I am wanting to purchase RAM for my Mac Pro 1,1. I am looking at some online right now... "Hynix 16GB (4X4GB) DDR2 PC2-5300 667MHz 240pin ECC REG SERVER HYMP351P72AMP4-Y5" These modules don't have heat sinks on them, though. Would these sticks get too hot in my Mac Pro? I sort of wanted 4x 4GB sticks, rather than 8x 2GB sticks… but, sadly, the only listings with RAM that has heat sinks are the 8x 2GB-RAM listings. Also, does it have to be a special, Apple-branded heat sink, or is it okay if it's the common type of heat sink. -Thanks (I want to combine this RAM with my existing 4x 1GB sticks of RAM. I believe these ones have heat sinks.