OC'ing my new e6300 system!

[Timbosan]

System configuration:

CPU = e6300 L627A828
Cooling = Stock HSF + Arctic Silver 5
MOBO = Asus P5B (vanilla) Rev. 1.03G
RAM = Corsair XMS2 DDR2-800 5-5-5-12
VIDEO = POS
PSU = Thermaltake Toughpower 750w

Max 100% stable OC:
cpu @ 3.2 GHz (458 x 7)
vcore = 1.29v (asus probe, idle)
FSB = 1832 MHz
vMCH = 1.2v
ram @ DDR 916 MHz, 5-5-5-15
vdimm = 2.1v

I think i need to give the ram more voltage to get any higher with stability. Loosening timings wont let me get 960MHz stable (but is benchable) Unfortunately 2.1v is the board's maximum setting.

What temperature monitor should i believe? Asus probe reads same as bios and Thermal analysis tool reads about 10*C lower than them both?

[MarlboroMan]

awesome chip, i liked the low voltage.

i love L627A chips, don't know why :p:

[reflux]

Use CoreTemp (http://www.thecoolest.zerobrains.com/CoreTemp/)to read the CPU temperature.

Can you get the chip any higher? I can do 3.45ghz with 1.56v through my northbridge, but I've never taken mine any higher than that.

[Timbosan]

awesome chip, i liked the low voltage.

i love L627A chips, don't know why :p:

I did heaps of reading before choosing the L627A cpu, and i am very happy with it. Your L627A also appears to clock nicely :)


Use CoreTemp (http://www.thecoolest.zerobrains.com/CoreTemp/)to read the CPU temperature.

Can you get the chip any higher? I can do 3.45ghz with 1.56v through my northbridge, but I've never taken mine any higher than that.

cheers i thought over 70*C seemed unrealistic the heatsink only feels warm. Ive had the chip to 3.36 GHz on 1.29/1.26v (idle/load) but the ram is whats limiting me it wont do more than 916MHz on 2.1v without errors. i need to do the vdimm mod or get some DDR 1000+ sticks but theyre so expensive lol

[reflux]

Icheers i thought over 70*C seemed unrealistic the heatsink only feels warm.

Yeah, CoreTemp takes the reading from the temperature sensor in the chip itself, so it's supposed to be the most accurate measure.

[Timbosan]

i have read conflicting statements concerning the location of the temp sensor...so its in the chip. what does asus probe & bios read?

[MarlboroMan]

Did you check if your IHS is concave? Maybe that is your temp problem.



Your L627A also appears to clock nicely :)


I don't know by now. When my Asus Commando arrive i will see thou ;)
Here (http://www.xtremesystems.org/forums/showpost.php?p=2209214&postcount=1) you can see a L627A-E6600 under LN2.

[Timbosan]

Did you check if your IHS is concave? Maybe that is your temp problem.

No i didnt check properly with a blade, it looked flat tho. Do you think my temps are high for the voltage?

[MarlboroMan]

Asus Probe - 72°C is too high
Intel TAT - 62°C is on the limit line

[[XC] Hicks121]

Hey man, go get yurself an Artic freezer 7 & get those temps down, they are like $20-30. My E6300 is running @ 500 x 7 & loads temps in the 50's.

Also, do check to see if yur chip need lapping, mine did, after lapping my temps dropped a good 8-10 deg.

[Leeghoofd]

yep better improve ya cooling there as this is too hot for 24/7 stable operation... look if your IHS is flat first (razer blade), then upgrade the cooler, like suggested the Arctic freezer will nible some 8°C off the stock cooler, otherwise the heavy duty ones a la Ultra120, ....

[GripS]

Actually you'll be hard pressed to find an application that will stress your CPU like orthos does. I'd say if that sucker can run 8 hours stable at that speed/voltage(which is FREAKIN AWESOME btw) then you will be fine for normal operation 24/7 without worrying about needing to lap your proc or gettting a new heatsink. I'm betting your chip won't crack 60C during regular operation.

I'm not saying don't improve your temps. But don't let these guy's scare you into thinking your gonna kill your chip.

I wonder why everyone liked that Asus P5b Vanilla. Only allowing 2.1 vdimm is weak sauce.

