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4Ghz Q9550 + Abit Quad GT IX38 Have either? Post your OC!

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May 11, 2010 7:38:20 AM

Hey guys,

I'm curious of your guys' OC(overclock) experience with the Q9550 and/or Abit QuadGT IX38. I'm somewhat of a newbie to the OC section/era. I have experience overclocking an E8400 to 4ghz @ 1.36vcore ~447mhz FSB (much easier than this 4ghz OC) on this same board and this experience below.

I started using the Q9550 at a surprisingly efficient (and lucky) OC of 3.6 on stock voltages. Prime95 stayed in the high 40c area and the CPU idled in low 30s using the Zalman 9700 110mm. This is with speedstep and C1E enabled.

I then took it to 3.8ghz, turning off speedstep and C1E, and raising the voltage from stock VID of 1.2375v to ~1.26v.

My FSB was being limited at around 447. After being satisfied with 3.8 for a while I then crossfired a 4890 with my current 4870 1GB. This made me want to push my CPU a little further. I then turned off Thermal Control along with leaving C1E and Speedstep disabled.

I started playing with the VTT and the NB(MCH) voltage and the Q9550 started to stretch its legs, and I came to a OC of the following (I'll include ram this time, and this can also be viewed my sig)

*Note* These settings are what I enter into the BIOS! *Note*

FSB: 470mhz 8.5x
CPU Vcore: ~1.32v
VTT: 1.2v
NB(MCH): 1.42v
DDR2Voltage: 2.1v (Max voltage for my ram, according to G.Skill)
[All other voltages are on default settings]
RAM Timings: 5-5-5-13-48-T2
RAM Ratio/Speed: 1:1 = 470mhz = DDR2-940

Temperatures during Prime95 (yes, I'm prime95 stable).

CPU: 60c
CPU Cores: ~57c
PWM(Chipset): 55c-65c(max)

So yeah, what did you guys get using the Q9550 and/OR the Abit Quad GT IX38. Whether you increased none of the voltages or all of the voltages, please post!

Even if you have knowledge of these current temps / settings and can answer what the max 'safe' voltages are for NB/VTT, and temps for the chipset(PWM), whether it be Abit Quad GT or not (but be sure to specify). Any comments or anything you would improve, please share.

I understand intel specified max VTT (not sure if this is 'max safe' or not) is 1.45v. I also hear most people use around 1.4vNB, and max out 1.5v, is this accurate?

Thanks!







*Note* Images are on idle with lowered/regular CPU fanspeed, and ignore CoreTemp's Mhz/Multi readings (which is why I included CPU-Z in the pic) *Note*
May 12, 2010 3:30:51 AM

Nobody eh?

*cough*bump*cough*
a b K Overclocking
May 14, 2010 2:05:28 PM

Well personally, i don't think it would be plausible that anyone would have had stock Voltages @ 3.6 GHZ...

I don't own this chip myself but its a pretty nice OC well done...:D 
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May 14, 2010 6:30:15 PM

Yeah I got extremely lucky with my 3.6 on stock, 3.4 is usually the average.

The CPU had a higher VID of 1.23 maybe that had something to do with it.

And thanks. :) 
a b K Overclocking
May 14, 2010 7:23:12 PM

Yeah, maybe the VID did have something to do with it...

don't mention it man:D 
June 7, 2010 8:36:17 AM

i managed to get 3.4 on my Q9550 E0 on stock voltages but since im still learning about OCing i might get higher


im using a Foxconn P43 A01 mobo ( from the mind at a monday sucks :p )
June 7, 2010 10:36:34 AM

ill check the settings and tweak it some more when i get home later today and post the findings here
a b K Overclocking
June 7, 2010 12:52:12 PM

lol, P43 Chipsets Represent!

Dig the Avatar Daem
June 7, 2010 12:56:34 PM

gehe yeh P43 in tha house

thnx fishhy the lil bugger didnt realize dis iz a jiraff pen :p  haha

but never realized you were sexy inside :p  lol
June 7, 2010 7:07:29 PM

eeuhm sorry looked at the wrong voltage :p  Vcore is still at 1.22-1.23v
June 7, 2010 7:09:01 PM

well im at home now so ill post up my settings and stuff


foxconn P43A (-S) with intel eaglelake P43 chipset

q9550 @ 8.5x400MHz

VID: 1.2750v

i noticed that my vid is higher than the 1.23 you posted but i think that maybe it has something to do with having it set on auto...

dont know for sure since i havent learned about that so much :p  still trying tho

and having said that any tips and tricks on how to improve my knowledge and understanding of OCing are most welcome
June 10, 2010 8:31:22 AM

Depends how far you want to go. :) 

Is 400mhz as high as you can go on your stock vcore? Try adding 5-10mhz at a time until you can't boot or fail a Prime95 test, then back it up a little.

