Need advice E6600 on P5B Deluxe

**Thcm** · 08-09-2006, 03:32 AM

Hi,

got my retail E6600 on monday and plugged it on my Asus P5B Deluxe Wifi (0502 Bios) and started overclocking. At default voltage I only get about 2700 MHz and with a vcore 1.475 I get 2800 MHz. I tried higher speeds but after a few minutes dual prime the system simply restarts itself. Ram is 2x Aeneon 512 DDR2 667 Mhz 1:1. I thought I could at least get 333 FSB x 9 = 3000 MHz, but even with 1.575V there is no go. Are these retail Core 2 Duo really so bad?

**Thcm** · 08-09-2006, 03:50 AM

Thanx! I think I have the latest bios installed. I tried setting the PCI-E to Auto or 100 MHz, but I don't think it makes a difference, since I only have an old PCI-Graphics-Card installed. I also tried to push the mch voltages a little. Perhaps here is someone with the same retail cpu board combination and likes to share his bios settings.

**mortster** · 08-09-2006, 04:42 AM

Hi there.

I am currently getting to grips with an E6300 and the P5B Deluxe, with 2Gb of G.Skill DDR2-667 (2GBLA kit) (should have gone for the HZ DDR2-800 set in retrospect!)

Anyway, I am currently on bios 0402 with a prime/memtest stable 320fsb.
If I go anywhere near 330fsb+ then I need to change the VDIMM from AUTO to at least 1.95v (which is +0.15 from the 1.8v stock)
I haven't had to change anything else at the moment (VCORE etc. all on AUTO, except locked PCI-E at 100 and PCI at 33.33)

This board currently has some issues I think with the various ram dividers and setting SPD manually. (unless it just doesn't like the G.Skill I have).

So, what is your RAM rated at volts wise ? My G.Skill is rated 1.8v to 2.0v.

What I dont understand is that if I have my fsb at stock (266) then I can change my RAM divider to 4:5 and run it at DDR2-667 with out any changes to the VDIMM. But if I move my fsb to 333 and set my RAM divider to 1:1 to also run at DDR2-667 I have to up the VDIMM ??
I can also run my sticks at DDR2-800 when I am sitting at the stock 266fsb, again without any VDIMM changes.
CPU-Z verifies the RAM working at 333 and then 400 (with 4:5 and 2:3 ratios).
Just doesnt make any sense ?

Si.

**sparks** · 08-09-2006, 04:55 AM

Well I get confused on some of the recommendations since the main posters are after numbers and may or may not be after long term stability.

its hard to know what is safe and not safe to turn off some times as far as 24/7 performance compared to one super pi and a reboot..

And a lot of things that are being turned off fall under another issue
turn this and that off...wait won't that hurt performance?
Yea we just turned a 6800 into a celeron but it will now do 500+ fsb.

Just my 2 cents on the bios settings

they as well as myself need to know what is smart to turn off
as in unneeded things that will help to oc without loosing major in another area

sparks

**Thcm** · 08-09-2006, 04:56 AM

Good idea! My ram is rated at 1.8v. It's just simple Aeneon 667s DDR2 and I don't know how much juice they can handle. I'll give it a try. I still have my Crucial Ballistix 2 GB Kit (2,3V 890 MHz 4-4-4-12) in my work pc.

**Thcm** · 08-09-2006, 05:02 AM

Good opinion sparks!

I don't want to break any records! My goal is to hit 3.0 - 3.2 Ghz 24/7 without any wild stuff. I'm just testing on a workbench using an Arctic Freezer 7 Pro and when everything is 24 hours dual prime stable I'll plug it in my work pc using my alphacool watercooler. I don't think temperature is an issue here. Coretemp reports a max of 56 degrees celsius while running dual prime on air.

**mortster** · 08-09-2006, 05:14 AM

This is not quite the same chip as yours, but they stuck 2.2v through them:
http://tomshardware.co.uk/2006/02/27..._uk/page19.htm

This page is also very interesting. If you can find out what ICs your RAM has then it will help even more.
http://www.anandtech.com/mb/showdoc.aspx?i=2797&p=17

I would go up in +.05 increments with the VDIMM and see how you get on. I wouldn't personally go over 2.0v with the RAM you have.

Memtest86+ is your friend, grab the .iso, burn a CD and use it as a basis for testing the stability of your memory at the different speeds/voltages you set before then going on to the other windows based stability tests.

Also, a wierd thing with my P5B is when I start oc'ing by a certain amount when I turn it on it starts for a few seconds, then powers down, then a few seconds later powers on again and is ok (it doesnt revert the settings or anything!). At first I thought it might be adjusting the boot/fsb strap, but this doesnt appear to be changing from the 1066 strap... Does this happen to you ?

**herderien** · 08-10-2006, 03:19 AM

Originally Posted by mortster

Also, a wierd thing with my P5B is when I start oc'ing by a certain amount when I turn it on it starts for a few seconds, then powers down, then a few seconds later powers on again and is ok (it doesnt revert the settings or anything!). At first I thought it might be adjusting the boot/fsb strap, but this doesnt appear to be changing from the 1066 strap... Does this happen to you ?

same thing here, i think it's some kind of windows reboot to modify certain settings (maybe related to crash free bios or someting) but for the bios.

i booted 3,3Ghz with the board and a retail cpu only by changing to 1,4125 vCore, it was a little unstable under prime, i'think with a little vcore raise i can go further and more stable

**rpg711** · 08-09-2006, 05:11 AM

Originally Posted by mortster

Hi there.

