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krazy3   10-10-2008 at 03:12:45 PM

I received my Q6600 (and other parts) on Wednesday, and thanks to all the guides posted here, I overclocked it to 3420mhz (380 x 9) at 1.38750v. I idle in the very low 20's, and at full loads I reach about 45C on Core 0.

I do have 1 problem though... When I increase the FSB any higher than 385, the system becomes unstable. I went up as high as 1.4v and I received an error after only 1 minute of stress testing. I wanted to know if I should increase the voltage any more and try for a higher OC, or keep it at its current settings... Any advice as to what I should do?

My System is as follows:

Intel Q6600 Processor (Revision G0)
ASUS P5Q Pro Motherboard
Arctic Cooling Freezer 7 Pro HSF
8gb DDR2-800 G.Skill RAM
3 x 500gb Seagate HDDs
500 watt PSU
GeForce 8800 GS GPU

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br3nd064   10-10-2008 at 10:33:24 PM
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What's your NB voltage set at? You're really not going to see much increase past 3.4ghz, so if it's not stable, I wouldn't bother.

Reply to br3nd064
krazy3   10-11-2008 at 12:00:48 AM
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I have my NB set at auto. I read that this doesn't need to be changed, but correct me if I'm wrong...

Reply to krazy3
JWL3   10-11-2008 at 12:16:44 AM
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This is incredible. I have a Q6600 with G0 stepping on a water cooled rig and my temps are 40 idle/58 full throttle. I only OC'd to 3.0GHZ. What in the heck is wrong with my cooling? I wasted time and money on water cooling and I get much worse results than a $35 artic cooling freezer.

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Reply to JWL3
krazy3   10-11-2008 at 12:46:37 AM
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Oh wow. O.o
My room's fairly cold (22-24C), so maybe that's the issue? I also have a case with a very good airflow (4 fans)

Reply to krazy3
kyeana   10-11-2008 at 01:34:25 AM
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also do you have the tjunction max set properly with whatever monitoring program your using? For a q6600 G0 the tjunction max should be set to 100. That could change the temperature of your cores if set incorrectly. If it is set correctly then major props to you, those are some nice temps.

As for increasing the overclock, personally i dont mind increasing the vcore up to 1.4~1.45 just so long as you can keep the heat off.

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Reply to kyeana
zenmaster   10-11-2008 at 01:34:26 AM
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JWL3 wrote :

This is incredible. I have a Q6600 with G0 stepping on a water cooled rig and my temps are 40 idle/58 full throttle. I only OC'd to 3.0GHZ. What in the heck is wrong with my cooling? I wasted time and money on water cooling and I get much worse results than a $35 artic cooling freezer.



What's your CPU voltage set to?
What Water Cooling unit did you buy? Most "affordable" units are not very good.

------------------------------ If its good in theory but not in practice,
its not good theory.
 Reply to zenmaster
krazy3   10-11-2008 at 02:59:02 AM
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kyeana wrote :

also do you have the tjunction max set properly with whatever monitoring program your using? For a q6600 G0 the tjunction max should be set to 100. That could change the temperature of your cores if set incorrectly. If it is set correctly then major props to you, those are some nice temps.

As for increasing the overclock, personally i dont mind increasing the vcore up to 1.4~1.45 just so long as you can keep the heat off.



I'm using RealTemp with the Tjmax set to 100.

As for overclocking, I'll try getting it higher once I'm back up and running. My computer won't do anything other than supply power to everything since moving to the new case that arrived today, so I'm busy trying to figure out how to fix it. I hope I don't have to send anything back, because it takes a minimum of 4 weeks to ship anything and get it back where I live... I'm a little dismayed that it stopped working as soon as it did.

Reply to krazy3
kyeana   10-11-2008 at 03:47:44 AM
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go ahead and reset the bios on the move to the new case, just to make sure everything works as it should. Also make sure you have the spacers correctly installed so there are no shorts and that the 20/24 pin connector and the 4/8 pin connector are installed.

