Re: Interesting hardware problem
- From: do_not_spam_me@xxxxxxxxxxx
- Date: 9 May 2006 06:30:10 -0700
Man-wai Chang wrote:
Motherboard: Asus CUBX
CPU: P3-700MHz
The board's PS/2 ports have died.
If I overclocked the CPU to 933MHz, BIOS reported 384M RAM.
If I didn't overclock, BIOS reported 512M RAM.
The possibilities:
RAM not fast enough
CPU not fast enough
CPU too hot
Power supply marginal
Voltage regulator for CPU marginal (worn electrolytic capacitors)
Voltage regulator for RAM marginal (worn electrolytic capacitors
Measure all voltages with a meter, including CPU voltage. The latter
may be difficult since the power transistors and diodes for its
regulator are right next to the CPU socket and possibly blocked by the
heatsink. If any electrolytic capacitors around the regulators are
bulging or leaking, replace all of them (not just the visibly defective
ones) in both of those circuits with a Japanese, American, or European
type made especially for high frequency switching applications (low
ESR). The 440BX is one of the best motherboard chipsets ever made,
and a board containing it is worth repairing if all you have to spend
is the cost of new capacitors and soldering and desoldering supplies.
.
- Follow-Ups:
- Re: Interesting hardware problem
- From: Man-wai Chang
- Re: Interesting hardware problem
- References:
- Interesting hardware problem
- From: Man-wai Chang
- Interesting hardware problem
- Prev by Date: Re: PCI Express
- Next by Date: Re: Interesting hardware problem
- Previous by thread: Re: Interesting hardware problem
- Next by thread: Re: Interesting hardware problem
- Index(es):
Relevant Pages
|