[Leeghoofd]

I would sleep better Grips if I knew my temps stayed in the safer green zone, Intel specifies max 65°C on the coretemp....

Indeed when I play online I get max 70% of my temps as under orthos or TAT but I prefer to have it cooler anyway

[Solarfall]

seems like a good chip bro.
but i wonder.. how high it would clock with higher vcore and better cooling,those L627A seem to clock pretty nicely, hmmm. mayby i should get a new toy for my self.

[GripS]

Wait a minute..... is this a recent e6300 you just bought and you are getting this result? Where did you buy? I want one too.:)

I hear ya. It's better to have headroom then to be right on the cusp of overheating.

[Timbosan]

Thanks for the comments guys :) I will be getting a new cpu HSF soon, just saving for that & video card. I should lap the cpu but im a bit apprehensive (ive only lapped a heatsink for my old athlon XP-M).
I will be vdimm modding my board tonight hopefully so that may let my ram do 1000+ MHz. The chip clocks very well for the voltage it'll do 3.36 on 1.29v but ram wont go higher than 960 MHz at 2.1v (hence vdimm mod).
I bought the cpu about 5 months ago, so i think its an old batch, but i just got the pc together last week.
What is the max vdimm that corsair XMS2 DDR2-800 (XMS6405 v3.1 5-5-5-12) can handle? (I cant find a data sheet)

[michaLcoughliN]

uMMM still a little high for that vcore.. I mean 1.3vcore and 62c idle? WTF? or am I reading this wrong.. that seems really high. since im running 44c Idle @ 1.45vcore.

[Leeghoofd]

are you running a stock heatsink Michalcoughlin ? otherwise you cannot compare your temps with his and it's 62 load full orthos at 3.2...

I got an E6300 27A at 1.25Vcore at 2800mhz ( Vcore on auto) does get 52°C too on a thermalright Ultra120 orthos load, IHS is very bad but I got this CPU for a friend and he will run it only on stock as it's for his kiddo ( just messing with it)

[Timbosan]

uMMM still a little high for that vcore.. I mean 1.3vcore and 62c idle? WTF? or am I reading this wrong.. that seems really high. since im running 44c Idle @ 1.45vcore.

no that 62/64*C (asus probe 72*C) is under full load orthos was running for 4 hours + when i took that screen shot. It idles at about 45*C.

[eklipze]

sweet stuff. your temps are way high for just 1.29Vcore dude. weird.yeah probably you do need lapping. hehe. i got almost the same system as you and i'm running at 2.8Ghz. can't go any further. my ram is holding me back. sweet OC though!

[xoplrak]

we got almost the same system.. still have my problems reaching 3.2ghz. :down:

[Timbosan]

I have done the vdimm mod and the vdroop mod. Now i set 1.35v in bios, i get 1.336v idle and 1.344v full load. After the vdimm mod, I had some dramas with no post a few times after boot at 2.15v or 2.24v. I fully powered off and rebooted & got overclocking failed message. After some experimenting, it seems my ram doesnt like more than 2.08v. It will do 916MHz on 2.08v but not fully tested stable yet. Im not happy about that.

I also fixed my high temperature problem - i didnt have PECI enabled in bios. I now have it enabled and TAT reads 39/41 idle, 62/64 under full load, same as core temp. Better but still need a cooler.

[raidflex]

Nice clocks with that E6300. I have one myself thats about 7-8 months old. Its got a wall at 450FSb though I just purchased the Asus P5K Deluxe, used to have the DFI OCX3200 which had its problems. But no matter which board I use the CPU won't pass 450FSB. Although I happy with almost 3.2gig on AUTO Vcore, can't complain much. Waiting for the price drops to pick up a quad.

[Timbosan]

thanx hey if you have vcore on "auto" chances are its not really at 'stock voltage' as vcore will be increased as you overclock. Manually set it in bios you might have better temps.

[Timbosan]

Good news! - I got an ASUS Silent Square HSF today. The base is very smooth, and the design appears to be efficient and quiet. I had way too much AS5 on the cpu from stock HSF, so i spread out what was left on it after i removed the stocker and it was plenty.

My new temps at 3.2 GHz @ 1.344v are 30*C idle, 48*C full load orthos, at 16-17*C ambient. Thats almost a 20*C reduction in full load temp & a 15*C reduction in idle temp. Also note PECI is disabled in bios.

