Based on this product's specifications, here are some alternatives and similar models
CPU mounting kit SilentiumPC LGA 1700 AC2 for Spartan 4 / Grandis 3 (SPC325)
Summary description:
Mounting kit for SilentiumPC CPU coolers compatible with Intel LGA 1700 sockets, intended for Spartan 4 and Grandis 3 models. Delivered as model SPC325 (AC2), the kit contains required brackets and fasteners to retrofit or install these cooler models on LGA 1700 motherboards, enabling secure contact and proper cooler alignment for effective heat transfer.