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Overclocking a q9650

8K views 69 replies 7 participants last post by  SmOgER 
#1 ·
Hey dear overclockers

I recently decided to over clock my cpu so i can get more of my GPU in some cases

I overclocked my Cpu with these specs

I found my cpu stable so far at 1.33150 Vcore with 3.46ghz core clock
NB 1.15v ( I had 1.10(standard) 1.15 1.20 1.25 options )
VTT 1.20v ( i had 1.20 and 1.30 options )
SB 1.50 ( i had 1.50 and 1.60 options )

Dram freq : 1228mhz at 8, 8, 8, 22 5:8
voltage : Auto

FSB : 385x9
fsb strap to northbridge : 333
This is my FSB wall with 333 strap

everything else on auto

My pc specs :

CPU: Intel Core2 Quad CPU Q9650 @ 3.00GHz
Motherboard: Asus P5P43TD PRO
Cooler: Gammaxx 200
RAM: 4x2gb Kingston 1333Mhz DDR3
GPU: ASUS STRIX-GTX960-DC2OC-2GD5
PSU: Green 600w-HP Real
Storage: 500GB HDD 7200RPM ST3500418AS Seagate Barracuda

Now i am wondering if i can reach 3.6ghz with your help guys i was looking for help everywhere i could but i think i need more answers

also i think my Vcore voltage is so high can i do anything with it ? well this is my first time overclocking so i dont wanna burn my cpu down
biggrin.gif






ignore the first CPU tab i changed the settings ( as i said top )

Thank you
 
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#2 ·
Whoa, we shouldn't overclock anything with a low-quality PSU powering the computer like that. It could die and kill the whole computer.

And yes, as tpi2007 said, the P43 chipset will also prove to create a frustrating overclocking experience.

Still, it's not safe to overclock with that PSU powering the computer. We don't need to kill the computer or start a fire.
 
#3 ·
Does the motherboard have a 400 FSB strap?

If it doesn't then maybe someone else can help, but I'll tell you straight away that while your CPU is good, the motherboard not so much because the P43 chipset is not exactly the best one to overclock these CPUs. P45 is the best for 1600 FSB and beyond, followed by X38 and X48. 1600 FSB is technically overclocking on the P43, whereas it isn't on the others.

With a Gigabyte P45 motherboard (arguably the best overclocking motherboards, especially the EP45-UD3R) you'd be at 1600 Mhz FSB - 400 Mhz quad pumped - by now.

As a side note, although for 3.6 Ghz it should be fine, those four sticks of RAM are not ideal for overclocking, you should be using one stick per channel.

As to the Vcore, it isn't too high. My Q9550's stock voltage is 1.2875v. It may be a bit high for the speed you're running it at, but then again, silicon lottery and the motherboard in question may not be helping out.
 
#4 ·
Thanks for your answers guys ya mb is not great but as you said its ok for 3.6ghz

and yes i have 200-266-333-400 straps on my bios also updated to 710 version ( its the last version )

my power supply is 600w 80+ bronze what is wrong with that ? :\ its actually one of the best i could find here

I dont really want to overclock my Ram thats why i am trying to keep it around 1333mhz

also i am not so happy with my vcore what should i do
 
#5 ·
Quote:
Originally Posted by Sorena View Post

[my power supply is 600w 80+ bronze what is wrong with that ? :\ its actually one of the best i could find here
Unfortunately, power capacity and certifications like that 80+ Certification aren't ways to judge the quality of a PSU. It's very complex to explain in just one post. The world of PSUs isn't just wattage capacities and 80+ Certifications. It's a huge list of things that can be different. That particular model though isn't safe. The quality of the parts inside just aren't up to it. The quality of the power that it delivers is also inaccurate and unstable, which can translate to very frustrating overclocking - provided that the computer survives.
 
