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4.0Ghz C2D

VirtualLarry

VirtualLarry

No Lifer
Just curious if anyone has reached the 4.0Ghz mark with a C2D.

What chip model and stepping? What kind of voltage is needed? What kind of cooling?

After all, Anand hit 4Ghz on air, on two CPUs (one only to 3.9Ghz).

The thing is, I don't recall seeing anyone in the forum mentioning hitting 4Ghz on air. But for my next build, I want to do it. Planning on getting a Gigabyte GA-P35-DS3R. Wondering what CPU to get that would give me a guaranteed 4Ghz.

Edit: found some data-points here. Three OCs over 4Ghz, all have vcore 1.62-1.65v, and using water or phase cooling.
Since the P35-DS3R only supports max 1.6vcore (has a setting for 1.8 and 2.0, but reportedly they are bugged), I guess perhaps I'm not going to be able to after all.
Then again, I've read a couple of reports of people hitting 3.7Ghz on stock voltage. Surely those chips should be able to hit 4 without much more vcore.
 
Sure, maybe with an E6600 or X6800 from a good batch and a really good watercooling system.
 
the E6850 and E4400 have 10x multiplyers and i think that on P35 boards or X38 boards they are more likely to be stable at 400MHz FSB (400x10 = 4GHz)

the P35 has shown it can do well over 500 MHz FSB and the X38 boards should be even better OverClockers
 
Originally posted by: Borealis7
the E6850 and E4400 have 10x multiplyers and i think that on P35 boards or X38 boards they are more likely to be stable at 400MHz FSB (400x10 = 4GHz)

the P35 has shown it can do well over 500 MHz FSB and the X38 boards should be even better OverClockers
Click to expand...

The E4xxx series are not very good overclockers, they are never going to reach 4.0GHz.

The E6850 has a 9x mutiplier, but I think it has a good chance of reaching 3.0GHz.
 
doh! yes i just noticed that mistake and by the time i came 'round to edit it you already posted...

anyways the E6850 starts at 3GHz, but thats off topic.

so anyways, i still think that with new board chipsets, 4GHz is getting closer.

BTW...about the E4x00 serious, what ever happend to that E4300 that performed like an X6700 on Anandtech's article? that started a whole wave of people who bought the CPU and OCed it.

Is it History Repeating with the E2160?
major tech site takes it to extreme performence, people flock to buy the chip, and get disappointed?
 
just hold out for penryn man. they may not oc to 4ghz, but they're supposed to perform better per clock than the current conroe and allendale chips so you wouldn't have to overclock it that high to get that kind of performance. plus it wouldn't be as hot.
 
I've only seen 1 watercooled and stable 4.0 ghz conroe. They are VERY rare and hard to come by.

Once you get into phasechange cooling, you should easily see 4.0 for 24/7 use.

I have a 6700 that is 4.0 ghz capable and orthos tested for 14-16 hours on phase.

The better chips can do 4.2-4.3 on phase for 24/7 use.

But it appears the new 6X50 chips will be able to get in the 3.7 to 3.9 range on water/air for 24/7.

These will be nice to get before penryn comes out.
 
Originally posted by: Extelleron
<div class="FTQUOTE"><begin quote>Originally posted by: Borealis7
the E6850 and E4400 have 10x multiplyers and i think that on P35 boards or X38 boards they are more likely to be stable at 400MHz FSB (400x10 = 4GHz)

the P35 has shown it can do well over 500 MHz FSB and the X38 boards should be even better OverClockers</end></div>

The E4xxx series are not very good overclockers, they are never going to reach 4.0GHz.

The E6850 has a 9x mutiplier, but I think it has a good chance of reaching 3.0GHz.
Click to expand...
I agree. There is a very good chance that the e6850 will reach 3.0 ghz...every time it is turned on.
 
You might be able to hit that on air with a G0 stepping 6xxx series C2D when they are available. You'll still need a board that can hit high FSB speeds, so you'll probably need a P35-based board.
 
People are expecting wonders from the new G0 steppings that will appear in July. The temperature threshold has been increased by 9.7­°C for the QX6800 (link) - not sure if the exact same applies to the Q6600 G0 or it will be slightly different for that.

The 1333FSB Core 2 Duo E6x50s (also G0 stepping) are expected to be magical overclockers, capable of very high FSB speeds and relatively easy overclocks in the 3.6GHz-3.8GHz range (on air). Of course, the catch is that all the guys with these chips posting in high-profile overclocking forums seem to be 'connected' & well-known who get pre-release Engineering Samples. It's possible these are cherry-picked to generate positive pre-release buzz. The best answer is to follow up on more mainstream forums like these (where most people buy Retail CPUs) to get a better picture.
 
Honestly, without extremely good [very good water+] cooling, or ridiculously good luck with a cream of the crop chip, it ain't gonna happen.

