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***The Official Wolfdale 8200/8400/8500 Overclocking Thread ***

BKUK said:
Whats the max voltage you should put through these chips? 1.5V?
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This is an interesting point. Apparently Intel spec 1.45v as max vcore for the 45nm process chips. There are reports elsewhere of people wrecking their CPUs with what appear to be relatively low voltages (1.4v - 1.45v), which, for QX9650 owners, is something to cry about. Cooling method seems to be irrelevant.

Think about your vcore increase as a percentage of the VID. I'd say 25% is as far as you'd want to go for any length of time, and maybe not even that. For a chip with a VID of 1.1v, that's 1.375v vcore. Think about it. :)
 
Hesky82 said:
Anyone running an E8500 under a humble watercooling setup yet??
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I have been got 4ghz out of it with 1.3v small tfts stable for 1 1/2 hours,but my bios is a beta on my board.

I did manage to boot into windows @ 4.5ghz 1.45v but turned it off as i thought it was to much volts for the cpu.
 
siege2 said:
Hi Kerth Gersen

yes its ddr2 will only adjusting the memory divider to 5:4 make it stable
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The question was if your RAM runs at 800Mhz or is it faster RAM like 1066.

Put it this way. To achieve a 4Ghz overclock on an E8500, you will likely need a FSB of 421 (4000/9.5)

If your RAM is DDR2 - PC2-5300 - which runs at 667Mhz (ie an FSB of 333). I would almost guarantee that is the source of your clock limit.

If your RAM is DDR2 - PC2-6400 - which runs at 800Mhz (ie an FSB of 400). Most decent RAM will overclock to 421, but you may need to manually change your memory divider to achieve it.

If your RAM is DDR2 - PC2-8500 - which runs at 1066Mhz (ie an FSB of 533). This is not the source of your problem.

I am sure there are other solutions, but this may be worth a try.
 
Here is my E8500 @ 4.5ghz not stable needs more tweaks.

http://valid.x86-secret.com:80/show_oc.php?id=304875

E850045GHZ.jpg


:D
 
Banny said:
posters comments about these chips being great overclockers seems abit over the top to me. surley to be labeled with that, you would be thinking they could get to at least 1.5ghz over stock with ease on low volts and not get as hot as they are being reported by forum members.
Take the 6300/6400 and the 2160/80s now they are getting much better overclocks from stock speeds with nice temps and these are 65nm.
my 6300 runs 3430 all day long and if I had a bigger case and some better cooling on my board it would do 3500.
this is a 1.6ghz overclock anyway.
I am hoping there is a refresh as I would like to see these sort of speed increase's.
I know some are getting there, but not as many as I hoped, dissapointed really as I want to get one, but to make it worth it to me I would want to be seeing 4.5ghz.
Maybee thats greedy but thats bang for buck to me.
Ready to get hammered for my comments now, but thats the way I see it with these new Wolfdales.
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This a valid point.

3ghz to 4.2ghz is less of an overclocking margin than my humble 6400.

I clocked this from 2.13ghz to 3.8ghz 13 hrs primestable.

Ok it is not as fast ,but the 45nm Wolfdales I was hoping were going to be in the 4.5ghz area 24/7.

The trend seems that this is not the case.
 
My wolf (8500) has just arrived so hopefully i should have some results for you in a day or two. It's going under custom water so it should hopefully go well. Off to play now. :D:D:D
 
I think the 6mb level 2 cache really doesn't help the overclock, the older chips had a lot less cache which helped the chips stay cooler and get great overclcoks. Wolfdales are the quickest though clock for clock.
 
well I have got Coretemp to work on my vista 64 bit by pressing the F8 then select disable driver signature enfocrement, just before windows boots up. here is the screen dump for it;
main.php
 
Hotter than my q6600 @ 4ghz with half the cores.

I cant see 4.5Ghz being possible, as much as I am dying to try it, I think i may return my 8500.
 
Quick update. Currently priming at 4ghz (9.5x422). Straight in with no voltage increases to the cpu or mobo. In fact the only thing i have done is raise the fsb. Looking good so far. Think i have poor contact with my block though as even at stock idle it's running at 36 degrees. It has'nt risen when idling at 4ghz though. Still at 36 degrees. Currently sitting at 55 degrees both cores while priming. Probably going to get fed up with this speed and go for something higher after dinner. Chuffed to bit's i have'nt had to increase any voltages so far.

Compared to my quad this thing idles hotter but like i said it could be poor conatct. I will try re-seating later. At load it's a whole different story though. It's miles cooler than my quad at 3.8ghz. A lot less voltage on the cpu and mobo too. So far it's looking promising.
 
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Demon[KcsF];10993471 said:
12hr4GhzOrthosStable.jpg


12hrs Orthos Stable at 4Ghz

Only issue is it still crashes when I play CSS, gonna give it a blast with Crysis and see what happens.

Demon.
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That’s random, I’m starting to see a lot of wolfdale systems that are Orthos/Prime stable but as soon as a 3d bench mark or game is run the system becomes unstable.
A few guys on XS have noticed with very high fsb their systems collapse and simply can’t get decent scores with their high end cards, just end up not being game stable.
Maybe a characteristic of the motherboard reaching its limit?
 
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