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Best mobo to OC E8400? - Page 2

post #11 of 17
Apparently Biostar is coming on strong right now. According to Newegg this one got it to 6.0ghz:

http://www.newegg.com/Product/Produc...82E16813138118
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post #12 of 17
I've been a DFI guy when I build, their BIOS options are amazing; if you stick with their P35 chipset you'll be fine, I'd warrant that you can get it more than 4.0GHz.
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post #13 of 17
Quote:
Originally Posted by A Russian :D View Post
Dfi Dk P35
seconded
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post #14 of 17
Thread Starter 
Like I said, I plan on getting a HD 4870 and I'd love the option to go with CrossFire down the road. I'd rather leave that option open than decide to go with a cheaper board that doesn't have two PCIe 2.0 ports. I've read in numerous places having anything less would bottleneck performance and wouldn't scale as well as it could.

I believe the P35 and P45 don't have multiple PCIe 2.0 ports. I could be wrong. Wouldn't be the first time. That's why I assumed I'd be choosing between the x38 and x48 chipsets.

Most every E8400 I saw overclocked to 4.0 GHz in the 45nm info thread had a Tuniq or TRUE on it. I'll be satisfied with 3.6 GHz.
post #15 of 17
Quote:
Originally Posted by chessmyantidrug View Post
I believe the P35 and P45 don't have multiple PCIe 2.0 ports. I could be wrong. Wouldn't be the first time. That's why I assumed I'd be choosing between the x38 and x48 chipsets.
They all have multiple PCI-E 2.0 slots, but since you are refering to the 16x physical slots you can put decent video cards in, I'll explain the difference.

The P35 and P45 boards have a much lower total number of PCI-E 2.0 lanes, this means that those boards with multiple 16x slots cannot run 16x in both slots at the same time. The P35s are limited to 16x in the first slot, and 4x in the second 16x slot. This seems to be a fairly large hit to crossfire performance. The P45s can run 8x/8x, which is somewhat better than 16x/4x.

The X38 and X48 are capable of running two PCI-E (2.0) 16x slots at the full 16 lanes each. This is the boest option for crossfire performance. The extra complexity required on both chipset and PCB makes boards based on the X38 and X48 a good deal more expensive, however.

Quote:
Originally Posted by chessmyantidrug View Post
Most every E8400 I saw overclocked to 4.0 GHz in the 45nm info thread had a Tuniq or TRUE on it. I'll be satisfied with 3.6 GHz.
3.6 is easily 24/7 attainable with the stock cooler, on a budget OCing board, to be quite honest.

After 3.8GHz the voltage starts to really ramp up on most E8400s, and only the very best will be 24/7 stable on air at 4.2GHz+.

If 3.6GHz is all you want to try for, you won't even need a 3rd party cooler.

For more than that, I would recommend a Xigmatek HDT-1283. All reviews and reports show it to be only a few degrees worse than the TRUE, and roughly on par with the OCZ Vendetta 2 (as they are nearly the same heatsink), yet can often be found for less than 40 dollars shipped (I got mine on sale for 26 bucks, shipped).
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post #16 of 17
Thread Starter 
I was going off the information available at Intel's site. They list 2 PCIe 2.0 x16 slots for x38 and x48, but not the P35 and P45. Thanks for clearing the confusion, but I was right in the fact the latter two don't have 2 PCIe 2.0 x16 slots. I'll at least want that option down the road.

Looking at Intel's site, I'm not sure what the differences are between x38 and x48. The only change I see is supported FSB of 1600 MHz, but I've read x38's will run it just fine.

It looks like there is no wrong board for me here. I'll just have to find a great deal. It looks like more x38 boards are going to $200+. I won't be seeing the fruits of my research for probably four months so I'll hold off on buying a motherboard until maybe October. Hopefully prices will drop into the $150 range by then.

Thanks for all the input.
post #17 of 17
I've been saying for a while what you've noticed, that the X48's don't really offer anything new over their younger sibling. However, why is not having 2 x16 PCI-E slots scaring you away from a P35/45? You can always get a multi-GPU, single-card solution, and it'll work just as fine as if you were CF'ing or SLI'ing the regular cards; P35/45 are better overclockers, too.
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