WYTIWX (China) Pushes Northwood Mobile 1.2GHz Celeron to 4.5GHz, +275% Beyond Stock

Here’s an interesting retro-style submission that may raise a few eyebrows. Chinese HWBOT member WYTIWX posted a score during the festive season that is surely the highest percentile CPU frequency overclock that we’ve ever encountered. He managed to push a Northwood architecture Intel Mobile Celeron chip from its stock CPU frequency of 1.2GHz, to 4.5GHz - a massive +275% beyond stock.

The configuration outlined above included an ASUS P5K-E/Wifi-AP motherboard based on the Intel P35 chipset. If you call this board supported Socket 478 mPGA processors including the Northwood architecture Celeron 1.2GHz. The chip in question is actually a single core, D1 Stepping processor designed for Mobile notebook systems. Being designed for mobile platforms where thermal and power efficiency concerns are paramount, these chips were famously good overclockers, offering tons of core frequency headroom. The submission also featured a 1GB DDR2 kit which (according to the submission screenshot) was configured at 584.9MHz (5-5-5-18-42). According to the submission notes, WYTIWX added is own IHS and applied both a Vmod and Vdroop mod. He experienced a Cold Boot Bug at around 125C and no Cold Bug.

You can check out the submission from WYTIWX right here and can also visit his profile page where you can check out SuperPi and Reference Frequency scores based on the same system. Congrats to WYTIWX for breaking the record for the highest ever percentile CPU frequency overclock. Thanks to Strunkenbold for bringing this submission to our attention.


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Taiwan sdougal says:

Congrats to WYTIWX!

Austria TAGG says:

This is the highest %oc for Intel, but No World record, the record still belongs (to my knowledge) to the geode nx 1250 with Just above 340% :)

Greece George_oc says:

Saw this the other day on XS, astonishing overclock!

Strunkenbold says:

TAGG said: This is the highest %oc for Intel, but No World record, the record still belongs (to my knowledge) to the geode nx 1250 with Just above 340% :)


Yeah youre right. Its basically my fault. I should tell that its just Intel WR.

United States GtiJason says:

So a socket 775 lga board, the ASUS P5K-E/Wifi-AP supported Socket 478 mPGA processors ?

United Kingdom GeorgeStorm says:

It uses an adaptor I think:
http://www.xtremesystems.org/forums/showthread.php?295505

China wytiwx says:

Thanks a lot, my friends. In fact, not only CPU adaptor needed, but also BIOS mod, hardware and OS mod, then you get Northwood/Prescott 478 CPU work on ASUS P35/X48/P45 mobo.

Strunkenbold says:

Would it be possible to run this on a DDR3 board too? Performance would suck of course but last time I tried running a s478 prescott on my P5E3 deluxe it simply froze at post. Do you have any hints for me?

Indonesia speed.fastest says:

Very good seeing it, your dedication is very good ;)

China wytiwx says:

Strunkenbold said: Would it be possible to run this on a DDR3 board too? Performance would suck of course but last time I tried running a s478 prescott on my P5E3 deluxe it simply froze at post. Do you have any hints for me?


Bynow I made P4 2.4C 200FSB (Northwood) overclock on P5E3-Premium X48 DDR3, you can see my submissions, though there are some problems to deal with, and have not compared system performance with DDR2 platform yet.

I have no P5E3-deluxe mobo, next step would try ASUS P5K DDR3 and P5E DDR2, according to my knowledge, ASUS X38 DDR2/DDR3 and P35 DDR2/DDR3 mobo s may could share similar BIOS mod for Prescott 478/Northwood chips, though compatibility problems would still be there.

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