**Official e8400/e8500 Retail OC Thread

[HDCHOPPER]

I read on another forum that at the exact same FSB and multiplier that, an E8500 can outperform an E8600 because the E8600 has more on chip L2 cache latency. Does anyone have these two processors available to do some testing on the same motherboard at the same FSB and multi with the same memory / OS / etc? Not much use looking for an E0 if the C0 performs about the same at a lower MHz.

If you see a difference in gaming or other benchmarks then try running Membench in ScienceMark 2.0 or any program that shows L1 / L2 cache latency to see if Intel has increased the latency which could negatively effect overall performance.

RealTemp 2.76 is available which gives you the option to see the Distance to TjMax in the System Tray.

http://www.fileden.com/files/2008/3/...alTempBeta.zip

thanks for the science mark2.0 unclewebb !! yet another toy to play with

[daos]

i doubt the cache is slower. If anything its faster but I doubt that as well. The difference lies in the yeilds. if everything else is kept constant than the only difference would be yeilds and I would put my money on the 8600.

[Copenhagen69]

hmmm , realtemp beta 2.76 raised my temps 5-6C is this right? or just a flaw in the beta?

[Alex-Ro]

i doubt the cache is slower. If anything its faster but I doubt that as well. The difference lies in the yeilds. if everything else is kept constant than the only difference would be yeilds and I would put my money on the 8600.

Yeap,i agree,there could not be any difference

[Jeager]

E8400 Q818A027


This is with a vDrop mod (p5k & 0.04v ftl)

[Extelleron]

Are most people buying E8400 CPUs getting an E0 revision by now? I have a C0 E8400 that sucks at oc'ing and Fry's has a special right now.... thinking of getting another, but only if I can be (almost) guaranteed to get E0.

[anzial]

There are no guarantees, but Fry's got pretty nice return policy.

[cincyrob]

my local microcenter has 8 of the SLA9P E0 stepping and the reg slapl C0 so unkess you can look and pick which one it is a toss up for what ya get.

oh got this bad boy up to 4.0ghz now. im figureing out this mobo.. taken some time though

[jaredpace]

fry's website has e8400 online for 139. Whoa - cheap.

[Retro]

Are most people buying E8400 CPUs getting an E0 revision by now? I have a C0 E8400 that sucks at oc'ing and Fry's has a special right now.... thinking of getting another, but only if I can be (almost) guaranteed to get E0.

You want an EO guaranteed? Here you go:

http://www.tankguys.com/product_info...oducts_id=1828

[HDCHOPPER]

are E8400 EO comming in a smaller box too????

[xMrBunglex]

are you guys all disregarding your CPU (i'm guessing it's T-Junction) temp on your Wolfdales? i'm sure this has been answered a million times, but a google search turned up a bunch of nubs on other forums guessing at the correct answer.

i ask because my CPU temp is regularly 10° higher than my individual core temps. this screenshot is from Everest Ultimate 4.60.1500 final.

[HDCHOPPER]

everest has never read any board eye have had correctly & the few times it did work the numbers were mixed up

[xMrBunglex]

Everest reads my individual core temps the same as CoreTemp. it's just the "CPU" temp that bothers me. i ran Prime the other day while it was very hot (90°F outside and all my windows open) and my CPU temp hit 70°C. i'm assuming that is my T-Junction, which is rated at 105°. the individual core temps are the ones i'm guessing are safe up to 72°. the cores stayed below 60°C.

[Shadowtester]

Just got a E8400 from NewEgg today that I ordered 9/3 G0 SLB9J

[doompc]

@HDCHOPPER, yep:

[HDCHOPPER]

oo man cool ! thats gonna make it a lot eazer at fry's now

[cincyrob]

yea the HSF in there is as big as a golf ball...lol not that we use them fans..lol
well guys i did it. got my E8400 co stepping stable at 4.05ghz.. took some doing but i finally got it. i was challenged to get it to 4.3ghz i dont think it will do it. but im gonna go up a bit at a time and maybe hit 4.2ghz.here is a shot of intelburntest..man i love that program



checkout cpu-z validation in my sig.





yup im a happy boy...lol suprisingly my temps have only gone up a couple degrees with the 4.0 OC...at idle that is

[xMrBunglex]

i think my CPU would melt if i ran it at 1.39 vCore. i'm able to run at 3.9 GHz on just 1.30 vCore (1.27/1.25 actual). overclocking further requires a lot of extra voltage for mine. even at just 3.9 GHz with a decent air cooler, Linpack pushes my CPU to the very limit of what it can handle, heat-wise.

[s1Lv3r]

here is my e8500 533x7.5 1.29v

[Chri$ch]

E8500 C0 Q816A484 (VID 1.1500)

[zlojack]

Chri$ch where do you get all these awesome chips?

[Chri$ch]

i order them online at different stores, it is only luck

[zlojack]

i order them online at different stores, it is only luck

I need some of that luck! Your E8600 is a gem and that E8500 looks pretty sweet as well!

[cincyrob]

Chri$ch where do you get all these awesome chips?

i second that question....??????

is there anything other than bumping up the vcore to help get it stable????? i hear alot of you guys talk about the CPU PLL..... what does that do?should i mess with mine? i have my vcore in bios set for 1.44325v to get 1.36-1.39v
i think i can get more out of this chip or even better lower volts if i totally knew what to adjust...lol

xMrBunglex

i agree wit hyou on the temp with intelburntest. it does push up the heat when testing...i will do 5-20 test on it then if it passes that then i will do the normal testing we all use. if it wont pass intelburntest then i no it wont pass the others.