Asus P6T User Manual download pdf (Page 42)

2-22 Chapter 2: Hardware information

Chapter 2

2. CPU / DRAM Bus / QPI DRAM overvoltage setting (3-pin OV_CPU,

3-pin OV_DRAM_BUS, 3-pin OV_QPI_DRAM)

These jumpers allow you to enable or disable the advanced CPU, DRAM Bus, and QPI

DRAM overvoltage settings in BIOS. Read the following information before you change

the jumper settings.

• Before you change the jumper settings for extra-high overvoltage ability, use the BIOS

items rst to adjust the desired CPU, DRAM, and QPI performance. Make sure your

system functions well under the highest BIOS voltage settings before you change the

setting of these three jumpers.

• DO NOT set the OV_CPU jumper to pins 2–3 when you install a new CPU and have

not booted for the rst time. Doing so may cause the system to halt. For system failure

due to the wrong setting of the OV_CPU jumper, shut down the computer and move

the cap back to pins 1–2.

• According to Intel CPU spec, DIMMs with voltage requirement over 1.65V may

damage the CPU permanently. We recommend you install the DIMMs with the voltage

requirement below 1.65V.

• The system may need a better cooling system (for example, a water-cooling system)

to work stably under high voltage settings.

OV_CPU OV_DRAM_BUS OV_QPI_DRAM

Pins 1-2 (Default) up to 1.70V up to 1.90V up to 1.70V

Pins 2-3 (OV Enabled) up to 2.10V up to 2.46V up to 1.90V

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Asus P6T User Manual Page 42