My E6600 actually could do 4 GHz if i had much better cooling & was willing to pump the vcore into it, as i could do 3.9 GHz when i had my Coolit Freezone, & that was around 1.55-1.6V IIRC.

But my particular chip's issue is heat, as it runs hot even undervolted.
 
My first e6600 could hit 3.73ghz with just over 1.5v in bios stable, ran a little hot but ran stable in orthos for 8 hours so. I never tried to go much more because of the amount of voltage and heat it created.
 
My e6600 on my eVGA 680i mobo is a particularly ?bad? CPU... in the sense that it requires a very high V "just" to reach 3600 Mhz. Anyhow at the end of the day it can reach it as long as you are willing to pump enough voltage and have the cooling for it.

Anandtech routinely tests their x6800 when they review various Heatsinks and that chip can easily reach 3900mhz stable from what they say on air. I can only dream of an every day speed like that but as others pointed out there, I am salivating at the thought of the newer 6850 chips to see what they are capable off.

The e6850 STARTS at 3.0Ghz... stock. Please please let it have some headroom... if it doesn?t do 4.0 oc?ing it, 3.8 would still make we want one really bad. I can't see any of the quad cores go that high but we are seriously due for a 4.0 soonish. This could be a very good summer.
 
3.5GHz was my target with my E6300 but I fell quite a bit short of that (mainly due to my memory maxing out on me).

I am planning on getting some better memory and seeing if I can take this L2 Stepping closer there.

I was also considering changing my CPU for an E6600 OR a Q6600 when the prices fall on July 22. What's the take on this (I'm a gamer)?
 
Originally posted by: nyker96
<div class="FTQUOTE"><begin quote>Originally posted by: Nathelion
If you put your computer in a refrigerator, maybe?</end quote></div>

funny one!
Click to expand...

um... phasechange cooling uses a compressor just like the ones you'd find from a refrigerator.

also, people have stuck their computer into a refrigerator before... so as much as you may find it funny.... people have done it. 🙂
 
Originally posted by: theprodigalrebel
People are expecting wonders from the new G0 steppings that will appear in July. The temperature threshold has been increased by 9.7­°C for the QX6800 (link) - not sure if the exact same applies to the Q6600 G0 or it will be slightly different for that.

The 1333FSB Core 2 Duo E6x50s (also G0 stepping) are expected to be magical overclockers, capable of very high FSB speeds and relatively easy overclocks in the 3.6GHz-3.8GHz range (on air). Of course, the catch is that all the guys with these chips posting in high-profile overclocking forums seem to be 'connected' & well-known who get pre-release Engineering Samples. It's possible these are cherry-picked to generate positive pre-release buzz. The best answer is to follow up on more mainstream forums like these (where most people buy Retail CPUs) to get a better picture.
Click to expand...

i agree.

a lot of them have ES's... and they have to have ES's. In most cases the ES's appear to be cherry picked... but the retail ones end up being good if not better eventually

look at the L627/28/29/30/31B chips and L630A chips... they overclocked really well.

one disadvantage that the 6X00 ES's had over the retail ones was that the retail ones were actually slightly faster.. the B2 revision was faster than the B1 revision (ES).
 
Originally posted by: aka1nas
You might be able to hit that on air with a G0 stepping 6xxx series C2D when they are available. You'll still need a board that can hit high FSB speeds, so you'll probably need a P35-based board.
Click to expand...

with the 6850 or even 6750, the 965 is sufficient.

6750 = 8 x 333. so for 3.6, you need 8 x 450 and pretty much every 965 board can do that.

no new board is necessary.... only a bios update to support G0 revision
 
With the influx of more games on the way scheduled to make use of 4 cores, would it be a good idea for me to get a C2Q at this point?

Also, with my Tuniq Tower 120, how high can I expect to overclock a Q6600 from 2.4GHz?
 
Originally posted by: Cheex
3.5GHz was my target with my E6300 but I fell quite a bit short of that (mainly due to my memory maxing out on me).

I am planning on getting some better memory and seeing if I can take this L2 Stepping closer there.

I was also considering changing my CPU for an E6600 OR a Q6600 when the prices fall on July 22. What's the take on this (I'm a gamer)?
Click to expand...

you won't need a Q6600 for gaming.

E6600 is good enough and should allow a little more headroom vs. the Q6600.
 
Originally posted by: Cheex
With the influx of more games on the way scheduled to make use of 4 cores, would it be a good idea for me to get a C2Q at this point?

Also, with my Tuniq Tower 120, how high can I expect to overclock a Q6600 from 2.4GHz?
Click to expand...

Just wait for Penryn. Clock for clock it'll be faster than the C2Q.

By the time quadcore games show up, penryn will be out and about... I say wait 🙂
 
So I guess I should just be content with my E6300 for now then until say Christmas or early '08....

I just need to get me better memory and relax for a bit huh?
 
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