So why does coretemp and realtemp temp readings differ so much with the e8400s ? Is it wrong to trust realtemp over coretemp ?
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So why does coretemp and realtemp temp readings differ so much with the e8400s ? Is it wrong to trust realtemp over coretemp ?
wow too bad my chip cant do 4.0 @ 1.25V.... or could I... :rolleyes:Quote:
Originally Posted by Hughyhunter
At 3.6 i could do that temp.. at 4.0 @ 1.3625 I get 57 at load.. :( Using TRUE
yesh, it is on water!Quote:
Originally Posted by realrena
RealTemp assumes a Tj max of 95C (based on the program writer's testing results) compared to CoreTemp and other programs that assume 105C. This means that RealTemp will report 10C lower temps.Quote:
Originally Posted by Darkatom
RealTemp also attempts to cater for the non-linear increase of temps and 'sticking' sensors at lower temps.
It's difficult to advise which to trust as Intel will not release Tj max values for it's processors, so all programs are having to make assumptions. I can only suggest you read the thread and decide for yourself. Also bear in mind that (I believe) Intel have stated that the DTS sensors are primarily designed to control thermal shutdown and are not designed to reliably report lower temps.
Personally, I don't really care what the absolute temp of my CPU is as long my system is stable and the temps are within generally accepted tolerances. I use CoreTemp to check as it reports higher temps, and as long as CoreTemp reports temps below 70C and my system is stable, I'm happy. As it is, my load temps are 53C (ambient 21C). I'm currently running at 4GHz (8x500) 18+ hours Prime stable, but currently have no screen shot. I'll try and remember to take one next time.
I'm having trouble with higher clock speeds. This thing needs quite much more for higher speeds.Quote:
Originally Posted by mrcape
I'm pretty newbie what comes to overclocking. I had opteron 144 before @ 2.7GHz all stock voltages.
Now this is my first WC rig and I don't even get temperature readings out of e8400. It's stuck on 30°C but in reality it should not be very hot. Now to the question.
Do I really have the worst e8400 that anyone could get, or am I doing something wrong? Becourse I really can't OC this processor much with stock voltages (on all, chipset etc). I got like 3.2GHz, whopping 200MHz rise.
With ~1.32V on bios I got 3.69GHz MAX, which was not even 24/7 stable. Just enough to run superpi 1M. I have corsair memory, TWIN2x2048-6400 G. WTF! I just noticed that the shop where I ordered my parts messed up with my memory. I ordered TWIN2x2048-6400PRO, and paid for them and I apparently got some G (what ever it means) memorys and not PROs. Now I'am glad I started writing this post :)
But still I have only ran the memory with divider, about 800MHz. So it should not be the limiting factor of OC. Should I rise voltages of chipset or something else instead of just adding more V to cpu?
Sorry about my bad english, hope you guys understand even something of what I just wrote :)
@natech
It would help if you would also post your specs.
@natech
These processors are known to have 'sticky' DTS sensors and are not really designed to read low temps. I personally have 1 core stuck reading 42C until the temp rises above that value. Nothing to worry about really but I understand it can be annoying.
As the previous poster stated, your specs would be useful in order for us to be of further assistance.
Here is my final 24/7 OC. I think tis will be good to get me through even the hot summer months. RAM is on the 2.00A strap (1:1 with CPU) using 2.05v
System specs:
E8400@4.0ghz (445*9)...2x2gb G Skill DDR2-1000 @ 890mhz...Gigabyte X38-DQ6...Corsair HX620 PSU...MSI HD2600XT 512 Silent ...X Fi Platinum...2x500gb WD RAID0 - 2x320gb Maxtor RAID0 ...Zalman CNPS9700...Ultra Aluminus (black)...Hanns G 19" LCD 1440x900...Logitech Z5300e speaker
http://img378.imageshack.us/img378/8900/445x9xq1.jpg
And this one performs exactly the same as the previous one. Even the core temps are stuck at 45C, just like the first one. But this is a very very good batch. The previous one I had sold to someone on BE that is running some amazing scores on Dice or LN2 (forget which).
4.3GHz at 1.344vcore under load with no effort as far as tweaking goes.
Quote:
Originally Posted by fireice2
Added info to my signature.
Also using latest 17 beta bios with IP35-PRO.
how much vcore for 4Ghz stable?Quote:
Originally Posted by sofarfrome
Don't know. Didn't try. My goal was 4.3 at <1.4vcore and I achieved it. I will probably play around with 4.4GHz next.Quote:
Originally Posted by stephen23
pretty great chips. I need around 1.36v to be OCCT stable at 4.2ghz. :down:
Fireice, that's not so bad man. From what I've seen yours is probably still in the 85th percentile.
Yeah, thats not bad.. it seems the early batchs are the best overclockers with low volts. I'm running 4ghz with 1.248v on load, and haven't even tried seeing if its stable with even lower voltage, yet.
I need 1.38v for 4.05ghz. You guys that are stable with low voltage... that must be nice!
I have a Q743A748 and it does 4Ghz (500x8) @ 1.24v DMM tested. Just put it under a modest WC loop of Swifty GTX/MCR 220/DDC-2/DD FC GTS so I might try higher.Quote:
Originally Posted by stephen23
Havent seen many Q743's around, but they all have been pretty good at low volts.
I'm thinking about going higher as well :up:
I need new ram for benching, my ram craps out at anything above 4.4ghz :rofl:. With the 3dmark in my sig, i was giving the cpu far more volts than it needed. I can make it into windows at 4.5ghz with 1.4volts (still overvolting i think, didn't try less) but my ram was extremely unstable.
great one :up:Quote:
Originally Posted by camouflage
where did you get it ?
testing a Q807A067 with a bit bad waffer (8A1642) with air (TRUE),25C room temp and closed case..
e8400 Q750A196 1.1125vid
for 4050(450x9) need 1.368v bad luck
http://www.imageshack.gr/files/1tp2x...e5t3_thumb.jpg
nice...my first q743a had a 0.875vid...looks like the Q751A is a winnerQuote:
Originally Posted by camouflage
Very nice score. I managed 197** at 4.5ghz (I needed 1.6v though to even get into windows) with 2 8800GT overclocked. I have Vista... You?Quote:
Originally Posted by ThatGuy16
This isnt bad luck... this is the norm. I need 1.38 for 450mhz. Anything lower than what you are talking is good luck. Anything above 1.4 is bad luck. :up:Quote:
Originally Posted by Strategos