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October 13, 2023

Should I Use Two Separate Pcie Cables For My GPU?

If you’re building a new PC, you may be wondering whether or not it’s worth using two separate pcie cables for your GPU. The answer to this question depends on the type of card you have and how much power it consumes. Using two separate cables can improve the performance of your GPU and prevent overheating issues that might affect the longevity of your graphics card. However, it can also be difficult to set up and take up more space in your case.

It’s generally recommended to use two separate pcie cables for your GPU. Especially if your graphics card draws more than 75W from the power connectors on the motherboard. This is because each cable from your PSU has a maximum draw based on its thickness, and using one of those cables to power a powerful graphics card will most likely exceed the max amount of current that the cable can handle.

There’s also a chance that the graphics card will experience sharp, short-lived power spikes from time to time. These spikes can cause your PSU’s power cables to heat up and potentially melt their connecting end.

If you have a quality PSU that comes with 6 separate PCIE 8 pin connectors, it’s best to keep them all separate and not pigtail them together. This will help protect your PSU’s power cables from overheating and causing other damage to your system. This is particularly important if you have a power hungry GPU or an overclocked GPU that’s prone to frequent power surges.