IP 35 Pro + Q6600: How to OC to 3.6????

[mjavid]

Anyone can tell me what settings to use.
My memory is Kingston ,Value RAM 667 (Works nicely at 1.8v usually) Q6600 is G0.
I increased FSB to 400, left PCI at 100 and upped the core, MCH and VDIMM a notch since I went upto 3.4 easily previuosly.
Memory was at 1:1 ratio (800 MHz), and all settings were on Auto.

I failed to even POST, let alone get into WinXP!

I am using air cooling (Freezer 7 Pro) so I would like to use the lowest possible core voltage.

I don't have the time to experiment too much and i'm a novice OCer, so I would really appreciate help to get me to 3.6 Ghz if possible.

Thanks,

M Javid

 

[jeffw2767602]

Bad News, to get 3.6 you are going to have to experiment a bit. You will probably need to go over 1.4v vcore and you will also likely need a better cooler.

 

[Markfw]

Change the multiplier to 8, and up vcore to 1.45 You will get a lot of vdroop with that core, and 3.6 is not easy to get. 3.2 is with that chip though.

 

[MarcVenice]

3.6ghz is near impossible if not completely inpossible using an arctic freezer 7 pro, it's going to heat up so hard that you can bake eggs on the heatsink. Not to mention you are using ddr2 667 ram, if you up your FSB to 400, you're making the ram run at 800mhz, way above spec. I pretty much doubt value kingston ram will run at 800mhz using the stock vram voltage and without loosening the timings.

 

[Markfw]

Originally posted by: MarcVenice
3.6ghz is near impossible if not completely inpossible using an arctic freezer 7 pro, it's going to heat up so hard that you can bake eggs on the heatsink. Not to mention you are using ddr2 667 ram, if you up your FSB to 400, you're making the ram run at 800mhz, way above spec. I pretty much doubt value kingston ram will run at 800mhz using the stock vram voltage and without loosening the timings.

No, the ram will be running @400.

 

[kenrippy]

you're going to have to use some dividers to keep your ram closer to spec. i have 4x1gb ballistix ddr800 so i haven't messed with the dividers much.

it takes me 1.4775v to get my G0 to run prime stable at 3.6ghz 400x9. and that's with a tuniq tower. under load it tickles 71c, so i leave EIST & C1E enabled to keep the idle speed & vcore down. from what iv'e read, those can only be enabled (or work correctly) when you're using the default 9x multi. so, when idle it runs at 2.4ghz (400x6) - speedstep drops the multi down to 6x when it's idle.

i can give you a rundown on my bios settings if you want. why don't you list the guts of your machine, specifically how many sticks of ram you've got.

 

[MarcVenice]

Huh mark, his ddr2 667mhz ram is running @400 when he ups his FSB to 400, you trying to confuse me, you on crack or something? If your FSB is at 400, then the effective speed of you ram will be 800mhz, with the FSB and RAM runnin in sync, 1:1. I don't think p35 mobo's can do less then 1:1?

 

[ArchAngel777]

Originally posted by: MarcVenice
Huh mark, his ddr2 667mhz ram is running @400 when he ups his FSB to 400, you trying to confuse me, you on crack or something? If your FSB is at 400, then the effective speed of you ram will be 800mhz, with the FSB and RAM runnin in sync, 1:1. I don't think p35 mobo's can do less then 1:1?

Correct, 1:1 is the lowest it can go.

 

[mjavid]

Originally posted by: kenrippy


i can give you a rundown on my bios settings if you want. why don't you list the guts of your machine, specifically how many sticks of ram you've got.

If I understand correctly what a divider is, the lowest ratio I have is 1:1, and that is what I used.

I have two sticks of 1 GB, and I did'nt think it would be much of a problem running it at 400 (800).

Please do give me your BIOS settings.

Thanks,

M Javid

 

[E6700]

i think ur oc failed bc of ur value ram. i reached 3.6ghz easily by just raising vcore to 1.46, no need to upped MCH. u have a high end cpu/mobo, why value ram? lol

 

[mjavid]

Originally posted by: E6700
i think ur oc failed bc of ur value ram. i reached 3.6ghz easily by just raising vcore to 1.46

I don't think so, the N5 type I have is said to be easily OC'ed to 800 MHz. I had it running at 712 at 1.85V. I think I need to go up to the higher vcore you used. Will post what happens later today!

Originally posted by: E6700
..... u have a high end cpu/mobo, why value ram? lol

I did'nt originally want to go over 3GHz, and it worked great for that at default 1.8V.

