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  Q9300 Overclocking Thread 
 
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Pwnzilla May 19, 2008, 08:32pm EDT Reply - Quote - Report Abuse
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Edited: May 19, 2008, 08:35pm EDT

Replies: 97 - Views: 57650
Just thought I'd start a Core 2 Quad Q9300 over-clocking thread since I don't see one up here yet.

I just built a new computer using an EVGA 780i, Core 2 Quad Q9300 under a Zalman 9700NT heat-sink, 4GB of DDR2 1066, and two 9800GTX's in SLI.

In the June issue of MaximumPC Gordon had a write up about comparing the Q9300 vs. the Q6600 on pages 16 and 17. Gordon was able to take the Q9300 to 3.5 GHz under the stock heat-sink on a 790i motherboard.

Here is a quote from Gordon's article:

"We expected the Q9300 to do better - and it did. On the same nForce 790i Ultra board, the Q9300 pushed to 3.5GHz on a 2,000MHz front-side bus without breaking a sweat. Mind you both overclocks were done with a stock Intel cooler, so your mileage may vary."

Now if we do the math, 2000 / 4 = 500 x 7 = 3500 (3.5GHz)
So now we know that he most likely used a 7x multiplier instead of a 7.5x.

He could have done a 466 x 7.5 = 3495, but that or any other similar variant doesn't make sense to do, nor does it give you 2000MHz FSB.

I'm not sure what voltages he was using to achieve that speed, which I think is the key to the whole story.

Now to what I have been able to reach with no issues.

Q9300

Rev. M1

Stepping 7

1600 FSB (400x4)

7.5 Multiplier

~1.25v

Unlinked memory

For a total of 3.00GHz

My chip with these settings runs completely stable under Prime95 64bit, with temps in the 45*C range.

I would like to get some good feedback on what other people have been trying and if anyone was hit 3.5GHz or higher on air.

Thanks for any input.


Q9300 @ 3.0
Zalman 9700NT
4GB OCZ DDR2-800 @ 1066
eVGA 9800GTX's in SLI
eVGA 780i A1
SB X-Fi Xtreme Gamer
PCP&C Silencer 610W
WD Raptor X 150
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Adam Kolak May 19, 2008, 08:49pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
As long as you keep your DDR2-1066 ram under 533Mhz you should be able to keep pushing much higher. I would imagine that board would have no problem hitting 450Mhz to 500Mhz (or 1800 to 2000 Mhz "quad-pumped") if it is as good as the P35/X38 based boards at overclocking. You'll obviously not be running a 1:1 ratio though since your ram can most likely run a little faster then your FSB on your motherboard. You'll want to have your ram run at the DDR-1066Mhz (533Mhz x2) too because if you run it any slower then you wasted your money buying overclocking spec ram (instead of the regular DDR2-800 stuff). Of course if you keep the 400Mhz FSB and you run your ram at DDR2-800 (400Mhz x2) speeds then you would be running a 1:1 divider. I would think any limitations keeping your motherboard from going past 400Mhz FSB would be things such as voltages. Tick your CPU voltage up by a small increment at a time, and maybe even bring the NB voltage up a bit too. My system was not stable at the current settings (400Mhz FSB, DDR2-1000 {500Mhz x2} RAM, 3.2Ghz CPU) until I bumped up the voltages just a very very small amount. It went from blue screening to 24/7 stable with a tiny voltage increase (1.25v stock to 1.264v).

Adam Kolak
Moderator, Hardware Analysis
adam@hardwareanalysis.com
DFI LP P35-T2RS | Xeon Quad @ 3.2Ghz | 4GB DDR2-1000 | 8800GT 512MB | See Profile
Pwnzilla May 19, 2008, 09:00pm EDT Reply - Quote - Report Abuse
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Edited: May 19, 2008, 09:02pm EDT

 
>> Re: Q9300 Overclocking Thread
Ok, I'll try moving my voltages up a bit, the max VID from Intel for the Q9300 is 1.3688v I believe.

I set the memory unlinked so it runs at 1066 while the CPU runs at whatever I choose for a FSB.

Q9300 @ 3.0
Zalman 9700NT
4GB OCZ DDR2-800 @ 1066
eVGA 9800GTX's in SLI
eVGA 780i A1
SB X-Fi Xtreme Gamer
PCP&C Silencer 610W
WD Raptor X 150
Meats_Of_Evil May 19, 2008, 09:03pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
Hey I'm glad I'm not the only one here who reads Maximum Pc. :) Yeah I read that article a while ago, that's why I was suggesting you to buy the Q9300 instead of the Dual core you were about to give into. Alas Good Choice!

