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How can I differentiate between the unmarked PCIE slots on my motherboard?

Fresh7 days ago
Mar 15, 20261285 views
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Problem

The motherboard in question is the ASUS P5MT-M Micro ATX The following image shows a couple sections of information taken from the official ASUS manual for this motherboard, along with an image of the entire motherboard taken from the ASUS website. (The motherboard in the image is REV:1.01, whereas…

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Fix for: How can I differentiate between the unmarked PCIE slots on my motherboard?

Low Risk

Without powering up the system, you can most likely tell from visual inspection which slot is x8 and which is x4. Each PCIe pair of traces (differential pair) has two series capacitors (AC coupling capacitors). The capacitors will be lined up on the…

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