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****San Diego 3700+ Steppings and Clocks- Retail and OEM****

dale1uk said:
You might be quite limited with that motherboard as it doesn't offer much increase in the vcore unless you mod the board itself. Saying that you've got a very nice clock there on stock volts - providing is 100% stable. I'd keep slowly upping the fsb till it becomes unstable and then up the vcore a little till its stable again, and so on alternating between the two. I'm not to sure what volts that board will allow you to put through the cpu but I've got 1.55v through mine to get it 100% stable at 2.85gig, just keep an eye on temps as the more volts the hotter things will get.
Click to expand...

What temps are you getting under load?
 
During my 20+ hour prime run the max temp my cpu got was 42'c. Thats on air as well using a Gigabyte G-power Pro on its lowest speed. Idle temps are around 28/29'c. Fortunatly for me the extra volts never made that much of an impact on my temps.
 
I ran prime last night, stable and no errors. I think ill up it a little and see if I can squeeze a bit more. my artic freezer pro seems to be doing a fine job
 
k3v said:
I ran prime last night, stable and no errors. I think ill up it a little and see if I can squeeze a bit more. my artic freezer pro seems to be doing a fine job
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Good keep us up to date with what clock speeds/Temps your getting
 
Has anyone bought a OEM 3700+ from ocuk lately ?? and how good a clocker was it ?? i am looking to buy a 3700+ or get a opteron 146 and was thinking i should spend abit more and get the 146 .
 
Does anyone have any idea how this chip would perform?

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It is an E4 stepping chip but is fairly new... I am really after an E6 3700+ if I can get my mitts on one.
 
roadie said:
It is an E4 stepping chip but is fairly new... I am really after an E6 3700+ if I can get my mitts on one.
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Why, I think I have a OEM E6 3700+ and it is a failed Dual Core that only does 2750Mhz and needs 1.525V to do that.

I think the retail E4 3700+ CPU's clock better.
 
I didn't even notice this thread - had been posting on the Overclocking forum.
Well I have played about with my 3700+, no idea what stepping it is, got it from OCUK back in December it was a retial one not OEM. Have just tried overclocking it.

I cant get into windows if I push the CPU Freq beyond 260 no matter what I change. This is on an Abit AN8 SLI motherboard.

So I have it back at 2863 with 1.425 volts running through CPU on a 4x HT Multi and memory is now running at 204 so DDR 408 as its only designed to run at DDR400 with timmings at 1T 2-3-3-6 and seems stable enough. I'll give it a good run through with Prime over night and try a few games on it tomorrow and see how it goes.

Temps are still maxing out at cpu 47, sys 34 and pwm 47 but I will need to keep any eye on these as I am sure they will go up when I have my X1900XT running hard as well.
My CPU-Z screen.
 
You may of just found the limit of your chip. Mine is prime stable up to 259fsb anything over that and I can boot into windows but its not stable. I presume you have tried dropping the HT multi down to 3x, upped the voltage and put a divider on your memory??? For my setup even at 259 I have you run a 3x HT multi to get it prime stable, also I need to put 1.55v through the cpu and my memory, even on a 166 divider, needed the timmings slackened a little to those in sig.
My advice, if you havn't tried this already, to see if you really have found your chips limit is put a 3x ht multi on, put a 166/133 divider on your ram and slacken timmings (to definitly rule out the ram from holding you back) and up your volts to the max your happy to put through it and then see if it will go any further.
 
2863Mhz @ 1.425V is great, I wish mine did that :(

I think that A64 chips don't really respond well to a lot of volts unless they are vapochilled
 
Hi

thanks for that info.

I did try increasing volts to the CPU - went up to 1.500 but still couldnt get into windows. I dropped the HT multi to 3x and put memory down to 266 divider, it was already on 333 to get this far.

With memory on 266 divider I managed to get into windows and run Prime 95 so I was running at 3029 but my memory frequenct had dropped to 178 so does that not mean that the system is running slower over all than when I have it set to 260 CPU frequency giving me 2863 and memory running at 204?
 
Getting it at 3 GHz and stable in Prime95 would be quite an achievement so even with the memory at 178 for now it's probably worth testing to see if it is stable. I suspect there are options for getting the memory back up to DDR400 for example lowering the CPU multiplier and upping the HTT so you can make better use of the memory dividers.

EDIT: Nah on further thought it would still be CPU speed/X for the memory so another option would be using one of the inbetween memory dividers if your board supports.
 
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Well I had a go at getting it stable at 3GHz but cant-just get BSOD's every where when I try to get into windows. The highest stable settings I can use are 2863 as shown here

But I have dropped down to 2809 as I feel the settings I am using there aren't as challenging to it.

So at 2809 I have the following settings:-
HT Multi 4x
Memory Divider 333
CPU Voltage Default 1.40
CPU Freq 255
Mem Freq 200
More than happy with thoose settings :D :D
 
Yeah, that's a very nice overclock and temps will be good 'cos of only having to use 1.4v! Great result. :D
 
With A64 systems CPU speed is most important, first decide the max stable CPU overclock and then adjust the memory keeping the CPU speed at the max.

Memoryspeed isn't that important with A64 systems and the extra CPU speed gives far better speed than slightly slower memory.
 
coneypark said:
Well I had a go at getting it stable at 3GHz but cant-just get BSOD's every where when I try to get into windows. The highest stable settings I can use are 2863 as shown here

But I have dropped down to 2809 as I feel the settings I am using there aren't as challenging to it.

So at 2809 I have the following settings:-
HT Multi 4x
Memory Divider 333
CPU Voltage Default 1.40
CPU Freq 255
Mem Freq 200
More than happy with thoose settings :D :D
Click to expand...
I would be made up if I could get an overclock like that on default volts. I was running my 3500 at 1.57v 2600hzs 289x9 for twelve months and it's now crapped out, (think it's the memory controller) cause I can no longer even get a 200 htz over clock no matter what I do. So I now think it's important to keep them voltages down!!
 
paulbaker said:
OEM or retail ?
Click to expand...

oem but not brought form OCUK.

I'm actually having a bit of a problem as when I originally did a 10 hour prime back in april it was fine for 10 hours without any errors. Yet I thought i'd run it again after it crashed 3 times in a row when using some encoding software and it failed prime after 1 minute:confused:
I can't think what would bring about the sudden change as i've not changed anything in my PC :(
 
May be time to try uping the voltages, I only consider it stable after 24hrs min now after having loads of problems with anything less, I've had failures after 13hrs 15hrs and 18hrs!!!
 
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