#6 ·
Quote:
Originally Posted by TwoCables View Post

Unfortunately, power capacity and certifications like that 80+ Certification aren't ways to judge the quality of a PSU. It's very complex to explain in just one post. The world of PSUs isn't just wattage capacities and 80+ Certifications. It's a huge list of things that can be different. That particular model though isn't safe. The quality of the parts inside just aren't up to it. The quality of the power that it delivers is also inaccurate and unstable, which can translate to very frustrating overclocking - provided that the computer survives.
yes you are right

this is my power specs but looks ok idk

http://www.green-case.com/products/power/GP600A-HP.html
 
#10 ·
well should i go for 400 straps ? what Dram timing should i choose for 1200MHZ? a bit more voltage ? maybe ? or same

Should i play around other voltages ?

i am getting those temps with pretty hot place 30c

i also added another fan for that gammaxx 200 and air flow should be fine for my case ( 2 Side In - 2 Back Out - 2 on cpu cooler )
 
#11 ·
Quote:
Originally Posted by Jugurnot View Post

I had a Q9650 up to 4.1ghz using around 1.45vcore. I don't have specifics, and it was quite a while ago, also my first overclocking experience. But I also had a decent mobo with it, EVGA 780i FTW, and a big ass aircooler.
Had ? so its dead now ?i am curious to know how well it was
 
#12 ·
Quote:
Originally Posted by Sorena View Post

Had ? so its dead now ?i am curious to know how well it was
No, he's saying that he once overclocked it to 4.1 GHz. We just sometimes say it the way he did. He's not saying that it's dead. He's just saying that he once had it up that high.

For example: I had my 2500K up to 4.8 GHz (but you see, I still have the CPU).

You will never get yours up to 4.0 GHz though, not with that motherboard.
 
#14 ·
Quote:
Originally Posted by Sorena View Post

i tried 400x9 with 1.34ish OCCT found error

i would be really happy if you guys give me some examples to try out

thanks
Did you try slightly higher voltage, say 1.36 ?

What about the RAM speed, what did you set it at? If you underclock it to say 1200 Mhz it shouldn't be much of a problem. It's true that RAM speed affects especially min fps in games, but it should be a decent trade-off if you can lift the CPU bottleneck a bit.
 
#15 ·
Quote:
Originally Posted by tpi2007 View Post

Did you try slightly higher voltage, say 1.36 ?

What about the RAM speed, what did you set it at? If you underclock it to say 1200 Mhz it shouldn't be much of a problem. It's true that RAM speed affects especially min fps in games, but it should be a decent trade-off if you can lift the CPU bottleneck a bit.
Dont you think that Vcore is too much for 3600mhz ? i never seen someone with that much vcore for 3.6ghz idk really i still think there should be something to do to lower the vcore and yes its was on 1200 8,8,8,22
 
#18 ·
Quote:
Originally Posted by Sorena View Post

Quote:
Originally Posted by tpi2007 View Post

Did you try slightly higher voltage, say 1.36 ?

What about the RAM speed, what did you set it at? If you underclock it to say 1200 Mhz it shouldn't be much of a problem. It's true that RAM speed affects especially min fps in games, but it should be a decent trade-off if you can lift the CPU bottleneck a bit.
Dont you think that Vcore is too much for 3600mhz ? i never seen someone with that much vcore for 3.6ghz idk really i still think there should be something to do to lower the vcore and yes its was on 1200 8,8,8,22
In theory, yes, it is. There are some Q9650's that can do 3.6 Ghz at stock voltage ( I assume you tried that already), but as I said and TwoCables also mentioned, that motherboard may not be helping.

The CPU should be safe with 1.36v. Try and see if it works, this is a matter of gaining experience. There are no two equal CPUs and no two equal motherboards.
 
#23 ·
Quote:
Originally Posted by Sorena View Post

well all failed
frown.gif


and what is the stock vcore for this cpu ? 1.2v ?
Sorry to hear about that.

If you set the vcore to Auto or Normal isn't there a line that says what it is?

Loading CPU-Z and putting some load on the CPU at stock settings should give you a fairly good idea what it is.

