Pcie總線的問題
 

我使用的是z87+e1230v3 主機板總線經查詢為20條

今天我用一張顯卡 pcie 3.0 x16
一張m.2 pcie轉卡 規格為x4

若再加一張網卡 pcie x1的

是否會影響到顯卡跟或m2 ssd 的速度

要看主機板設計，比較常發生的是x4以上的插槽裝進新卡之後，原本顯示卡插槽的頻寬就變x8

x1的插槽通常不影響其他PCIe插槽。

PCI Express Theoretical Max Bandwidth
The theoretical maximum bandwidth of PCI-e 3.0 is 8GT/s, or nearly 1GB/s per lane:

PCI-e 1.0 PCI-e 2.x PCI-e 3.0 PCI-e 4.x
x1 250MB/s 500MB/s 985MB/s 1969MB/s
x4 1000MB/s 2000MB/s 3940MB/s 7876MB/s
x8 2000MB/s 4000MB/s 7880MB/s 15752MB/s
x16 4000MB/s 8000MB/s 15760MB/s 31504MB/s

[YOUTUBE]XJuj16gRoBI[/YOUTUBE]

https://www.asus.com/tw/Motherboard...specifications/
*1: DP 1.2 Multi-Stream Transport compliant, supports DP 1.2 monitor daisy chain up to 3 displays
*2: With 2 PCIex16 graphics card.
*3: The PCIe x16_3 slot shares bandwidth with PCIe x1_2/3/4 slots. The PCIe x16_3 slot is set to x1 mode by default.
*4: The PCIe x1_2 shares bandwidth with SATA6G_E12. The SATA6G_E12 is enabled by default for system resource optimization.
*5: Supports on Intel® Core™ processor family
*6: These SATA ports are for data hard drivers only. ATAPI devices are not supported.

之前有查過H97板子,看到的是x4跟2個x1共用,
用x4之後2個x1會失效,用x1後x4就不能用

反而B85板子,x4跟x1都獨立,可同時用

應該是H97的pcie頻寬拿去做USB3