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PCIe graphics slow (bad lanes?)
I was checking out an old PC (Intel 965 chipset) and drawing the display
seems rather slow. I swapped the graphics card with another aged PC of same chipset and RAM and CPU speed. The slowness seems to be the mainboard, not due to graphics card. I checked BIOS settings, and couldn't see anything that might drag it down. I know that PCIe 2 or 3 can fall back to a lower speed, but these are PCIe 1.1 already. So I wonder about lanes. What if the mainboard has a dud lane - does the graphics card drop down to x8 (or less)? |
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