[wellylug] OT: 4.6V on the 5V rail is indicative of....?
Eugene Van Wyk
Eugene.VanWyk at 4rf.com
Mon Mar 29 09:38:30 NZST 2004
Hi
There have been issues with the voltage detection and related software
as indicated by previous posts. The only sure way would be to get a
voltmeter in there. If you look at one of the hard disk/cd power
connectors you should get 12V or close too, as well as 5V. The 5V rail
is generally higher than 5V but not by too much, while the 12V may be
slightly high or slightly low.
Another possibility is too light a load on the 5V circuit - very
unlikely though, and it will depend on the specific control circuitry
inside the supply.
Is this the same machine that recently had the 400W supply pack up? If
so, you probably have an overcurrent situation somewhere in there.
Eugene van Wyk
Test Development Engineer
4RF Communications Ltd
26 Glover St
Ngauranga
Wellington
New Zealand
-----Original Message-----
From: Damon Lynch [mailto:damon at photo.geek.nz]
Sent: Monday, 29 March 2004 8:30 a.m.
To: wellylug
Subject: [wellylug] OT: 4.6V on the 5V rail is indicative of....?
Hi,
Apologies if this is too off-topic. If a motherboard is indicating it
is getting only 4.6V instead of 5V, is this generally caused by the
power supply unit failing to deliver the needed power? And if so, is
that something that occasionally happens to a PSU, or should I be
looking into the quality of the power coming out of the wall power
socket (it's a 1930s house)? It sure makes the PC unstable!
Thanks :)
Damon
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