04-15-2019
Thanks Wise,
I'm in Thailand (on the seaside) and we have great Apple service here.
Recently my MacBook Air 2013 died and I went to Apple and paid them a small fee (around $28 USD) to check it out. They did a full analysis (it would not power up at all) and their Apple techs told me the logic board was bad. They quoted around $600 to replace.
I took that MBA to some local repair shop and they fixed the logic board for about $200 dollars and it works great. That's much better than the $600 for a logic board or nearly $2000 for a new one I don't really need.
The only thing I don't look forward to is lugging the heavy MacPro up there, since it is a lot heavier and bulkier than my little MBAs.
This User Gave Thanks to Neo For This Post:
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SN(4) BSD Kernel Interfaces Manual SN(4)
NAME
sn -- National Semiconductor DP83932 (SONIC) based Ethernet device driver
SYNOPSIS
arc
sn0 at jazzio?
mac68k
sn* at obio?
sn* at nubus?
DESCRIPTION
The sn interface provides access to a 10 Mb/s Ethernet network via the National Semiconductor DP83932 (SONIC) Ethernet chip set.
Each of the host's network addresses is specified at boot time with an SIOCSIFADDR ioctl(2). The sn interface employs the address resolution
protocol described in arp(4) to dynamically map between Internet and Ethernet addresses on the local network.
HARDWARE
arc
The sn driver supports on-board JAZZ based SONIC interfaces found on Acer PICA and NEC machines.
mac68k
The sn driver is currently known to support the following NuBus cards:
o Apple LC Twisted-pair (part #820-0532-A) PDS card
o Cayman Gatorcard PDS
o Dayna DaynaPort/E30
In addition, the sn interface supports the following interfaces:
o on-board Ethernet for non-AV Quadras
o on-board Ethernet for 500-series PowerBooks
o Apple CS Ethernet Twisted-pair card for Comm Slot found on LC575, Quadra 630, LC630, and Performa 580.
DIAGNOSTICS
sn%d: transmit FIFO underrun
sn%d: receive FIFO overrun
sn%d: receive buffer exceeded
sn%d: receive buffers exhausted
sn%d: receive descriptors exhausted These messages indicate that the interface gets errors (due to heavy load etc.) and reinitialized.
SEE ALSO
arp(4), inet(4), netintro(4), ifconfig(8)
HISTORY
The sn interface for mac68k, which was derived from a driver for old NetBSD/pica port, first appeared in NetBSD 1.3.
Jason Thorpe has rewritten a new machine independent SONIC driver which uses bus_dma(9) and bus_space(9) APIs after NetBSD 1.5 release, and
NetBSD/arc has been switched to using the machine independent (MI) driver.
NetBSD/mac68k has also been switched to using the MI driver after the NetBSD 4.0 release.
BSD
May 16, 2009 BSD