Do I need to download driver or update Bios after upgrading new PSU?

draptak

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I was getting a system crash with my new GTX 770 when I had a 600w PSU with 34amps on the rail.

So I upgraded my PSU to 750w (CX750M) with 62amps on the rail. The GTX 770 requires that it has 42amps. So my 62amps is enough.

But I'm still getting system crashes when playing a game.

Any solution?
Thank you
 

My Computer My Computer

At a glance

Windows 7 Ultimate 64-BitIntel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz6.00 GB RAMNVIDIA GeForce GTX 770
Computer type
PC/Desktop
Computer Manufacturer/Model Number
ASUS
OS
Windows 7 Ultimate 64-Bit
CPU
Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz
Motherboard
ASUSTeK Computer INC. P5QL/EPU
Memory
6.00 GB RAM
Graphics Card(s)
NVIDIA GeForce GTX 770
Sound Card
(1) NVIDIA Virtual Audio Device (WDM) (2)HD Audio Device
Monitor(s) Displays
Samsung SyncMaster 22"
Screen Resolution
1650x1050 Max Resolution
Hard Drives
1TB Sata
PSU
Corsair CX750M

My Computer My Computer

At a glance

Windows 7 64 Bit Home Premium SP1i7-3820GSkill F3-14900CL9Q - 16GBEVGA GeForce GTX660 - Driver 352.86
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built - Jan 2013
OS
Windows 7 64 Bit Home Premium SP1
CPU
i7-3820
Motherboard
Asus P9X79-PRO - Bios 4608
Memory
GSkill F3-14900CL9Q - 16GB
Graphics Card(s)
EVGA GeForce GTX660 - Driver 352.86
Sound Card
On board Realtek ALC898
Monitor(s) Displays
Acer S271HL
Screen Resolution
1920 x 1080
Hard Drives
#1- Samsung 840 Pro Series
#2- Western Digital WD1002FAEX Sata3 Black
#3- Western Digital WD1002FAEX Sata3 Black
PSU
Corsair CMPSU-850TX-V2 - 850 watt (by Seasonic)
Case
Corsair Obsidian 550D
Cooling
Standard 3 120mm case fans, Cooler Master Hyper 212 EVO
Keyboard
MS KC-0405
Mouse
Intellimouse 5-button
Internet Speed
56 Mbits/Sec (on a good day)
Antivirus
Avast & Malwarebytes
Browser
Firefox
Other Info
Asus DVD - DRW-24B1ST 24X
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