anche con 2x6990 e la giusta quantità di watt disponibile, ben 1950 , mi salta fuori il crash del driver
Crash dump directory: C:\WINDOWS\Minidump
Crash dumps are enabled on your computer.
On Sat 01/06/2013 15.25.31 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\060113-23337-01.dmp
This was probably caused by the following module: atikmpag.sys (atikmpag+0x9410)
Bugcheck code: 0x116 (0xFFFFFA800ADD7010, 0xFFFFF88005C30410, 0xFFFFFFFFC00000B5, 0xA)
Error: VIDEO_TDR_ERROR
file path: C:\WINDOWS\system32\drivers\atikmpag.sys
product: AMD driver
company: Advanced Micro Devices, Inc.
description: AMD multi-vendor Miniport Driver
Bug check description: This indicates that an attempt to reset the display driver and recover from a timeout failed.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: atikmpag.sys (AMD multi-vendor Miniport Driver, Advanced Micro Devices, Inc.).
Google query: Advanced Micro Devices, Inc. VIDEO_TDR_ERROR
On Sat 01/06/2013 15.25.31 GMT your computer crashed
crash dump file: C:\WINDOWS\memory.dmp
This was probably caused by the following module: atikmpag.sys (0xFFFFF88005C30410)
Bugcheck code: 0x116 (0xFFFFFA800ADD7010, 0xFFFFF88005C30410, 0xFFFFFFFFC00000B5, 0xA)
Error: VIDEO_TDR_ERROR
file path: C:\WINDOWS\system32\drivers\atikmpag.sys
product: AMD driver
company: Advanced Micro Devices, Inc.
description: AMD multi-vendor Miniport Driver
Bug check description: This indicates that an attempt to reset the display driver and recover from a timeout failed.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: atikmpag.sys (AMD multi-vendor Miniport Driver, Advanced Micro Devices, Inc.).
Google query: Advanced Micro Devices, Inc. VIDEO_TDR_ERROR
no nso come mai con 3 gpu regge e con 4 no. ma è una questione di driver adesso, non di watt mancanti
Se traduci le parti in rosso hai risolto il problema
C'è un secondo driver installato che andrà sicuramente in conflitto, se non riesci a trovarlo e a disinstallarlo, prova a formattare il pc e vedi prima di installare tutti i software se ti riconosce tutte e 4 le schede installando a pc pulito solo il driver video e prova a minare.