Interetsing how the extra megabytes of cache doesn't matter in the Q6600 since it was proven that the Q9300 was up to 15% faster in every app they ran.

-------------------------------------------------------------------------------------------------------------------------
Everything I write is Sarcasm.
Adam Kolak May 19, 2008, 09:04pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
Yeah you won't need anywhere near there unless you want to hit 4Ghz on liquid or phase change cooling. To hit 3.5Ghz, you shouldn't need anymore then around 1.27v to 1.29v, based on the fact that my 65nm Quad is hitting 3.2Ghz with 1.264v.

And yes, a 100Mhz clock speed increase (2.5Ghz vs. 2.4Ghz) is gonna be much more of a performance gain then an extra 2MB of L2 cache. And it comes down to only a 1MB increase for each set of two cores. On current Intel Quad cores, two cores share half the L2 cache, and the other two cores share the other half of the L2 cache. It's basically two dual cores inside of one chip. This is why some people say "it's not a REAL quad core".

Adam Kolak
Moderator, Hardware Analysis
adam@hardwareanalysis.com
DFI LP P35-T2RS | Xeon Quad @ 3.2Ghz | 4GB DDR2-1000 | 8800GT 512MB | See Profile
Pwnzilla May 19, 2008, 09:36pm EDT Reply - Quote - Report Abuse
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Edited: May 19, 2008, 09:36pm EDT

 
>> Re: Q9300 Overclocking Thread
Well...I just set it to:

470 x 7.5 = 3525

1.25v

My computer freaked out, I don't know if its a coincidence or maybe I have a virus but, once it booted into windows I got the your system is going to shutdown in 60sec, 59, 58 etc. then it just shutoff. Restarted it, came up with a "corrupt" windows file, I didn't believe that, reset BIOS to defaults, restarted, everything is running Ok.

Running AVG virus scan now, I don't think this is because of the OC.

Q9300 @ 3.0
Zalman 9700NT
4GB OCZ DDR2-800 @ 1066
eVGA 9800GTX's in SLI
eVGA 780i A1
SB X-Fi Xtreme Gamer
PCP&C Silencer 610W
WD Raptor X 150
Seth Hoffman May 19, 2008, 10:47pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
My most stable OC so far is still:

Stock: 1333 x 7.5 = 2.500 @ 1.163 (auto)

OC: 1600 x 7.5 = 3000 @ 1.35v (auto)

Temps under stock clocks are, 43*C full load surface, and 50*C core, 45 to TJ Max.

Temps under 3.00GHz are, 49*C full load surface, and 59*C core, 37 to TJ Max.

I think the Zalman 9700NT might be a bit under spec for this kind of overclocking and core, I may need to drop down for a Tuniq 120 or alike.

I'm using SpeedFan, Real Temp 2.5 for temps, and Prime95 64bit for load testing.

Asus Maximus Impact VI | 4670K @ 4.2Ghz | Corsair H60 | 16GB Corsair Vengeance Pro 1866 | EVGA GTX 780 Classified | Samsung 840 256GB | Samsung 840 Evo 500GB | Corsair AX 760W | BitFenix Prodigy
Xen Wildman May 20, 2008, 02:01pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
Ok Now set your CPU Voltage to manual and drop it a few steps from 1.35 til it tests unstable and raise it a step from the unstable setting. My Q6600 (65nm) runs 3.1ghz at what yours (45nm) is stock. I found that the automatic setting tends to over-estimate the CPU Voltage.


Seth Hoffman said:
My most stable OC so far is still:

Stock: 1333 x 7.5 = 2.500 @ 1.163 (auto)

OC: 1600 x 7.5 = 3000 @ 1.35v (auto)

Temps under stock clocks are, 43*C full load surface, and 50*C core, 45 to TJ Max.

Temps under 3.00GHz are, 49*C full load surface, and 59*C core, 37 to TJ Max.

I think the Zalman 9700NT might be a bit under spec for this kind of overclocking and core, I may need to drop down for a Tuniq 120 or alike.

I'm using SpeedFan, Real Temp 2.5 for temps, and Prime95 64bit for load testing.


Meats_Of_Evil May 20, 2008, 02:15pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
I have my Q6600 (G0 stepping) at 3.2 ghz using only 1.28 core voltage. That was after I did the V-drop mod on the Evga 680i, from which I saw temperature changes after that. Before the V-drop mod I had to set it at 1.35 core volt for the cpu to remain stable. So yeah try lowering the voltage until it becomes stable then make it stable, yo should see your CPU temp is a lot cooler.

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Everything I write is Sarcasm.
Adam Kolak May 20, 2008, 02:35pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
Pwnzilla said:
Well...I just set it to:
70 x 7.5 = 3525

1.25v

Your probably are not going to be able to achieve that type of overclock without a voltage raise. You really need to up the voltage a bit to make that stable. Even going up to 1.27v or 1.28v would probably make that stable.

