Q9550/4Ghz {The Final Assault} Overclocking (take 3)

[FreedomEclipse]

Nicely done Freedom!

I'm still stuck at 3.75GHz and gaggin' to get to 4GHz unfortunately everyone seems to have a P45.



Still, nice to see you've hit 4GHz!

Unfortunately not quite couldnt pass 4hrs stable on OCCT till i cranked it down to 3.9ghz

 

[MoonPig]

I've got my Q9550 at 3.8GHz stable. 1.2625v

 

[FreedomEclipse]

Are you still running your FSB termination at 1.6V ??

I would try lowering it to less than 1.4V, just to be on the safe side.
I read somewhere that any more than ~1.5V for a extended period of time can cause these Q9XX0 chips to degrade.

If I find the link again I will post it up for you to read.

Ive just read it....Im not too sure how to take it tbh,

45nm quads have been out for a while but isnt there more cases like this being reported on the next? All ive found is just andtechs report & them saying how close theyve worked with intel engineers to find out the cause of their QX9770 death... also stating the fact that it wasnt safe to run VTT above 1.4v on 45nm quads.

id this is so true why is this the only reported incident??

I kinda shit my pants when i read it & i logged off straight away & went back to 1.5v which I think is acceptable if your running a heavily overclocked CPU.

I dunno about Andtech. if their afraid to push their hardware to the limits they might aswell quit writing reviews. since im guessing that that 1.4v VTT as quoted by Intel power engineers will set the standard of how high Andtech will push their hardware when it comes to reviews.

With sites like Andtech, Id say its more a case that they really abused the hardware they review - or at least their 'OWN' hardware used to make the review - the Qx9770 was no doubt plugged into countless numbers of motherboards & volted up & down like a yo yo time & time again, with the added factor that each motherboard handles voltages differently no matter if they came off the line at the same time. im not suprised it broke.

you up the voltage to overclock your cpu. why should VTT be seen any different?
every item has a breaking point it all depends how you use it.

 

[InnocentCriminal]

Well, I've just fiddled with BIOS options and I'm now running at 3.825GHz (450MHz) this isn't usually stable but hopefully the adjustments I made this time (and with my new HX750W) I should see an improvement - stability wise.

I believe the VTT is actually called CPU PLL within the BIOS for my P5E3 - if so I think mine is set pretty high.

 

[FreedomEclipse]

Well, I've just fiddled with BIOS options and I'm now running at 3.825GHz (450MHz) this isn't usually stable but hopefully the adjustments I made this time (and with my new HX750W) I should see an improvement - stability wise.

I believe the VTT is actually called CPU PLL within the BIOS for my P5E3 - if so I think mine is set pretty high.

CPU PLL is something totally different. - I have CPU PLL & FSB Termination options in my bios.

 

[stanhemi]

cpu pll is not the same thing as vtt my cpu pll is set to 1.56 and my fsb voltage at 1.40

vtt= fsb voltage (a lot of people told me to keep it under 1.50)
cpu pll ( from what i understand 1.50 to 1.60 max)

freedomEclipse beat me on this one

 

[FreedomEclipse]

Forgot to add, for those of you who would like to read Andtechs 'VTT Killah' report, it can be found >HERE< keep reading down to the very bottom. as the staff try to answer the questions,

 

[InnocentCriminal]

CPU PLL is something totally different. - I have CPU PLL & FSB Termination options in my bios.

As do I, however I do not have a VTT option anywhere. 3.825GHz isn't stable crashes as soon as I launched a game. OK, if VTT is FSB Voltage, why on earth call it VTT when it's not called that? Or is it called that in the P5Q boards/P45?



Not to worry, I'll be moving my rig over to an Antec 300 soon, I'll do a complete rebuild then as I'll have Windows 7 Ultimate by then.

 

[stanhemi]

As do I, however I do not have a VTT option anywhere. 3.825GHz isn't stable crashes as soon as I launched a game. OK, if VTT is FSB Voltage, why on earth call it VTT when it's not called that? Or is it called that in the P5Q boards/P45?



Not to worry, I'll be moving my rig over to an Antec 300 soon, I'll do a complete rebuild then as I'll have Windows 7 Ultimate by then.

In my bios it is written fsb voltage p5q-e(p45)

 

[FreedomEclipse]

I'll have Windows 7 Ultimate by then.

