Q6600 - no joy overclocking

[niko084]

my e6750 in storage takes 1.375v for 3.2Ghz. wish it ran 1.2 like yours.

Well my mainboard won't actually let me select anything below 1.35 but with thermal control turned on it runs at 1.2-1.21 and its perfectly stable. Thats a pretty crazy spread though, wonder if it didn't like your mainboard...

 

[Dia01]

e6750 is a goofy chip...
Mine goes to 3200 @ 1.2 volts no problem...

To go above I have to kick it to around 1.5 volts and then it will go to
at *least* 3600, have not pushed for more but it was stable there just
didn't want the temps for so little.

Multi hurts.... But ohh well 3200 is screaming to be honest.


******************
As for your ram, what frequency are you ending up running it at?
Try like 5-5-5-15 or 6-6-6-18 at 1:1 timings and then go for 300-325-350-375-400 FSB run ram voltage @ 2.1-2.2...
2.3 is getting a little much for most DDR2.
Get your processor voltage up to around 1.475-1.5 maybe a bit more.. Quads love power.
May need to boost your northbridge voltage a bit.

I've got the cpu @ 1.475V, CPU FSB @ 1.5V, RAM @ 2.3V, SPP @ 1.5V, MCP @ 1.5V and MCP-SPP @1.2V. SLI Memory disabled, Linked at 5:4, FSB QDR @ 1334 X 9(3.0GB) and RAM @ 1067. Timings at present 5-5-5-15-2T / 5-22-5-10-7.8uS (Advanced). The advanced timimgs seem to make alot of difference but I truly don't know much about them.
Starting the process of elimination. Best run I've had with the timimngs were at
5-5-5-12-2T 20 minutes with Prime95. Didn't write down the advanced timings though so I'll have to start again. :shadedshu

And yes it's starting to really shit me off. It'll be worth it if I figure it out though.

 

[Tatty_Two]

I actually did try to lower my RAM speeds without any success. I also raised my CPU core voltage to 1.45V, CPU FSB to 1.5V and SPP and 1.5V. The memory should't overclock when unlinked and I missing something?

No your not and your right, but running unlinked on some boards can produce stability issues in itself. Have a look at coretemps and let me know the Vid for your chip, you may find that you have a poor chip and it needs more than 1.45V to go further.....very unusual I know but it wouldnt hurt to up the Vcore to 1.475V and see if that makes a difference.

Edit: Have just seen you have tried the higher VCore so ignore that!

What phase power does that board have?

 

[Mussels]

Well my mainboard won't actually let me select anything below 1.35 but with thermal control turned on it runs at 1.2-1.21 and its perfectly stable. Thats a pretty crazy spread though, wonder if it didn't like your mainboard...

its on an asus P5B-E which didnt support 1333 FSB chips at launch, so its possible its just not that great with supporting it.


on topic for the OP, i'm afraid my vote is saying that mobo cant OC quads. 680i was known to need a new revision to OC quads and i reckon you've somehow got the early version that cant OC them.

 

[niko084]

Aww I see... That could be it...

 

[Dia01]

No your not and your right, but running unlinked on some boards can produce stability issues in itself. Have a look at coretemps and let me know the Vid for your chip, you may find that you have a poor chip and it needs more than 1.45V to go further.....very unusual I know but it wouldnt hurt to up the Vcore to 1.475V and see if that makes a difference.

Edit: Have just seen you have tried the higher VCore so ignore that!

What phase power does that board have?

Coretemps with CPU @ 1.475V and FSB 1334 X 9 (3.0GB). RAM @ 1067MHZ.
Monitored via Core Temps as I type, 2nd time I've typed this because the prick rebooted on me again.
Core 1: 36
Core 2: 32
Core 3: 32
Core 4: 32

Oh, I don't know what phase power the board has. BFG seemed to only produce the boards without revisions also so Mussels may be right.

Core Voltage as per CPU-Z - 1.440V

Just re-adjusted timings - 5-5-5-15-2T / 6-28-6-15-7.8uS. Getting better results (not by far any good) with adjusting the advanced timings. If I do have success and I hope Mussels isn't correct, I should be able to see if I can lower the voltages.

 

[Dia01]

No your not and your right, but running unlinked on some boards can produce stability issues in itself. Have a look at coretemps and let me know the Vid for your chip, you may find that you have a poor chip and it needs more than 1.45V to go further.....very unusual I know but it wouldnt hurt to up the Vcore to 1.475V and see if that makes a difference.

