Going to upgrade my system, will my PSU be enough?

[OggerMC]

Im planing to upgrade my system to a another MSI 5850 Twin Frozr.

Here is my Rig :

http://www.sysprofile.de/id122861

Case  : CM Strom Sniper with 3x 200mm Fans and one 140mm and another 120mm fan (good air flow i believe)
CPU   : AMD Phenom II X4 955 C2
Ram  : 3x 2 GB @ 1333
Vga   : MSI 5850 Twin Frozr @ 925 / 1000 Mhz @ 1.264 mV (because i use it for gaming aswell and it guiminer runs all day long in the background)
HDD  : 3x 7.200 rpm 500 GB HDD
Mobo : MSI 790FX-GD70
PSU   : Xilence Gaming Series 600W ATX (SPS-XP600.(135)R3) http://www.xilence.net/en/products/power-supplies/gaming-series/product/241977.html


I plan to OC the new card to its stable limits for mining, I got mine to pump out 400 mhash/s stable for mining only. (1005 Core and 335 Mem @ 1.299 mV)
And 2 things i need to know aswell :
Do i need to connect the new card with crossfire bridge to my current card for it to work?
Will i have to flash the Rates directly into the BIOS for the new card? Becouse i cant see an option wich lets me choose what gpu to oc.

[Atroxes]

A 600W good quality PSU is enough for that system.

A low quality PSU might not be up to the task. I have no experience with the brand you've picked, so can't comment on that.

[OggerMC]

how will i know if its good? or simply have to try it? I didnt find any reviews about it, only about its predecessor. It was sayed that he holds up the 600 watt realy good, but wont have reserves for above that.

[klaaster]

DC Output:
+12V(1)
20 A
+12V(2)
20 A

12V * 40 Ampere = 480W maximum Output

The 5850`s maybe have 150W each, lets say 170W overclocked, so there should remain 140W for the rest.
The cards maybe take less with memory downclocked.

[N4rk0]

If i'm not wrong each card needs 2 (6PIN PCI-E) connectors but that psu has only 2 of those connectors , this mean that you can't have 2 GPUs.

[DaMayan]

If i'm not wrong each card needs 2 (6PIN PCI-E) connectors but that psu has only 2 of those connectors , this mean that you can't have 2 GPUs.

You can always try and use molex-to-pci-e connectors but thats always risky as its not really clear which rail the power comes from and it goes against the designed usage. It works in some cases and not in others.
To be safe its a good idea to keep the number of pci-e connectors in mind when choosing a PSU.

[OggerMC]

So basically, i wont know until i try it?

Guess i will take for my next PSU a more popular one, like Corsair 750 or something like that :x