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Should i look at lapping my new i7 970? - Page 2

post #11 of 19
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yeah thanks for all the help +rep. i think i will maybe try on my 920 and see what difference it makes(after my research of course) even though it is going back to a aircooled rig, but doubt i will do it to the 970, just because i think i would cry if i stuffed it and im hoping a b batch 970 should get some decent clocks on relatively low volts and im under full custom EK loop thanx again guys
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post #12 of 19
Quote:
Originally Posted by Mr. Mojo View Post
I love editorials where the author talks out his arse.

If done properly, lapping works. I've done it myself, and so have plenty of other people here on OCN and around the net in general. It does void your warranty, but technically overclocking does too, so it's not like that is a major issue to some of us. It also carries the risk of damaging the CPU if done improperly. I've heard of people shorting out their CPU, getting metallic dust in their rigs, even grinding clear through the IHS. It is a fairly risky procedure and should only be performed after quite a bit of research, with the proper materials, and only if you don't mind the potential to ruin the CPU.

With that said, I wouldn't bother on a 970. It would be an expensive replacement if you bricked it, and shaving a few degrees off the temps wouldn't be worth the risk IMO. You're already going with water cooling, so your temps should be well within spec even if you OC it (provided that you use good WC components and know what you're doing).


" but technically overclocking does too" Yea but because of turbo boost there is no way to tell that you overclocked to damage your cpu so legally because they automatically overclock you get a new cpu.
post #13 of 19
is 1-2c worth risking $900 to you?
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post #14 of 19
Quote:
Originally Posted by MC21 View Post
" but technically overclocking does too" Yea but because of turbo boost there is no way to tell that you overclocked to damage your cpu so legally because they automatically overclock you get a new cpu.
I didn't say you couldn't RMA an OC'd CPU. I was just pointing out that the drawbacks in that rant weren't as terrible as the author wanted us to believe. Aside from all that, how many people actually have to RMA a CPU? I've been building rigs for myself, my family, my friends, and customers for over 12 years now...probably close to 200 builds in total, and I have never had to RMA a CPU. Even with a significant OC, they tend to last longer than the mobo/GPU, which is when I recommend a replacement build anyway.
 
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post #15 of 19
I actually lapped my i7 930 recently, along with my True Spirit. I just got them in August and wasn't impressed with temps. I really have seen no benefit yet. I think that the heatsink is still a bit convex. It was really horrible before I lapped it though. When I inspected where the AS5 was after removing the heatsink, I was really surprised how bad of contact there was. Pre-lapping, the cpu heatspreader was not at all flat either. It took many passes with 220 grit to get it close to level before going up in grits. was well into the copper over most of the CPU, but still had two circles near the center that were basically untouched by the sandpaper. The CPU looked really good with a straightedge after lapping, except for the very outer edges which are basically beveled. I used the same sandpaper as for the heatsink and it was a little blistered up with the water. However, given the location of the die in an i7, I don't think the outer edge of the heatspreader is that important. What do you guys think? I'm hoping that after the AS5 breaks in, it will be worth it. I may have actually used a little too much since I followed the standard line method. It seems to me that with a flatter surface, less should be required. I actually got kind of scared while lapping the CPU. Be sure to use duct tape or some other kind of tape that doesn't wick in water to shield the bottom of the CPU. Don't ask me how I know this...


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post #16 of 19
Thread Starter 
Quote:
Originally Posted by reflex99 View Post
is 1-2c worth risking $900 to you?
no definately not, and i've decided against it, but i thought it was more in the range of 10-20? but like the last post said he hasnt seen ANY results
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post #17 of 19
Quote:
Originally Posted by CH4PZ View Post
no definately not, and i've decided against it, but i thought it was more in the range of 10-20? but like the last post said he hasnt seen ANY results
if done well, you can get 1-2c change, otherwise, it will just look pretty
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post #18 of 19
Quote:
Originally Posted by ShortySmalls View Post
as soon as u overclock u ruin your warranty as well.. so
Unless they has a way of getting into your motherboards BIOS settings the only way that AMD or Intel would even have the slightest clue you overclocked was if you ended up scorching the chip from severe overvolting.

Put on that tin foil hat when calling Intel/ AMD for an RMA and they'll never know anything was amiss.
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post #19 of 19
Quote:
Originally Posted by blackbalt89 View Post
Unless they has a way of getting into your motherboards BIOS settings the only way that AMD or Intel would even have the slightest clue you overclocked was if you ended up scorching the chip from severe overvolting.

Put on that tin foil hat when calling Intel/ AMD for an RMA and they'll never know anything was amiss.
yes their is no real way of them knowing unless you overvolt to much or something, but its still in the warranty
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