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EVGA 780i - Can it hit 425 FSB with a Quad?

post #1 of 9
Thread Starter 
I tried tinkering with 3.8GHz on my 780i and it wouldn't even post / go to BIOS.

Am I SOL and stuck with 3.6GHz at 1.47v?

I'm on water so I know I could pump like 1.55v into it and still be safe.

Any way to make it so I can hit 425 FSB?

Jam3s
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post #2 of 9
I know the 780i that I had could do 450x8=3600. Every motherboard is going to vary though. I know that the nforce chipsets weren't very well known for their high FSB. Try lowering your multi and adding more FSB, could just be a FSB hole.
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post #3 of 9
Thread Starter 
Quote:
Originally Posted by dcshoejake View Post
I know the 780i that I had could do 450x8=3600. Every motherboard is going to vary though. I know that the nforce chipsets weren't very well known for their high FSB. Try lowering your multi and adding more FSB, could just be a FSB hole.
Ok. jake, if I did 450x8 would it still require the same vcore?

EDIT: I'm in windows at 450x8 instead of 400x9.

I'm gonna do some IBT on it to see if it's still the same vcore, 1.47v
Edited by jam3s - 1/25/11 at 11:46pm
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post #4 of 9
Quote:
Originally Posted by jam3s View Post
Ok. jake, if I did 450x8 would it still require the same vcore?
I really don't remember, I just had to learn overclocking with a multiplier last night . Try booting with the same vcore. If you don't post than you're still hitting an FSB hole or you've reached the limit with your motherboard. If you post but crash then just add more. If you can post but BSOD in windows and the like than you know it wasn't FSB related.
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post #5 of 9
Thread Starter 
Quote:
Originally Posted by dcshoejake View Post
I really don't remember, I just had to learn overclocking with a multiplier last night . Try booting with the same vcore. If you don't post than you're still hitting an FSB hole or you've reached the limit with your motherboard. If you post but crash then just add more. If you can post but BSOD in windows and the like than you know it wasn't FSB related.
Yeah hopefully I don't need more vcore. It must of been an FSB hole because I can post/ get into bios and get into windows stably.

Just testing in Intel Burn Test now to see if it is good to go on vcore at 1.475v
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post #6 of 9
Quote:
Originally Posted by jam3s View Post
Yeah hopefully I don't need more vcore. It must of been an FSB hole because I can post/ get into bios and get into windows stably.

Just testing in Intel Burn Test now to see if it is good to go on vcore at 1.475v
Wait, you're running 5GB of RAM?
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post #7 of 9
Thread Starter 
Quote:
Originally Posted by dcshoejake View Post
Wait, you're running 5GB of RAM?
I should edit that. I"m running 2x2GB, not 2x2GB + 1GB like I was before.
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post #8 of 9
the 780i will get you to 3.8Ghz no problem. I just dont know if you can live with almost 1.6v core thats its gonna need. The chip can take it is just a matter of keeping temps under control.
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by Desert Rat View Post
the 780i will get you to 3.8Ghz no problem. I just dont know if you can live with almost 1.6v core thats its gonna need. The chip can take it is just a matter of keeping temps under control.
yeah desert, I tried 1.55v and it wouldn't even post/go to bios, let alone get into windows.

And temps are hitting 62c load right now in Prime 95 Blend for 11 hours.

So I don't have much room for more OCing since i'll be getting two EK blocks for my cards
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