Help overclocking E6850 (advice needed)

November 3, 2009 at 05:09:03
Specs: Vista Premium 32bit, E6850/4x1GB RAM
So I decided to finally overclock this thing after two years having it. I was planning on just getting a new CPU but thought 'what the hell, I'll just try to get all I can out of this one'. Also I'm short on cash.

Well after lots of research and about 7 hours testing various settings, plus lots of BSODs, I've come asking for advice.

First off the system details:

CPU: E6850 cooled with thermaltake big copper heatsink
RAM: 4GB PC2-6400 crucial ballistix at 5-5-5-15 ( I relaxed the timings from 4-4-4-12 for oc purposes)
Motherboard Gigabyte GA-P35-DS3R rev 1
PSU: 650W Silverstone
OS: Vista 32bit.

My goal - to reach stable 3.6GHZ overclock. Stable meaning (to me) at least 6 hours in orthos beta running two at a time (two for each core). The best I got yet was almost two hours before BSOD.

I've been using Speedfan to monitor temps and defaults are 39 and 42 one each core. After about 30 mins temps seemed to peak at about 68 to 69 C for each core. They seemed to jump up and down though (e.g. it'd go up to 68 then back down to 63). I know this is a pretty high temp but I don't think that's what's causing the BSODs. If so I most likely think it would've crashed right away.

On to my Bios settings. I have the ram set at 5-5-5-15 as previously mentioned. I'm not overclocking the ram at all (keeping 1:1) so I have voltage on auto. After looking at advice on other forums I've tried turning off all non essential Bios functions (like TE2 thermal monitoring which lowers vcore and clocks when the CPU overheats). I do however have a warning set to pop up if the CPU hits 70C. Don't know how effecient it is though as I had it on 60C previously and as I mentioned speedfan was reporting well above that.

The almost two hour time was achieved with a 1.42(something) vcore although cpuz seems to never report above 1.37 for some odd reason. I tried raising fsb voltage by one after that but oddly enough my system crashed earlier so I'm leaving everything alone except vcore.

On to the questions. Does this seem like a particularly high vcore for the overclock I'm doing? From looking around it would seem so.

Also, any advice on what I can do to achieve greater stability? Or does anyone have a system similar to mine and could recommend some settings they were successful with? I need all the help I can get because I won't rest until I hit the mark! :D

Thanks.



See More: Help overclocking E6850 (advice needed)

Report •


#1
November 3, 2009 at 06:32:34
"RAM: 4GB PC2-6400 crucial ballistix at 5-5-5-15 ( I relaxed the timings from 4-4-4-12 for oc purposes)"

You're not gonna be overclocking the RAM so there should be no need to change the timings. Just make sure the RAM voltage is set as per manufacturer's spec...do not use AUTO.

"My goal - to reach stable 3.6GHZ overclock"

Your default clock settings *should* be 9 x 333MHz with the RAM configured to run at 667MHz. To get the CPU to 3.6GHz, all you need to do is increase the CPU frequency to 400MHz & configure the RAM to run at 800MHz. My guess is your problem relates to your RAM settings, probably the System Memory Multiplier...it should be set to 2.0 & left that way.

There are a few other settings that you'll need to set & forget:

- lock the PCIe at 100MHz
- disable CPU EIST (Speedstep)
- disable CPU Halt (CE1)
- disable CIA 2
- disable all Spread Spectrum options (if there are any)


Report •

#2
November 3, 2009 at 07:26:07
"You're not gonna be overclocking the RAM so there should be no need to change the timings. Just make sure the RAM voltage is set as per manufacturer's spec...do not use AUTO."

Gotcha. The reason though I've been using auto is that when I first built the PC I orginally had it set to 0.4+ (2.1 voltage) as per manufacture spec. Problem was I was getting frequent BSODs and when I looked into it further people were saying that it wasn't needed and could possibly fry the ram. I set it to auto from there and at 4-4-4-12 everything seemed to be fine. I'll try a +02 though and see how that works.

"Your default clock settings *should* be 9 x 333MHz with the RAM configured to run at 667MHz. To get the CPU to 3.6GHz, all you need to do is increase the CPU frequency to 400MHz & configure the RAM to run at 800MHz. My guess is your problem relates to your RAM settings, probably the System Memory Multiplier...it should be set to 2.0 & left that way."

Yep that's default. About the SMM, I do have it at two and since the ram is 6400 I should have no problem running it at 400 since that's the default speeds, correct? I've been running it at 400 for two years now before I decided to overclock and just wanted to keep the 1:1 so I guess the ram is fine?

