Does My Motherboard Have Enough PCIe Lanes for this Setup?

[Tyrian411]

I'm in the process of building a new PC for the first time in several years and I'm trying to get my head around the PCIe lanes. I'm coming from an i7-920 processor on an X58-based motherboard, an EVGA E760 Classified, that's served me well for 8 years, with several upgrades.

I'm planning on rebuilding with the following parts and I'm worried that I'm not going to have enough PCIe lanes to feed all my devices (I skipped any part that doesn't relate to PCIe lanes):

• 
  ■ Motherboard: ASUS TUF Z270 Mark 1 (x24 PCIe lanes supplied to peripherals)
  ■ CPU: Intel i7-7700K (x16 PCIe lanes supplied to GPUs)
  ■ Graphics GPU: EVGA GTX 970 (x8 PCIe lanes directly from CPU)
  ■ PhysX GPU: EVGA GTX 670 (x8 PCIe lanes directly from CPU)
  ■ NVMe SSD: Corsair Force MP500 M.2 2280 240GB PCI-Express 3.0 x4 (x4 PCIe lanes from chipset)
  ■ SATA SSD: Samsung 830 128GB (x1 PCIe lanes from chipset)
  ■ SATA SSD: Samsung 850 Evo 1TB (x1 PCIe lanes from chipset)
  ■ SATA SSD: Samsung 850 Evo 1TB (x1 PCIe lanes from chipset)

I know also that the CPU to chipset connection requires x4 PCIe lanes, but I'm struggling with the PCIe lanes needed for Ethernet, USB, etc. I'd like to avoid sacrificing any external ports. I've already checked my motherboard's manual and the only note regarding port restrictions is this: "The M.2_1 socket shares SATA_1 port when use M.2 SATA mode
device. Adjust BIOS settings to use a SATA device." I'm planning on using the M.2_1 socket for my Corsair drive in NVMe mode, so that shouldn't cause an issue.

Will I have enough PCIe lines to keep everything connected? Will there be anything I may need to shut off?

Thanks!

 

[Zerk2012]

First not a clue why you would use a separate card for PX. Not really needed.
None of the SATA SSD's use any PCI-E lanes only the SATA ports.