Core i7/X58 Overclocking Thread

[Kanasatake]

This is using the 'SpeedStep/ Turbo Mode"...(of course).....


The batch is from the 3838A series..I know some folks have been only able to get this one to 3.8 or 3.9 max

Keep in mind this is on air..and nope , my load temps are not 70C or 80C or 60C..which for me is unacceptable.

Some reviews seem to state that "Turbo Mode" offers very little improvements..I disagree...also this function is interesting because when idle, the CPU is clocked at 2.4 Ghz... so when not in use the CPU is not pushing wattage......very cool

Cheers, JRM /Hermes

[SteveRo]

This is using the 'SpeedStep/ Turbo Mode"...(of course).....


The batch is from the 3838A series..I know some folks have been only able to get this one to 3.8 or 3.9 max

Keep in mind this is on air..and nope , my load temps are not 70C or 80C or 60C..which for me is unacceptable.

Some reviews seem to state that "Turbo Mode" offers very little improvements..I disagree...also this function is interesting because when idle, the CPU is clocked at 2.4 Ghz... so when not in use the CPU is not pushing wattage......very cool

Cheers, JRM /Hermes

Congrats!! - 4.2 is no easy feat on air even with ht off.
By the way - British Columbia is a beautiful part of the world - i particularly like Vancouver Island - Victoria is one of my favorite places.
The seaplane ride up from Seattle was spectacular.
When you have a moment - show us some screen shots under load - prime, intel burn in test or LinX - your choice - and with everest or realtemp running.

[mojooh]

Anyone to advice me how to run my memory at 1333 without changing the bclk??
is it the qpi voltage that would make a difference?

p6t dlx and 920

sorry for posting again..

[SteveRo]

Anyone to advice me how to run my memory at 1333 without changing the bclk??
is it the qpi voltage that would make a difference?

p6t dlx and 920

sorry for posting again..

good morning, qpi v up to 1.35 and/or mem v up to 1.65 to stay within the intel max. mem multi x bclock to get to mem speed.

and this is important - you need to set you uncore multi to twice your mem multi, actually twice your mem multi plus 1 click up is even better.
However - careful - max uncore speed is 4000 may be just a bit higher. Hope this helps.

[Rammsteiner]

good morning, qpi v up to 1.35 and/or mem v up to 1.65 to stay within the intel max. mem multi x bclock to get to mem speed.

and this is important - you need to set you uncore muti to twice your mem multi, actually twice your mem multi plus 1 click up is even better.
However - careful - max uncore speed is 4000 may be just a bit higher. Hope this helps.

Im so glad I didnt go with those OCZ Blade's. The specs look awesome but yeah, if you Uncore cant run it you'll have to downclock the RAM anyway (right?). Although this might allow for tighter timings but well

Instead I got a nice Mushkin kit which had a 100 Euro discount

Anyway, I dont have the parts yet, but to be sure, VTT/QPI or how you want to name it, is best to stay within 1.35V according to Intel, leaving your Vdimm to be max 1.85V (to be sagfe maybe a notch slower), right?

[mojooh]

thanks for the quick reply

What i have tried so far is 3.2ghz QPI (24x) , 2.66ghz uncore (20x) and 1333mhz memory (10x). Bclk always 133mhz.

I did try up to 1.25 qpi v but still had problems passing linx!

So is it just the qpi voltage i should try to raise to get it stable?

[SteveRo]

thanks for the quick reply

What i have tried so far is 3.2ghz QPI (24x) , 2.66ghz uncore (20x) and 1333mhz memory (10x). Bclk always 133mhz.

I did try up to 1.25 qpi v but still had problems passing linx!

So is it just the qpi voltage i should try to raise to get it stable?

At what voltage are you running your memory?
Memory v might need a little boost also.

[SteveRo]

Im so glad I didnt go with those OCZ Blade's. The specs look awesome but yeah, if you Uncore cant run it you'll have to downclock the RAM anyway (right?). Although this might allow for tighter timings but well

Instead I got a nice Mushkin kit which had a 100 Euro discount

Anyway, I dont have the parts yet, but to be sure, VTT/QPI or how you want to name it, is best to stay within 1.35V according to Intel, leaving your Vdimm to be max 1.85V (to be sagfe maybe a notch slower), right?

The jury is till out on the max mem voltage controversy.
INTEL officially told all the memory makers to keep the max v's to 1.65.
That said, there are quotes from INTEL engineers (well one anyway) that says that you can increase mem v as long as you do not exceed .5v over qpi.
So for example, if you run qpi at 1.35 you should be able to safely run mem v at 1.85v.
From what I can tell though - long term effects of any of this high voltage stuff is unknown.

[Rammsteiner]

The jury is till out on the max mem voltage controversy.
INTEL officially told all the memory makers to keep the max v's to 1.65.
That said, there are quotes from INTEL engineers (well one anyway) that says that you can increase mem v as long as you do not exceed .5v over qpi.
So for example, if you run qpi at 1.35 you should be able to safely run mem v at 1.85v.
From what I can tell though - long term effects of any of this high voltage stuff is unknown.

That counts for a lot of things, in the end those max values are questionable too. Not like Ill go and try stuff

But yeah, in the end it's defined by Intel, the same compagny who isnt really happy with people OC'ing.

For example, I guess 1.4V QPI for 24/7 might be less harmfull then an i7 at stock running 95C 24/7, although IIRC that's safe. Oh well, I got the information I needed thus far, now I only have to wait for the parts

[Kanasatake]

Congrats!! - 4.2 is no easy feat on air even with ht off.
By the way - British Columbia is a beautiful part of the world - i particularly like Vancouver Island - Victoria is one of my favorite places.
The seaplane ride up from Seattle was spectacular.
When you have a moment - show us some screen shots under load - prime, intel burn in test or LinX - your choice - and with everest or realtemp running.

Thanks , yes British Columbia is really beautiful. Even with "Flight Simulator X" you can fly around.... I made it on my "flight plan all the way to Cache Creek

Ok here is a "stress test" as you can see the temps go way up....past my comfort zone.
I hope this qualifies?

Cheers JRM/ Hermes