You just have to play with it (If you know what you're doing that is!! Check out the C2D/C2Q Overclocking sticky if you haven't!!).

I could get up to around 450FSB before having to play with my other voltages, vcore was at 1.3v I believe. Actually maybe I needed about .05v extra NB(MCH) voltage but that's about it.

A quick tip would be to set your RAM at the lowest ratio (1:1) and use the highest voltage spec on your packaging/RAM (which is considered safe 24/7 fyi), and maybe settings your timings manually (to looser/higher timings, or timings/mhz you know work). Once you're stable with your CPU then work on your RAM ratio, timings, and/or lowering volts.
June 11, 2010 7:03:39 AM

No it can go a bit higher but i'm not sure how far.
I have a crappy mobo which can not be OCed as much as i would like.
Yesterday i was tinkering with it and i was able to get it to run at 410 MHz but when i tried 415 MHz it would not even post. Fans were spinning HDD too but no vid.

Resetted the CMOS and tried again, same result though. i was planning to OC it to about 450 MHz but im not sure if the mobo will let me

Quote:
You just have to play with it (If you know what you're doing that is!! Check out the C2D/C2Q Overclocking sticky if you haven't!!).


yeah i allready did, read all of the available guides even on old CPU's and AMD CPU's too :p  i like learning this stuff even if i dont have the equipment.

Indeed the lowest possible setting for the DRAM:FSB ratio is 1:1 (allready set it to that) my mobo is a bit tricky for me to single out the right setting to change the voltages to the core and the RAM (if you can or want to help me with that i could make some pics of the BIOS i would be very grateful :D  )
June 12, 2010 6:05:33 PM

Sure! Set up some pics and let us know some specifics. I'm sure other people would love to help as well.
June 12, 2010 7:57:09 PM

fisshy said:
Well personally, i don't think it would be plausible that anyone would have had stock Voltages @ 3.6 GHZ...

I don't own this chip myself but its a pretty nice OC well done...:D 


I was actually able to undervolt my E0 Q9550 @ 3.6ghz when I had it. I only had it for a month or 2, but it was 9 hours prime stable and 50 runs of IBT. The Q9550 runs so much cooler than the new i5/i7s.

To really push this chip you need a P45 UD3P or P5Q.
June 12, 2010 8:47:39 PM

cory1234 said:
I was actually able to undervolt my E0 Q9550 @ 3.6ghz when I had it. I only had it for a month or 2, but it was 9 hours prime stable and 50 runs of IBT. The Q9550 runs so much cooler than the new i5/i7s.

To really push this chip you need a P45 UD3P or P5Q.


Very nice!

Aye, the Q9550 runs very cool. I could keep it under 50c on air @ 3.8ghz ~1.26v. :)  Phenomenal IMO.
June 14, 2010 7:08:20 AM

Quote:
To really push this chip you need a P45 UD3P or P5Q.


Okay nice i will check out the possibilities to aqcuire such a mobo but for now im stuck with my Foxconn :p 

But im still not sure if my mobo can sustain a FSB higher than 410 MHz since this was the highest value before it crashed.

Heard some new tips that could point out that the failure was caused by the RAM so im trying to take that out of the equation before proceeding to OC the CPU some more.

Thanks for the reactions guys will post back if i have some results (or none ofcourse)
a b K Overclocking
June 14, 2010 12:55:26 PM

I will admit, Not much overclocks like those Q6550's! ;) 
June 14, 2010 1:45:16 PM

yeah i heard that before,

the 6550's go like crazy

wasn't that also the case for the 6600 series?
June 14, 2010 5:33:18 PM

Do you mean the E6550? Those were nice. Those ol' C2Ds started a new age of OCing.

You haven't played with an i3 yet have ya? :) 
June 15, 2010 9:07:04 AM

Aye, I had fun with an E8400 myself, got stuck at 4ghz. Thanks to the weak cooler I was using. :/  If I had the cooling I have now I could have seen 4.2.

I can boot into windows with 4.2ghz on my Q9550, but I'd need a cold day and some airflow from outside to get it stable. :) 

Yeah you gotta love Intel's multiplier marketing. :/ 
a b K Overclocking
June 15, 2010 9:07:58 AM

Neh The E6550 Was nothing against the E5200 And the E8400 Both Of them i had chirping along at 4.2Ghz With headroom!


