X3350 / Q9450 Overclocking Thread

[bryanW1995]

what is default vcore on these? What's the high end? Are you at 1.325 in bios or under load?

 

[bryanW1995]

Originally posted by: Markfw900
Here is the latest... Not only does 447 * 8 look stable, but I think I have an FSB wall. It won't even boot windows at 450 1.325 vcore, but 447 was fine, So just for grins, I lowered the cvore to 1.300 in bios, and it still appears stable. If I can do 24 hours more, I will drop it again. I don;t think temps and lack of vcore are my problem, I think the chip doesn't like fsb over 447, and my motherboard testing showed 509 was stable for the memory and the motherboard.

Thoughts ?

try lowering multi to 7x and see if there's a wall there. I have a wall on my e6750 from 450-460, but less than 449 or 461+ works just fine. I freaked out about this to no end when I bought my system but finally gave up trying to solve it. The computer won't post or anything between 450-460,.

 

[Acanthus]

This is why i chose to sit on my hands until i can get a 9x multi for sub $300 for 45nm.

Keep posting mark! I like hearing results from an experienced OCer.

 

[Markfw]

there is an idea !!! But I did try 500, and every 5 down from that when I first got it, and 470 or 475 is where it started posting, and 450 is where it started booting. That was with like 1.35 vcore....

As for the vcore, its 1.3000 in bios. and 1.28 under full load, not bad vdroop on this DS4. Temps still hit 71c...., but 3576 looks stable for an 1/2 hour so far.

BTW, here was my attack plan.

1) Find the motherboard and memory max FSB. This was ~509 with an E6300 know to run @ 500 fsb.
2) Stick the chip in using the highest vcore and volts on the other FSB and GMH and start at 509 and go down by 5 until it posts. This was 470.
3) Then take it down until windows boots, then 3 mhz more each time until F@H was stable.
4) Now turn down the voltages until its not stable. WIP
5) Change the timings to be as tight as possible.

Now not counting running time, I have 2 hours into this OC.

So who thinks the chip has an FSB wall ~ 450 ?

 

[graysky]

Originally posted by: lopri
Q9450 @3.6GHz should equal to Q6600 @4.0GHz. That's a lot of CPU power there. With better cooler you should be able to lower the temps.

Sorry dude, but that statement is just not true... there is only a minor difference between the q9450 and q6600 @ a given clock rate. Using the data from my x264 HD benchmark, you can see between an increase of only 1-5 % - at least when comparing the systems doing an x264 video encode. No way will you see a double digit increases as you're speculating

Here are the comparisons I'm referring to in my 1-5 % increase

 

[Markfw]

Originally posted by: graysky

Originally posted by: lopri
Q9450 @3.6GHz should equal to Q6600 @4.0GHz. That's a lot of CPU power there. With better cooler you should be able to lower the temps.

Sorry dude, but that statement is just not true... there is only a minor difference between the q9450 and q6600 @ a given clock rate. Using the data from my x264 HD benchmark, you can see between an increase of only 1-5 % - at least when comparing the systems doing an x264 video encode. No way will you see a double digit increases as you're speculating

Here are the comparisons I'm referring to in my 1-5 % increase

My F@H observations:
Q6600 ~11:20 / step on a 2653 unit (3510)
X3350 ~10:50 / step on a 2653 unit (3520)

So thats 30 seconds quicker in 11 minutes ? Thats ~5% Right on Graysky !

 

[Tempered81]

Mark, Great job on the overclocking!!! Awesome results.


i'd say its about 3 to 6 percent avg. that would make a 3.6ghz 45nm like a 3750mhz 65nm

btw, that same ratio makes a 4.2ghz 45nm like a 4370mhz 65nm

a guy over at xs has his 3350/9450 testing at 486mhz fsb. He says he posts at 520 and boots windows at 500

 

[bryanW1995]

what mobo/cooling is he using?

 

[Tempered81]

knowing mark, im guessing DQ6 TRUE!

or that is what he will be going to soon enuf


the dude at xs:

http://www.xtremesystems.org/f...howthread.php?t=181781

"I'm sure anyone who has a P35 has a shot at 450 or even 475 stable. I mean... my board is a vanilla G35, I've never done anything but the pencil mod, which I undid a while ago. I'm sure better setups can get better results than this G35.