Meats of Evil, my Xeon X3210 (also a Kentsfield G0 stepping) is running at 3.2Ghz as well with just 1.264v.

Adam Kolak
Moderator, Hardware Analysis
adam@hardwareanalysis.com
DFI LP P35-T2RS | Xeon Quad @ 3.2Ghz | 4GB DDR2-1000 | 8800GT 512MB | See Profile
Xen Wildman May 21, 2008, 09:09am EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
Yeah there seems to be a big jump in voltage req. from 3.1 to 3.2 for my G0 q6600 which is why i keep it at 3.1 so i can keep my cpu fan to min (Tuniq Tower 120). I do recommend the Vdrop/Vdroop mod since it is easy and will lower your overall temps/voltage setting. Bottom line is I think 1.35 is a little high a voltage for a 45nm part at 3ghz. You can expect a steep incline in voltage requirement as you go up past 3.2ghz and hence more heat.

Pwnzilla May 21, 2008, 01:24pm EDT Reply - Quote - Report Abuse
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Edited: May 21, 2008, 01:32pm EDT

 
>> Re: Q9300 Overclocking Thread
Best results yet:

CPU Q9300

7.5 x 1600 = 3000

1.20v


RAM DDR2-800

1066

2.0v

5-5-5-15


I ran Prime95 for about an hour with no problems, I also ran Everest stress test for about an hour, then I ran three 3DMark runs in a row, and everything checked out fine. I'm going to run the burn in tests longer overnight.

I went into the BIOS and hard set the voltages, the auto settings were too harsh I found


All-in-all I'm pretty happy with this new systems OCing ability, I was surprised the DDR2 800 OCZ SLI RAM went to 1066 so easily.

Q9300 @ 3.0
Zalman 9700NT
4GB OCZ DDR2-800 @ 1066
eVGA 9800GTX's in SLI
eVGA 780i A1
SB X-Fi Xtreme Gamer
PCP&C Silencer 610W
WD Raptor X 150
Adam Kolak May 21, 2008, 02:31pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
Pwnzilla said:
Best results yet:
I went into the BIOS and hard set the voltages, the auto settings were too harsh I found

Never use any type of auto-voltage settings, especially when overclocking. I try to disable any of that auto-crap before I overclock.

Also look up on your ram manufacturer's site and see what the voltage rating they recommend is for your ram. My motherboard set my ram voltage at like 1.95v (or similar) and yet G.Skill recommended 2.1v, so I upped it to 2.1v and the ram was able to run at higher settings. But if you got DDR2-800 ram up to 1066 speeds then thats pretty damn good.

Try to get your FSB up now. Your probably gonna need a tad more voltage to the CPU (and possibly a tad more to the NB) to go past 3.0Ghz.

Adam Kolak
Moderator, Hardware Analysis
adam@hardwareanalysis.com
DFI LP P35-T2RS | Xeon Quad @ 3.2Ghz | 4GB DDR2-1000 | 8800GT 512MB | See Profile
Pwnzilla May 21, 2008, 05:32pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
Yeah I went and looked at my RAM on OCZ's website, it says its stock voltage can go to 2.1v, but they have this over voltage protection thing, if you go up to 2.3+ and it nukes your modules they'll replace them under warranty.

I set them to 2.0v and they're fine at 1066.

I set my CPU to 1.25v first and tried it, it was fine, I notched it back to 1.20v, it was fine, so I'm going to stay at 1.20v because if I get into the 1.3x's My temps jump way up. I'm very happy with a 500MHz overclock on this first stepping of the Q9300. I don't want to push my luck.

Thanks for all the help.

Q9300 @ 3.0
Zalman 9700NT
4GB OCZ DDR2-800 @ 1066
eVGA 9800GTX's in SLI
eVGA 780i A1
SB X-Fi Xtreme Gamer
PCP&C Silencer 610W
WD Raptor X 150
Pwnzilla May 21, 2008, 09:47pm EDT Reply - Quote - Report Abuse
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Edited: May 21, 2008, 09:48pm EDT

 
>> Re: Q9300 Overclocking Thread
I went back and hard set all my voltages, here's what I've found to be most stable, overclocked.

