G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model (F3-12800CL9D-8GBRL) at Amazon.com
Hynix 4GB PC3-10600 DDR3 1333MHz HMT351S6CFR8C-H9 at Amazon.com
Amazon.com: SK Hynix 4GB 2RX8 PC3-12800E 1600MHZ HMT351U7CFR8C-PB 00D4957 00D4955 47J0180 compatible with HP ProLiant ML310e Gen8 Server HP ProLiant ML350e Gen8 Server HP ProLiant ML350p Gen8 Server HP ProLiant SL230s Gen8