It can vary, here is the value range: http://ark.intel.com/products/35428/Intel-Core2-Quad-Processor-Q9650-12M-Cache-3_00-GHz-1333-MHz-FSB

One question: did you try overclocking by just raising the FSB and keeping the voltage at stock? How far did you manage to get it?
 
#24 ·
Quote:
Originally Posted by tpi2007 View Post

Sorry to hear about that.

If you set the vcore to Auto or Normal isn't there a line that says what it is?

Loading CPU-Z and putting some load on the CPU at stock settings should give you a fairly good idea what it is.

It can vary, here is the value range: http://ark.intel.com/products/35428/Intel-Core2-Quad-Processor-Q9650-12M-Cache-3_00-GHz-1333-MHz-FSB

One question: did you try overclocking by just raising the FSB and keeping the voltage at stock? How far did you manage to get it?
well i got that around 3.4ghz on auto but i heard that i should not put it on auto idk

and default should be 1.246-1.256 then on full load and 1.12v on min and 1.280v max 3ghz
 
#25 ·
don't forget to play with the other voltages. GTL reference voltages and northbridge voltages etc, it's been a while so I can't quite remember all the settings that I used to get my old Q9550 to 4ghz at 1.36v but GTL refs made all the difference in stability. I had an Asus P5Q Deluxe which was one of the better P45 boards though, so I'm not even sure if you can change those settings on your board.

this post is similar to my settings for 4ghz on my Q9550, http://www.overclock.net/t/410403/p5q-deluxe-q9550-4ghz/0_100#post_4947831 it applies to your's as well but won't need to push things as far, just gives you an indication of what voltages need to be changed. don;t do this unless you are aware of the risks, and accept the fact that your mobo and PSU may not be able to handle it, 3.6ghz should be possible though. (just a note Q9650 and 9550 have diff multi, so yours is .5 higher multi I think, so don't go applying 471FSB for giggles
tongue.gif
unless you want smoke and fire)

your FSB voltage, PLL voltage and NB voltage can probably be kept lower than this, and your CPU cooling may not be up to 1.36v+ (I was on custom water cooling, max temps in high 50"s *c) with your other voltages dialled in though you should be able to drop you vcore to 1.3ish i think. Also I had massive problems getting an overclock stable with 4 sticks of ram in. 2 sticks of ram is rock solid, 4 sticks is unpredicatable, sometimes fine, sometimes won;t even boot. try it with just 2 sticks of ram, and play with all your GTL refs and NB voltages etc
 
#26 ·
Quote:
Originally Posted by LiamG6 View Post

don't forget to play with the other voltages. GTL reference voltages and northbridge voltages etc, it's been a while so I can't quite remember all the settings that I used to get my old Q9550 to 4ghz at 1.36v but GTL refs made all the difference in stability. I had an Asus P5Q Deluxe which was one of the better P45 boards though, so I'm not even sure if you can change those settings on your board.

this post is similar to my settings for 4ghz on my Q9550, http://www.overclock.net/t/410403/p5q-deluxe-q9550-4ghz/0_100#post_4947831 it applies to your's as well but won't need to push things as far, just gives you an indication of what voltages need to be changed. don;t do this unless you are aware of the risks, and accept the fact that your mobo and PSU may not be able to handle it, 3.6ghz should be possible though.

your FSB voltage, PLL voltage and NB voltage can probably be kept lower than this, and your CPU cooling may not be up to 1.36v+ (I was on custom water cooling, max temps in high 50"s *c) with your other voltages dialled in though you should be able to drop you vcore to 1.3ish i think
I dont have that option
frown.gif
PLL voltage

But thank you i will try that out

well i tried anything around 1.12 to 1.36v for 3.4 and 3.6 with different straps thou ( i have not tried lower voltages with 400 strap )
i am wondering what if i change other voltages like VTT NB etc ?
all of those voltages are on lowest possible i just increased the NB voltage from 1.10 to 1.15 thats all
 
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