*Official Retail G0 Q6600 Overclocking Thread*

[Loser777]

Woah, tray Q6600s are now $199... I'm gonna wait until a good batch shows up...

[WrigleyVillain]

Source?

[fluke420]

Source?

Microcenter. They have boxed for 199 and recently they had OEM for 179.

Just picked up an L739B 12/20/07 with a VID of 1.325. I was a little upset but was able to push it to 3600 with 1.49. The L753 I purchased earlier in the week wouldn't do it.

[Loser777]

Newegg. Tray $199.

[fluke420]

Go Cubs!

[Gen]

New L804A, VID 1.325v, Pack Date 03/19/08...

Just wanted to update a little on my L804A, it takes 1.48v loaded for 437x8= 3500mhz which it's currently been crunching @100% for 8hours now.

[vws]

Thanks for the update. If it's cooled by the TRUE 120mm at 7v, I'd say that's a great job done for a 2008 batch. How are those core temps and what's your crunching program(s)?

[Gen]

I'm using Boinc to crunch.



Still going strong after 11 hours. This is the lowest vcore for stability.


My temps are quite strange on this cpu and true. The true is lapped and I used it originally on my other Q6600 and it the cores were withing 6c of eachother at load.

Idle:
(5minutes idle time from full load)




Load:



I don't think the mount on the true is off and the lap job is good so
65c max temp with 20c ambient is good enough for me and not worth a remount atm, too much crunching downtime already

[Loser777]

@Gen: Is the P5K-E a good mobo to OC the Q6600 on? Can it handle those nb volts easily with the stock heatsinks? I'm also worried about mobos with 4-pin CPU connectors...

[gearhead364]

@Gen: Is the P5K-E a good mobo to OC the Q6600 on? Can it handle those nb volts easily with the stock heatsinks? I'm also worried about mobos with 4-pin CPU connectors...

Loser, I have the P5K-E and it seems to be a good overclocker, not as many features as my old DFI, but it has all of the bells and whistles of any good board. I have not been able to reach stable yet so I wont discuss any temps, we will see what Gen has to say.

@Gen, could you post a screen shot of HWMonitor results so we can see all of your temps. I assume you already have it, but just in case LINK. If you see a really high temp (120+ C), it is just the absence of a sensor that it trying to read.

[Gen]

@Gen: Is the P5K-E a good mobo to OC the Q6600 on? Can it handle those nb volts easily with the stock heatsinks? I'm also worried about mobos with 4-pin CPU connectors...

P5K-E is a great board and I've had almost no trouble with it, I would really recommend it to anyone wanting a solid P35 board. The only problem I would warn a potential buyer is that the mobo overvolts when using the lowest voltages on the following (on some revisions, 1.02 for sure) ex:

vNB 1.25v ========= 1.55v
vPLL 1.5v ========= 1.80v
vFSB 1.2v ========= 1.4v

check the last page or so of the P5K-E thread for more infos.

As to your second comment are you referring to the P5K-E having only 4pin cpu? because it has 8pin or are you referring to mobos in general who have only a single 4pin?


Since you asked about the P5K-E I will post some results that I just finished getting stable today. Previously my L723A Q6600 was stable as it's shown in my sig for now.

1 hour OCCT Ram Test stable but no pic since i closed it

CPU-Z reports correct reading (not tested with DMM) @1.440v Load (Boinc running in background)

[Loser777]

Hmm, I thought the P5K-E had a 4-pin connector:
http://www.newegg.com/Product/ShowIm...el+Motherboard
Well, I hope that I can get 3.7GHz with a L8XX Q6600/Q6700... :/

This seems to be my best choice for mobo, as it's the cheapest Crossfire capable reputable P35 mobo... IP35 Pro is a little expensive for my taste, Neo-2 has some insane vdrop+vdroop... and the DS3X series seems pretty iffy to me.
I was looking at the DK T2RS also but I haven't really heard much about it.

[Gen]

The other 4 pin cpu connector is covered by the black insert.

[Loser777]

Ah, that's reassuring... btw, was any additional cooling needed on the FETs or the NB etc.?

[Gen]

Ah, that's reassuring... btw, was any additional cooling needed on the FETs or the NB etc.?

BTW are you looking at the wifi version or the non? b/c I have the wifi.


The newegg pic you posted is the P5K-E non wifi version and it has no heatpipes (good or bad, up to you) and it also has a heastink on the top mosfets whereas the P5K-E wifi does not have this heatsink and has a heatpipe between the NB/PMW.