I also have new ram - its kingston 533 with PSC chips. So far its running a 72% overclock at 5-5-5-12 totally bench, memtest & game stable (see sig).

It loaded windows at 3.4 GHz (486 x 7) @ 1.344v | DDR 972 MHz 5-5-5-12 @ 2.16v! It failed orthos after about 3 minutes though lol. Im gonna have a fun next couple of days :) I'll post some screenies & benches in next day or two.

[michaLcoughliN]

are you running a stock heatsink Michalcoughlin ? otherwise you cannot compare your temps with his and it's 62 load full orthos at 3.2...

I got an E6300 27A at 1.25Vcore at 2800mhz ( Vcore on auto) does get 52°C too on a thermalright Ultra120 orthos load, IHS is very bad but I got this CPU for a friend and he will run it only on stock as it's for his kiddo ( just messing with it)

http://i169.photobucket.com/albums/u202/michalcoughlin/untitled2-1.jpg

44c Idle .. 58c Load
1.4 Vcore ..
471FSB
mem 1:1


http://i169.photobucket.com/albums/u202/michalcoughlin/untitled-2.jpg

[Timbosan]

UPDATE! I have some screenies and benchmarks for ya's :)

1) Check out the full load temps with ASUS Silent Square + AS5

2) Check out my DDR2-533 ram overclock :D

3) Everest Read @ DDR 916MHz 5-5-5-12 | 2.16v

4) Everest Write @ DDR 916MHz 5-5-5-12 | 2.16v

5) Everest Copy @ DDR 916MHz 5-5-5-12 | 2.16v

[Timbosan]

SiSoft Bechmarks & SPI 32M:

1) CPU arithmetic

2) CPU Multi media

3) Ram bandwidth

4) SPI 32M

[Timbosan]

With 1.384v vcore this cpu is stable at 3.4 GHz. Had to loosen ram timings to 5-5-5-15 for 972 MHz @ 2.16v but its stable. I'll get a fan over the ram then i can give it more volts :D

[BigGaroupa]

That's a pretty good overclocker.

I used to have a Core2 E6300 only got up to 3.06 GHz, I don't know if it was my cheap RAM or my Asus Striker.

Why didn't you opt for a E6420 or E6320? Also E6600's have dropped in price substantially. The extra 2MB cache would help.

[Timbosan]

Cheers. I chose the e6300 as the e6320 and e6430 were not available when i purchased it. I was attracted to the high FSB achievable for the price.

[kiki]

3.4 :up: :clap:
good job getting there.

what are all your voltage settings to get stable there.

managed to squeeze mine up to 3.27ghz. had to up the cpu pll voltage to 1.7 and pci-e frequency to 105.

[michaLcoughliN]

kiki 1.7voltage? ummmmm typo right?

[Timbosan]

3.4 :up: :clap:
good job getting there.

what are all your voltage settings to get stable there.

managed to squeeze mine up to 3.27ghz. had to up the cpu pll voltage to 1.7 and pci-e frequency to 105.

Cheers im pretty happy so far. I should note i have vdroop modded my board so no more droop. Vdimm mod also completed so i have +.16v over bios setting.

Settings for 3.4GHz:

vcore = set 1.38 in bios real = 1.376v idle | 1.384v load.
vdimm = 2.0v in bios real = 2.16v
vMCH = 1.2v
pci-e = 105

[Timbosan]

I have new ram! I got a 1GB kit of Corsair CM2x512-8500 v1.4. So far its running 4-4-4-8 @ 972 MHz at 2.24v. Heres some benchies:

[MaK2000]

What did you do for VDimm mod? I know that you are not running that at 2.1v.

[Timbosan]

I worked out and am using the 'conductive paint/pencil' vdimm mod. Details are here:

http://www.xtremesystems.org/forums/showthread.php?t=109099&page=23

For DDR 972 MHz | 4-4-4-8
Vdimm = 2.24v (measured with a dmm).

[Timbosan]

Update, this is board or cpu limited, wont go higher 100% stable. Ram will do 1200 MHz @ 2.16v (3rd pic).

The board is fully hard modded (vdroop, vdimm, vMCH)