3770k Questions....

[my87csx481]

I picked up a 3770k on an impulse....to sorta' replace a 2600k.

Read through an article on Tom's about it....heat issues, overclocking throttling, and stuff.

What do you guys think, should I return the cpu? I have not opened it yet, so I'm pretty sure that this is still an option.

The plan was to run it on a Z68 board under an NH-D14. (I have not yet water cooled anything.)

Just curious what others have to say.

[andressergio]

I picked up a 3770k on an impulse....to sorta' replace a 2600k.

Read through an article on Tom's about it....heat issues, overclocking throttling, and stuff.

What do you guys think, should I return the cpu? I have not opened it yet, so I'm pretty sure that this is still an option.

The plan was to run it on a Z68 board under an NH-D14. (I have not yet water cooled anything.)

Just curious what others have to say.

lol i elaborated a good reply then i hit the wrong button and gone lol

i was saying that give it a try, i had a 3570K at 5GHz on the MIVE P67 B3 you will be amazed by the mem speeds

and YES its hot but you can always remove the IHS wich is very easy and 10C less...

IVY is faster clock to clock than Sandy

you have all the guides in the forums to remove IHS and you can always ask us

cheers
Sergio

[shoota]

ditto. or save your time and trouble and just run sandy until something obliterates it. Otherwise it will take a long time to make up for the purchase price in watts saved.

[OldChap]

Performance clock for clock is within a few percent.....power use is less but this time by 10+ percent depending on clock could be better still.

For me I would say that if you are prepared to de-lid it then yep keep it .... If you are happy with running at 4.5-4.7 yep keep it provided your ambients do not go higher than 30°.

If you want to run faster or cooler then the 2700K is likely the better choice at the cost of more power use.

I have both with another 3770K incoming but I would have no issues running another 2600K or 2700K

From a crunching point of view nothing changes but from a High overclock point of view I would probably favour the 3770K as being more certain to get 5.0+ provided you can cool it

[ChaosAD]

I have read somewhere that IB, although 5-10% faster than SB in general, has the same efficiency in folding. Oldchap do you have any comparison between the two?

[OldChap]

I don't have power numbers just now as I changed ram in the SB to make the rigs more alike but post 3 Here may guide you on performance

Revised power numbers will be appended to that thread this weekend

[itznfb]

I have read somewhere that IB, although 5-10% faster than SB in general, has the same efficiency in folding. Oldchap do you have any comparison between the two?

Clock for clock the Ivy gave me 10~12% energy improvement from the wall. I didn't see any gain in performance. SB and IB were matched on result time and points generated. Most SB will clock much higher giving more points and faster results but consume more power. So you have to decide whether you want more points or save on energy.

[Conquistador SW]

I made a comparison between my 2600K + P8Z68-V PRO and 3770K + P8Z77-V PRO. The rest of the rig is exactly the same (see the top rig in my signature). Also same build of BOINC and same windows installation.
I took the running time and points from 14 consecutive days from the WCG site for the machine.

----------------------- 2600K 4.6Ghz 1.34v ------------ 3770K 4.7Ghz 1.30v

Total points----------------------- 594417--------------------------602568
Total runtime (hours)-----------------2451----------------------------2295
Points/day--------------------------46563---------------------------50409
Power at wall------------------------280W---------------------------240W

This means my 3770K generates 8.3% more points with a 2.2% higher clockspeed at 40W average less power consumtion.

The only thing to reach these clockspeeds with my 3770K I needed to delid it. It would not be stable at 4.7Ghz without new TIM between the IHS and PCB because it would reach 90C and I could not increase the voltage to the needed 1.30v to get it stable without it throttling. Now temperature never exceed 70C even with 32C ambient temperatures.

[my87csx481]

What are you cooling the 2600K with?

[Conquistador SW]

Look at my top rig in my signature. I just replaced MB and CPU, so everything else is exactly the same.

[my87csx481]

Thanks for the response.

As far as delidding, I've never done this before. I have a socket 775 P4 around here somewhere....would this be a suitable piece to practice "cutting" off the IHS? I've watched a youtube video on this and I'm afraid of cutting through traces. Anyone have any links to known good tutorials? What's a good TIM to use between the chip and the IHS? Whatever I currently use for IHS to heatsink interface?

Why not cut through the side of the IHS somehow, instead of trying to separate the IHS from the chip? Just curious if there's a known reason.

Thanks for any suggestions.

[Conquistador SW]

Are P4 not soldered? If they are, then it will be really hard to delid it and not be much like delidding a 3770K.

I think this is the best tutorial out there, but don't expect to do it as quick as he does it: http://www.youtube.com/watch?v=yCW508yl_Eg (Just don't do it like this ...... http://www.youtube.com/watch?v=lMzzU...eature=related)

The best advice I can give is to find the thinnest razor blade or other knife you can find. To prevent cutting traces keep the blade as flat against the PCB as possible. I used a blade I got from dissasembling a razor like this:


A pictures from after the surgery and of the blade I used:


I think the best TIM is probably coollaboratory liquid pro (I got 20C lower temps), but with any decent TIM you should get a nice temperature decrease. Just don't forget to clean of the black glue between the IHS and PCB:


And just to brag a bit this are the temperatures I get while running boinc:

[my87csx481]

Thanks again. I'm reading through this thread now.

I don't know if P4's are soldered. Anyone know if P4's are soldered? I'll see if I can find out.

Thanks for the input and pics.

How did you take off the black stuff?

[Conquistador SW]

Ah, that is a good thread to read (I posted in it with my troubles haha)

I just scraped of the black stuff with the same razor blade.

[OldChap]

................

And just to brag a bit this are the temperatures I get while running boinc:

What ambients??? and is that on this one??? 3770K 4.7Ghz 1.29v / ASUS P8Z77-V PRO / 8GB DDR3 1600 8-8-8-24 / XFX GTX260 XXX / Antec NeoHE 550 / Samsung 830 256GB Crunching Cooled by PA120.3, EK-HF, D-tek Fuzion GFX, DDC3.1 XSPC res/top

[Conquistador SW]

What ambients??? and is that on this one??? 3770K 4.7Ghz 1.29v / ASUS P8Z77-V PRO / 8GB DDR3 1600 8-8-8-24 / XFX GTX260 XXX / Antec NeoHE 550 / Samsung 830 256GB Crunching Cooled by PA120.3, EK-HF, D-tek Fuzion GFX, DDC3.1 XSPC res/top

That was with ambient 18C, so somewhat cold. Normally it is about 5C warmer on average.

And it is indeed that computer in my signature.

[werdwerdus]

just go to the drugstore and buy a "safety razor" blade. They are very thin, just tape up one side so you can hold it firm.

[my87csx481]

Thanks for the info.