Six 975X Enthusiast Motherboards for Today and Tomorrow
BIOS, Continued
Possible Memory Configration | ||
---|---|---|
FSB1066 (266 MHz) | 1:XX | FSB800 (200 MHz) |
DDR2-533 | 1.00 | DDR2-533 |
DDR2-667 | 1.25 | DDR2-667 |
DDR2-800 | 1.33 | DDR2-800 |
Intel offers comprehensive support for manual memory timing optimization. It is also possible to increase the memory voltage up to 2.2 V.
Intel's D975XBX is the only motherboard in this roundup that reads and displays SPD information.
Although it exceeds the memory specification for the Intel 975X chipset, this motherboard supports DDR2-800. We found the DDR2-333 setting to be pretty useless, though.
We could overclock the Pentium Extreme Edition 965 up to 4.26 GHz.
Bios Voltage Settings | |
---|---|
FSB frequency | 133/200/266/333 MHz (+1%-30%) |
CPU Core voltage | 1.2750 - 1.600 V |
Memory voltage | 1.85 - 2.20 V |
FSB Signal voltage | 1.271 - 1.395 V |
Northbridge voltage | 1.525 - 1.725 V |
It is possible to increase the Northbridge and FSB voltages, as well as to alter all clock speeds.
Get Tom's Hardware's best news and in-depth reviews, straight to your inbox.

Patrick Schmid was the editor-in-chief for Tom's Hardware from 2005 to 2006. He wrote numerous articles on a wide range of hardware topics, including storage, CPUs, and system builds.