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GTX 460 vs EA650

N

noky

n00b
Joined
Oct 2, 2010
Messages
3
Parts:

ASUS M4N98TD EVO
Antec EA650
eVGA GTX 460 (EE D5) 1GB
2x2GB Generic DDR3 RAM
WD 1TB SATA HDD
Samsung SATA DVD-RW

The important parts are (to me) the PSU and the GPU and have been bolded.

The EA650 is rated at 25 amps on the +12v3 rail (which are the two PCI-E connectors -- 6-pin and 6+2 pin)

The GTX 460 (I just read on the box) requires a minimum +12v amperage of 24.

Do the easy math and the card should work right? Well it doesn't. When I turn the box on, I get a single long beep that loops and no video.

Monitor works -- tested with my laptop.

The motherboard is reporting no errors via the speakers and everything sounds like it's running smoothly.

No on board video so I can't actually check. I don't have a multimeter to test if the rail is actually putting out the 25 amps.

The question is: where do I go from here?

I wanted to upgrade the build to 2x460s but clearly that's not possible with this PSU (I should've done better research). So the plan is to purchase a Cooler Master GX-750 (single rail with ~60 amps on the +12v).

Is declaring the PSU insufficient and believing in the GPU the best course of action? It's definitely the cheapest and funds are limited. The current PSU clearly works but just possibly isn't putting out enough power.

Are there situations where the card would issue the insufficient power beep but actually just be a faulty card? Wouldn't the card register as sufficient power but just fail to display (artifacts or BSOD)?
 
That PSU is plenty for a single 460. You could try one 6 pin and use the adapter that normally comes with the card to use 2 molex connectors. Is this a new build? If so the 460 could be bad out of the box. Can you test it in another machine or at a friends house?
 
Do not buy a GX750. It is quite a bit worse than the EA650 you already have. If you have another computer around, test the PSU with it to see if it will work.
 
Problem resolved: Bad Ram -- thank you for your help guys, I'm reassured the PSU is sufficient.
 
PSU is great for my current sig rig but was having problems with a secondary 9600GSO, so I might have been at the limits of it, not sure what your CPU is but a 2nd GTX460 is likely out of your reach
 
My CPU is an AMD Phenom II X6 (95w)

A second GPU would most-likely be pushing it. However, I may be able to get there. I guess, one step at a time -- I really should've planned better.
 
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