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Reply to kyeana
krazy3   10-11-2008 at 03:53:00 AM
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kyeana wrote :

go ahead and reset the bios on the move to the new case, just to make sure everything works as it should. Also make sure you have the spacers correctly installed so there are no shorts and that the 20/24 pin connector and the 4/8 pin connector are installed.



I did all of that before moving, and I've had the problem since. Basically, the fans/hdd's/lights/GPU/etc all power on, but the screen remains blank, the mobo doesn't post, and there's no beeps when starting. I've spent the last 5 hours or so working on fixing this... I'll be doing more work on it tomorrow and will hopefully be able to revive it.

I also realize that increasing the NB Voltage might help in stability, so hopefully I'll be running soon and can try to hit 3.6ghz...

Reply to krazy3
Bronze Overclocking badge Shadow703793   10-11-2008 at 03:59:43 AM
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Also by the looks of it you seem to be running 4*2GB DIMMs. You may need to increase the voltage a bit (~+.1) over what you have now. Also try increasing FSB Voltage and if the board has it enable LLC.

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http://farm4.static.flickr.com/3553/3818083596_1a772f7162_o.gif
 Reply to Shadow703793
krazy3   10-11-2008 at 04:10:17 AM
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I would, but I can't even get into bios =/

Reply to krazy3
Asian PingPong   10-11-2008 at 04:14:12 AM
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What case do you have and what is the configuration of your said 4 fans? Those temps are really good!

Message quoted 1 times
------------------------------ "Quad cores are only good for burning CD's"
Q6600 @ 3.3 | Xigmatek HDT-S1283 |
8800gts G92 512mb (756/1890/1044) | GA-P35-DS3L
 Reply to Asian PingPong
krazy3   10-11-2008 at 04:22:30 AM
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Asian PingPong wrote :

What case do you have and what is the configuration of your said 4 fans? Those temps are really good!



I just bought this case. I haven't seen the temps on it yet, but it should be as good, if not better than my previous case which has less air flow. As far as I can tell, the fans are all running as fast as they can go.

Reply to krazy3
roadrunner197069   10-11-2008 at 04:39:46 AM
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Like another poster said! Make sure the 20/24pin power is plugged in and the 4/8 pin for the cpu is plugged in. It sounds like your missing the 4/8 pin cpu power connector. People forget it all the time!!!!!!!!!!!

Reply to roadrunner197069
krazy3   10-11-2008 at 12:35:23 PM
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I've checked both of those several times.

Reply to krazy3
kyeana   10-11-2008 at 03:28:58 PM
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there may be a short somewhere then. See if you can get the system running outside of the case (say on cardboard) and then check anywhere that there might be a short (most likely spacers or fallen screws, etc.)

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Reply to kyeana
krazy3   10-11-2008 at 06:33:34 PM
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kyeana wrote :

there may be a short somewhere then. See if you can get the system running outside of the case (say on cardboard) and then check anywhere that there might be a short (most likely spacers or fallen screws, etc.)



So far I've tried it without a case, in another case, and in the same case, so there's no shorting problems. I've taken out everything other than the CPU and received no warnings, so at this point I've declared the board dead and I'll have to RMA it. I'm pretty upset it only lasted 3 days, but such is life. Hopefully the next board will work... =/

Reply to krazy3
Bronze Overclocking badge Shadow703793   10-12-2008 at 07:59:09 PM
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Have you tried booting with 1 DIMM?

------------------------------ http://farm3.static.flickr.com/2617/3815217176_0a5be7955d_o.gif
http://farm4.static.flickr.com/3553/3818083596_1a772f7162_o.gif
 Reply to Shadow703793
krazy3   10-12-2008 at 09:22:10 PM
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I've tried everything there is to try. Again, I hope I receive a working board...

Reply to krazy3
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