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Re: T520 34mm Express Card Slot.
Posted: Sun Sep 02, 2012 6:43 pm
by delman
Hi all. I have a Lenovo ThinkPad T520 i7-2820 with a 34mm express card slot. Am trying to hook up an external graphics card setup but my contact tells me I really need a "3x" slot for the setup to work properly. Can anyone tell me HOW I know what speed the slot is? I've checked the specs online and can't seem to find that info?
Re: T520 34mm Express Card Slot.
Posted: Mon Sep 03, 2012 2:51 am
by mikemex
It's the PCI Express version supported by the chipset. Only Ivy Bridge supports PCI Express 3.0, a T520 would have PCI Express 2.0.
But it doesn't really make much difference. Standard cards are 16 lanes and ExpressCard slot always has 1 lane. It's going to bottleneck anyway, just less so with a faster version.
Re: T520 34mm Express Card Slot.
Posted: Mon Sep 03, 2012 7:04 pm
by delman
Thx for your help mikemex.
Re: T520 34mm Express Card Slot.
Posted: Tue Sep 18, 2012 10:12 pm
by syncrotic
Actually, it might be PCIe 1.0 or 2.0, depending on whether the lane being routed to the expresscard slot comes off the CPU or the south bridge chip. By now I assume you've tried the eGPU setup: what speed does it run at? You can use GPU-Z to check...