, nothing. When I flip the switch
on the power supply itself, the fans come on for a few seconds and
then stop. I switched the power supply with another that I *think* is
still good, and had the same results. I've checked every connection,
but can't imagine what went wrong. Could I have 2 bad power supplies
that just happened to go bad as I was installing a memory card? Did I
screw something up somehow? I'm not even sure what to look for at this
point.


Greg

I believe my friend had a problem similar to this before. It turned
out his motherboard was shorting to the case, through the screw
attachment points. I guess he had to get some plastic washers to
isolate it. Not sure why changing memory modules would cause this to
come around though. I'm hesitant to say this is the cause, but maybe
something similar, because his fan would only run for a few seconds
also.

Aaron