Intel Core2Duo Conroe Overclocking thread: post your results and questions

Great. People seem to prefer Asus P5K Deluxe though they also say Gigabyte DQ6 has better cooling. I would have chosen Asus P5K series board as well if I were to buy one from retail. I'm sure you are waiting for a moderately-priced Penryn, too.

Congratulations!

Been playing with an new Mobo for about a week now and I believe I have found a stable OC while keeping my CPU temps under 60 deg which isn't easy because Quads run quite a bit hotter than the C2D's.

Motherboard: Asus P5K Deluxe/WiFi. P35 Chipset.
BIOS: 0311
CPU: Intel Core 2 Quad Q6600. (Lapped)
RAM: Mushkin XP2-8500 Xtreme Performance DDR2 2Gb @ 392. 1:1 @ 4-4-3-10.
Overclock: 3.528GHz.
FSB: 392MHz.
CPU Temp Idle: 32C.
CPU Temp Load: Max 58C.
Cooling: Themalright Ultra 120 eXtreme (lapped) with Scythe S-Flex 120mm fan. (Push)

Misc Settings:
Vcore: 1.450v.
PCIE Freq: 100.
Dram Voltage: 2.25 volts.
Dram Static Read Control: Disabled.
Transaction Booster: Disabled.
Clock Overcharging Mode: Auto.
CPU Spread Spectrum: Disabled.
PCIE Spread Spectrum: Disabled.
CPU Reference Voltage: Auto.
CPU Voltage Damper: Enabled. (Reduces Vdroop)
CPU PLL Voltage: 1.50v.
FSB Termination Voltage: 1.40v.
North Bridge Voltage: 1.40v.
North Bridge Reference Voltage: Auto.
South Bridge Voltage: 1.05v.
Legacy USB Support: Disabled.

Stability test was running Folding at Home for 12 hours (all 4 cores at constant 100% usage) and using the Core temp log to monitor temps which never exceeded 58 degC during the 12 hour stability test.

Some of the above settings are new and I have no clue what they do.

PC Probe 12v shows 11.98v but DMM shows 12.12v under load.

---

Last edited by crossg; 16-06-2007 at 04:50. Reason: typo

crossg in your post above. what program are you using top, 2nd from left to right.

Here's what i have finally settled for with my air cooling.

---

Last edited by Bob; 25-10-2007 at 22:24.

The program is ASUS AI Suite. Like AI Booster. Just the software that came with the Mobo. Pretty much useless but at least it gives a vcore reading. Just a Png screen shot is 130kb so it's a pain to post when the limit is 97kb.
Your temps look great! You could probably set the Ras to Cas# Delay and the Ras# Precharge to 5 in bios and it will be a little quicker or even better use 4 cas timings. Check out zevia's timings as he has the same ram doesn't he?. Just a suggestion. For an example try 1m Super PI mod at your current settings and then try again after changing to 4 cas.

ah ok i have AI on my mobo disk also.
I'll check zevia's timings. You happen to know what post# it is

Here's the latest. F@H and Boinc running. I have even better temps now Plus my core #2 is visible now

---

Last edited by Bob; 25-10-2007 at 22:24.

Very happy with my overclock on this new system

Sorry no pic right now....

Motherboard: Asus P5K Deluxe/WiFi. P35 Chipset.
BIOS: 0311
CPU: Intel Core 2 E6600 (L629F).
RAM: G.SKILL 2GBHZ DDR2 D9GMH 4-4-4-12.
Overclock: 3.690GHz.
FSB: 420MHz.
CPU Temp Idle: 34C.
CPU Temp Load: Max 61C.
Cooling: Themalright Ultra 120 eXtreme 2x Yate Loon's in Push/Pull

Misc Settings:
Vcore: 1.450v.
PCIE Freq: 100.
Dram Voltage: 2.20 volts.
Dram Static Read Control: Enabled.
Transaction Booster: Disabled.
Clock Overcharging Mode: Auto.
CPU Spread Spectrum: Disabled.
PCIE Spread Spectrum: Disabled.
CPU Reference Voltage: Auto.
CPU Voltage Damper: Enabled.
CPU PLL Voltage: 1.50v.
FSB Termination Voltage: 1.40v.
North Bridge Voltage: 1.40v.
North Bridge Reference Voltage: Auto.
South Bridge Voltage: Auto.

I am hearing the P35 chipset is requiring lower vcores for overclocks and seem to get higher speed as well

congrats

Yeah it really looks that way and Quad cores are really seeing good clocks.

I ran Orthose 8 hours last night, so for me any machine I ever had can run it at leased that long I have never had any stability issues.

I have the screen shots of it I will post later, they were to big and I then I resized them smaller in but the file size turned out larger

I am still thinking with a little advice I can get 3.8 out of this chip, but 3.7 on air is more than I expected.

I also put a larger washer between my 120 Extreme and that dropped my temps 5c, now it's nice and tightly mounted

Here is a screen

Nice

Awesome MegaDETH. I haven't tried my E6600 on this board yet but by looking at yours it will fly. Guess you are a happy camper. Looks like the Push/Pull fan set up on your TR Ultra works well. I will have to try that as well

Core Temp and Speedfan says 56 and 54C! Very nice!! Go up to 4Ghz!

