Tom's Hardware > Forum > Motherboards & Memory > Memory > Overclock/memory problems
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Hi,

I have a BIG problem with overclocking my CPU....2 days ago I upgraded my DDR memory from 2*512MB(PQI DDR400 CL2.5) to 2*1GB(Kingston KVR400X64C3A/1G 2x200mhz CL3). In both cases the CPU speed is same (2.8 Ghz)...in the case of 2*512 i had to lower memory speed from 400 to 333 mhz and HyperTransfer from 5x to 4x. With the new memory, the only way to overclock is to lover memory to 266 memory speed....not 333 like in the old case. Tests results shows that the old 2*512
performs better than the new 2*1GB. Something is not right!!!! Is there an extra setting for the new memory....CL Timings, or voltage?
Please.....need help.

My system:

DUAL-CORE Opteron 165 Toledo S939 OC 2.8 GHZ (1.485v/29,5°C)
MB ASUS A8N-SLI SE Skt939, NF4-SLI
2*1GB Kingston KVR400X64C3A/1G 2x200mhz CL3
2*160 MAXTOR(Seagate)STM3160812AS = nVidia stripe 298.09G
2*8600 GT SLI mode
ASUS DRW 1814BLT SATA1
HL-DT-ST CD/RW
SB Audigy SE

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