lapped by Q6600 today

[graysky]

Well, after lapping my HS last night, I've had this nagging little voice in my head telling me to do the same from the CPU. I did the job totally with 800 grit sandpaper. Initially, I told myself I'd just buff what's there right now just to see if it's level. After about 30 laps in one direction and 30 in the other direction I discovered I had quite a concave IHS. So I just kept at it. Two 9x11 pieces of 800 grit later paper later I was left with a darn flat layer of copper looking back at me.

I was very happy to see that it lowered my temps doing the samex264.exe encoding test I have been using to benchmark them. Below are the numbers some of which you may have read in the thread I started about the heat sink last night. By the way, these numbers are my Q6600 @ 9x333 and as the caption in the image says, they are averaged over the entire encode:



The one thing that still has me a little miffed is the difference between the two dies (Cores 1/0 and Cores 2/3). Either there is something internally that's off perhaps related to the HIS (which I’m not going to remove so don’t suggest it) or the sensors aren't placed symmetrically and I’m being mislead. Oh well.

[Speederlander]

The one thing that still has me a little miffed is the difference between the two dies (Cores 1/0 and Cores 2/3).

I have a 6C to 7C difference at load and 2C to 3C idle. Lots of quads are like this.

[graysky]

Good to know, thanks for that info dude. Hey, what is your speedfan's system temp? Winbound W83627DHG on my system. Mine seems to hover around 38C.

[graysky]

Here's the process I used: just a piece of 8x10 glass and tapped a strip of the 800 grit to it. A little splash of water and about 45 laps in one direction, clean sand paper and the CPU, then rotated 90 degrees and 45 laps in the other. Repeat. I then replaced the strip of 800 grit and repeated until I got this result (which by the way looks pretty scratched up due to the camera flash, and yes I know there's a little bit of the nickel left and that it still appears to be concave a little bit, but I didn't want to press my luck and will leave it as-is):



BTW, I've been running 9x366 (3.3 GHz) for the past hour stable on stock voltage. Temps are little higher (53, 53, 48, 47) but those aren't averaged like the first set was; it still has about 40 min to go before I have the full data set.

[k00lance]

Doesn't lapping avoids your warrenty?

[graysky]

Yep, and so does overclocking it

[Nanometer]

Yep, and so does overclocking it

no, it doesn't. Only if you're a noob and you fry your cpu and try to rma it

[graysky]

I stand corrected then.

[Kaze06]

no, it doesn't. Only if you're a noob and you fry your cpu and try to rma it

In all technicality, it still voids your warranty .

[HiJon89]

no, it doesn't.

Yes, it does.

this Limited Warranty does NOT cover:
...any Product which has been modified or operated outside of Intel’s publicly available specifications

http://cache-www.intel.com/cd/00/00/...0372_50372.pdf

EDIT: And a quote from Intel's UK representative Alistair Kemp:

If you run our processors out of spec, you will void your warranty

http://www.tech.co.uk/computing/upgr...eid=1350658553

[Kaze06]

Spot on. It's an unauthorized modification outside of the product's original range of specification, so it won't be covered under warranty if they know you overclocked it.

[Scyth3]

Should have started on a lower grit like 200 to get it flat then work on the finish by using higher grit.

[Speederlander]

I lap all my CPUs so losing warranty from OCing just isn't a concern.

[graysky]

Man, I'm getting neurotic with this. I was looking back at my pictures and that slight concave quality to the thing was starting to bug me so I pulled it out and hit it w/ the final piece of 800 grit which effectively removed that last little bit of nickel and took out more if not all of the concave quality.



It did make a difference in temps as well.



Bedtime for me. I also think that the AS5 has a 200 hr breakin period when the temps can drop additionally (3-5C they say). So that's a cool thought as well.

[Nanometer]

Yes, it does.



http://cache-www.intel.com/cd/00/00/...0372_50372.pdf

EDIT: And a quote from Intel's UK representative Alistair Kemp:

http://www.tech.co.uk/computing/upgr...eid=1350658553

However, speaking today to tech.co.uk, Intel's main man in the UK, Alistair Kemp, categorically denied that Intel processors had any secret circuitry capable of recording overclocking attempts.

From your source. Perhaps you should throughly read your sources before you quote them for your side. I know for a fact, they can't tell you overclocked your CPU unless you damage it.

[HiJon89]

From your source. Perhaps you should throughly read your sources before you quote them for your side. I know for a fact, they can't tell you overclocked your CPU unless you damage it.

I never said that Intel can tell if you overclocked your CPU, I just said that overclocking voids your warranty, which it does.

[Nanometer]

Then how can Intel void your warranty if they don't know you overclocked?

[HiJon89]

Then how can Intel void your warranty if they don't know you overclocked?

When you overclock an Intel CPU you violate the terms of the warranty. Any attempt to make use of said warranty after overclocking the processor constitutes fraud. Some people have a little thing called honesty

[Nanometer]

How many honest people do you think there are? lol


This is exactly the same as the sticker inside the Dodge Viper that says something along the lines, "drive carefully." Responses to both situations go as one: Do you think anyone will take that seriously?

[raccoonone]

How many honest people do you think there are? lol


This is exactly the same as the sticker inside the Dodge Viper that says something along the lines, "drive carefully." Responses to both situations go as one: Do you think anyone will take that seriously?

There are plenty of honest people. I've broken stuff by voiding the warranty and I don't try to return it: I buy a new one.

Anyway, the discussion was about whether it voids the warranty, and it DOES, legally, void the warranty

[troisanh]

something called integrity.

[Nanometer]

When was the last time the honor system worked on the large scale? Never!

It is not possible to determine when a CPU is operated outside its advertised settings... yet.
Overclocking does not shorten the life of a CPU, excessive current, voltage, and heat does. So that means running your CPU at the same voltage at 3GHz will last just as long as that same CPU at 1GHz.

And half the CPUs are running a few MHz higher and a few MHz lower then the rated frequency. So I guess half those people are out a warranty. The ambiguity of the user end agreement was probably done on purpose. There is no clear definition of what Intel means by taking CPU out of its specifications. Do they mean purposefully taking it out of spec? Maybe, but it doesn't say. This all really doesn't matter. If I destroyed a CPU I wouldn't RMA it either. But if a CPU dies, at least in my hands, it's probably not due to overclocking.

[Scyth3]

Offtopic: That is why the CPU manufacturer determines if you are eligible for a RMA. If a CPU stops working, send it back, and let them determine if you are eligible for a RMA.

Ontopic: Nice temps for a quad core

[adamsleath]

" there is no honour amongst thieves "

[Kanten]

Some people have a little thing called honesty

This is America, how often does that apply?