Can my PSU handle SLI ?

Hi, I'm wondering if my setup can handle SLI evga GeForce 9800gtx+ cards? I have just one at the moment, but curious as to if my PSU will shatt out if I decide to get another GPU to go SLI for gaming.

My PSU is a Thermaltake Black widow 450w pc gaming edition

Windows 7 (32-bit)
AMD Phenom II X2 550
3326 MB RAM
NVIDIA GeForce 9800 GTX+
System Information

System Name: COLIN-PC
Operating System: Windows 7 (32-bit)
Motherboard Manufacturer: Gigabyte Technology Co., Ltd.
Motherboard Model: GA-MA790X-UD4P
Motherboard Version:
BIOS Manufacturer: Award Software International, Inc.
BIOS Version: F6
BIOS Release Date: 08/05/2009
Memory Information

Total Physical Memory: 3326 MB RAM
Available Physical Memory: 2009 MB RAM
Slot 1: Unknown, 1024MB, 800MHz
Slot 2: Unknown, 1024MB, 800MHz
Slot 3: Unknown, 1024MB, 800MHz
Slot 4: Unknown, 1024MB, 800MHz
Virtual Memory: C:\pagefile.sys (3326 MB)
CPU Information

Manufacturer: AuthenticAMD
Type: AMD Phenom II X2 550
Number of CPU's: 1
Cores per CPU: 2
Hyperthreading: Not capable
Measured Speed: 3717.0 MHz
Multiplier: 19X
L1 Instruction Cache: 2 x 64 KB
L1 Data Cache: 2 x 64 KB
L2 Cache Size: 2 x 512 KB
L3 Cache: 6 MB
Disk Information

Drive Letter (Number): C (Physical drive 0)
Model Number: WDC WD1600AAJS-00M0A0
Disk Size (Free space): 149.0 GBytes (12.3 GBytes)
Disk Cluster Size: 4 KBytes
File System: NTFS
Video Adapters

Description: NVIDIA GeForce 9800 GTX+
Chip Type: GeForce 9800 GTX+
DAC Type: Integrated RAMDAC
Memory: 512MB
Video BIOS: Version
Driver Provider: NVIDIA
Driver Version:
Driver Date: 6-7-2010
Monitor 1: 1280x768x32 85Hz (Primary monitor)
3 answers Last reply
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  1. No. That is a low/mid quality PSU. Get a quality 500-550W or more unit. Get a Corsair, Seasonic, Antec, XFX or PC Power unit.
  2. Agreed you need atleast 500 W good PSU.
  3. No it will not take the load of the other card, and when you try to game with it or use high graphic computing power you system will reboot. Choose a good new power efficient PSU with SLI support and a few new things in it. It'll be a good investment....
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