What is a VGA switch card and what does it do? I was looking into getting a new mobo, Asus M4A89GTD Pro. In the specs it and parts list, there is this VGA switch card.
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Well, I did not know either what it is for. But here someone posted the answer:
Quote:
Ok, having looked at the manual, I can see what its for.
The "Switch card" is a slot terminator.
You put it in the 2nd PCI-e 16x slot to disable it and make the 1st slot use all 16 lanes.
Two PCI-Express2.0 x16@8 lane graphic slot offer 4Gbyte/sec data transfer rate at each relative direction and up to 8Gbyte/sec concurrent bandwidth at full speed.
Looks to me like the default set up is to have the 2 PCI-e slots in a split 2 x 8 lane configuration, ie Crossfire mode.
If youre only using 1 card, put in the Switch and youll get all 16 lanes for your 1 card.
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System Manufacturer/Model Number Custom built OS Windows 7 Ultimate 64 bit CPU AMD Phenom II X4 965 Black Edition Motherboard Gigabyte GA-MA790X-DS4 Memory GSkill 4 X 2 GB PC 8500 Graphics Card XFX Radeon HD 6790 D Sound Card On board RealTek HD Monitor(s) Displays Dual monitors:Samsung SyncMaster S20B300 Screen Resolution 1600 X 900
Keyboard Logitech G510 Mouse Razor DeathAdder PSU Ultra X4 750 watt fully modular Case Thermaltake Overseer RX 1 full tower Cooling Core-Contact 92 mm CPU Cooler Hard Drives Seagate Barracuda 1TB (primary)
Seagate Barracuda 2 X 320 GB Internet Speed 50/5 Mbps UL/DL Other Info Optical: Super Muliti DVD burner w/lightscribe, Hauppauge WinTV HVR-1800
System Manufacturer/Model Number Self Built OS Windows 7 Pro x64 SP1 CPU Intel Core i5-2500K Motherboard ASUS P8P67 Memory 8GB Corsair XMS3 DDR3 Graphics Card EVGA GeForce GTX 670 FTW Sound Card ASUS Xonar DS Monitor(s) Displays SAMSUNG P2070 Screen Resolution 1600 x 900 @ 60Hz
Keyboard Logitech K300 Black Mouse Genius on Steelseries 4HD Gaming pad PSU Corsair TX950W Case Corsair Obsidian 650D Cooling Thermaltake Frío Hard Drives WD Caviar Blue Other Info Headphones: Sennheiser HD-515