i7 860 overclocking...

dannyboyee82

dannyboyee82

dannyboyee82

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Hi there, I'm quite new to overclocking.. have read the beginners guide to overclocking here and I am now starting to work on my new i7 860. One thing I don't really understand is the DRAM frequency, for my first FSB step I have left it at auto on the BIOS and it is running at 701.5MHz with an FSB of 140. My motherboard is ASUS Maximus III Formula, Memory is G-Skill Ripjaw DDR3 1600MHz and obviously an i7 860. I have a Zalman CPNS10X Extreme cooler.

I'm running Prime now, temps are at 50C with max load with the mentioned overclock above, and core speed is 3086.6MHz. What should I be setting my DRAM frequency to? In the BIOS it is only giving me a few set frequencies when I take it off auto, so rather than mess with it I tought I'd ask here first.

Your time is appreciated guys!
 
Ok, I've been testing now for a while.. I have pushed the FSB up to 153 to get a core speed of 3375.47MHz. Core temps are at 28C idle and under load they are at no more than 54C. It seems pretty stable with a quick P95 stability test, gonna see how far I can go. I have not had to increase voltage yet.
 
I'm waiting for my H50 cooler before I start overclocking!

I'm in the same position as you really, I'm a total noob on overclocking and I do not know how to overclock just yet. So I have to get down reading.

Temps seem ok with that zalman cooler though.
 
Anywhere about 1.3-1.4v to get to 4ghz 1.35 seems a good place to start according to a lot of i7860 clockers elsewhere

It should do 3.5ghz on stock voltage give or take a .10v
 
i got the same setup as you so will watch and see how you get on keep us informed have you had to do any other settings or are you just upping the fsb,have you tried the auto oveclock what it give you in bios i think its 3 oc's
 
Ok, so the FSB is up to 163 giving a core speed of 3593.3MHz, memory is at 490MHz and still have not upped the voltage.

Temps are still good at 26C idle and 59C full load.

Rick, all I have been doing is upping the FSB so far in steps of 5, then running P95 to check stability, and upping by another 5.

Anybody got any recommendations on a temp to stop at?
 
dannyboyee82 said:
Ok, so the FSB is up to 163 giving a core speed of 3593.3MHz, memory is at 490MHz and still have not upped the voltage.

Temps are still good at 26C idle and 59C full load.

Rick, all I have been doing is upping the FSB so far in steps of 5, then running P95 to check stability, and upping by another 5.

Anybody got any recommendations on a temp to stop at?
Click to expand...

no higher than 70 would be a good guide
 
HybridX said:
rick how are you finding the corsair 800d btw as im looking to buy one
Click to expand...

the case is good,air flow is brilliant but i have changed the fans on it now so its pumping through a lot better than stock,so it be a good idea too change them all.

build is perfect and nice and solid well worth the money i think.

o and before i forget there's loads of room!!
 
You overclocked it abit more dan?
Click to expand...

Yeah, I've got it up to 4ghz but it's a bit unstable so I'm fiddling with the voltage at the moment. Will post a full report when I've got it 100% stable, I'm aiming for 4ghz. I don't think I'll get it higher than that and keep it below 70C.. I'll be more than happy with 4ghz though!
 
Ok, so this is as far as I'm going to take it. I've got a stable 4ghz with an FSB of 191 and voltage of 1.32. Temperatures are running a little higher than I would like, and have been advised on but they're nothing to be overly worried about. Take a look at the picture below for temps etc.. the screenshot was taken from a small FTT's test about 45 mins in.


Overclock.jpg
 
hmm sounds interesting might have to beg for the settings you got so i got a base to work from would you be willing to share them to me lol.i know that two cpu are never the same but its something to work from if you dont mind.

cheers
 
dannyboy can i ask for your setting and what batch number your chip is (im putitng together a lynnfield batch/overclock spreadsheet)


Accross a few forums there seems to be a chip batch that hits 4ghz on around 1.3-1.35v the rest take 1.4-1.45v
 
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