Enough Power?

[monstermankc]

Gear:

Intel i7 975 3.33
6GB Kingston Hyper x 1600
1100 Watt PSU
3X EVGA GTX 480's SLI
3 Way EVGA Classified MoBo
300Gb Velociraptor HD


I just got my EVGA GTX 480's today. Every time I try to play a game especially Crysis or Mass Effect on Max settings my PC crashes sometimes with a blue screen. Does anyone think it is my PSU? I thought 1100 watts would be enough. Any Thoughts?

 

[makwy2]

Gear:

Intel i7 975 3.33
6GB Kingston Hyper x 1600
1100 Watt PSU
3X EVGA GTX 480's SLI
3 Way EVGA Classified MoBo
300Gb Velociraptor HD


I just got my EVGA GTX 480's today. Every time I try to play a game especially Crysis or Mass Effect on Max settings my PC crashes sometimes with a blue screen. Does anyone think it is my PSU? I thought 1100 watts would be enough. Any Thoughts?

I don't think so... have you tried running it with just two or a single 480? I am fairly certain 1.1kW is enough.

 

[monstermankc]

Not yet. I am gonna start that trouble shooting process next. I will keep you posted.


My PSU is 2 years old. Its a topower 1100watt

 

[iam2thecrowe]

oh....topower......cheap........although they do manufacture for companies such as OCZ and mushkin, their own models are pretty average. You may want to check the specs of it, like is the 1100watt a max rating, how many watts is available on the 12v rails combined? Also if its a couple years old, the power output can be lower than new, depending on the quality of capacitors.

 

[iam2thecrowe]

do you have this psu?? http://www.hardwareheaven.com/reviews/703/pg1/topower-powerbird-1100w-psu-introduction.html

 

[monstermankc]

Yep same one. However I figured out my problem and it was an easy fix. It was so easy I cant even tell you because it is so embarrassing. But the good news everything is up and running

 

[Dane Bouwer]

at this website you can calculate the power supply you need:

http://extreme.outervision.com/psucalculatorlite.jsp

I've done it already and just by the information that you gave me, you'll need on average about a 900W power supply, so power isn't your problem! (unless the power supply is faulty and not giving even power distributions throughout your circuit!

have you installed the latest drivers, supporting the gtx 400 series and sli capabilities?

have a professional check your power supply for faults, or if you can do it yourself?
the things is older power supplies never really had anything to work around until the 5970 and 480 came out, and now that they have to work a bit, they tend to get a bit faulty1 happened to me and a power supply upgrade fixed it all...

not to be funny or anything but I never heard the name of topower? is it a good brand? remember a brand name says it all, and sometimes we only pay for the brand name, so if you are in the market to purchase a new PSU, lean towards good brand names, because you don't want them to mess around with those great GPU's of yours

Just my thought

Dane

 

[decode]

I'd recommend checking the GPU Temps, if there overheating it could cause them to blue screen or atleast force them to shut themselves down.

 

[monstermankc]

Best answer selected by monstermankc.

 

[iam2thecrowe]

now i want to know what was wrong? did you forget to plug in the extra power connectors??