LOL. dam where did I get a q6600 from.  My bad.
 
edited above. 
Gotta keep your eye on me Diff.  I get some crazy posts going @ 3am.

Make sure you are updated to P33 BIOS before installing that E8600. That CPU needs that BIOS to run correctly.
 
3.6 is pretty decent overclock if you are doing that on the E6750.
The E8600 the 4GHz will probably be attainable but I highly doubt it with that E6750. I would not even try pushing the FSB that high and stressing it out before you get your E8600. Just wait for that to try your 4GHz as you'll be able to do it with a lower FSB.
 
Sure stop in when you are starting your new build, start a new thread in the appropriate forum and I'm sure there will be plenty of people to help and give advise.
Not to scare you but your new build will probably be with a Intel chipset and that is really different as far as overclocking compared to the Nvidia. Whole bunch of new terms and settings to mess with. I have a x58 board and honestly still have not figured out how to overclock it as there are so many settings so i just gave up and went with the appropriate "dummy" overclock. LOL
Certain settings need to be within so much of other settings, etc.
Sure you'll be alright overclocking a new system, I just do not have the patience for changing so many settings every time I go up a few more MHz on the FSB. Heck the new P56 boards might even be a lot easier to overclock then the x58, don't know.

Watch out with raising your memory voltage, check your model numbers and go by the specs the manufacturer lists. Having said that though it is highly recommended to not go over 2.1v on the memory no matter what the manufacturer says. The 600 series boards do not have the best memory controllers and usually do not last long at memory voltages above 2.1v.
 
Are you running the memory linked or linked and synched? If so it may just be getting too high on the MHz for it depending on what FSB you are running.
 
As far as your CPU voltage if you are on auto that usually overvolts if anything but you can download CPU-z and see the general voltage the CPU is set at. The reading will be a little lower then actual voltage as Windows having everything loaded up draws it down some.
Think the general rule is anything above 1.5v is starting to get very dangerous for the CPU.
Think maybe in BIOS you might be able to see the actual voltage even if it is on auto but not sure as I do not have my 680i system fired up right now.
 
Voltages have their own sub-section in BIOS under advanced chipset.
 
Also forgot to mention that when you are flashing the BIOS do that on default settings not when you are overclocked.
 
This might help as well, it is a basic overclocking guide
http://forums.evga.comarchive/tm.asp?m=61146
 
If you want specific overclocking help best to make a new thread as this one is getting somewhat off track.

RCondrey

I have a Q8200 quad core in my 680i and it runs fine and cool with no problems. Ronnie

 
The Q8200 is not officially supported and it has been hit or miss as to it working for people. You're one of the lucky ones, twice as many unlucky ones.
I'd skip the risk on that old tech anyways and upgrade the MB, CPU and memory for around $250 more over the price of a CPU that might not work correctly in the 680i. I feel it's far better bang for the buck by upgrading just those three things.

Hi, yea I remember you, how ya been, glad to see you back. Wondered a couple times where you went off to.
How's the system, still running fine?
Things here are going, same old same old, that is about it.
 
The dual core E8400 overclocks well on a 680i and is somewhat decently priced now at about $170.
Sure I'd be glad to help along with the others here if/when the time comes. Make a new tread when your ready.
Do you do a lot of photo or video work? Wait, Now think I remember it is music you work with, isn't it? Dual core should be fine with that.
 
One thing to remember with the E8400, you'll need at least P32 BIOS, and furthermore that P32 or P33 BIOS limits you to the first PCIe x16 slot for a single graphics card so that is something to consider if you now possibly have your 8800 in say the lower or number three slot.
Use the Pause key on boot if the screen goes by too fast and you need to see what BIOS version you have. Enter key to continue on with boot when you see what you need to see.
For example the release number of the BIOS in the pic attached is P26.

 

Q6700 was discontinued a long time ago, mighty hard to find now beyond OEM chips they are way overcharging for.
It was a good but somewhat overpriced processor in it's time but for the price of one of those you could pretty much upgrade to a P67 Sandy Bridge system.
If a 775 socket CPU is more then $200 it would be way better to upgrade to newer tech IMO as the price/performance line makes it pretty much a given. Heck even below that $200 price one should think a good bit about the benefits of their potential 775 socket CPU upgrade over their current CPU. Mid level Sandy Bridge 1155 socket upgrade (MB, memory, and CPU) can be had for about $400 so those are things to keep in mind for someone looking to upgrade their system.

