Asus P5P41T LE User Manual - Page 23

1.7.2 Memory configurations You may install 512MB, 1GB, 2GB, and 4GB unbuffered non‑ECC DDR3 DIMMs into the DIMM sockets. • Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor. • Due to the memory address limitation on 32-bit Windows® OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. For effective use of memory, we recommend that you do any of the following: U�s�e��a��m�a�x�i�m�u�m��o��f �3�G�B��s�y�s�te�m���m�e�m��o�r�y�i�f �y�o�u�a�r�e��u�s�in�g��a�3�2�-�b�i�t �W�i�n�d�o�w��s® OS. - Install a 64-bit �W�i�nd�o�w��s® OS when you want to install 4GB or more memory on the motherboard. • This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less. • The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. • For system stability, use a more efficient cooling system to support a full memory load (2 DIMMs) or overclocking conditions. P5P41T LE Motherboard Qualified Vendors Lists (QVL) DDR3-1333 MHz capability Vendor Part No. Size SS/ DS Brand Chip NO. A-Data A-Data A-Data A-Data Apacer Apacer Corsair Corsair Corsair Corsair Corsair Crucial Crucial Crucial Crucial Crucial Crucial Crucial Crucial AD31333001GOU 1024MB SS A-Data AD30908C8D-151C E0906 AD31333G001GOU 3072MB(Kit of 3) SS N/A Heat-Sink Package AD31333002GOU 2048MB DS A-Data AD30908C8D-151C E0903 AD31333G002GMU 2048MB DS N/A Heat-Sink Package 78.01GC6.9L0 1024MB SS Apacer AM5D5808AEWSBG0914E 78.A1GC6.9L1 2048MB DS Apacer AM5D5808AEWSBG0908D CM3X1024-1333C9DHX 1024MB SS N/A Heat-Sink Package CM3X1024-1333C9 1024MB SS N/A Heat-Sink Package TR3X3G1333C9 3072MB(Kit of 3) SS N/A Heat-Sink Package CM3X1024-1333C9DHX 1024MB DS Corsair Heat-Sink Package CM3X2048-1333C9DHX 2048MB DS N/A Heat-Sink Package CT12864BA1339.8FF 1024MB SS Micron 9FF22D9KPT BL12864TA1336.8SFB1 2048MB(Kit of 2) SS N/A Heat-Sink Package CT12864BA1339.8SFD 3072MB(Kit of 3) SS Micron 8XD22D9JNM CT25664BA1339.16FF 2048MB DS Micron 9KF27D9KPT BL25664ABA1336.16SFB1 4096MB(Kit of 2) DS N/A Heat-Sink Package BL25664BA1336.16SFB1 4096MB(Kit of 2) DS N/A Heat-Sink Package BL25664BN1337.16FF (XMP) 6144MB(Kit of 3 ) DS N/A Heat-Sink Package CT25664BA1339.16SFD 6144MB(Kit of 3 ) DS Micron 8UD22D9JNM (continued on the next page) Timing DIMM (BIOS) 8-8-8-24 8-8-8-24 9 9 9-9-9-24 9 9 6-6-6-20 9 9 6-6-6-20 6-6-6-20 7-7-7-24 9 Voltage 1.65-1.85V 1.65-1.85V 1.60V 1.5V 1.8V 1.8V 1.8V 1.65V DIMM Support A* B ASUS P5P41T LE 1-13