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SB mitx outlook

post #1 of 8
Thread Starter 
So, we're all anxiously awaiting the arrival of some mitx boards with P67, or even Z chipsets, for our overclocking delight.

How is overclocking on matx versions of these boards?

How does a H67 mitx board, for that matter, handle a stock clocked i7 2600k?

Asus has H67 boards which support limited overclocking in this form factor, are there any reports on their limited overclocking?

Admittedly, I'm out of the loop regarding SB overclocking; I recognize it's a chore to do without an unlocked multiplier, but I don't know to what degree.

Discuss.

Links would be welcome.
Edited by RonindeBeatrice - 4/8/11 at 2:51pm
    
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post #2 of 8
Nobody who isn't under NDA knows how overclocking will be on mini ITX P67/Z68 boards.

Supposedly the "limited" overclockability of H67 boards is somewhere around 4x multipliers. I'm not sure of that as no reviewers seem to care enough to look into it.

With SB, so far you need the unlocked multiplier to do any useful overclocking.

The limitations of H67 ITX boards is the power support. Some boards (for instance the Intel) may be limited to lower power versions of the CPUs (AKA the "T" series).
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post #3 of 8
i doubt there will be a mini itx p67 board but have hopes that there will be a z68 board. however as to when this will ever be is unclear

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post #4 of 8
Quote:
Originally Posted by Zap View Post
Supposedly the "limited" overclockability of H67 boards is somewhere around 4x multipliers. I'm not sure of that as no reviewers seem to care enough to look into it.
Correction:
  • H67 chipset motherboards are limited to BCLK overclocking which is at most 5% if you want to maintain stability.
  • Non-K SKU processors (Core i5-2300, i5-2400, i5-2500, i7-2600) paired with a P67 motherboard are limited to 4x multiplier overclocking (+Turbo).

There was a news article earlier mentioning Gigabyte has plans for a P67 M-ITX board. As to when that will be, we still don't know. Keeping my fingers crossed for Z68 M-ITX.

The problem with M-ITX boards in general is power. You can't cram as many VRM's on M-ITX like you can on mATX or ATX. Among LGA-1156 M-ITX boards, Gigabyte's GA-H55N-USB3 was an exception with 4+2 phase power. Even with that, you basically have to choose between a quad-core with low overclock or a high overclock but dual-core only.
Edited by rui-no-onna - 4/11/11 at 10:07pm
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post #5 of 8
Thread Starter 
Quote:
Originally Posted by rui-no-onna View Post
The problem with M-ITX boards in general is power. You can't cram as many VRM's on M-ITX like you can on mATX or ATX. Among LGA-1156 M-ITX boards, Gigabyte's GA-H55N-USB3 was an exception with 4+2 phase power. Even with that, you basically have to choose between a quad-core with low overclock or a high overclock but dual-core only.
I can appreciate that, and am familiar with reports of AMD matx boards burning up, but, considering the maturity of Intel's 32nm process, aren't we able to get some rather high overclocks without demanding a lot of the power delivery system?

Is there repository of LGA-1156 Mitx horror stories?
    
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post #6 of 8
Quote:
Originally Posted by RonindeBeatrice View Post
I can appreciate that, and am familiar with reports of AMD matx boards burning up, but, considering the maturity of Intel's 32nm process, aren't we able to get some rather high overclocks without demanding a lot of the power delivery system?
Perhaps. Clarkdales (32nm) reached pretty high clocks (highest I've seen was 4.5 GHz) on the H55N-USB3. The problem is we don't have any P67 M-ITX boards for testing overclocking right now.

As for horror stories, perhaps check out various forums? I think there may have been some fried Zotac and DFI boards.
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post #7 of 8
Quote:
Originally Posted by rui-no-onna View Post
Correction:
  • H67 chipset motherboards are limited to FSB overclocking which is at most 5% if you want to maintain stability.
Interesting.

Post #6 by an Asus rep said H67 = no multiplier overclocking, chipset limitation.

Quote:
Originally Posted by RonindeBeatrice View Post
Is there repository of LGA-1156 Mitx horror stories?
Mostly just DFI and a few Zotac boards dying from pushing quad cores too high.
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post #8 of 8
I havn't tried to overclock mine at all yet. Honestly, between my H67 and P67 setups, I can't tell the difference between the two other then GPU related things. Both my setups have 2600k but my mitx has a low powered GPU.
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