Messages in this thread | | | Date | Fri, 23 Oct 1998 12:49:57 -0500 (EST) | From | "Mark H. Wood" <> | Subject | Re: Kernel freeze on boot (.123-.125) in IDE init |
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On Fri, 23 Oct 1998, Torbjorn Lindgren wrote:
> On Fri, 23 Oct 1998, Andre M. Hedrick wrote: > > On Fri, 23 Oct 1998, Richard Lyons wrote: > > > The long story: I have an ASUS P2B-DS (100MHz 440BX AGPset Mainboard with > > > PIIX4E South Bridge) with a single Celeron 266MHz processor - hda is > > > a 2.1G Quantum Fireball, and there's a Promise Ultra33 plugged in with > > > 3 8.4G Fujitsu drives (MPC3084AT) as hde/hdg/hdh. It'd been running > [...] > > Since 'hda' is attached to the onboard ide-chipset and ide-pci.c: line 168 > > is only related to two chipsets (PDC20246 and AEC6210), I can not fully > > understand the relation between the two controller issues. > > > > Second, "PIIX4E South Bridge" ??? > > > > "PIIX4" :: sounds like Intel > > "South Bridge" :: sounds like Alladin > > It's the ISA/IDE part of the Intel chips he said he had, 440BX. > > A quick web-search will confirm that while Intel doesn't appear > to officially call the 82371AB PIIX4 controller "South Bridge", many > different independent source do call it this. Presumably it's some kind of > project name or something like that. (AltaVista Advanced Search, "South > Bridge" NEAR Intel)
The SouthBridge is a bus adapter gizmo that dumbs down PCI traffic to drive ISA slots. The NorthBridge is the gizmo that adapts the CPU's protocols to the PCI bus. Like this:
N CPU ) NorthBridge PCI bus ---------------------------------------------- ^ PCI PCI \ PCI PCI | periph periph | periph periph V / SouthBridge ISA bus ____________________ ISA ISA ISA S periph periph periph
The names NorthBridge/SouthBridge appear to be PCI engineering jargon rather than official product names.
The PIIX4 has lots of other goop in it such as IDE, USB, and so on.
-- Mark H. Wood, Lead System Programmer mwood@IUPUI.Edu Some things are not improved when made "graphical". Imagine how crude Kilmer's "Trees" would be if reduced to comic-book form.
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