PCI Express Burn-in Mode – The BIOS Optimization Guide

PCI Express Burn-in Mode - The BIOS Optimization Guide

PCI Express Burn-in Mode

Common Options : Default, 101.32MHz, 102.64MHz, 103.96MHz, 105.28MHz, 106.6MHz, 107.92MHz, 109.24MHz

 

Quick Review

The PCI Express Burn-in Mode BIOS feature allows you to overclock the PCI Express bus, even if Intel stamps its foot petulantly and insist that it is not meant for this purpose. While it does not give you direct control of the bus clocks, it allows some overclocking of the PCI Express bus.

When this BIOS feature is set to Default, the PCI Express bus runs at its normal speed of 33MHz.

When this BIOS feature is set to 101.32MHz, the PCI Express bus runs at a higher speed of 101.32MHz.

When this BIOS feature is set to 102.64MHz, the PCI Express bus runs at a higher speed of 102.64MHz.

When this BIOS feature is set to 103.96MHz, the PCI Express bus runs at a higher speed of 103.96MHz.

When this BIOS feature is set to 105.28MHz, the PCI Express bus runs at a higher speed of 105.28MHz.

When this BIOS feature is set to 106.6MHz, the PCI Express bus runs at a higher speed of 106.6MHz.

When this BIOS feature is set to 107.92MHz, the PCI Express bus runs at a higher speed of 107.92MHz.

When this BIOS feature is set to 109.24MHz, the PCI Express bus runs at a higher speed of 109.24MHz.

For better performance, it is recommended that you set this BIOS feature to 109.24MHz. This overclocks the PCI Express bus by about 9%, which should not cause any stability problems with most PCI Express devices. But if you encounter any stability issues, use a lower setting.

 

Details of PCI Express Burn-in Mode

While many motherboard manufacturers allow you to overclock various system clocks, Intel officially does not condone or support overclocking. Therefore, motherboards sold by Intel lack BIOS features that allow you to directly modify bus clocks.

However, some Intel motherboards come with a PCI Express Burn-in Mode BIOS feature. This ostensibly allows you to “burn-in” PCI Express devices with a slightly higher bus speed before settling back to the normal bus speed.

Of course, you can use this BIOS feature to overclock the PCI Express bus, even if Intel stamps its foot petulantly and insist that it is not meant for this purpose. While it does not give you direct control of the bus clocks, it allows some overclocking of the PCI Express bus.

When this BIOS feature is set to Default, the PCI Express bus runs at its normal speed of 33MHz.

When this BIOS feature is set to 101.32MHz, the PCI Express bus runs at a higher speed of 101.32MHz.

When this BIOS feature is set to 102.64MHz, the PCI Express bus runs at a higher speed of 102.64MHz.

When this BIOS feature is set to 103.96MHz, the PCI Express bus runs at a higher speed of 103.96MHz.

When this BIOS feature is set to 105.28MHz, the PCI Express bus runs at a higher speed of 105.28MHz.

When this BIOS feature is set to 106.6MHz, the PCI Express bus runs at a higher speed of 106.6MHz.

When this BIOS feature is set to 107.92MHz, the PCI Express bus runs at a higher speed of 107.92MHz.

When this BIOS feature is set to 109.24MHz, the PCI Express bus runs at a higher speed of 109.24MHz.

As you can see, this BIOS feature doesn’t allow much play with the clock speed. You can only adjust the clock speeds upwards by about 9%.

For better performance, it is recommended that you set this BIOS feature to 109.24MHz. This overclocks the PCI Express bus by about 9%, which should not cause any stability problems with most PCI Express devices. But if you encounter any stability issues, use a lower setting.

Go Back To > The BIOS Optimization Guide | Home

 

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