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Asrock, a leading maker of mainboards, on Thursday confirmed that its mainboards based on Intel B85 and Intel H87 core-logic sets support the earlier-discovered “non-Z” overclocking feature that allows to overclock Intel Core “Haswell” central processing units with unlocked multiplier on platforms not originally designed to support such capability.

Officially, Intel provides extensive overclocking capabilities only on mainboards based on Z-series chipsets and for K-series microprocessors with unlocked multipliers. Naturally, both Intel and its partners charge more for Intel Z87-powered motherboards and Core i-series 4000K-family central processing units. However, Asrock has found a backdoor in Intel’s mainstream B85 and H87 chipsets that allows to change CPU multipliers on “unlocked” chips (a feature only officially offered by Z87 platform).

Asrock Fatal1ty H87 Performance mainboard based on mainstream Intel H87 chipset as well as all the other motherboards powered by B85 or H87 core-logic sets come with a BIOS feature called “non-Z OC”. Once enabled, the feature allows to overclock any Intel Core i-series “Haswell” microprocessor with unlocked multiplier using processor’s ratio multipliers. Thus, a combination of select Asrock mainboards and Intel Core i7-4770K/i5-4670K processors allows to get premium performance using a less advanced and costly mainboard. Unfortunately, Asrock’s “non-Z OC” feature does not unlock multipliers on non-K microprocessors.

While the BIOS capability lets enjoy unlocked CPU multipliers on mainboards that are not supposed to support such feature, it should be noted that Intel H87 chipset does not support a number of other enthusiast-oriented capabilities (e.g., proper multi-GPU support) that are available on Intel Z87 platforms.

It should also be noted that because “non-Z OC” is related to Intel’s chipset, CPU and firmware, Asrock does not guarantee the availability of “non-Z OC” in the future.

Intel did not comment on the news-story.

Tags: Intel, Lynx Point, Haswell, Core, 22nm, Asrock

Discussion

Comments currently: 6
Discussion started: 06/28/13 12:59:08 AM
Latest comment: 06/29/13 05:54:24 PM
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1. 
Pretty sweet deal I think if you don't need the extra GPU slots as the H87 only loses those things. Means you could save a bit on a budget single GPU build.

What would be even better is if Intel releases an i3 K chip priced at about $130-$150. Would be a great budget gaming cpu. Combine this with a B85/B87, it would make a great low cost platform, CPU+MB under $200.

Typo in line 2, it should be B85.
2 0 [Posted by: Stickmansam  | Date: 06/28/13 12:59:08 AM]
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I think if Intel were to release K CPU on i3, it will cannibalize sales of i5 instead.
0 0 [Posted by: trumpet-205  | Date: 06/29/13 05:54:24 PM]
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2. 
what will Intel do? i don't think that they would like it.
0 0 [Posted by: massau  | Date: 06/28/13 10:38:39 AM]
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3. 
If you're buying an unlocked CPU then why would you put it in a mobo with a lot fewer features?
0 0 [Posted by: AnonymousGuy  | Date: 06/29/13 12:30:11 AM]
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Actually high-end board often comes with features that most people won't utilize.

It is good that ASRock gives people the option to overclock on these mainstream board.
0 0 [Posted by: trumpet-205  | Date: 06/29/13 05:53:16 PM]
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4. 
These lower spec mobos would also generally have lesser power solutions. probably not a great idea to go for a big OC if you did use the feature.
0 0 [Posted by: Dave Hartnell  | Date: 06/29/13 02:37:28 PM]
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