Hi, I am not sure whether this is a bug or feature but I have problems getting my USB3.0 PCI express card detected in my Dello Vostro 3550 laptop. It appears to me after removal of the card there is about 60s window when the PCI INT is still kept (not released). After that time it is released, no matter that I for example meanwhile re-plugged the card already into the slot. After having found this I can confirm that my express card gets detected if I insert it in after at least 60 seconds since its previous removal. I have attached the logs from my attempts. Would anybody please confirm this is the intended behavior? Or is that because USB delay of the PCI INT resource after cards removal? Could I be, as a user, informed that I am not supposed to re-insert the card in a whatever time window? Either way, thank you for comments, Martin # lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5) 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5) 00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) 00:1f.0 ISA bridge: Intel Corporation HM67 Express Chipset Family LPC Controller (rev 05) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05) 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) 09:00.0 Network controller: Intel Corporation Centrino Wireless-N 1030 (rev 34) 0b:00.0 USB controller: Texas Instruments Device 8241 (rev 02) 11:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03) #