Diff_1

Q6700 was discontinued a long time ago, mighty hard to find now beyond OEM chips they are way overcharging for.
It was a good but somewhat overpriced processor in it's time but for the price of one of those you could pretty much upgrade to a P67 Sandy Bridge system.
If a 775 socket CPU is more then $200 it would be way better to upgrade to newer tech IMO as the price/performance line makes it pretty much a given. Heck even below that $200 price one should think a good bit about the benefits of their potential 775 socket CPU upgrade over their current CPU. Mid level Sandy Bridge 1155 socket upgrade (MB, memory, and CPU) can be had for about $400 so those are things to keep in mind for someone looking to upgrade their system.

I have a qx6700 I just pulled out of my computer about 2 months ago and put in a qx9650, I will sale it if you are interested

xpmule

i've been using a wolfdale E7500 for over a year now
and i debated on wether to spend the extra money on a quad at the time but 2 factors i considered were how usefull is having the 3rd and 4th cores. And the 2nd thing was overclockability..
i was well aware of limitations and reports of peoples results oc'ing on this board..

make sure you got bios vP33 like the other guys said too
it was needed so i could post

i've gotten stability @ 3.85 ghz on air with this and i usualy have a "Golden Grahams" cereal box used as a fresh cool air intake LOL
it drops my cpu temp by a min of 8 degrees celsius :)

i posted because my 2 fav games are CSS and GTA 4
so i know exactly where your coming from..

tighten up them memory timings and maybe oc that gfx card too ;)
been using evga precision on my Zotac Geforce 9500 GT
until i can afford a decent gfx card (don't laugh i know it sucks bad)

so ya my vote is screw the quads and get a wolfdale..

Screw the quads? Have you seen the cpu usage on some of these games? I came from a x6800 to a qx6700 to a qx9650 and that x6800 had nothing on these quads. I think u may be steering in the wrong direction. Not to mention the usefulness of a quad outside of gaming. Sorry I don't believe you will take a dual core and outshine a quad

Diff_1

Hi, yea I remember you, how ya been, glad to see you back. Wondered a couple times where you went off to.
How's the system, still running fine?
Things here are going, same old same old, that is about it.

The dual core E8400 overclocks well on a 680i and is somewhat decently priced now at about $170.
Sure I'd be glad to help along with the others here if/when the time comes. Make a new tread when your ready.
Do you do a lot of photo or video work? Wait, Now think I remember it is music you work with, isn't it? Dual core should be fine with that.

One thing to remember with the E8400, you'll need at least P32 BIOS, and furthermore that P32 or P33 BIOS limits you to the first PCIe x16 slot for a single graphics card so that is something to consider if you now possibly have your 8800 in say the lower or number three slot.
Use the Pause key on boot if the screen goes by too fast and you need to see what BIOS version you have. Enter key to continue on with boot when you see what you need to see.
For example the release number of the BIOS in the pic attached is P26.

 
Hey, Diff; everything is running perfectly fine.  I'm thinking that I should wait a while and upgrade my motherboard, CPU and RAM when my finances permit because your first assumption was correct in that I do a lot of video encoding.  With that being the case, I gather I am better to stick with my current four core Q6600.  Is that correct?  Also, I upgraded my video card some time ago to an EVGA GTX 460 (I'll have to update my sig).
 
 

in regards to the quad vs dual issue.. i think the the quad is obviously better.. BUT history has proven that the 680i is not a that great at oc'ing quads.. just check around this forum and you would see what i mean.. i remember people saying that they were jealous about how
large of an oc they were getting compared to the dual core Conroe results people were posting.. not gonna oc much definatly get the quad..
 
like i said i can get almost 4ghz on air with my board and after a yr or two now my vdroop mod'd board is stabile and running fine
i do take care of my computer though, ocasionaly i strip it apart
and clean every part inside & out and monitor for damage such as blown or leaking cap's..
take care of your pc people.. a clean pc is a happy pc :)
 
And ya go for the quad but it WILL cost slightly more money and you *may not be able to get a higher oc on it compared to a dual core..
i rememeber people posting something in this forum about benchmarks with a comparison between e6600 oc'd vs the q6600 oc'd and if i remember correctly the C2D had better scores, sry i don't have the link to the info though..

Well thx for all the help with my  680sli  and the e8600 rig. I was able to oc at 4.5 and stable with all the help would not boot at 4.61. I was given a 780 ftw sli rev2 I installed the e8600 on it and now have  it oc'ed at 4.25 with just the fsb ran up and appears to be stable NOW! it bsod at  4.35 dropped back to 4.25 no problems bsoding now.  Changed nothing with this mobo but the bios flash to newest sv15 to sv17 all componets are the same am asking for some tips as to why this board bsod 'ed  so far under the 680 sli and how i might get more out of this 780 ftw  mobo than i did with the 680 with same set up.

I have encountered a problem with this 780 ftw sli mobo and this ram cpuid cpz  shows it as pc6400 but it is pc8500? But running great @ 4.25 no issues. am trying several fixes to get the ram to show up as pc8500 no luck yet .