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Old 05-02-08, 03:07 PM   #241
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Default Re: Kentsfield/Quad-Core Overclocking Thread

Quote:
Originally Posted by H3avyM3tal
Can these crashes harm the cpu? or other hardware?
It's not any good for the data on your hard drive. I don't know that it specifically damages any other hardware beyond the usual extra wear and tear associated with overclocking, but hard shutdowns or app crashes are generally to be avoided if you value whatever is stored on the system.
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Old 05-02-08, 07:18 PM   #242
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Default Re: Kentsfield/Quad-Core Overclocking Thread

Well, I managed an OC of the following, with 4 hours stable in prime95 (shut it down afterwards), 1.42 in bios, and 1.38 or so under load. Temps were 67-69 highest in orthos, which is ok since the cpu would never be stressed like this normally. Also, I can manage 450 or 400x9 OC, but it only got me 100 or so points in 3dmark06 (just random observation), and it actually feels slower than 3.4 or 3.2 even... weird.

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Old 05-03-08, 06:11 PM   #243
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Default Re: Kentsfield/Quad-Core Overclocking Thread

With my new Ultra 120 Extreme and Scythe fan I'm able to run my Q6600 at 3.6GHz. I'm using 9x400 with the ram locked at 1000MHz and my vcore set to 1.4 in the BIOS. Seems stable so far. I've not had any problems in games or applications so far. I ran prime95 for a few minutes just to see what the max load temps were and core0 (the hottest one) would hover around 64-65. The CPU idles around 45C on core0.

Using the stock HSF core0 idled around 42C at stock speeds so I'm very happy with this HSF combo. I'm guessing the temperature difference between the cores is a result one of any combination of 1) uneven compound spread 2) uneven spreader surface 3) uneven HS surface. Core0 is always the hottest and core1 is usually about 2-5C cooler than core0. Cores2 and 3 are sometimes almost 10C cooler than the others. Any additional thoughts on that?
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Old 05-03-08, 08:04 PM   #244
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Default Re: Kentsfield/Quad-Core Overclocking Thread

Running 3.6. Absolutely stable since I got it 6 months ago.
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Old 05-11-08, 02:03 PM   #245
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Default Re: Kentsfield/Quad-Core Overclocking Thread

Quote:
Originally Posted by brady
With my new Ultra 120 Extreme and Scythe fan I'm able to run my Q6600 at 3.6GHz. I'm using 9x400 with the ram locked at 1000MHz and my vcore set to 1.4 in the BIOS. Seems stable so far. I've not had any problems in games or applications so far. I ran prime95 for a few minutes just to see what the max load temps were and core0 (the hottest one) would hover around 64-65. The CPU idles around 45C on core0.

Using the stock HSF core0 idled around 42C at stock speeds so I'm very happy with this HSF combo. I'm guessing the temperature difference between the cores is a result one of any combination of 1) uneven compound spread 2) uneven spreader surface 3) uneven HS surface. Core0 is always the hottest and core1 is usually about 2-5C cooler than core0. Cores2 and 3 are sometimes almost 10C cooler than the others. Any additional thoughts on that?
Are you using the "F" version of the fan? I went with a Scythe Kama which is about equal to the "E" variant except it has the 4 pin header on it. I had mine up to 3.3ghz P95 stable, but when I was playing a game it ended up locking up on me so I had to back it down to 3Ghz again. I think the extra heat from the 8800GTXs that wasn't present when I was running P95 caused it to cross the threshold.

Mine temps show core 0 and 1 at 63C and cores 2 and 3 at always 5C less. I'm thinking I'm going to try either a different fan or see if I can get it stable with a lower voltage. I'm not sure about Idle but I want to say under 40C. I need to play with it some more and see what I can do. That was with 1.45V in the bios. (I think it's 1.4V in CPU-Z) During P95 the Vdroop is pretty crazy as I think I saw it hit 1.33V running P95.
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Old 10-14-08, 02:17 PM   #246
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Default Re: Kentsfield/Quad-Core Overclocking Thread

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Yea, I would be pissed too if I could ONLY get a 33% overclock...

I'm hoping to get 3.0 stable once my stuff comes in. Anything above that is just bonus.
I have solution for ya. I have q6700 running at 3333Mhz and maybe this will give you idea.

On i780SLI Chipset the following settings i have.

default multiplayer is left to 10X
Changed FSB to 333Mhz@1333
Raised CPU voltage to 1.38 due voltage drop runs at 1.34
C1 disabled, Thermal options disabled.
Voltage for memory, chipset etc left to AUTO
Now here is trick FSB-Memory Ratio. I set to Linked, and then next option to Sync, so my DDR2-800 is running at 666Mhz. Set timing to AUTO, and mobo should set it to better timing.
Mine changed from default 5-5-5-10 2T to 4-4-4-12 1T. I get better score in Vista then running at 800Mhz with 5-5-5-10-2T. I run 2x2 GB Gskill + 2x1 GSkill memory, so total is 6Gb.

