Internal IDE DVD Burner

Mikkel L. Ellertson mikkel at infinity-ltd.com
Wed Jan 21 02:13:48 UTC 2009


Robin Laing wrote:
> Actually, the sensors which are on the mother board can only tell the
> correct voltage if they are accurate.  In my case, the sensors were
> reading +5.4V when the DVM was telling me +4.7 at the mother board
> connector.
> 
> Reading through the sensors setup I found that the sensors are not
> accurate.  I was not impressed in this day and age.  If I had not had
> issues with a new DVD burner I would never had checked the voltages
> because the BIOS reading was giving me a green light.
> 
> I should compare my new system to the sensors reading.
> 
One other thing to keep in mind - the DVM reading may also be off.
You may need to have the DVM calibrated - most low priced DVMs are
not calibrated from the factory. Even high-end DVMs should be
calibrated if high accuracy is important. They should also be
calibrated periodically to make sure they are still reading
correctly. I have seen that much variation in brand new DVMs just
out of the packaging. I am surprised that the motherboard sensors
are as accurate as they are. As far as I know, they are not
calibrated at all. (Maybe server motherboards, but not consumer
quality boards.)

Just for fun, grab 3 DVMs at random, and hook all 3 to the same
source, and see if they read the same.

Mikkel
-- 

  Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

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