Edit: Have just seen you have tried the higher VCore so ignore that!

What phase power does that board have?

Sorry VID on Core Temps is indicating 1.325V

 

[grunt_408]

Thanks guys I just dropped my volts from 1.375 down to 1.200 and it runs alot cooler..
40/45 load temps running orthos reading temp with core temp 0.96
@ Dia01 are you using CPU-z to get the volts?

 

[trt740]

only the older 680i's have that problem. the newer ones such as my 2 evga A1 boards have no problem with quads. my q6600 runs great.... pics are proof...

Your right but very few motherboard companies revised there motherboard to allow the Fsb over 333 with quads, EVGA was one of the few. Thats most likely his problem the 680i board other than EVGA have trouble overclocking quads past 333fsb or 3.0ghz.

 

[pepsi71ocean]

Your right but very few motherboard companies revised there motherboard to allow the Fsb over 333 with quads, EVGA was one of the few. Thats most likely his problem the 680i board other than EVGA have trouble overclocking quads past 333fsb or 3.0ghz.

Its believeable, mine is stable where it is now, and its stable at 300x9. (downclocked it till new parts arrive).

 

[Dia01]

Thanks guys I just dropped my volts from 1.375 down to 1.200 and it runs alot cooler..
40/45 load temps running orthos reading temp with core temp 0.96
@ Dia01 are you using CPU-z to get the volts?

Core Voltage as per CPU-Z - 1.440V
VID on Core Temps is indicating - 1.325V

A slight discrepency I would say. So much for the BFG Bios revision P31.

BFGRNFI680iS BIOS Update
Version: P31
Posting Date: 10/04/2007
File Size: 444KB
Resolves issues with G0 stepping CPU’s and improves 1333MHz FSB Core 2 Quad and Duo stability and overclocking.

 

[pepsi71ocean]

that descrepancey, if i am right is your vdroop. Is there a forum at BFG where you can read about other people and there oc'ing ability?

 

[Dia01]

Well, it looks like I am out of luck. I have tried about 38 solid combinations of memory timings at 1333FSB, tried from 1600FSB to 1280FSB and the only solid maximum frequency increase is 1266FSB. That only gives me only 2.850GHZ at X 9! I might try the pencil mod as I think I'm getting too much Vdroop because I'm not seeing what the bios is indicating. That or by a P35 or X38 chip? Have requested tech support from BFG, so I'll see what they reckon. Thanks for all of your help anyway.

 

[Mussels]

P35 has some great boards at good prices. I cant reccomend the one i'm on enough, as its stable, shitload of options, and great onboard features (i mean sh!t, the onboard wireless on this is very powerful, AND one of the top reccomended chipsets for hacking wireless networks... in case you forget your WEP key )

 

[Tatty_Two]

that descrepancey, if i am right is your vdroop. Is there a forum at BFG where you can read about other people and there oc'ing ability?

If his VDroop accounts for all that discrepency then he should be RMA'ing his board

 

[Dia01]

P35 has some great boards at good prices. I cant reccomend the one i'm on enough, as its stable, shitload of options, and great onboard features (i mean sh!t, the onboard wireless on this is very powerful, AND one of the top reccomended chipsets for hacking wireless networks... in case you forget your WEP key )

Well funnily I only just bought a GA-P35-DS3R (rev2) board for my new HTPC I'm building. Only wish I bought a dual PCIe board, may be tempted to whack it in though.

 

[Dia01]

I'm not seeing any other options for you to try in the information we have.
Thank you,
Tim S
BFG Support

Looks like that's the end of the road, P35 it is.

 

[ZenZimZaliben]

Im very happy with my P35. So I don't think its a bad thing for you to go that route.

 

[Fitseries3]

I'm not seeing any other options for you to try in the information we have.
Thank you,
Tim S
BFG Support

Looks like that's the end of the road, P35 it is.

send me the board and cpu. i'll get it running. seriously... you pay to ship them to me and i'll pay to ship it back. i hate seeing situations like this not being resolved.

 

[Dia01]

send me the board and cpu. i'll get it running. seriously... you pay to ship them to me and i'll pay to ship it back. i hate seeing situations like this not being resolved.

Thanks for the offer but it'll cost too much to freight from Australia, I assume you're oversea's? I am gonna try the pencil mod to see if that improves the Vdroop as I am still not entirely beaten. I am pretty certain that there is too much voltage drop because the bios is not corresponding to various applications (namels coretemp) and the memory should be holding at the recommended timings and frequency. It's a shame though because I like this board.