Question about running Haswell-E at stock but with 2800Mhz Memory.

[BonzaiDuck]

thanks, how much time did you invest in it? Tomorrow or rather much later today I'm going to drive to a shop to buy some TIM and clean both the cooler and the IHS and apply it fresh. I'm still not sure if I should buy some more IC diamond or some of that liquid metal stuff.

IF you use the CLU (liquid metal), just remember that it behaves a little like Mercury, which -- if dropped on the floor -- will splatter in little ball-bearing shaped parts. You don't want it getting on your motherboard, for obvious reasons.

The nano-diamond is non-conductive. It's maybe 1C degree less effective than the CLU. But another forum member and I shared our data to compare his H110i and the D14 (MY ducted D14). At the same VCORE and load-test (Prime95), we got the same temperature. Also -- lapping the IHS (invalidating the warranty and re-sale-ability) is worth a couple degrees, as would be lapping the nickel-plate off the heatsink base. All these little "grains of rice" add up.

The D14 really makes a computer case crowded and cramped. I think I could perhaps extend the duct to the front of the D14, or add a third fan where one of the original Noctuas in my photo is conspicuously missing.

I might have made the duct a tad "wider." But it draws air from the lowest D14 fin to the highest. Since all cases are different, the ducts would be different because of the alignment of the rear exhaust with the D14, or the distance of the rear tower from the exhaust fan, etc. etc.

You can purchase the art-board (black is a good color) at some arts and crafts store: 2'x3' panels are about $4+. They sell a three-part folding item of the same material for displays people might make for a class science project. It's cheap. To bend it, cut an eighth-inch-wide strip of the backing paper along the bend line. There are various glues that can be had for it, one type (Poly-Zap?) is about an ounce for $15; a cheaper foam-board glue costs maybe $3 or $4 and works almost as well.

It takes longer to do the measurement (precise -- in mm) and planning. If you make precise cuts and try not to make a mess of the gluing, it could take a Saturday morning while you watch cartoons on TV. . .

I figure it really gets a bang for the buck for making the D14 as effective as possible.

 

[Lepton87]

I won't lap as I want to upgrade to Broadwell-E down the road.

 

[BonzaiDuck]

I won't lap as I want to upgrade to Broadwell-E down the road.

Makes sense . . .

But that's why we were saying H2O/radiators would be a good idea. No fishing around for extra grains of rice to get temperature reductions. . .

Ha! I saw recently where some guy on E-Bay was selling his used i7-2700K, displaying a photo of the processor with bare copper heatspreader -- which means it was lapped. He was promoting it with the assertion that "it overclocks to 5.0 Ghz really well!" I'll bet he's still waiting for someone to bite!

 

[Lepton87]

Makes sense . . .

But that's why we were saying H2O/radiators would be a good idea. No fishing around for extra grains of rice to get temperature reductions. . .

Ha! I saw recently where some guy on E-Bay was selling his used i7-2700K, displaying a photo of the processor with bare copper heatspreader -- which means it was lapped. He was promoting it with the assertion that "it overclocks to 5.0 Ghz really well!" I'll bet he's still waiting for someone to bite!

I sold a lapped E6400 without any problems, I also bought a used 2600K and the guy was saying that it overclocks to 5.1GHz, of course he was full of shit, it overclocked quite well, 4.8GHz but that's nowhere near 5.1GHz. I'm trying to sell this CPU.

 

[BonzaiDuck]

I sold a lapped E6400 without any problems, I also bought a used 2600K and the guy was saying that it overclocks to 5.1GHz, of course he was full of shit, it overclocked quite well, 4.8GHz but that's nowhere near 5.1GHz. I'm trying to sell this CPU.

Yeah . . . I would just wonder if he pushed that 5.1 Ghz story, how much he might have overvolted it for his "quick benchmark." My educated guess is that the processor was just A-OK. The volts you mentioned sometime earlier fit a pretty standard 2600K profile. Mine goes to 4.8 with that sort of VCORE. You seemed to indicate that it was holding up pretty well . . .

It proves you can take a risk in buying used stuff, though -- and get a good deal. Sometimes . . .

 

[Lepton87]

Yeah . . . I would just wonder if he pushed that 5.1 Ghz story, how much he might have overvolted it for his "quick benchmark." My educated guess is that the processor was just A-OK. The volts you mentioned sometime earlier fit a pretty standard 2600K profile. Mine goes to 4.8 with that sort of VCORE. You seemed to indicate that it was holding up pretty well . . .

It proves you can take a risk in buying used stuff, though -- and get a good deal. Sometimes . . .

Yeah, the CPU was actually better than average.

BTW. Due to the temperature I had to reduce the overclock to 4.25GHz so I finally decided to build my watercooler. Here is the thread I made about it:
http://forums.anandtech.com/showthread.php?t=2407453

If you want to help me I'll be grateful.

 

[BonzaiDuck]

Yeah, the CPU was actually better than average.

BTW. Due to the temperature I had to reduce the overclock to 4.25GHz so I finally decided to build my watercooler. Here is the thread I made about it:
http://forums.anandtech.com/showthread.php?t=2407453

If you want to help me I'll be grateful.

Funny! I stumbled onto your 5820K "Cases & Cooling" thread on my own, and posted already!

What are the thermals for that 4.25Ghz OC again, if you run the OCCT "OCCT:CPU" test?

 

[Lepton87]

Funny! I stumbled onto your 5820K "Cases & Cooling" thread on my own, and posted already!

What are the thermals for that 4.25Ghz OC again, if you run the OCCT "OCCT:CPU" test?

96C, far too hot, waiting for my water-cooling parts. Unfortunately I'm going to have to wait over a week for a pump and the reservoir for the pump I've just bought IC DIAMOND but I won't bother reapplying, I'll just wait for that water-cooler.

 

[BonzaiDuck]

96C, far too hot, waiting for my water-cooling parts. Unfortunately I'm going to have to wait over a week for a pump and the reservoir for the pump I've just bought IC DIAMOND but I won't bother reapplying, I'll just wait for that water-cooler.

Because it's "all about nano-diamond particles," you can re-use an IC Diamond application. You might want to add the tiniest drop of silicon-grease-based TIM just to refresh it a bit. Or just add a touch more of the IC diamond -- not much.

I'd say 96C is far too hot myself, but then -- that's only going to occur under stress-test loads. But it proves something: even the best air-coolers are insufficient for getting decent clocks on these E processors.

I hope all your parts fit. Take your time. Test thoroughly.