Max CPU temperature i have seen was 58C.


Everything is super stable.
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Old 10-14-08, 04:08 PM   #247
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Default Re: Kentsfield/Quad-Core Overclocking Thread

Interestingly, since I got this processor I've seen a number of other people running it on the same or very similar Gigabyte boards at about the same speed I am. I may have been looking at too many hardcore overclockers forums to gauge what speeds I should be getting.

I probably wouldn't have run it much faster than 3.2 Ghz 24/7 anyway, but I wanted to see how fast it could go and when it topped out at barely better than 3.2 Ghz I was disappointed. Ah well, once I got past the initial overclocking stage with this hardware it's been great. Of course, it ought to be since I spent more on it than I probably had all of my previous rigs combined.
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Old 12-29-08, 09:29 PM   #248
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Default Re: Kentsfield/Quad-Core Overclocking Thread

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Old 12-30-08, 05:23 PM   #249
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Default Re: Kentsfield/Quad-Core Overclocking Thread

IMO if you want to go for decent OC with a Q6600 G0 try P35 or P45.

I was able to take my Q6600 G0 to 3.6GHz 1.46v or 3.8GHz if I used 1.55v on P35. Things like CPU VTT are extremely important when you pass a 411 or so FSB. NB voltage eventually becomes important too. If your ram has an extremely tight tRFC setting like 21 it could inhibit your OC too. While search for max stay on a 1:1 ratio 5-5-5-15 tRFC 54-56. Tighten later after you've found your max. Also make sure you manually set your ram voltage. A lot of boards under volt performance ram. If your ram needs 2.0v and is getting 1.8v that could be problematic. Below is an old post explaining how I got 3.8GHz on air using a cheap ass IP35-E mobo-

XXXXXXXXXXXXXXXXXX

Here's exactly how I am doing 3.8GHz with a Q6600 G-0 + the IP35-E and because it works for me does not mean it would for you. Hardware OC = luck of the draw.

Stay on a 1:1 CPU|ram ratio to squeeze those last MHz out so, 400FSB should = DDR2 800. I am @ 423x9.

Memory-

Start relaxed, 5-5-5-15. You can tighten later when you are sure you are stable. tRFC should be between 42-56 and no lower for the best stability. Make sure your ram is getting the proper voltage. If it supposed to have 2.0v set that, do not leave it on auto. Stay on 2T. If you want 4Gb ram go with 2 stick vs 4x 1Gb.

CPU Settings-

Vcore- 1.54v ( You best have damn good cooling, and you may want to go water. IMO 1.46v should get you 3.6GHz with a Q6600 G-0) For a Wolfdale stay between 1.36-1.40v max IMO.
*CPU VTT- 1.2375 *This is critical for quad OC
ICH- 1.60v
MCH- 1.33v(if you are only going 400x9 leave this @ stock voltage)
CPU GTLREF 67%
PCI-e 100 for best stability

Virtualization- disabled.

C1E and EIST are optional. Leave them on if they don't cause problems because they will help keep your rig cool.

Direct a small fan at your PWM heatsink area or mount a fan on it, if you care to bother.

I am using the Thermalright Ultra Extreme with Arctic silver 5 and quality 120mm fans. One is pushing air into the HS and the other pulling it out. I also lapped my HS base and the CPU for an added edge.

I have two 120mm Sharkoon Golfball Fans in push pull on my Thermalright ultra extreme. The fan facing the front of my case pushes air into the heatsink and the fan on the rear pulls air out. You may need to place something akin to silicon noise dampeners on the rear fan to stop it from brushing the HS.

HS-
http://www.heatsinkfactory.com/therm...r-p-16580.html

These are the fans I'm using-

http://www.performance-pcs.com/catal...ducts_id=20832

I secured them with zipties and control them with a Sunbeam rheobus-

http://www.pcextreme.com/catalog/sku/bus-54.html

A brief detail on lapping-
http://www.pcstats.com/articleview.cfm?articleID=82

http://forum.overclock3d.net/showthread.php?t=4735

You may google "lapping your CPU" if you don't find the above links useful enough.

Also connect your components to good clean power, or that is a quality PSU. That has helped me more with overclocking than you might think.

If you're using Vista get SP1 RC, and read this-

http://www.pcstats.com/articleview.cfm?articleID=2238

Good luck.
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Old 12-31-08, 08:40 PM   #250
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Default Re: Kentsfield/Quad-Core Overclocking Thread

what VID is your Q6600?
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