so i just got my second stick of ram http://resellerratings.dealtime.com/xPO-Kingston_512_MB_DDR_SDRAM_KVR400X64C25_512 and maybe i installed it wrong in the mobo but im pretty sure i didnt ! http://resellerratings.dealtime.com/xPC-Asustek_MBOARD_1700_3000_5_PCI_1_8XAGP_UDMA_133_SERIAL_ATA_RAID_S and all the diagnostic progs i have tell me im running in dual channel mode but it still sez 200mhz ..... General Information : DIMM A1 (RAS 1, RAS 0) : 512 (Double Bank) - DIMM, SDRAM DIMM A2 : Empty DIMM B1 (RAS 5, RAS 4) : 512 (Double Bank) - DIMM, SDRAM DIMM B2 : Empty Memory Controller Information : Memory Controller : SIMM, DIMM, SDRAM Number of connectors : 4 Max. Module Size : 1000 MB Max. Memory Size : 4000 MB Supported Speed : 70ns, 60ns, 50ns Supported Voltages : 2.9v Error Detection Method : No Error Correction Capability : Unspecified Current/Supported Interleave : 1-way/1-way Chipset Information : Type : DDR-SDRAM PC3400 Frequency : 210 MHz FSB/DRAM Multiplier : 1/1x Channels : Dual Mode : Linear ECC Diagnostic : No CAS Latency (tCL) : 2.5 clocks RAS to CAS (tRCD) : 3 clocks RAS Precharge (tRP) : 3 clocks Cycle Time (tRAS) : 8 clocks Information EEPROM (DIMM A1) : Manufacturer : Kingston Part Number : K Serial Number : 0CFFFFFF Type : DDR-SDRAM PC3200 (200 MHz) Size : 512 MB (2 rows, 4 banks) Module Buffered : No Module Registered : No Width : 64-bit Error Correction Capability : No Max. Burst Length : 8 Refresh : Reduced (.5x)7.8 µs, Self Refresh Voltage : SSTL 2.5v Supported Frequencies : 166 MHz, 200 MHz CAS Latency (tCL) : 2 clocks @166 MHz, 2.5 clocks @200 MHz RAS to CAS (tRCD) : 3 clocks @166 MHz, 3 clocks @200 MHz RAS Precharge (tRP) : 3 clocks @166 MHz, 3 clocks @200 MHz Cycle Time (tRAS) : 7 clocks @166 MHz, 8 clocks @200 MHz Information EEPROM (DIMM B1) : Manufacturer : Kingston Part Number : K Serial Number : 7A15422B Type : DDR-SDRAM PC3200 (200 MHz) Size : 512 MB (2 rows, 4 banks) Module Buffered : No Module Registered : No Width : 64-bit Error Correction Capability : No Max. Burst Length : 8 Refresh : Reduced (.5x)7.8 µs, Self Refresh Voltage : SSTL 2.5v Supported Frequencies : 166 MHz, 200 MHz CAS Latency (tCL) : 2 clocks @166 MHz, 2.5 clocks @200 MHz RAS to CAS (tRCD) : 3 clocks @166 MHz, 3 clocks @200 MHz RAS Precharge (tRP) : 3 clocks @166 MHz, 3 clocks @200 MHz Cycle Time (tRAS) : 7 clocks @166 MHz, 8 clocks @200 MHz now.. am i to think that im get'n 200+200=400mhz ? or did i really put it in the comp wrong ? any and all feed back is gr8 ! -gabe

"now.. am i to think that im get'n 200+200=400mhz ? or did i really put it in the comp wrong ?" Lets see 200Mhz X 2Channels = 400Mhz Sounds right to me 808

What does DDR stand for? 200mhz is the setting for PC3200 RAM, the rate is DOUBLED! 2 x 200mhz = 400mhz. PC1600 runs at 100mhz PC2100 runs at 133mhz PC2700 runs at 166mhz PC3200 runs at 200mhz Dual channel is something altogether different. It has nothing to do with Mhz, it has to do with data transfer rates. If you have 2 sticks of 512mb PC3200 running in single channel mode, it would be the equivilent of having a single 1GB stick of PC3200. In dual channel mode, the same two sticks would be treated as a single 1GB stick of PC6400.

JAM is right dual channel is 200 x 2. Tip for you you can not put the memory in wrong! All you have to do is match the slots you have four banks you should be able to use banks 1 & 2 or 1 & 3 check the specs on your motherboard. 1 & 3 would be better for cooling.

Jam's right & I'm wrong Doubling the data rate by running 2 X 200Mhz chips in parallel has the same "affect" as a single chip @ 400Mhz but only the data rate is doubled, not the frequency. 808