Personally it is a old graphic card so the chances of a fix are rare, and it could be used as a excuse to upgrade by the sound of it your on AGP format and there is alot of cards going reasonable now which would seriously give you more power then a ti 4600.
As for the clips no idea mate, but for gpu temp, I wonder if a temp sensor from
www.maplins.co.uk may do the trick?
Without you having the box unless its written on your GPU I cannot see you knowing who made that card, as it could be OCUK,BFG,Nvidia,Fred Elliot,Tony Blair, or anyone really.

to the site BTW.