Abit IP35 Pro XE and E8400

crazylegs

Senior member
Sep 30, 2005
779
0
71
Hey guys have just installed these parts in my system that now contains:

E8400 (E0 stepping)
Abit IP 35 Pro XE (flashed to lates v11 BIOS - still got uGuru temp 'bug' though...)
2x2gb OCZ Reaper DDR1066
Corsair 520HX PSU
Antec 900
Xigmatek HDT-S1283
Vista x64

Only had this system up and running for a day or so all at stock settings.

I plan to lap the Xigmatek HDT-S1283 (there are some small but noticeable grooves between the heat pipes and rest of base) and mayb the CPU aswell... but not decided on that yet :)

Anyway last night i just decided to see how well it would OC. Every voltage is set to the minimum allowed in BIOS but i upped the FSB to 400, giving me 400x9@3.6ghz. This booted into vista, temps (using core temp and real temp) exactly the same as stock 36 idle, 51 load.

Then i thought i'd see if i could hit 4.00ghz, so bumped fsb upto 445x9=4.0ghz, every voltage left at minimum except vcore which i bumped up from 1.25 -> 1.26 'for luck' (probably no need to do this but nevermind). Started prime95... to my surprise it didnt error within about 10mins... or 30mins... by now it was 12.30am time for bed, this morning prime95 is still running temps @ 50/52 on each core, after 8+ hrs prime stable. Am at work now but left prime running, hopefully its still running when i get home.

Cant believe how easily and without hardly any voltage hikes this CPU is running over 4.00ghz (my old C0 stepping E8200 struggled with 3.00ghz!).

Over the weekend i'll see just how far i can go (as much for curiosities sake and fun than anything) but if i can do 4.00ghz with no extra volts and minimal heat then that will do me.

The one 'problem' is how uGuru bugs totally with the temp report :S (i.e. 100oC at stock, Speedfan reports these same temps.) while CoreTemp + RealTemp produce more believeable temps.

Does anyone know a fix for this? Seeing as i have the latest BIOS i'm at a loss...


(To be updated with further OC results, temps, benches + pics of lapped HSF)
 

geno

Lifer
Dec 26, 1999
25,074
4
0
Be careful if you're going to lap the S1283. The section of copper heatpipe which makes contact with the CPU is VERY thin and lapping can weaken it to the point it will crack. If you must lap it, do a light lap and try not to push the limits too much.
 

crazylegs

Senior member
Sep 30, 2005
779
0
71
ahh ok - thanks for the heads up, i only need a very thin lap 0.5-1mm to remove the grooves between heatpipes and rest of base.

mini update:

BIOS flashed to a 'tweaked' version of 11 (by Abit Netherlands team or something) has fixed the bugged uGuru temps. OC is still stable 4.01Ghz @446x9.