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How can the bios load 4 crossfire or sli option rom into the memory?

post #1 of 2
Thread Starter 
I wonder how can the bios load 4 crossfire or sli options rom into the pc memory when its 4x 64kb-128kb it is minimum 256kb? My option rom from my HD 6950 is already 64KB. Four of them exceeds any option rom space by far?
Edited by Recursion - 5/15/13 at 10:50am
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Western Digital Western Digital Samsung Seagate Barracuda 
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post #2 of 2
Thread Starter 
Quote:
Originally Posted by Recursion View Post

I wonder how can the bios load 4 crossfire or sli options rom into the pc memory when its 4x 64kb-128kb it is minimum 256kb? My option rom from my HD 6950 is already 64KB. Four of them exceeds any option rom space by far?

My 2x crossfire amd hd is loading only a single option rom. I have verified it with RW everything. It seems it knows when there are too many video adapters of the same type. Even when I disable crossfire there is only a single option rom hence I think it's in the bios itself and know to scan the option rom ram.
Crayemulator
(34 items)
 
HTPC
(14 items)
 
Laptop
(20 items)
 
CPUMotherboardGraphicsRAM
AMD FX-6100 Asus Sabretooth 990FX rev 2.0 Sapphire R9 290X Tri-X Vulcan DDR3 2400 Orange Series 
Hard DriveHard DriveHard DriveHard Drive
Western Digital Western Digital Samsung Seagate Barracuda 
Optical DriveCoolingCoolingCooling
LG DVD-RW DH16A1L 140 mm Cooltek fan Noctua NF-P12 premium fan Noctua NF-P12 premium fan 
CoolingCoolingCoolingCooling
140 mm Cooltek fan 140 mm Cooltek fan Coolermaster Seidon M120 140 mm Cooltek fan 
CoolingCoolingCoolingCooling
XSPC 420 reservoir and pump Antec Kühler 920 Phobya G-Silent 12 Phobya G-Silent 12 
OSOSMonitorKeyboard
Windows 8.1 Professional OpenSuSE 12.2 22" LG Flatron W2243T Keysonic 
PowerCaseMouseMouse Pad
Be quiet! Straight Power E6 (700W) Corsair Carbide 400R Logitech Gaming Mouse Case Logic Gel-eez 
AudioAudioOtherOther
Samsung 240T Loudspeaker Onboard SATA Y power cable 2x Y 3-pin power cable 
OtherOther
4x S-ATA cable black 50 cm 12volt 4x 3-pin power cable adapter 
CPUMotherboardGraphicsRAM
AMD Phenom 550 2x Biostar TA870+  ATI Radeon HD 4300 Noname Ram 
Hard DriveHard DriveCoolingCooling
Western Digital Caviar Blue Hitach LC Power Cosmo Cool LC-CC95 Arctic Cooler F9 PWM 
CoolingOSMonitorKeyboard
Arctic Cooler F8 PWM Windows 7 Ultimate 27" Acer Noname 
PowerOther
Enermax Pro87+ 500 Watt  3.5" 1.44 MB disk drive  
CPUMotherboardGraphicsGraphics
Turion 64 X2 Ultra  SB 700 series HD 3650 HD 3200 
RAMRAMHard DriveOptical Drive
Komputerbay Noname Samsung Spinpoint M8 Sony DVD/DV-RW TS-L633A 
OSMonitorKeyboardMouse
Windows 8 LG Flatsscreen PS/2 compatible PS/2 compatible 
AudioOtherOtherOther
AMD High Definition Audio Device Bluetooth Adapter Winbond CIR Transceiver IEEE 1394 Firewire 
OtherOtherOtherOther
Qualcomm Atheros AR928X wireless JMicron PCIe MS/SD/MMC/xD Host Controller Realtek PCIe GBE  Logitech 1.3 M WebCam 
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Reply
Crayemulator
(34 items)
 
HTPC
(14 items)
 
Laptop
(20 items)
 
CPUMotherboardGraphicsRAM
AMD FX-6100 Asus Sabretooth 990FX rev 2.0 Sapphire R9 290X Tri-X Vulcan DDR3 2400 Orange Series 
Hard DriveHard DriveHard DriveHard Drive
Western Digital Western Digital Samsung Seagate Barracuda 
Optical DriveCoolingCoolingCooling
LG DVD-RW DH16A1L 140 mm Cooltek fan Noctua NF-P12 premium fan Noctua NF-P12 premium fan 
CoolingCoolingCoolingCooling
140 mm Cooltek fan 140 mm Cooltek fan Coolermaster Seidon M120 140 mm Cooltek fan 
CoolingCoolingCoolingCooling
XSPC 420 reservoir and pump Antec Kühler 920 Phobya G-Silent 12 Phobya G-Silent 12 
OSOSMonitorKeyboard
Windows 8.1 Professional OpenSuSE 12.2 22" LG Flatron W2243T Keysonic 
PowerCaseMouseMouse Pad
Be quiet! Straight Power E6 (700W) Corsair Carbide 400R Logitech Gaming Mouse Case Logic Gel-eez 
AudioAudioOtherOther
Samsung 240T Loudspeaker Onboard SATA Y power cable 2x Y 3-pin power cable 
OtherOther
4x S-ATA cable black 50 cm 12volt 4x 3-pin power cable adapter 
CPUMotherboardGraphicsRAM
AMD Phenom 550 2x Biostar TA870+  ATI Radeon HD 4300 Noname Ram 
Hard DriveHard DriveCoolingCooling
Western Digital Caviar Blue Hitach LC Power Cosmo Cool LC-CC95 Arctic Cooler F9 PWM 
CoolingOSMonitorKeyboard
Arctic Cooler F8 PWM Windows 7 Ultimate 27" Acer Noname 
PowerOther
Enermax Pro87+ 500 Watt  3.5" 1.44 MB disk drive  
CPUMotherboardGraphicsGraphics
Turion 64 X2 Ultra  SB 700 series HD 3650 HD 3200 
RAMRAMHard DriveOptical Drive
Komputerbay Noname Samsung Spinpoint M8 Sony DVD/DV-RW TS-L633A 
OSMonitorKeyboardMouse
Windows 8 LG Flatsscreen PS/2 compatible PS/2 compatible 
AudioOtherOtherOther
AMD High Definition Audio Device Bluetooth Adapter Winbond CIR Transceiver IEEE 1394 Firewire 
OtherOtherOtherOther
Qualcomm Atheros AR928X wireless JMicron PCIe MS/SD/MMC/xD Host Controller Realtek PCIe GBE  Logitech 1.3 M WebCam 
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