~

haha working on it, need some Liquid Nitrogen

Here is a Super_pi, very happy under 14

Ran across this while surfing the net and I think it's very informative on how the C2D reports temp and the usable temp limits. Definitely worth a read. Certainly helped me to understand the difference between Tcase and Tjunctuon.
Core 2 DUO temprature guide.

Thanks for the info crossg i have it bookmarked for reasons.

I got real issues with this guide on temps

I have 3 mobos
Badaxe2 975x....on water with e6600L629F@ 3600 1.38v real by DMM..idle at 32/33 on cores(Tjunct), cpu temp(Tcase) per speedfan is 38c....underload Tcase/cpu temp per sppedfan is higher than Tjunction ie core temps....WTF

965-S 965chipset from DFI
one e6600 L628A266@ 3300 1.45v idles on air at 43-45c...load in low 60s(cores) load cpu temp is typically lower

965-S third e6600L647G431 @ 3200 1.45v idle in low 30s on cores..load in high50s...cpu temp is in the low 60s max

my results are nothing what this articles states

Mobo sensors are tcase..read fron speedfan are NOT 15C lower than my core temps as read by TAT, speedfan or coretemp=Tjunction

The article does not allow me to make any sense of temps at all...each cpu I have acts differently and so does each mobo

I still say your ambient, delta from idle to load are keys..whith relative temp values being important and you must use your judgement to decide whether the temps are too high

/me Shivers when mixing water and electronics plus have seen high temps with water over air.

Hi Neal. Mine reports almost exactly what this article says. PC Probe II/CPU temp with PC Wizard (Internal heat sink or Tcase) reports 10-12 deg lower than Core 0 or Tjunction. Main thing in the article is not to let Tcase get over 65 deg and Tjunction will stay within specs. Ambient temps to load should stay within 25 degrees but that's not written in stone. Lots of variables involved but the biggest one is Vcore = heat.

Huh...my water temps are very good and much better than air by about 10C

I was afraid of water till I tried last yr..now its an addiction...pumps, blocks, radiators etc...OH MY

OK..I am looking at your numbers and maybe I missing understanding stuff still
your cpu temp is 46C=Tcase correct??

your cores temps are in the 50s=Tjunction..so what am I missing

BTW what is your cooling with a quad and load temps of 50s?

Nealh what did you pay for the water system?

I think rolling is probably making fun of my failed attempt at WC yesterday.
Yes correct (from what I understand in the article). What I don't understand is why your readings are so much different. I am using a lapped Thermalright Ultra 120 xtreme with a 120mm push fan. (1700 RPM)

Nope i've seen it happen to people i know If you don't add ice or whatever you have ambient water temps. Same as air

HAHA..LOL I am not done..still buying stuff

I never said it was more cost effective than air but there is something thrilling about building a water loop..getting no leaks and surprising your wife that you would not fry the enite setup

Storm rev2=$75
org. pump MCP655=$80
PA 160 rad=$90
MCW60=$60??
tubes, tube cutter, PTFE tape, metal worm clamps
new Panaflo 120x38 fan
distilled water, Zerex racing coolant
fan controller=$12
If i recall I spent about $400

Since...I replaced pump and top= better performance and quieter

In the last month..got a great deal on the best rad..PA120.3 for $100...so I needed a new case to fit in(need a new HDD cage and wheels for the new case) SILVERSTONE TJ07..HAHA.... if I am getting a new case...I need a new cpu block

more fans..I need some 4 pin to 3 pin connectors, 3 pin extensions....
Oh wait..I need a "backup" DDC2 since they are not made anymore(but wait I have an unused MCP655 sitting on the shelf...)
Oh wait I need sound dampening material becasue I want to try for a real quiet system(even less noise than my P180)

OK..wife has no idea what i just spent..used some cash and paypal
TJ07=$300 shipped(shipping was cheap..$19 most places wanted $25-40)
Apogee GTX cpu block, wires=$80 shipped
HDD cage/wheels=$75 shipped(this was stupid and a real rip off... )
Backup pump/better top, fans=$130(real impusle buy )
Dynamat sound dampening material(best deal from ebay) $60 for 12 sq ft..this usually no less than $80-100
Gaskets and screws=$30shipped
Total= 300 + 80+ 75+60+ 130+30=$675
shipping was killer as I bought twice from same store becasue I had no idea the pump was instock when I got...I had to get everything form like 6 stores
($80 in shipping...sucks)

I must be crazy

I kinda got carried away..on Wed and bought everything...I did not realy get Anniv present or father's day gift...and I saved some money off to the side for this stuff...my guilt is showing...oh well

I am going to move my P180 into my son's room and water cool just his cpu...otherwise I have no place to go with my P180

I could part out the Storm rev2, MCP655 and rad and recoup a fraction of there value....Storm=$40, MCP655=$40, Rad=$50