Jumpers; Cpu / Dram Bus / Qpi Dram Overvoltage Settings (3-Pin Ov_Cpu; 3-Pin Ov_Dram_Bus; 3-Pin Ov_Qpi_Dram) - Asus P6X58D - Premium X58 LGA1366 MAX-24GB Atx 3PCIE16 Pcie Pci User Manual

2.6

Jumpers

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.
Pins 1-2 (Default)
Pins 2-3 (OV Enabled)
•
•
•
•
2-22
OV_CPU
up to 1.70V
up to 2.10V
Before you change the jumper settings for extra-high overvoltage ability, use the BIOS
items first to adjust the desired CPU, DRAM, and QPI performance. Ensure that 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 first 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_DRAM_BUS OV_QPI_DRAM
up to 2.00V up to 1.70V
up to 2.46V up to 1.90V
Chapter 2: Hardware information