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

I wonder if this voltage related degradation is just a duff chip and causing a lot of scare mongering. I can have my E8500 at 4.5 with 1.5v dropping to 1.46v under prime with temps going upto 80c if coretemp is to be belived with no degredation that I can detect at the moment, but due to all the "hype" I've been playing it safe and keeping VC under 1.4v untill what is lots of speculation at the moment becomes fact.
 
Althulas said:
I wonder if this voltage related degradation is just a duff chip and causing a lot of scare mongering. I can have my E8500 at 4.5 with 1.5v dropping to 1.46v under prime with temps going upto 80c if coretemp is to be belived with no degredation that I can detect at the moment, but due to all the "hype" I've been playing it safe and keeping VC under 1.4v untill what is lots of speculation at the moment becomes fact.
Click to expand...

To be honest, i think the "voltage related degradation" is for the large part, just bad clocking. If you look at some of the listed settings that peeps have been using, not just here but at XS and other forums. You will see that the vast mojority of dead or "iffy" cpu's have been subjected to very high SB PLL voltage. If there is one single thing guarenteed to kill a 45nm cpu, it is a high PLL voltage. It is well documented, and also applies to 65nm cpu's as well. Anything above 1.55v on the PLL will drasticly reduce the life, or even kill the cpu. For the most part the only need for uping the PLL is to run very a high fsb when at 1:1, which off course is stupid because you can drop to a divider without the need to up the PLL.

Anyway, here is my latest effort. I had some Ballistix 8500 that died on me, so have now got some OCZ 9600 Flex. Which of course means redoing my clock. This is early days yet, but i do expect it to run the distance without any probs. I am using the 2008/02/14 Beta bios, which for some reason is showing my Vcore at 1.552, in fact it is set in the bios to 1.4965v. Must be the first case of "reverse Vdroop" :D

 
I had another go tonight. More jiggawatts worked! :D

e8200_cpuz.jpg
 
been trying to drop the volts on my e8400 so i started back by setting 1.2 in the bios for 4Ghz.... wasnt having any of it :P so i tried going up step by step, did about 6 steps but none would boot to windows :( so gave the rest of the 1.2xxxx a miss and went to 1.3 in bios. hoorah it booted to windows.. but soon failed and as been writting this ive tried 1.35, which cpuz reads as 1.32.. was running orthos but failed this second after 8 mins :( damm a bit more volts needed looks like its probably goint ot be around the 1.4 mark so i might just be wasting my time :p might work back down instead from 1.4 :p

*update*
been running over 9 hours on 1.392 VCore, only a small drop i know but its a start to saving the planet :D and more importantly making my chip last longer and saving money on bills :p
*update*
1.392 stable 12hours :D woohoo right now im gunna go for about 1.35 and see what happens... god this take me back to gcse and doing trial and error analysis, pick a high, pick a low, go the middle, elimate one range, pick new middle... etc etc :p gunna take a few days i think
 
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Still undecided if I should go for the 8400 - are they going to fix the temp sensor? Is there a "newer" batch/stepping coming out or is it just fud?
 
Hesky82 said:
If you’re going to wait around for a month or so you might as well just save up for one of those new quads.
Click to expand...

If you have the software to make use of them. ;)

They may not be good clockers though due to the low multipliers. A motherboard that does 500mhz with a dual may not be able to reach the same with a quad. They are also more expensive than the Wolfdales (forget the prices on here as it's not a true reflection of the actual price).

Personally i am going to wait a month or so for the new batch to come out before i buy another one.
 
umm just wondering about stability checking, as im droping the volts (currently testing cpuz 1.36-1.352, varies slightly underload) but with regards to being superpi stable, some times it run through 1M fine... but sometimes superpi just crashes after 1 iteration, ie. error comes up from windows saying it has stopped responding and needs to close.
now is that a stability fault or is it just windows fooling about?
 
As per my thread in the Motherboards section. I have a Gigabyte GA-965P-DS3 Rev 1.0 running on air, Zalman 9500;
E8400 @ 4.0Ghz (1.2650v) - See sig for CPUZ
E8400 @ 3.6Ghz (1.2250v)
Will be trying higher volts and Ghz soon, but quite happy so far.
 
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yea those are some low volts ya have there :) mine failed to boot to windows with 1.32 vcore reading in bios (1.35 inputted) keep up the good work :D and are you able to answer my question about pi stability? i mean sure orthros is more stressful so if its orthros stable it shoudl be superpi stable yea? and im sure that superpi crashing is something to do with windows as it crashed now and then on stocks.
latest 12hr stable volts :) peak was 56oC
 
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Geting crazy readings here. Bough two E8200s today. Booted up at 500fsb with a 7 multiplier for 3.5gig. I put 1.45 in the bios but cpu-z is reading 1.37v! Gonna try for 4gig @ 400fsb.

Coretemp also gives different temp readings compared to HW monitor. I'd rather rely on the coretemp one as its cooler :D

Edit now @ 4gig on air 11.5sec superpi!
 
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