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Date:      Mon, 1 Jan 1996 13:14:50 -0500 (EST)
From:      Jeff Tyler <jeff@jthome.com>
To:        hardware@FreeBSD.org
Subject:   Problems with a DX4/100 in a Micronics JX30WB VL/ISA mb (more)
Message-ID:  <199601011814.NAA00529@jthome.jthome.com>

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Well a bit more fussing around with the board (changing the external cache
to write through) seems to have stabilized things a bit.  Before doing this
I was getting random panics with an error msg of "I/O channel check, likely
hardware failure" followed by a lockup.  Still clocking at 25Mhz, I'm
afraid to try 33Meg.  Thanks to those who wrote to explain that a DX4
triples the clock, why don't they just call the blasted thing a DX3 ? :-)

Before setting cache to write through I could crash the board on a iozone 20
every time. Now I can run iozone with any file size with no problems.

Anyone got any thoughts on whether this board is broken or just plain not
capable of handeling a DX4 at full speed ?  It came in Sat and of course
MDCs tech support doesn't work on Sat :-)  I've been fiddeling ever since.
Planning on calling them tomorow, not sure as to whether I should just send
this thing back and demand a new board or just accept that one of their
"certified" configurations isn't :-(

JT

"Jeff Tyler says:"
> From owner-freebsd-hardware@freefall.freebsd.org  Sun Dec 31 12:57:52 1995
> From: Jeff Tyler <jeff@jthome.com>
> Message-Id: <199512311732.MAA01539@jthome.jthome.com>
> Subject: Problems with a DX4/100 in a Micronics JX30WB VL/ISA mb
> To: hardware@FreeBSD.org
> Date: Sun, 31 Dec 1995 12:32:03 -0500 (EST)
> Organization: Never touch the stuff ...
> Location: Eight miles from the rude bridge that arched the flow ...
> Phone: (508)-440-8624
> System:  FreeBSD jthome.jthome.com 2.0.5-RELEASE
> X-Mailer: ELM [version 2.4 PL24]
> Content-Type: text
> Sender: owner-hardware@FreeBSD.org
> Precedence: bulk
> 
> Hi,
> 	I just upgraded to a dx4/100 on a Micronics JX30WB vl/isa
> motherboard and I've had some problems getting the system to stabilize.  At
> first I couldn't even get the board to stay up long enough to let me into
> the CMOS setup utility, it was locking up right and left.  A bit of
> checking showed that the clock speed jumper (w10) was in the 33Mhz position
> so I moved it to the 25Mhz strapping.  Things got a bit better after that
> but I was still getting lockups and crashes under both DOS and Freebsd.
> Cooking the board overnight seems to have helped quite a bit, I've only had
> one crash this morning but I did have that one.  The error msg is something
> like: I/O card parity interrupt at F000:FFF0 right after the panic message.
> The I get a line offering me the choice of S or R where S turns of the NMI
> and r reboots but the machine is locked up tight at that point forcing a
> power cycle.  I only have an adaptec 1542CF, a 16bit ethernet card and an
> old ISA vga card in this puppy and I can't seem to find any interrupt or DMA
> conflicts (all cards set the same way that they were in the old 386 I
> upgraded from).  Another very strange thing, after stepping the speed down
> to 25 Mhz, the CMOS setup reports a dx4/75 ! Not a 4dx/100.  Very strange.
> I have checked cpu select jumpers, they seem to be ok for a dx4.  
> 
> So I'm very confused at this point, any help or suggestions will be
> gratefully received here :-) dmsg output follows:
> 
> 
> FreeBSD 2.0.5-RELEASE #0: Sat Dec 30 16:18:06 EST 1995
>     root@:/usr/src/sys/compile/JTHOME
> CPU: i486 DX4 (486-class CPU)
>   Origin = "GenuineIntel"  Id = 0x480  Stepping=0
>   Features=0x3<FPU,VME>
