Problem
======
My PC used to work fine but then exhibited various problems and now does not detect my second graphics card. Any single graphics card in any slot will be detected. If both are in then only the top / primary one will be detected.
Symptoms
=======
The Gfx card fans will always spin up. If the EVGA card is in the second slot while the MSI is in the first then the EVGA fan will spin very loudly.
Before the current problem my PC started crashing randomly. This included BSODs but also the PC stuttering and then freezing. My Gfx cards were not overheating and my PC has been cleaned of fluff and dust.
I'm fairly sure the freezes and BSODs started after I updated to nVidia's 320.18 driver, which possibly conflicted with factory overclocked cards like mine.
I rolled back to 314.07 but the problems continued. Currently I'm running 320.49.
Specifications
=========
======
My PC used to work fine but then exhibited various problems and now does not detect my second graphics card. Any single graphics card in any slot will be detected. If both are in then only the top / primary one will be detected.
Symptoms
=======
The Gfx card fans will always spin up. If the EVGA card is in the second slot while the MSI is in the first then the EVGA fan will spin very loudly.
Before the current problem my PC started crashing randomly. This included BSODs but also the PC stuttering and then freezing. My Gfx cards were not overheating and my PC has been cleaned of fluff and dust.
I'm fairly sure the freezes and BSODs started after I updated to nVidia's 320.18 driver, which possibly conflicted with factory overclocked cards like mine.
I rolled back to 314.07 but the problems continued. Currently I'm running 320.49.
Specifications
=========
Operating System
Microsoft Windows 7 Ultimate 64-bit
CPU
Intel Core i7 920 @ 2.67GHz 40 °C
Bloomfield 45nm Technology
RAM
6.00GB Single-Channel DDR3 @ 534MHz (8-8-8-20)
Motherboard
Manufacturer ASUSTeK Computer INC.
Model Rampage II GENE (LGA1366)
Chipset Vendor Intel
Chipset Model X58
Chipset Revision 12
Southbridge Vendor Intel
Southbridge Model 82801JR (ICH10R)
Southbridge Revision 00
System Temperature 29 °C
BIOS
Brand American Megatrends Inc.
Version 0705
Date 2009/04/09
Graphics
EVGA GTX460 SC
MSI N460GTX cyclone igd5 OC
EDIT: PSU
Vantec iON2+ 600W
Microsoft Windows 7 Ultimate 64-bit
CPU
Intel Core i7 920 @ 2.67GHz 40 °C
Bloomfield 45nm Technology
RAM
6.00GB Single-Channel DDR3 @ 534MHz (8-8-8-20)
Motherboard
Manufacturer ASUSTeK Computer INC.
Model Rampage II GENE (LGA1366)
Chipset Vendor Intel
Chipset Model X58
Chipset Revision 12
Southbridge Vendor Intel
Southbridge Model 82801JR (ICH10R)
Southbridge Revision 00
System Temperature 29 °C
BIOS
Brand American Megatrends Inc.
Version 0705
Date 2009/04/09
Graphics
EVGA GTX460 SC
MSI N460GTX cyclone igd5 OC
EDIT: PSU
Vantec iON2+ 600W