Edit: And I can P.O.S.T. at 520, too... just that I can barely get into Windows at 500, talk about 520... "

 

[Markfw]

"a guy over at xs has his 3350/9450 testing at 486mhz fsb. He says he posts at 520 and boots windows at 500 "

And is it an ES or retail or OEM or ????

 

[Tempered81]

guess it was a retail

 

[Markfw]

I still want to know what motherboards they have. My DS4 is a almost $200 P35 board, and has done 500 fsb, so how can they do it ? Lucky ??

 

[biostud]

The nForce 790i have been said to handle the high FSB once they come out.

 

[bunnyfubbles]

I'm not going to be able to really push my Q9450 until I get some better cooling situated for my mostfets and northbridge

 

[lopri]

Well maybe not full 400MHz but at least 200~300MHz advantage for Yorks over Kents. Guess it depends on apps as well.

http://www.anandtech.com/cpuch...owdoc.aspx?i=3184&p=12

 

[lopri]

BTW, compare the common folks' Q9450 with AT's QX9650 (cherry?).

http://www.anandtech.com/cpuch...owdoc.aspx?i=3184&p=11

 

[bka4u2c]

Well I got up to 445 with 1.3 also and 1.4 on NB. I tried going to 450 with same settings and Windows blue screened right after desktop loaded. Up NB to 1.425 and got half way through the test. Maybe I'll try 1.45 and see if I can run a full test.

Screenshot

 

[Foxery]

I gave in to the hype and ordered the cheaper Q9300 (Xeon box). Tested my IP35-Pro up to 467mhz just to make sure, so I hope the chip can take it. I will let you know the results next week!

 

[bka4u2c]

450 is a go with 1.45 on NB and another increase in Vcore up to 1.32. I don't want to increase voltages any further on air so I'm going to increase the FSB in small increments to see how far it will go.

Screenshot

 

[bryanW1995]

mark is running his at 1.35 v AND he's running f&h 24/7, so you should be fine at 1.35 or even a little bit higher.

 

[aigomorla]

Originally posted by: lopri
BTW, compare the common folks' Q9450 with AT's QX9650 (cherry?).

http://www.anandtech.com/cpuch...owdoc.aspx?i=3184&p=11

I think my QX can match that. :T


But no.... QX's arent a fair comparison, hence why i was keeping quiet all this time.

 

[Sind]

Originally posted by: bka4u2c
450 is a go with 1.45 on NB and another increase in Vcore up to 1.32. I don't want to increase voltages any further on air so I'm going to increase the FSB in small increments to see how far it will go.

Screenshot

What are you using for cooling?

 

[Acanthus]

Originally posted by: lopri
BTW, compare the common folks' Q9450 with AT's QX9650 (cherry?).

http://www.anandtech.com/cpuch...owdoc.aspx?i=3184&p=11

Higher multiplier.

 

[bka4u2c]

Originally posted by: Sind

Originally posted by: bka4u2c
450 is a go with 1.45 on NB and another increase in Vcore up to 1.32. I don't want to increase voltages any further on air so I'm going to increase the FSB in small increments to see how far it will go.

Screenshot

What are you using for cooling?

Tuniq 120, and not long after I got the board I pulled the pipes off and replaced the stock paste with Arctic Ceramique. So far I haven't run into a temperature problem. But I plan to break out the Antec Spot fan when I try for a higher FSB.

 

[tenax]

well after reading the threads here and over at xs..sounds like there maybe some key there to upping only cpu voltage and northbridge..i've been trying to up all and at some times, to levels i'm not sure i like the idea of going to. nbridge levels of 1.55 sound rather high to me by the way. i think my abit shows the stock as 1.25...historically, i've chosen not to go higher than whatever .2 is beyond stock..not sure i want to go .3..don't know if you guys noticed, but in that screenshot over at xs, the guys aux voltage was showing as 110C in speedfan..i "think" that is the northbridge voltage and if so, then he's asking for a fried northbridge.

did some playing around yesterday and have some good cpu-z shots to show you guys that i'll dig up.

bryan, sorry..tried to reply to your pm, but about once a week, it seems AT screws up and i have to clear all my history and logins to be able to reply..plus, i haven't been able to do more than read pms for months now..i get a reply button, but no submit. tried to contact mods here twice..no response so i gave up