I heard that the card needed about 24 Amps on the 12V rail to be safe. Mine has four 12V rails with I believe 18 A on each. There's no alternate power plug-in for the card so I'm assuming all it's power comes from the motherboard. So how do I find out if I'll be able to power it? I'm really confused.
Thanks for the help
177ine
Edit: I just noticed, the card does have a six pin connector. My power supply has two six pin connectors, but according to the label, I've only got 18 A going to it. Is this enough to power it?
Edit: I just noticed, the card does have a six pin connector. My power supply has two six pin connectors, but according to the label, I've only got 18 A going to it. Is this enough to power it?
You're good to go. That PSU will handle 2 8800GTs in SLI (just on the off chance you have an SLI motherboard ) The card can get 75Watts of power through the motherboard PCI-E x16 slot. Each PCI-E 6-pin connector can provide an additional 75Watts. For video cards and PSUs that have a PCI-E 8-pin connector a GPU can get 150Watts through that connector.
Message edited by WR2 on 11-01-2007 at 05:50:45 AM
you're most likely not going to find a psu with over 20a on each rail, that's the general rule of "safe operation" it's just a standard of how it's made. so that's why they make more than one +12v rail now... so you can run these power hungry number crunching cards without setting your pc on fire... or shocking the crap out of yourself (literally, killing you and crapping your pants, or crapping your pants because your gaming pc just caught fire) anyway... yeah, so a psu with 2 +12v rails at 18a each is going to give you a total of 32.. i think, or 34... i can't remember but they don't add up normal, there's always a loss with power no matter what you do... oh, and don't go with gold connectors... i didn't check your psu... but gold on tin just causes corrosion and resistance. modular psu's are great, but you do lose a small percentage of power because every connection that isn't perfect causes resistance, but you should be ok if you have headroom (and you should). just use one of those wattage calculators for your setup, then get a few more watts, and hit 2 18a +12v rails and you should be pretty safe... i think... someone will correct me soon if not, unless their wrong, but there is a psu faq on toms somwhere... find it, read it, then you'll be smarter than me. :-p
Thanks guys for all the replies. I appreciate it, and yes I do have a SLI motherboard but I figured SLI would be useless cause my pretty old AMD64 3500+ would bottleneck me more than it will with one card.
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