SPP = 1.4v

nForce = 1.5v

FSB = 1.3v (reports as 1.4v in system monitor for some reason, but in BIOS it's 1.3v)

HT = 1.2v

Aux = 1.5v

DDR = 2.0v

CPU = 1.2v

Q9300 @ 3.0
Zalman 9700NT
4GB OCZ DDR2-800 @ 1066
eVGA 9800GTX's in SLI
eVGA 780i A1
SB X-Fi Xtreme Gamer
PCP&C Silencer 610W
WD Raptor X 150
lee fleming May 27, 2008, 06:04am EDT Reply - Quote - Report Abuse
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Edited: May 27, 2008, 08:22am EDT

 
>> Re: Q9300 Overclocking Thread
Hello everyone.

I've had this cpu attached to a asus Striker II Formula for about 2 months now. I've now gotten used to its speed, so I've started to oc it. At the moment these are the settings. They are still being stress tested with prim95 v25.6 and been stable for 45mins. ( It's taken me 2 days and nights, just to get to this point :~ )

cpu fsb 475 * 4 = 1900
cpu clock 475 * 7.5 = 3562 MHz

memory speed ddr2-950
dram ratio 1:1
dim volt 2.2v in bios (everest reports 2.27v)
dim vtt 1.14v

cpu core 1.300v in bios (Everest reports 1.23v!!)
cpu vtt 1.46v
cpu pll 1.63v
cpu gtl_ref 130mV

cpu temp 56-58c
cpu core temps 70-73c

I'm trying to get to 500 MHz for a 50% increase but dont this this will happen. I think the volts and temps are getting to high now.

The memory can run stable at 1100mhz and thats using very cheap 4gb of kingston KTC1G-UDIMM set to 5-4-4-15. It's set to sync mode at the moment as not to over stress it while I'm playing around with the cpu.

What do you guys think? do you reckon I can get to 3.75GHz range. that would be 2000MHz fsb :_)

Xen Wildman May 27, 2008, 04:07pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
Lee have you done the Vdrop/Vdroop mod to you mobo yet? that should help you drop your core voltage down and lower temps a little.

lee fleming May 27, 2008, 06:24pm EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
Xen, No I haven't. I have only heard about it in the last week. Not to sure if I want to mod my still guaranteed board yet.

I've seen a few pages on the web about it. Can you also point me to some other sites as well

Thanks in advance
Lee

Xen Wildman May 28, 2008, 11:09am EDT Reply - Quote - Report Abuse
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>> Re: Q9300 Overclocking Thread
There are a few threads specific to your motherboard on Xtremesystems.org forums. Just do a search for it. My mobo is still under warranty. The mod itself just takes a few light strokes from a #2 pencil which worked on my 2nd try (the first time seemed to have little effect). If you decide you dont want it anymore or you send the mobo back, just use the eraser side on it heheh. I think of it as an improvement on the orig. design rather than a hack.

Pwnzilla May 30, 2008, 12:12pm EDT Reply - Quote - Report Abuse
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Edited: May 30, 2008, 12:19pm EDT

 
>> Re: Q9300 Overclocking Thread
I think that 3.75 might be outside what the Q9300 can do without extreme measures taken.

I've been able to take my Q9300 to 3.375GHz but the temps and needed voltages were getting too high for my comfort level. I had to use a 1.35v core setting and thats on the very edge of what these chips can take without getting into the "danger zone".

All-in-all I'm very pleased I can do a 500MHz OC on a $250 CPU without any serious complications. I've been looking at the Thermalright Fire Extinguisher heatsink which would probably grant me that extra 125MHz to get to an even 3.5GHz OC.

Also I would trust the BIOS metrics versus software readings on voltages and temps. This has been the way I've always overclocked and never had a serious problem.

As a side note I bought this OCZ SLI Ready DDR2-800 memory for $56 after rebates and it is fricken amazing, I've got it overclocked to 1066MHz with 5-5-5-15 2T timings at 2.0v, that's .1v lower than stock! I can probably get them stable at 4-5-4-15 2T but I haven't messed with it yet.

Keep the thread going guys, I'm sure we can get these chips really cooking with some time.

Q9300 @ 3.0
Zalman 9700NT
4GB OCZ DDR2-800 @ 1066
eVGA 9800GTX's in SLI
eVGA 780i A1
SB X-Fi Xtreme Gamer
PCP&C Silencer 610W
WD Raptor X 150
emre onal Jun 03, 2008, 06:46am EDT Reply - Quote - Report Abuse
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Edited: Jun 03, 2008, 06:49am EDT

 
>> Re: Q9300 Overclocking Thread
Hi I had also overclocked to q9300 up to 3.0 GHZ with stock fan.Rams are 4*1gb 800 mhz kingston,mainboard is Gigabyte p35ds3l.I think so cpu ram fsb ratio must be 1:1 for best performance?isnt it? So 400*7,5=3.0 ghz 400*2=800mhz timings are 5-5-5-18(is it normal?).But teprature is about 50-60 degree.


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