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
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
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.