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Sw1 switch - whats it for

czeslaw
Level 7
I have a question concerning asus matrix platinum. Near crossfire there is a switch called sw1. Whats it for?
M7H / Matrix 7970 P (flashed to R9 280x Matrix P) + 2 x DELL U2713HM / i7 4790k + h100i push&pull / 3 x Kingston 3k SSD 120GB / 1 x Corsair ForceGT 120GB / TridentX 2400 2x8gb / Corsair Graphite 600t case + AX1200i + NZXT IU01 + Bitfenix USB3.0 internal adapter
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oldbrave
Level 9
When all else fails, read the manual !
Electronic Smoke Signals From my TechnoTeepee
ASUS Crosshair V Formula AM3+ 990FX, 1703 bios
AMD FX 8350 Vishera @ 5162Mhz [21x245] 1.546v 🙂
Water Cooled - Koolance EX2-1055, CPU 370 WB, Idle=22c Load=52c
32Gb G.Skill Sniper ddr3 1600 8G X 4 , 9-9-9-24 @ 1.55v
ASUS HD7970-DC2T-3GD5, Cat 13.5 beta 2, Dell U3011 @ 2560x1600
SanDisk Extreme 120Gb SSD SATA 6Gb, 250Gb SATA 6Gb, 1Tb SATA 6Gb x2
Win 7 Ultimate 64bit, Corsair Obsidian 800D, Corsair HX1000w PSU

Do you know where can I get one?

EDIT:
According to this review: LINK it's to allow 6 monitor output.

Take note that ASUS also has a BIOS switch, but it it not a BIOS switch. It changes the vBIOS display output functionality allowing for a 6-way Eyefinity setup (2 single links) or a 5-way (single link and dual link). Differences in display resolution will occur to the DVI ports under this configuration.


18543

It's changing the behaviour of left-most DP and DVI (marked red in the picture above).
M7H / Matrix 7970 P (flashed to R9 280x Matrix P) + 2 x DELL U2713HM / i7 4790k + h100i push&pull / 3 x Kingston 3k SSD 120GB / 1 x Corsair ForceGT 120GB / TridentX 2400 2x8gb / Corsair Graphite 600t case + AX1200i + NZXT IU01 + Bitfenix USB3.0 internal adapter

oldbrave
Level 9
See, I just knew you could do it ! 🙂
Electronic Smoke Signals From my TechnoTeepee
ASUS Crosshair V Formula AM3+ 990FX, 1703 bios
AMD FX 8350 Vishera @ 5162Mhz [21x245] 1.546v 🙂
Water Cooled - Koolance EX2-1055, CPU 370 WB, Idle=22c Load=52c
32Gb G.Skill Sniper ddr3 1600 8G X 4 , 9-9-9-24 @ 1.55v
ASUS HD7970-DC2T-3GD5, Cat 13.5 beta 2, Dell U3011 @ 2560x1600
SanDisk Extreme 120Gb SSD SATA 6Gb, 250Gb SATA 6Gb, 1Tb SATA 6Gb x2
Win 7 Ultimate 64bit, Corsair Obsidian 800D, Corsair HX1000w PSU