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?
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.
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.
Last edited by mortster; 08-09-2006 at 04:54 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
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.
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.
u said ur ram is rated from 1.8 to 2v... then put it at 2 voltsOriginally Posted by mortster
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)
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 ?
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.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)
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 RAMlol
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
Tried the new 0504 bios and set the multiplier down to 6 and tried to start the board with 333 Mhz and it doesn't boot at all! I think it has something to do with the rams, mainboard or the ram divider. Normally they should run 1:2 with 666 Mhz full in spec. I'll try later with my Crucial Ballistix.
I think your rams(aeneon) hold you back. Try with other good chips like micron and elpida.
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!
you...have crucial memory in a work pc? their not worthy
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!
raise voltages, fsb voltage up by .1v nb voltage by .1v cpu up by .05v memory up by .1v
that should help
Thx for all your help, but I think either the cpu or the board has a fsb-wall! I can't get this damn board to post with 321 Mhz FSB. 320 MHz works nice with most settings on auto. I tried all multipliers, raised all voltages step by step to max values, disabled all devices on the board, tried 3 different bios (0405, 0502 and 0504), tested 3 different ram modules. I also tried 330 MHz, 333 MHz, 350 MHz, 360 MHz, 365 MHz, 366 MHz and 400 MHz, but no go!
Tomorrow I'll get another E6600 and an E6400 to try, thought the P5B Deluxe would be a nice board, but I'll think I try another brand and or board.
Sigh...
try the e6300, many people claim to get to 3.1 ghz on that board
Just got my E6600 and E6400 cpu's. Currently I'm dual priming the E6600 with 3.0 GHz 333 MHz FSB with Auto Core Voltage. I flashed the board back to 0405 and system is running error free for about 15 mins. I think my first cpu was real crap! Tomorrow I'll get Gigabyte 965P-DS3, DS4 and DQ6... way to go!!!
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
Last edited by herderien; 08-10-2006 at 03:21 AM.
Core i7 2700k@4,8ghz HT off- 1.41v / Gainward GTX580 GooD 850/1700/2200 / 2X4Gb G.Skill Ares 1833C9 / Z77 Sabertooth / Crucial M4 64 Gb / WD 320Gb and 640GB / Corsair H80 / Corsair 620 HX
oh ya!!! i finally figured out... ur pci-e and pci bus is probably really high clocked, put the pci-e back to 100 mhz and the pci back to 66 mhz
that should make it atleast post
Try check your memory timings with CPU-Z and see if they are along way from what they should be. Like mine here is wrong on my P5B Deluxe with my kingston memory. i ahd to up the memory voltage to get it to work.
And another example from another person here:
Crunching for Comrades and the Common good of the People.
dont check anything with cpu-z... it usually reads it wrong, check everything directly in the bios
I'm having the same problem with a P5B vanilla and an E6400. Everything up to 315 or 318 FSB works great, but a setting like 333 crashes almost immediately in Prime.
I've learned Kingston RAM is very very fussy. I tried setting the settings by hand to 5-5-5-15, which is what it should do at 667, and it crashes immediately. Letting the board SPD it wrong to 4-4-4-12 and cranking the ram voltage to get it stable gives me maybe 10-15 minutes of priming before it dies. Currently trying with a customer's OCZ PC8000 stuff... if this doesn't do 333 on this board, I'm ready to shoot the board.
Update: Still running strong on this OCZ stuff. Going to trade in my kingston for a pair of Corsair XMS2 PC6400 sticks. I love working retail
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