Check this list for what chips your RAM uses

Corsair
XMS-PC2700C2 Rev1.1 (2-3-3-6-1T) --chip--> maybe Winbond BH-6/Samsung TCB3
XMS-PC2700C2 Rev1.2 (2-3-3-6-1T) --chip--> Winbond CH-6
XMS-PC2700C2 Rev1.3 (2-3-3-6-1T) --chip--> Mosel Vitelic (6ns?)
XMS-PC2700C2 Rev2.1 (2-3-3-6-1T) --chip--> Micron (6ns rev B)/Samsung TCB3
XMS-PC2700LL Rev1.1 (2-2-2-6-1T) --chip--> Winbond BH-6
XMS-PC2700LL Rev1.2 (2-2-2-6-1T) --chip--> Winbond CH-6
XMS-PC3000C2 Rev1.1 (2-3-3-6-1T) --chip--> Samsung TCB3/Micron (6ns rev B) and few Winbond BH-6
XMS-PC3000C2 Rev2.1 (2-3-3-6-1T) --chip--> should Winbond BH-6
XMS-PC3200C2 Rev1.0 (2-3-3-6-1T) --chip--> Winbond CH-5
XMS-PC3200C2 Rev1.1/2.1 (2-3-3-6-1T) --chip--> Winbond BH-6
XMS-PC3200C2 Rev1.2/2.2 (2-3-3-6-1T) --chip--> Winbond CH-6
XMS-PC3200C2 Rev1.3 (2-2-2-5-1T) --chip--> Winbond UTT ?
XMS-PC3200C2 Rev1.4 (2-2-2-5-1T) --chip--> Mosel Vitelic 5ns ~ Brainpower PCB
XMS-PC3200C2 Rev1.5 (2-2-2-5-1T) --chip--> Winbond New BH-5 ~ Brainpower PCB
XMS-PC3200C2 Rev1.6 (2-2-2-5-1T) --chip--> Winbond UTT ~ Brainpower PCB
XMS-PC3200C2 Rev1.7 (2-2-2-5-1T) --chip--> Winbond New BH-5\UTT ~ Brainpower PCB ?
XMS-PC3200C2 Rev3.1 (2-3-3-6-1T) --chip--> Infineon B-5
XMS-PC3200C2 Rev4.1 (2-3-3-6-1T) --chip--> Samsung TCCD
XMS-PC3200C2 Rev4.2 (2-3-3-6-1T) --chip--> Samsung TCCD & TCC5
XMS-PC3200C2 Rev4.3 (2-3-3-6-1T) --chip--> Samsung TCCD & TCC5 (Rev. F) ~ Brainpower PCB
XMS-PC3200C2 Rev5.1/6.1 (2-3-3-6-1T) --chip--> Mosel Vitelic 5ns
XMS-PC3200LL Rev1.1/2.1 (2-2-2-6-1T) --chip--> Winbond BH-5
XMS-PC3200LL Rev1.2/2.2 (2-3-2-6-1T) --chip--> Winbond CH-5
XMS-PC3200LL Rev3.1 (2-3-2-6-1T) --chip--> Infineon B-5
XMS-PC3200XL/XLPT Rev1.1 (2-2-2-5-1T) --chip--> Samsung TCCD
XMS-PC3200XL/XLPT Rev1.2 (2-2-2-5-1T) --chip--> Samsung TCCD ~ Brainpower PCB
XMS-PC3500C2 Rev1.1 (2-3-3-7-1T) --chip--> Winbond BH-5
XMS-PC3700 Rev1.1(3-4-4-8-1T) --chip--> Samsung TCCC
XMS-PC4000 Rev1.1 (3-4-4-8-1T) --chip--> Hynix D43
XMS-PC4000 Rev3.1 (3-4-4-8) --chip--> Samsung TCCC
XMS-PC4400 Rev1.1 (3-4-4-8-1T) --chip--> Hynix D5
XMS-PC4400C25 (2.5-4-4-8-1T) --chip--> Samsung TCCD ~ Brainpower PCB