Of late I've been reading reveiws on the web by such 'esteemed' hardware reveiwers as Anand, Kyle Bennet (@ HardOCP), Sharky, etc, etc, etc.
& they all make the same bloody error when reveiwing (mainly Athlon) VIA boards. They complain about how many of them (mainly Aopen & Gigabyte designs) have only one backplane Serial connector soldered on the motherboards, leaving blank space where the 2nd one would be, meaning that if one wants to utilise the 2nd serial connector one has to connect a ribbin cable to a set of pin headers.
Well there's a bloody reason for this. The new VIA KM northbridge ('M' for 'multimedia', it has a S3 Savage video chipset built in) is designed to be pin compatible to the old VIA KT133 northbridge, if KT133 boards are designed from the beginning to be updated with the KM133 chipset.
Consequently many of those (mainly OEM) VIA KT133 boards put out by Asus, Aopen & Gagabyte, etc that have a missing serial connector on the backplaned are designed so those board designs can be updated on the production-line (when the KM133 chipset is avaliable), just by simply the soldering of the multimedia savy KM133 northbridge in the place of the KT133 & buy the soldering of a VGA connector in that blank space, where normally the 2nd serial connector resides on most ATX boards.
Yes, that's right, that blank space underneath the parrallel port is for a VGA connector not a serial connector. Hence if any of those reveiwers had bothered to study the PCB, where that missing serial port is s'pose to be they'd notice that 15 solder spots/holes, not 9 as it would be if a serial connector was spose to be soldered there.
Now why would all these big Taiwanese OEMs design some of their KT133 boards that way? It's simple really 'economies of scale', they can use the same board design & production line for both the KT133 & KM133 versions.
Even a couple of KA133 boards like the Aopen AK72 was designed like that (a mate of mine has one, where the 2nd serial connector is missing from the backplane & there are 25 solder points on the PCB in its place, although aparently early revisions of the KA72 had both serial connectors soldered on).
As the KM northbridge will cost not much more than the KT northbridge I'd assume that virtually all will eventually have the KM northbridge & it will be up to the owner whether to utilise the onboard video (or sound), as the boards will still have AGP slots. It will simply be a case of switching the on-board video (or sound), on or off, via dip switches, jumpers or the BIOS.
& they all make the same bloody error when reveiwing (mainly Athlon) VIA boards. They complain about how many of them (mainly Aopen & Gigabyte designs) have only one backplane Serial connector soldered on the motherboards, leaving blank space where the 2nd one would be, meaning that if one wants to utilise the 2nd serial connector one has to connect a ribbin cable to a set of pin headers.
Well there's a bloody reason for this. The new VIA KM northbridge ('M' for 'multimedia', it has a S3 Savage video chipset built in) is designed to be pin compatible to the old VIA KT133 northbridge, if KT133 boards are designed from the beginning to be updated with the KM133 chipset.
Consequently many of those (mainly OEM) VIA KT133 boards put out by Asus, Aopen & Gagabyte, etc that have a missing serial connector on the backplaned are designed so those board designs can be updated on the production-line (when the KM133 chipset is avaliable), just by simply the soldering of the multimedia savy KM133 northbridge in the place of the KT133 & buy the soldering of a VGA connector in that blank space, where normally the 2nd serial connector resides on most ATX boards.
Yes, that's right, that blank space underneath the parrallel port is for a VGA connector not a serial connector. Hence if any of those reveiwers had bothered to study the PCB, where that missing serial port is s'pose to be they'd notice that 15 solder spots/holes, not 9 as it would be if a serial connector was spose to be soldered there.
Now why would all these big Taiwanese OEMs design some of their KT133 boards that way? It's simple really 'economies of scale', they can use the same board design & production line for both the KT133 & KM133 versions.
Even a couple of KA133 boards like the Aopen AK72 was designed like that (a mate of mine has one, where the 2nd serial connector is missing from the backplane & there are 25 solder points on the PCB in its place, although aparently early revisions of the KA72 had both serial connectors soldered on).
As the KM northbridge will cost not much more than the KT northbridge I'd assume that virtually all will eventually have the KM northbridge & it will be up to the owner whether to utilise the onboard video (or sound), as the boards will still have AGP slots. It will simply be a case of switching the on-board video (or sound), on or off, via dip switches, jumpers or the BIOS.