Just found a new u-boot from the polish team. Not tested by me yet...
http://pkteam.pl/viewtopic.php?f=24&t=4339

und soweit der Google Übersetzer stimmt wird mit dem uboot nicht übertaktet sondern um 15mhz untertaktet, wodurch der tuner stabiler und nicht so warm werden soll.Our modification is based on replacing those 2 chips by double sized ones. We successfully replaced with Hynix HY5DU121622CTP chips and even by some "noname" chips from a SO-DIMM plate, which has a similar organization (see Hynix data sheet for the required organization).