"There are a few other settings that you'll need to set & forget:

- lock the PCIe at 100MHz
- disable CPU EIST (Speedstep)
- disable CPU Halt (CE1)
- disable CIA 2
- disable all Spread Spectrum options (if there are any)"

Already done. :)

Now a few more questions. Should I raise the NB voltage? I've heard that it should be left alone but maybe it'll help get it stable if all else fails. Also, should I be worried about these temps? And what in your opinion is the best program to monitor temps for C2Ds? I'm using speed fan and right now at idle it's saying 35C for core 0 and 37 for core 1. In your opinion is this good for and idle overclock temp (I'm now at my 3.6 overclock 1.43vcore but obviously not running orthos or anything)? Earlier though I was hitting 68C! at 30 mins in orthos but it didn't fail (more like BSOD) until almost two hours in...

Going to try messing with the ram now and running orthos again.

Also, thanks again for the help, Jam.

EDIT: I put the vcore up to 1.43 and set the ram manually to +2 (which since my board doesn't show the actual voltage I guess would be 2.0v). I upped the NB and FSB by +1V each (another thing my motherboard doesn't actually show and only gives +3 options for) then went into orthos - lastest about 2 hours and 30 mins this time before BSOD.

Side note - I added another fan to the side of my heatsink and it's blowing air into it now. I don't know if the ambient temps in my room here have changed (feels about the same) but I'm only hitting 63C max now so I don't think that's a limiting factor.

So I'm wondering where I should go from here? My vcore seems excessively high for a 3.6 overclock so I don't want to raise that more unless I have to. So what I did was raise the ram by another +1 so it's at +3 now (2.1v). I'm going to go into orthos again now and if it fails again I'm thinking maybe up the FBS and NB +1 each?

All thoughts appreciated.

Final Edit: This time at 1.4375vcore, 2.1memv, and +1 to GMHC and FSB I achieved over 6 hours running two instances in orthos. However, shortly after I BSODed....

Now for all the experts out there I could use a final bit of advice. First off, as I've said before I don't want to raise the vcore above 1.43 as it just seems too excessive for this 3.6 clock.

So what should I do? Should I forget about orthos altogether because, well, technically nothing will ever stress my system for over 6 straight hours as much as that. Or should I try raising FSB voltage a notch, or maybe think about lapping and reappling HS and paste?

My temps were about 68C before BSOD but they were that way for an hour before as well so I'm not exactly sure heat was the factor... or maybe it is?

Basically in your expert opinion(s) should I just quit while I'm ahead, or worry about getting more hours in orthos - maybe I should also forget about ram and just stress CPU as well?


Report •

#3
November 4, 2009 at 15:46:11
You might also try Real Temp. Also, have you checked the cpu temps in the bios, particularly right after the BSOD if it will allow you to ? I'm also wondering what would happen if you tried just one stick of RAM ? Are you using four 1 GB sticks of RAM ? You might also check the Gigabyte forums to see if anyone else has experienced your issues.

Report •

Related Solutions

#4
November 5, 2009 at 06:40:46
Thanks for the reply. I haven't tried just one stick but I might (who knows, maybe my ram is defective). Also, after I BSOD by the time I get it back on (takes about a minute to get into the bios) the temp was usually about 35C.

I've actually ran other stress tests since then and passed them (albeit not six hours worth). Tried a few hours of gaming as well and hadn't had any problems. I'm currently contemplating whether or not I should just forget about it and leave it as is. As I've mentioned before I've passed over six hours in two instances of orthos and I only BSOD'd after over six hours and temps of up to 68C.

Truth be told, I think it's my cooling holding me back. This HS I guess wasn't as good as advertised for OCing (even though it's huge/copper and would look like it).

I'll try the GB forums as you suggested and see where others have gotten with a similar setup to mine.

Thanks again.


Report •

#5
November 5, 2009 at 07:08:21
You still didn't say whether you checked the cpu temps in the BIOS, which is usually more accurate. "maybe my ram is defective"-you could run memtest to check that-also, some motherboards seem to have issues with 4 sticks of RAM.

Report •

#6
November 6, 2009 at 16:57:26
"You still didn't say whether you checked the cpu temps in the BIOS, which is usually more accurate"

Yes the temp I referred to was the one I checked in the bios. After hours of stressing it was usually 35C. During stressing I don't think the core temp hit 60C.

Anyways, I'm through worrying about it. I think I'm going to keep the overclock despite not passing a 12/24 hour test. I'm still going to check the mem though.

Thanks everyone for the replies and thoughts!


Report •


Ask Question