 

[MarcVenice]

Perhaps the value ram can be oc-ed to 800mhz, but it might need more voltage and you will probably have to loosen the timings somewhat. Usually ddr2 667mhz gets sold with lower timings then most ddr2 800mhz ram, at least lower then 4-4-4-12, I doubt the ram can be oc-ed to 800mhz AND run at lower timings then normal ddr2 800mhz ram, or they would be selling the ddr2 667mhz ram as ddr2 800mhz, would they not ?

 

[mjavid]

Originally posted by: MarcVenice
....Usually ddr2 667mhz gets sold with lower timings then most ddr2 800mhz ram, at least lower then 4-4-4-12, I doubt the ram can be oc-ed to 800mhz AND run at lower timings then normal ddr2 800mhz ram, or they would be selling the ddr2 667mhz ram as ddr2 800mhz, would they not ?

That does make sense, but even at 333 FSB (667 MHz) the RAM is running at 5-5-5-15. Only at
266 FSB (533 MHz) is it supposed to be at 4-4-4-12. These are the timings I got with CPU-Z. I am a novice OCer, so please correct me if I have misunderstood the CPU-Z info

 

[MarcVenice]

I'm not true expert either, not when it comes to CPU-Z, I'm unsure wether it reads the ram, and if those timings are factory given, and will work 100% gauranteed, but the timings on your ram should be mentioned somewhere in the name of it. Just check the box they were in, and write down the code, google it, and you should know the timings it's supposed to run at, when running the ram at 667mhz.

It could very well be that your ram has 5-5-5-15 timings at 667mhz, and if that is so, I very much doubt it will run at 800mhz with 5-5-5-15 timings, try 6-6-6-18 instead.

 

[Shimmishim]

cpu-z reads the timings that is set in the bios as well as the default spd timings.

to push 400 with your value ram, just loosen the timings to 5-5-5-15 and leave everything else on auto.

increase your vdimm to 1.9 or 1.95 and see if it'll boot. if not then try a little higher.

if its not your memory then it's your chip.

try messing around with the last two % values which are set to 67% by default i believe. i run my Q6700 at 70 and 66 at 3.7 ghz stable. when it ran 67/67, it wouldn't run prime95 at all. after i tweaked it, it ran for 25 hours w/o crashing.

 

[Markfw]

Originally posted by: MarcVenice
Huh mark, his ddr2 667mhz ram is running @400 when he ups his FSB to 400, you trying to confuse me, you on crack or something? If your FSB is at 400, then the effective speed of you ram will be 800mhz, with the FSB and RAM runnin in sync, 1:1. I don't think p35 mobo's can do less then 1:1?

oops, right, that 333 for memory, and he is trying to run@400. Yes, on crack I guess.

So if he stays@9x divider, then 3.0 ghz is the fastest he can run with memory in spec. I say that may be his problem.

 

[SerpentRoyal]

Originally posted by: mjavid
Anyone can tell me what settings to use.
My memory is Kingston ,Value RAM 667 (Works nicely at 1.8v usually) Q6600 is G0.
I increased FSB to 400, left PCI at 100 and upped the core, MCH and VDIMM a notch since I went upto 3.4 easily previuosly.
Memory was at 1:1 ratio (800 MHz), and all settings were on Auto.

I failed to even POST, let alone get into WinXP!

I am using air cooling (Freezer 7 Pro) so I would like to use the lowest possible core voltage.

I don't have the time to experiment too much and i'm a novice OCer, so I would really appreciate help to get me to 3.6 Ghz if possible.

Thanks,

M Javid

Kingston "N5" ValueRAM should be able to hit 400MHz with 2.0-2.1V. I've seen them at 4-4-4-12-2T. 5-5-5-15-2T is a sure thing.

 

[mjavid]

OVERCLOCK SUCCEEDED!

I increased VCore to 1.4675 and VDIMM to 1.9.
Memory timings were 5-5-5-15-2T (on auto)
I ran Super Pi after running my CPU fan at 2400 RPM (Freezer7 Pro) and core temps measured with PC Wizard 2008 stayed below 60 C.
My thanks to you all, especially E6700, Serpent and Shimmishim.

Serpent, any experience with MSI P35 Neo MB (please see my topic in MB forum)

M Javid

 

[SerpentRoyal]

The key is to watch your coretemp under Prime/Orthos Large mode. 1 hour test is adequate. Use the lowest Vcore and the highest FSB while maintaining CPU core temp under 65C. Download Coretemp 0.95.4 from the web.

N5 will normally run fine at stock NB voltage. However, you may need to bump up by one or two notches with the MSI if you encounter stability issue.

 

[jeffw2767602]

Haha your chip is going to absolutely ROAST under prime 95.

 

[mjavid]

I don't think I will stress my system so much in the real world!

 

[kenrippy]

nice work, congrats

 

[aigomorla]

Originally posted by: jeffw2767602
Haha your chip is going to absolutely ROAST under prime 95.

expecially under small FFT's