Problems with Core2Duo Overclocking please help!!

[mgacam2]

Alright so i recently just purchased a core2 duo 6300 along with a asus p5ld2-vm motherboard. Now i am having serious problems overclocking it. right now iv hit a barrier of 2.7 ghz. Heres the first problem, when i go into the bios and try to raise my cpu frequency one more it dies (currently set at 387) so i lower it and it doesnt start again. For some reason for the last few bits of over clocking it would reverse clock. As my cpu frequency went up my speed went down. eg. 388 freqency and speed drops to 2.6. What is causing this. I also have my PCI frequency running at 127 mhz right now. That was the only thing that got me to overclock it. Whats a safe level that i can set this at and can anyone suggest any settings for me because this processor deffinitly has more to it. By the way i doubt my problem is memory as i have OCZ 6400 memory with cas 4 timings. Iv tried everything possible to get it past the 3 ghz mark but i cant figure it out. I appreciate any help

- Mike

 

[Duvie]

Why do ppl continue to waste their money on Asus mobos instead of using a proven winner like the Gigabyte DS3 and S3 mobos? I mean c'mon!!!

I have had 2 experiences 1st hand with them..

1) E6300 and S3 and I get 3.4ghz (7x485) stable...bios wont boot at 3.5ghz but windows ocing app got it there but since I only had a stock heatsink I didn't want to use over 1.45v. It was for a buddy so I didn't add a Ninja Scythe to it where I would have given it 1.5v and be fine and likely could have gotten 3.5ghz...

2) E6600 and DS3...currenlty running 7x466 stable...will run and post as high as 3.46ghz but cannot find 100% stability


MarkFW900 with an E6300, Typhoon cooler, S3 mobo runs at 7x500 stable....


For E6300 and E6400's...proven winners for high FSB mobos are the Gigabyte DS3 and S3 mobos....E6600's like the Asus mobos better...


To the op...


1) Why are you running such a high PCI frequency? I would lock that or set it to 101 manually.

2) what voltages are you giving the cpu, chipset, fsb, ram?

3) have you tried cas 5 settings...You need to employ isolation methods when you OC.

4) have you tried dropping the multiplier lower and seeing if you can get the fsb higher. See if the hold up is associated with total cpu clock or fsb.

5) have you tried to actively cool your northbridge chipst?

 

[mgacam2]

the pci frequency is running that high due to reports iv read of the asus board underclocking it. I read in forums that people werent able to overclock this board without increasing the pci frequency. I increased my pci frequency everytime it crashed at an overclock attempt and it worked. But now it is no longer taking effect. I have also tried my cas5 settings. Aswell i cant quite figure out how to adjust my multiplier. Does asus call it something different . I also installed pc probe and my northbridge is doing pretty alright at 40 degrees. Also how do i get the fsb higher. Is that what the cpu frequency is doing? Im not new to overclocking but this board has different terms and i havnt done anything since the days of my old athlon thunderbird. in terms of my volage settings i have it set to 1.37 my chipset im giving 1.5 v and my ram is 1.8 something .

 

[bjp999]

I have an ASUS P5W DL (which OC's very well BTW). I am not familiar with the MB you have so can only give some general advice / things to check.

In addition to Duvie's questions / suggestions, here are a few more from my experience:

1 - Are you running stock cooling or aftermarket HSF (which one). Using AS5?
2 - Run orthos or dual prime95 for a few minutes, and then run CORETEMP and report your coretemps at the highest FSB you've been able to get to
3 - Normally if your rig is stable at one freq, and then one more FSB causes it not to boot, its something to do with the memory. Sometimes the BIOS does funny things with secondary memory timings (timings it won't let you see or change manually) that cause it not to post. Try setting your memory timings to "SPD" and see if it helps. You might also try raising the MCH volts (helps with some memory problems).
4 - Are you running memory dividers or 1:1? What is your reported memory frequency?

