Please help me to confirm which chipset of T43's FRU 27K9932

[madmatrix]

This is my 802.11 b/g Wireless mini PCI card FRU number of T43. I can't figure out which chipset is used in this card. Atheros?
I just wanna upgrade to support 108Mbps Mode...

[DIGITALgimpus]

Wireless MPCI cards
Intel PRO Wireless 2200BG Mini-PCI Adapter

As stated here

[wireless4laptop]

Your wifi card uses Intel chipset, 802.11b/g (Intel 2200bg).

You can find the details of IBM Atheros 802.11b/g, and 802.11a/b/g info from our links (just to have a sight, not must buy from us.)

both supporting Super G, 108M (your AP/Router should support 108M as well)


http://cgi.ebay.co.uk/IBM-802-11a-b-g-W ... dZViewItem

http://cgi.ebay.co.uk/IBM-Super-G-108M- ... dZViewItem

[madmatrix]

Thank you two very much! The information is very helpful. But can this intel wireless mini PCI card support 108mbps? I can't find anything about supporting SuperG mode in INTEL website.

[smugiri]

I do not think so, the 108mbps speed can only be obtained using a D-Link router and card combo where both router and card have "XtremeG" capability as documented here or on wireless card/router combos that are documented to have "Super G" capability like the IBM 802.11b/g Wireless LAN Mini PCI Adapter Card FRU: 91P7416 that wireless4laptop pointed you to in conjunction with a "SuperG" router - I found the D-Link DI-624 AirPlus Xtreme G Router and the Netgear WGT624 Router

They claim to use a combination of 5 techniques (Packet Bursting, Fast Frames, Hardware Compression, Hardware Encryption and Multi-Channel Bonding) to do this. The technique that really matters thoughis what they call "channel bonding" which is basically geek-speak for mating/pairing 2 radios on the router and on the wireless card sides to double the 54mbps speed of IEEE's 802.11g standard. The other techniques methinks are primarily used to make up for the fact that you cannot get a 100% increase in throughput bandwidth using the 2 radios alone due to overhead ( dividing load between radios, packetizing, etc etc )

I think the most interesing point to me in thedocumenationis the fact that D-Link uses the Atheros AR5002 chipset in these "XtremeG" routers and cards which makes me think that a pair of standard IBM wireless networking cards with the same chipset might be able to do this (get 108mbps performance ) with the right software drivers ( for a change, the IBM card beats out the Intel ... ) without having to go the SuperG route but I suspect that it would require some interesting modications to the assembly ( only one slot on the board for a wireless card unless you decide to use the PCMCIA/Expresscard slot for another card ) and writing some drivers...

The point might be moot though since you cannot use the full capability of the card without a 100% gigabit network ( from SuperG routers to Cat6 cabling to gigabit switches if you have switching ). Also important to remember is that most internet connections are 10mbps at best ... unless you happen to have an 0C912/DC192 (is this right?? ) up/down link sitting around waiting to be tapped ....

What do the techies out there think?

[DIGITALgimpus]

The cards IBM uses are certified cards and comply with standards.

Some Wifi products break these standards with proprietary addons for more speed.

You'd need a third party card for that.

[madmatrix]

The IBM card uses the same chip with D-link product. So it should support the SuperG. And I see many mini PCI card for SuperG in the eBay site.

Anyway as wireless4laptop said the Cat6 can support Gbps and most connect is less than 10Mbps, we needn't pay more attention on this wireless performance. But I still want to expect faster wireless solution to come out. Anybody knows how the UWB is developing now?