****OFFICIAL I7 980x HEX CORE OVERCLOCKING THREAD****

[rjk]

whats the rest of your spec?

and cooling please?

 

[MikeHunt79]

That's a high multi, are EE's still without the multiplier lock?

Also, are i3's 32nm? If so I may be tempted stray from S775...

 

[icysniper]

Also, are i3's 32nm? If so I may be tempted stray from S775...

yeh they are

 

[mmj_uk]

What's AES all about?

 

[chipps101]

i thought AES was some sort of wireless encryption

 

[tipes]

whats the rest of your spec?

and cooling please?

Would be interested to know as well.

 

[jakspyder]

im pretty sure he has a 256gig C300 SSD. man im jealous of urr pc. cant wait to see some more results! get some L2N on that beast and oc the nuts off it. i dont care if its impractical we wana see those mega numbers.

 

[nalla]

hi m8 just wandering if you noticed a subtantiall difference from your last chip to this ( whatever it was ) as i have a big wad coming in june and was going to upgrade to 17 kit, but might be tempted in this as i play a lot of supreme commander forged alliance and that is multi cpu optimised so would be nice to know how this performs on this one game, any insight would be appreciated.

 

[Ando]

Some more subzero benches using the xeon version on the Evga w555: http://www.xtremesystems.org/forums/showthread.php?t=247007

This guys got a crazy setup and obviously spent an insane amount just for some numbers. Saying that, I would do the same if I had the money.

 

[kitfit1]

Some more subzero benches using the xeon version on the Evga w555: http://www.xtremesystems.org/forums/showthread.php?t=247007

This guys got a crazy setup and obviously spent an insane amount just for some numbers. Saying that, I would do the same if I had the money.

Sometimes in the world of clocking, something very special happens.
When you look at those results, and then watch the vid, you KNOW that this is that special something.

 

[Cosimo]

whats the rest of your spec?

and cooling please?

Spec:

Asus P6X58D motherboard
Corsair Dominator GT 6GB DDR3 2000MHz memory
Crucial RealSSD C300 256GB
Western Digital Caviar Black 1TB
XFX ATI Radeon HD 5850 graphics
Creative X-Fi Titanium Fatal1ty Champion 7.1 sound
LG CH10LS20 10x BluRay-ROM / 16x DVD±RW drive
Pioneer BDR-205 12x Blu-Ray Writer / 16x DVD±RW drive
Enermax Modu87+ 700W power

Cooling:

Prolimatech Megahalems Rev B CPU cooler with 2 Akasa Apache Black push/pull fan.
Antec P183 case with 2 Noctua NF-S12B FLX exhaust fans and an AcoustiFan intake.

 

[Cosimo]

The current stable setup:

EDIT: see corrected IntelBurn Test a few post down.

 

[unknownsock]

I have a deal with the GF, every upgrade I buy thats £300 or more I buy her something like new shoes or a dress etc. Keeps her happy

To be fair if i buy something who cares! My gf is the same, some people have some strange relationships on here

 

[copystuff]

To be fair if i buy something who cares! My gf is the same, some people have some strange relationships on here

If i was him i would have brought her some nice underwear to keep them both happy.

 

[Cosimo]

Prolimatech Megahalems Rev B CPU cooler with 2 Akasa Apache Black push/pull fan.
Antec P183 case with 2 Noctua NF-S12B FLX exhaust fans and an AcoustiFan intake.

Fans sorted out and here are the updated idle/load stats for 4.2GHz:

 

[Cosimo]

What's AES all about?

Intel Advanced Encryption Standard (AES) Instructions Set R3

Intel® AES instructions are a new set of instructions available beginning with the all new 2010 Intel® Core™ processor family based on the 32nm Intel® microarchitecture codename Westmere. These instructions enable fast and secure data encryption and decryption, using the Advanced Encryption Standard (AES) which is defined by FIPS Publication number 197. Since AES is currently the dominant block cipher, and it is used in various protocols, the new instructions are valuable for a wide range of applications.

The architecture consists of six instructions that offer full hardware support for AES. Four instructions support the AES encryption and decryption, and other two instructions support the AES key expansion.

The AES instructions have the flexibility to support all usages of AES, including all standard key lengths, standard modes of operation, and even some nonstandard or future variants. They offer a significant increase in performance compared to the current pure-software implementations.

Beyond improving performance, the AES instructions provide important security benefits. By running in data-independent time and not using tables, they help in eliminating the major timing and cache-based attacks that threaten table-based software implementations of AES. In addition, they make AES simple to implement, with reduced code size, which helps reducing the risk of inadvertent introduction of security flaws, such as difficult-to-detect side channel leaks.

Source

 

[tipes]

Hi Simulatorman,

Thanks for the updates - very interesting, but I have a question. The G flops scores at 4.2 Ghz seem very low - surely should be in the region of 50+, and yet you were using all twelve - seems strange.

 

[Cosimo]

Hi Simulatorman,

Thanks for the updates - very interesting, but I have a question. The G flops scores at 4.2 Ghz seem very low - surely should be in the region of 50+, and yet you were using all twelve - seems strange.

It does indeed. I have gone back and redone the IntelBurn Test and now the results are showing the CPU in it s full glory:

The auto setting has the CPU at around 50%, in the 12 thread setting it's at 100%.

 

[Cosimo]

Overclocking:

The nominal operating DC power range for the processor is 0.80~1.375 volts.

The Absolute Maximum and Minimum Ratings are:

Table 2-6 specifies absolute maximum and minimum ratings, which lie outside the functional limits of the processor. Only within specified operation limits can functionality and long-term reliability be expected.

At conditions outside functional operation condition limits, but within absolute
maximum and minimum ratings, neither functionality nor long-term reliability can be expected. If a device is returned to conditions within functional operation limits after having been subjected to conditions outside these limits, but within the absolute maximum and minimum ratings, the device may be functional, but with its lifetime degraded depending on exposure to conditions exceeding the functional operation condition limits.

At conditions exceeding absolute maximum and minimum ratings, neither functionality nor l ong-term reliability can be expected. Moreover, if a device is subjected to these conditions for any length of time then, when returned to conditions within the functional operating condition limits, it will either not function or its reliability will be severely degraded.

Although the processor contains protective circuitry to resist damage from Electro-Static Discharge (ESD), precautions should always be taken to avoid high static voltages or electric fields.

Source

Technical Documents

The absolute maximum (destructive) processor core voltage is 1.40 volts, so you have been warned.

I will be tweaking further so watch this space.

 

[tipes]

It does indeed. I have gone back and redone the IntelBurn Test and now the results are showing the CPU in it s full glory:

The auto setting has the CPU at around 50%, in the 12 thread setting it's at 100%.

Thats much more like it !!!!!
Do you think this chip is easy to o clock and worth it ????
Presume 4Ghz should be a walk in the park for 24/7 use?

Good work there - keep us informed of developments if you would please.

Mark