As for your question, it all depends on what your goals are: light/heavy o/c, 24/7 load or just games, dual or quad cpu, case/ambients etc, without knowing that it's hard to recommend what you may need.

I did a test awhile back on a quad @1.42v load and the top mosfets got around 45c idle with a fan blowing on them and around 55c load IIRC (was along time ago in the P5K-E thread). I personally have some ram sinks sitting on the mosfets since I run 24/7 load.

For additional cooling,

I do have a 40mm fan on the NB.

I originally didn't have a fan on the PMW but I stuck my finger in there one day and touched near the bottom of the HS and it was 'really hot' but then again it is connected by heatpipe to the NB so it has a 40mm.

With a 80mm blowing on the ram that makes 3 fans for this mobo.



Sorry for the off topics if you have more questions post them in P5K-E WiFi Thread.

[gearhead364]

The other 4 pin cpu connector is covered by the black insert.

I hope I don't sound stupid, but can I remove that black insert and use a 8 pin power connector rather than my 4 pin I have now. Also what are the advantages to running 8 pin vs. 4 pin.

[Loser777]

I hope I don't sound stupid, but can I remove that black insert and use a 8 pin power connector rather than my 4 pin I have now. Also what are the advantages to running 8 pin vs. 4 pin.

Stability, and not frying the connector with 1.6v+ on the CPU

[Hazaro]

Woah, tray Q6600s are now $199... I'm gonna wait until a good batch shows up...

Come on Intel! Get some more magical wafers out!

[Pacha]

I've seen somebody reporting his new L807A to have 1.200V VID and do something like 3.2G 1.25V, can anyone having one of these very new stepping confirm this?

[vcp-cur]

i have my q running at 3.2 (400x8) at 1.23 real v core, 1.27 in bios. I think thats a bit low compared to what some other report as stable for 3.2ghz. i dont really feel like primeing the machine for hours at a time cause the only time i can use the pc is at night, id rather play games when i can. dont wanna leave it on all day cause its a waste of electricity. the games run fine without crashing. does anybody else OC their cpu and not test it?? as long as its working, its working right?

thats so not XS ... who will OC and not bench?

i doubt you belong here

[Frega]

L721A @ 3Ghz (333*9, FSB 1333) 1.2real vCore, but is a old chip,
VID 1.27v

[Unoid]

My L804 crashed 3 hours in P95 on all four cores 400x9 1.55bios 1.52 actual Load. The memory wasn't near its rated max so I am unsure. NB 1.6v, VTT 1.6V

@gen did you use 266 strap or 333? I need to tweak more to get this stable at 3.6 Dissapointed... with my good water setup

[vcp-cur]

what would you advice for a Q6600?

the DFI DK P35 or DFI LT P35 or the DFI DK x38 ? (the LT P35 and DK x38 are priced almost the same...)

I will overclock, hopefully with a tuniq tower or a TRUE

thanks.

[Gen]

My L804 crashed 3 hours in P95 on all four cores 400x9 1.55bios 1.52 actual Load. The memory wasn't near its rated max so I am unsure. NB 1.6v, VTT 1.6V

@gen did you use 266 strap or 333? I need to tweak more to get this stable at 3.6 Dissapointed... with my good water setup

I was able to use 333 strap with PLVL 3 using the lowest NB volts (lowest keeping mind vNB bug) so that's what i'm using atm (then again I'm not running high RAM speed). I tested using 400 strap tho, with PLVL disabled just to rule out memory when finding CPU frequency with lowest voltage possible.

I tested the difference between 400 and 333 strap (keeping 845mhz on RAM) with SPI 32m and 333 strap was only about 25seconds faster.

Imo set strap to 400 1:1 with PLVL disabled and RAM timings set to 5-5-15 to rule out it's not your memory subsystem holding you back. With these loose settings you should be able to only need 1.5v or less on your NB, sometimes lower volts are better (680i comes to mind).

Do you have your NB under water?

[Unoid]

Thanks GEN, NB is under water 33C OCCT LOAD.

Even with lower multiplier and slower memory I can't get my fsb stable above 400. 333 strap doens't wanna work at 400fsb or higher either.

whats PLVL?

I'm thinking 3.6ghz is my CPU limit due to 4phase figital of my motherboard, + its a bad VID.

But my FSB/memory shouldn't be giving my trouble like it is.