What parts .....

9

98 Guy

What parts of a computer uses +5V (was: What parts .....)

I replaced the subject line with a more informative substitute. Why
this wasn't done in the first place is beyond me.

b11_ wrote:

> What parts of the computer uses the power supply +5V?


The +5V supply is the most used supply from an amperage point of
view. Pentium 4's use massive amounts of +5V (it gets converted down
to 3V and lower depending on the exact model). Hard drives, optical
drives, floppy drives also need a +5V supply (in addition to a 12V
supply, which is the next most-used supply in terms of amperage).
 
B

b11_

RE: What parts of a computer uses +5V (was: What parts .....)

According to the software Speedfan, the +5V is actually 6.92. Your opinion
please.
_______________________________________________________________
"98 Guy" wrote:

> I replaced the subject line with a more informative substitute. Why
> this wasn't done in the first place is beyond me.
>
> b11_ wrote:
>
> > What parts of the computer uses the power supply +5V?

>
> The +5V supply is the most used supply from an amperage point of
> view. Pentium 4's use massive amounts of +5V (it gets converted down
> to 3V and lower depending on the exact model). Hard drives, optical
> drives, floppy drives also need a +5V supply (in addition to a 12V
> supply, which is the next most-used supply in terms of amperage).
>
 
T

thanatoid

RE: What parts of a computer uses +5V (was: What parts .....)

=?Utf-8?B?YjExXw==?= <b11@discussions.microsoft.com> wrote in
news:23F1CB88-C11F-437D-8C2C-6089DEE9A9F5@microsoft.com:

> According to the software Speedfan, the +5V is actually
> 6.92. Your opinion please.
> ____________________________________________________________
> ___ "98 Guy" wrote:
>
>> I replaced the subject line with a more informative
>> substitute. Why this wasn't done in the first place is
>> beyond me.
>>
>> b11_ wrote:
>>
>> > What parts of the computer uses the power supply +5V?

>>
>> The +5V supply is the most used supply from an amperage
>> point of view. Pentium 4's use massive amounts of +5V (it
>> gets converted down to 3V and lower depending on the exact
>> model). Hard drives, optical drives, floppy drives also
>> need a +5V supply (in addition to a 12V supply, which is
>> the next most-used supply in terms of amperage).
>>

>


+6.92V or -6.92V ?
 
C

Curt Christianson

b11,

I have know idea what possess you to perhaps build you own computer, or
upgrade upon, or both.

Be prepared for a number of small failures along the way,(some not so
small), but they *are * the stuff of learning, **not** successes.

A number of years ago people were purchasing replacement Dell PS, or maybe
purchasing replacement Dell mobo's. What nobody ever thought to tell the
consumer is "sure I'll sell you a new PS..Oh, forgot to tell you the mobo
*would not* electrically fit. The power connectors, everything appeared to
be identical

The moral is, it took a number of extremely trained eyes in the field to
discovery the Dell had simply changed a pin-out. C'mon, would have thunk
it.

In Dell's defense, after many a fried mobo, power supply, or BOTH, Dell got
their act back together, and one again are selling parts that "should" go
together , go together once more.

If you have not already done so, go to your local Barnes&Knoble, and Buy a
copy of Scott(sic) Muellers' "Upgrading and repairing PC's. By now it is
probably getting close to the 20 edition. It's not cheap $55-$65 usd. The
material, the theory listedtherin *never* becomes wrong--just a little
dated.

--
HTH,
Curt

Windows Support Center
www.aumha.org
Practically Nerded,...
http://dundats.mvps.org/Index.htm

"b11_" <b11@discussions.microsoft.com> wrote in message
news:937840D1-C69A-4328-BA1D-5274137E8DA7@microsoft.com...
| What parts of the computer uses the power supply +5V?
 
J

Jeff Richards

Re: What parts of a computer uses +5V (was: What parts .....)

The usual tolerance that is acceptable is 10% - in this case that means 4.5v
to 5.5v. 6.92v, if it's real, is well out of spec.

Use a decent digital multimeter to test it a various points around the
circuitry.
--
Jeff Richards
MS MVP (Windows - Shell/User)
"b11_" <b11@discussions.microsoft.com> wrote in message
news:23F1CB88-C11F-437D-8C2C-6089DEE9A9F5@microsoft.com...
> According to the software Speedfan, the +5V is actually 6.92. Your opinion
> please.
> _______________________________________________________________
 
C

Curt Christianson

Re: What parts of a computer uses +5V (was: What parts .....)

I know Jeff had probably forgotten,

But be sure to measure voltages with a VTVM (if you can still find one), or
better get a DMM(digital multi-multimeter). It's essential when measuring
voltages *that* small, that the internal resistance of the meter can throw
the accuracy quite a ways off. A good rule of thumb for DMM's is 15
megohm/volt input impedance. I purchased a little gem of a knock around
DMM, available at most automotive section, (Target, Wal_mart) for under
$20USD

--
HTH,
Curt

Windows Support Center
www.aumha.org
Practically Nerded,...
http://dundats.mvps.org/Index.htm

"Jeff Richards" <JRichards@msn.com.au> wrote in message
news:uNu21Q0BIHA.2268@TK2MSFTNGP04.phx.gbl...
| The usual tolerance that is acceptable is 10% - in this case that means
4.5v
| to 5.5v. 6.92v, if it's real, is well out of spec.
|
| Use a decent digital multimeter to test it a various points around the
| circuitry.
| --
| Jeff Richards
| MS MVP (Windows - Shell/User)
| "b11_" <b11@discussions.microsoft.com> wrote in message
| news:23F1CB88-C11F-437D-8C2C-6089DEE9A9F5@microsoft.com...
| > According to the software Speedfan, the +5V is actually 6.92. Your
opinion
| > please.
| > _______________________________________________________________
|
|
 
T

thanatoid

Re: What parts of a computer uses +5V (was: What parts .....)

"Jeff Richards" <JRichards@msn.com.au> wrote in
news:uNu21Q0BIHA.2268@TK2MSFTNGP04.phx.gbl:

> The usual tolerance that is acceptable is 10% - in this
> case that means 4.5v to 5.5v. 6.92v, if it's real, is well
> out of spec.
>
> Use a decent digital multimeter to test it a various points
> around the circuitry.


I can NOT believe no one found my joke funny. :-(

AFA the OP, I think it's a perfect case of "a little knowledge
is dangerous thing". But he is apparently quite determined to
blow up his machines.
 
J

Jeff Richards

Re: What parts of a computer uses +5V (was: What parts .....)

You're right!. Sorry, but I completely missed it.

Obviously Speedfan is measuring the potential between the +5v and the +12v
rails. How on earth he arranged things to end up like that I can not guess.
--
Jeff Richards
MS MVP (Windows - Shell/User)
"thanatoid" <waiting@the.exit.invalid> wrote in message
news:Xns99C098B2E6B5Ethanexit@66.250.146.158...
> snip <
>
> I can NOT believe no one found my joke funny. :-(
>
> AFA the OP, I think it's a perfect case of "a little knowledge
> is dangerous thing". But he is apparently quite determined to
> blow up his machines.
 

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