> real memory  = 33161216 (8096 pages)
> avail memory = 30683136 (7491 pages)
> Probing for devices on the ISA bus:
> sc0 at 0x60-0x6f irq 1 on motherboard
> sc0: VGA color <16 virtual consoles, flags=0x0>
> ed0 at 0x280-0x29f irq 5 maddr 0xd8000 msize 16384 on isa
> ed0: address 00:00:c0:a5:59:5b, type WD8013EPC (16 bit) 
> bpf: ed0 attached
> ed1 not probed due to maddr conflict with ed0 at 0xd8000
> sio0 at 0x3f8-0x3ff irq 4 on isa
> sio0: type 16550A
> sio1 at 0x2f8-0x2ff irq 3 on isa
> sio1: type 16550A
> sio2 not found at 0x3e8
> sio3 not found at 0x2e8
> lpt0 at 0x378-0x37f irq 7 on isa
> lpt0: Interrupt-driven port
> lp0: TCP/IP capable interface
> lpt1 not found at 0xffffffff
> lpt2 not found at 0xffffffff
> fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
> fdc0: NEC 72065B
> fd0: 1.44MB 3.5in
> wdc0 not found at 0x1f0
> wdc1 not found at 0x170
> bt0 not found at 0x330
> uha0 not found at 0x330
> ahc1 not found
> ahb0 not found
> aha0: AHA-1542CF BIOS v2.01-VB.0, enabling mailbox, enabling residuals
> aha0: reading board settings, dma=5 int=11  (bus speed defaulted)
> aha0 at 0x330-0x333 irq 11 drq 5 on isa
> aha0 waiting for scsi devices to settle
> (aha0:0:0): "SEAGATE ST31200N 8648" type 0 fixed SCSI 2
> sd0(aha0:0:0): Direct-Access 1006MB (2061108 512 byte sectors)
> (aha0:1:0): "SEAGATE ST31230N 0170" type 0 fixed SCSI 2
> sd1(aha0:1:0): Direct-Access 1010MB (2069860 512 byte sectors)
> (aha0:2:0): "QUANTUM FIREBALL1080S 1Q09" type 0 fixed SCSI 2
> sd2(aha0:2:0): Direct-Access 1042MB (2134305 512 byte sectors)
> (aha0:3:0): "ARCHIVE VIPER 150  21247 -005" type 1 removable SCSI 1
> st0(aha0:3:0): Sequential-Access st0: Archive  Viper 150 is a known rogue
> density code 0x0,  drive empty
> (aha0:4:0): "DEC RRD42   (C) DEC 4.3d" type 5 removable SCSI 2
> cd0(aha0:4:0): CD-ROM cd present.[1057708 x 512 byte records]
> aic0 not found at 0x340
> nca0 not found at 0x1f88
> nca1 not found at 0x350
> sea0 not found
> scd0 not found at 0x230
> ie0 not found at 0x360
> ep0 not found at 0x300
> ix0 not found at 0x300
> le0: no board found at 0x300
> le0 not found at 0x300
> lnc0 not probed due to I/O address conflict with ed0 at 0x280
> lnc1 not found at 0x300
> ze0 not probed due to maddr conflict with ed0 at 0xd8000
> zp0 not probed due to maddr conflict with ed0 at 0xd8000
> npx0 on motherboard
> npx0: INT 16 interface
> bpf: lo0 attached
> bpf: sl0 attached
> bpf: tun0 attached
> -- 
> ========================================================================
> |Jeff S. Tyler                             Pencom System Administration|
> |PSA all the way !                       [At Digital] 508-486-5369     |
> |jeff@jthome.com                    [Home phone/fax] 508-440-8624/8625 |
> |jtyler@pencom.com                  [Pager] 1-800-759-8888 249-5568    |
> | -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
> |Tis better to have hacked and crashed than never to have hacked at all|
> ========================================================================
> 
> 


-- 
========================================================================
|Jeff S. Tyler                             Pencom System Administration|
|PSA all the way !                       [At Digital] 508-486-5369     |
|jeff@jthome.com                    [Home phone/fax] 508-440-8624/8625 |
|jtyler@pencom.com                  [Pager] 1-800-759-8888 249-5568    |
| -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
|Tis better to have hacked and crashed than never to have hacked at all|
========================================================================



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