 

[mgacam2]

1.im running stock coolers
2. coretemp hovered around 39-49 degrees running my fsb at 387 which is currently 2.6 ghz
3. what does SPD stand for? is this the automatic one?
4. I cant seem to find my memory divider or 1:1 thing i dont know where that is nor do i think i have it
my reported memory frequency is 748 mhz completely stable. Iv lowered it down to 500 and something to try overclocking more and had no luck

 

[bjp999]

Originally posted by: mgacam2
1.im running stock coolers
2. coretemp hovered around 39-49 degrees running my fsb at 387 which is currently 2.6 ghz
3. what does SPD stand for? is this the automatic one?
4. I cant seem to find my memory divider or 1:1 thing i dont know where that is nor do i think i have it
my reported memory frequency is 748 mhz completely stable. Iv lowered it down to 500 and something to try overclocking more and had no luck

39-49 is a large range for coretemp when running dual prime. Mine moves 3-4 degrees tops. Please double check. Are you sure these are the coretemps under full load, and not the BIOS reported temp?

SPD is the automatic one. Have you tried that?

Dividers are a way to increase or decrease memory speed. 1:1 is normally the best and most stable for most people. Most newer MBs report them as memory frequency and not ratios - if you memory frequency is 748MHz at FSB of 387, you are running 1:1. CPUZ will report the divider. It will also show you the SPD info from the memory chips.

Duvie asked about voltages for MCH, ICH, FSB, and CORE. Can you report those? Did you try increasing MCH volts?

 

[mgacam2]

hey sorry i meant 39-40 and ill check my volts now

 

[mgacam2]

CPU Freq - 372 Mhz
DRAM Frequency - 744mhz
PCI Express Frequency - 125
PCI Clock Sync - Fixed at 33.33 mhz
Memory Voltage - 1.812 V
MCH Chipset Voltage - Auto
CPU V Core Voltage - 1.3625 V

CPU Config

Microcode Updation Enabled
Max CPUID Value Limit - Disabled
Executable Disable Function - disabled
Enhanced C1 control Disabled
Speed Step Technology - disabled

Ram Timings - 4, 4, 4, 12

write recovery at 4 clocks

 

[Duvie]

1) That ram is waaaayyy too low...BUmp thast up to 2.0v right off the bat...***I know you will say it isn't running stock speed yet at only 768, but in a lot of these boards especially once you start to OC things they need a boost.



2) chipset voltage needs a boost as well..remember 266mhz is stock speed and you are at 378? That needs a boost of .1v minimum...maty need more better. The boost will add heat hence why I asked if you were actively cooling your NB chipset

3) Could try a voltage boost only cause I know Asus mobo undervolt a bit and even more under loading...You should be safe to 1.4v at least with stock cooling...though the heat will climb fast under load.

4) ram 4-4-4-12 are very aggressive in early ocing...I would set them at 5-5-5-15 and boost vdimm to 2.0v and push past 400fsb...

 

[Accord99]

I think your problem is the p5ld2-vm uses a 945G chipset. It's an older mainstream chipset and is unlikely to match the overclocks of the new P965 or even the 975x.

 

[mgacam2]

alright so i tried your suggestion...now when i go to say 373 for my cpu freq it lowers my speed when i restart... when i go 371 it doesnt start and hangs... when i go to 400 it drops to 2.04 ghz speed from 2.6 ..... when i put it to 369 or lower it lowers my clock speed... whats up with that

 

[bjp999]

Are you running the latest BIOS?

I did some searching and did not find anyone using this MB with a Conroe. If you figure out a way to actually get your incrased FSB to result in a faster speed, I'd try your memory at auto (SPD).

Is it too late to return your MB and get something newer? If not, return it and do some searching for the best MB to get - some are recommended for the E6300/e6400, while others (like mine) are recommended for the E6600/E6700. I think Duvie had some good recommendations in his first post in this thread from Gigabyte.

 

[mgacam2]

i might be able to return the mb... or exchange it ... no wait i cant i ripped open the bag for the sata cable...hmmm anyone got any ideas? what gigabyte board anyway

 

[Duvie]

120 or so shipped form newegg.com

Gigabyte 965p-S3

 

[mgacam2]

uggggg i dont want to spend any more money.... is it a micro atx board? because that is what i need...any suggestions for a micro atx board?