Legit??

 

[InnocentCriminal]

Legit??

Yeah, I'm an IT Technician remember. Perks of the job!

 

[FreedomEclipse]

Yeah, I'm an IT Technician remember. Perks of the job!

well, if you got money to spare thats cool I'l just stick to my warez for now until something goes terribly terribly wrong....& if nothing happends past march then I dont need to buy a new copy of Win7

 

[InnocentCriminal]

I'm not buying it. Like I said, perks of the job! Doesn't the RC start shutting down ever 2 hours come March?

 

[Homeless]

May I ask what your VID is on that chip? I find 1.4v for 4ghz extremely high as I have seen many lower. I just got a 1.2875 VID chip (quite high) the other day and I only need 1.312v to get 4ghz

 

[InnocentCriminal]

Mines 1.25 if you were addressing that remark to me.

 

[FreedomEclipse]

May I ask what your VID is on that chip? I find 1.4v for 4ghz extremely high as I have seen many lower. I just got a 1.2875 VID chip (quite high) the other day and I only need 1.312v to get 4ghz

I think my VID is just under 1.4v & those CPUZ screenies are old & dont mean anything since i wasnt able to keep it stable at the speeds. whatever it is, I just think my Vendetta2 does a pretty half arsed job at keeping it cool so i could gain higher clocks on lower voltage.

Im not entirely fussed at the moment but I will be seeking a new cooler when i get the funds.

 

[dadi_oh]

I think my VID is just under 1.4v & those CPUZ screenies are old & dont mean anything since i wasnt able to keep it stable at the speeds. whatever it is, I just think my Vendetta2 does a pretty half arsed job at keeping it cool so i could gain higher clocks on lower voltage.

Im not entirely fussed at the moment but I will be seeking a new cooler when i get the funds.

The Vendetta 2's are actually quite a decent cooler and can hold their own against much more expensive coolers. However, being a direct contact heatpipe the application of TIM is a little different than for other flat finished heatsinks.

http://www.hardwarecanucks.com/foru...8580-ocz-vendetta-2-cpu-cooler-review-10.html

For thermal paste application guide for these types of heatsinks see the following link.

http://benchmarkreviews.com/index.php?option=com_content&task=view&id=170&Itemid=38

 

[FreedomEclipse]

thats easier said then done - Id like to reapply my thermal jizz but given the size of the Antec 902 (last time im buying a mid tower case) id have to completely dismantle the pc more or less & the pushpin system on the cooler really gets on my nerves, its just really awkward to fit tower coolers like the Vendetta2 on. unless its got its own fitting system like abackplate that goes underneath the motherboard or something.

I'l get around to it some time. but I just dont want to hassle myself at the moment, but i am aweare that it needs to be done. I think I had AS5 on it.

 

[Mr.Amateur]

A backplate for the Vendetta 2 you say? You can use the xigmatek bolt through kit made for the dark knight hdt coolers for the vendetta 2. It makes thermal paste reapplication or cpu switching much more hassle free, though I have yet to see changes in temperatures.

I had no idea other had a q9550/p5q pro/vendetta 2 setup like me, but I have already upgraded to the incredible q9650 and ep45-ud3p

 

[FreedomEclipse]

thanks, I didnt know something like that existed lol. OCZ have released retention brackets too for the Vendetta series so I'l see about getting one

 

[dadi_oh]

thanks, I didnt know something like that existed lol. OCZ have released retention brackets too for the Vendetta series so I'l see about getting one

I am using that OCZ bolt through kit. It works quite well although I did not really see a difference in temps... maybe a degree or two. It is more of a convenience thing. I discovered that the best way to remove and attach the heatsink is to unclip 2 of the rubber clips on one side and then rotate the fan 90deg so I can get access to the front two screws. I am able to remove and reattach the heatsink without removing the motherboard. This also works for the pushpin style. I just re-did the Vendetta 1 heatsink with push pins on another motherboard using this method and it was no problem. I use a large slotted screwdriver to push and turn the push pin clips BTW. Easier than getting my fingers down in there.

 

[FreedomEclipse]

that maybe true, but it could be slightly eaier for you because your power supply is mounted at the top so it might give you a bit more room to play with. with my 902 the Vendetta2 comes dangerously close the the top 200mm fan. so I dont have much room at all to fit a small screwdriver down there