Actually the 65xx series is the 66xx series, just a different clock speed and label;)
June 15, 2010 9:15:59 AM

Quote:
Actually the 65xx series is the 66xx series, just a different clock speed and label;)


lol yeh that explaines the similarities haha

so... and that concludes my lesson for today


But damn 4.2 on a Q9550?

what settings are you using then? or is it really just my mobo that's holding me back
June 16, 2010 7:32:56 AM

I need to set my VTT (FSB Termination Voltage) to 1.4v+ and my NB(MCH) to 1.45v+ to achieve that kind of FSB on my mobo but the CPU can handle it. Vcore is set to ~1.38v for 4.2 to boot into windows. I'd probably need a little more for it to be stable, but the temps don't make it quite worth it to me. I'm trying to keep it somewhat easy on my mobo considering its nearing a couple years old.

You need a quality mobo to hit the FSB needed for the Q9550 to hit the high frequencies, that's probably it.

Remember, all CPUs overclock differently, but most E0s can make it to 4ghz (and beyond) if the mobo/ram/cooling allows it.
June 16, 2010 7:48:31 AM

great, now i've got a little comparison material. Thanks for the respons!

Im not aiming to hit 4ghz (maybe in the near future) but i'm still figuring out how and what all the settings do.
This gives me a little better understanding of what i can expect when kicking it a bit further. Wanted to try and get mine to 3.6 or so maybe 3.8 if the CPU likes it (me? i always like it :p ) temps are sweet n stable at 48-52 at full load with the fan at about 40%.

so what mobo would you recommend?

still think that the biggest limiting factor is my mobo so i'll go and try to pursuade my gf to let me buy a new one :p 
a b K Overclocking
June 16, 2010 7:13:54 PM

anything Gigabyte Using DDR3 Ram ;) 

A nice one is the GA-EP43T-UD3l
Or the GA-EP45T-UD3L If your gf is in a good mood
June 17, 2010 9:19:35 AM

lol yeh WHEN she is in a good mood haha :p 

but the er45t looks good :p  only then i will also need some new RAM since im still running DDR2 which came with the package.

but the GA-ER45T-UD3L isnt that expensive here :p  thought it would be even worse (€109) let my eye fell on these sticks:

GeIL 4 GB DDR3-1333 Kit (Retail, GV34GB1333C7DC) any comments or suggestions are more than welcome :) 
http://www.alternate.nl/html/product/Geheugen_DDR3-1333...

Sorry its a dutch site :p 
June 17, 2010 4:43:54 PM

I have to say I scanned through the posts, and only saw it talked about once... I don't take my VTT past 1.4v, from what I have read on the net, anything above that will bake the 45nm CPU's.... Since I am on a tight budget, I have stuck to that rule with my Q9550, the end doesn't justify the means (for me).

I run my Q9550 @ 3.2Ghz, That speed is good enough for me at the current time... Now when I step up to a new CPU, I will OC the ba'jesus out of it :) .

Take it as a grain of salt, best of luck :) 
a b K Overclocking
June 17, 2010 5:35:10 PM

My plan as well...
June 17, 2010 8:33:47 PM

sounds good guys thanx for the replies!

Ill keep that in mind :p  i (like you tkrl) do not want to make fried shrimps out my Q9550 :p  just wanted to push it a little further but not too far -obviously-.

its running at 3.4 smoothly now so ill think ill keep these settings for 24/7 but maybe for some bragging rights thought of going to 3.8 or so

anyways thanks again
June 19, 2010 6:45:00 AM

Aye.

Remember, if you're getting no real-world performance gain the overclock is good for nothing, but benchmarks. So only go as far as you need for 24/7 use. For me I usually stay around 3.8ghz, which is a lot easier on my mobo. When I play more cpu dependent games like BFBC2 I go to 4ghz, as it helps a little.

tkrl is right about the VTT. I myself use 1.4v as a maximum, and only go that far when I benchmark/show off.
June 21, 2010 6:44:08 AM

That was what i figured too Raidur. the setting im trying to reach are for benchmarking and stuff. im happy with the 3.4 OC for 24/7 as the CAD programs i use on daily base are only optimized for core 2 duo's so it wont even stress the last 2 cores at the moment. The newer version of it is going to be optimised for quads .

As for games i havent got the time for it lately (bummer...) so the only game i've tried so far with the OC settings are Red Faction Guerilla and that seems to like the settings pretty good :D 
!