I am currently getting to grips with an E6300 and the P5B Deluxe, with 2Gb of G.Skill DDR2-667 (2GBLA kit) (should have gone for the HZ DDR2-800 set in retrospect!)

Anyway, I am currently on bios 0402 with a prime/memtest stable 320fsb.
If I go anywhere near 330fsb+ then I need to change the VDIMM from AUTO to at least 1.95v (which is +0.15 from the 1.8v stock)
I haven't had to change anything else at the moment (VCORE etc. all on AUTO, except locked PCI-E at 100 and PCI at 33.33)

This board currently has some issues I think with the various ram dividers and setting SPD manually. (unless it just doesn't like the G.Skill I have).

So, what is your RAM rated at volts wise ? My G.Skill is rated 1.8v to 2.0v.

What I dont understand is that if I have my fsb at stock (266) then I can change my RAM divider to 4:5 and run it at DDR2-667 with out any changes to the VDIMM. But if I move my fsb to 333 and set my RAM divider to 1:1 to also run at DDR2-667 I have to up the VDIMM ??

u said ur ram is rated from 1.8 to 2v... then put it at 2 volts
i have OCz value ddr2 533 running at 2v so u dont have anything to worry about

does it have a good heatspreader? if not, u can get the thermaltake active heatspreaders, those seem good
also, the fsb of 266 means the ram will need to run at ddr2 800 for stability ( i think)

**mortster** · 08-09-2006, 05:19 AM

Originally Posted by rpg711

u said ur ram is rated from 1.8 to 2v... then put it at 2 volts
i have OCz value ddr2 533 running at 2v so u dont have anything to worry about

does it have a good heatspreader? if not, u can get the thermaltake active heatspreaders, those seem good
also, the fsb of 266 means the ram will need to run at ddr2 800 for stability ( i think)

Thanks v. much for the advice. I am new to oc'ing, and volt increases scare the crap out of me, but like you say if it's rated at 2.0v then it must be OK to run like that.

Yeah these GSkills have heatspreaders.

What I am hesistant about is that the label on the heatspreader shows 1.8 to 2.0v but the GSkill site only lists them at 1.8v now.... Oh well, if they fry then I can get some more OC friendly RAM

lol

**rpg711** · 08-09-2006, 05:27 AM

well... if it does fry u can complain to gskill that it was listed for 2volts... then they will give u a free new one

if u do fry and u dont get a new one...http://www.newegg.com/Product/Produc...82E16820146565
that one is good, because of the 2.2 stock volts, u can raise it very high, like to 2.4 or 2.45 volts
and because it costs 350$ LOL

**soki** · 08-09-2006, 07:52 AM

I think your rams(aeneon) hold you back. Try with other good chips like micron and elpida.

**Thcm** · 08-09-2006, 07:59 AM

Yes, that's next I'll do. Have to wait half an hour, then I close my shop and pull my crucial ballistix out of my work-pc!

**rpg711** · 08-09-2006, 08:37 AM

you...have crucial memory in a work pc? their not worthy

**Thcm** · 08-09-2006, 08:44 AM

Why, they're great modules! But with the P5B Deluxe they make no difference! I don't understand why I can't go much higher than 320 MHz FSB? I tried nearly everything, but even with a lower multiplier like 6x I can't get my E6600 to post on a higher FSB of 320 MHz!

**rpg711** · 08-09-2006, 09:38 AM

raise voltages, fsb voltage up by .1v nb voltage by .1v cpu up by .05v memory up by .1v
that should help

**herderien** · 08-11-2006, 03:30 AM

366 stock vCore ?

**Thcm** · 08-11-2006, 03:53 AM

Yes, dualprimed for an hour. Now I switched to 380 MHz FSB, but I had to bump the vcore from the default 1.325v to 1.375v to be stable at dualprime for at least a few minutes. I'm going to test at least half an hour and then I'll try to reach 400 MHz (my final goal 24/7 on water). Temperatures are rising: 333 MHz 48 degrees, 366 MHz 52 degrees and at 380 MHz 58 degrees celsius. Tested with Coretemp. Perhaps I have to switch to my alphacool watercooling system soon....

**rpg711** · 08-11-2006, 04:31 AM

hmm thats weird... most people with conroes say the temps keep dropping... i mean, idle raises alittle
but load drops alittle

**herderien** · 08-11-2006, 04:58 AM

those temperatures make sense compared to my air cooling, since it should lower a little when ceramic is "cooked"

**Thcm** · 08-11-2006, 06:09 AM

Yesterday evening coretemp showed 52 degrees and this morning it dropped 48 degrees. Dualprime ran stable vor 1 hour with 380 MHz FSB x 9 and 1.400vcore, now going for 390 MHz....

**Catalyst2211** · 08-11-2006, 06:25 AM

So you can get higher clocks using the DQ6?

**Thcm** · 08-11-2006, 06:57 AM

Sorry, but I only tested the P5B Deluxe up to 333 MHz FSB. Currently I'm stuck between 380 and 400 MHz FSB. Screen get's black after a few minutes and restarts, perhaps I've hit a temperature wall.