Question PCIex4 and PCIex16 slots works only x1 line with Nvme PCIe adapter

Apr 11, 2019
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Hello,

i can't understand why my PCIex4 and PCIex16 slots works only x1 line and doesn`t use x4 with Nvme PCIe adapter. Is a bad adapter?

i puted adapter into gpu x16 slot, CrystalDiskInfo shows transfer: Current mode PCIe 3.0 x1 | supported mode PCIe 3.0 x4

and then i puted adapter into x4 slot, CrystalDiskInfo shows transfer: Current mode PCIe 2.0 x1 | supported mode PCIe 3.0 x4

then i puted video card Geforce GTX660 in x16 slot gpu-z shows PCIe v3.0 x16

Motherboard: Gigabyte GA-Z68AP-D3 rev 2.0 with latest UEFI beta bios, i tried and downgraded bios, disabled SATA ports, all PCIe slots are empty - same thing...
https://www.gigabyte.com/Motherboard/GA-Z68AP-D3-rev-20#sp

CPU: QuadCore Intel Core i5-3570

Disk: ADATA SX8200PNP PRO 1TB
http://www.xpg.com/us/specification/583

PCIe adapter ICY BOX IB-PCI214M2-HSL
https://www.raidsonic.de/en/index.php?we_objectID=5456
 
Apr 11, 2019
10
1
15
all slots empty except nvme adapter, i use cpu vga... but AIDA64 shows:



USB3 and LAN adapter is integrated into the motherboard, disabled it in bios didn`t help...
 

TJ Hooker

Titan
Ambassador
If it's a compatibility issue between that specific motherboard and specific adapter that's so weird. Sorry, don't know what else to try. I did notice that your BIOS is labelled as a beta, you could try a different, older one but I have no reason to think that'd fix anything.

Are there any settings in your BIOS relating to speed or power savings for PCIe?
 
Apr 11, 2019
10
1
15
If it's a compatibility issue between that specific motherboard and specific adapter that's so weird. Sorry, don't know what else to try. I did notice that your BIOS is labelled as a beta, you could try a different, older one but I have no reason to think that'd fix anything.

Are there any settings in your BIOS relating to speed or power savings for PCIe?
no, only gpu slot (PEG) i can set from Auto to GEN1, GEN2 or GEN3. I tried all the options. BIOS downgrade also... thanks for your attention :)
 
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