**Official ABIT IP-35 Pro Review/Overclock/Guide Thread**

[maxwedge]

Hey guys. I'm kinda thinking my issue is just that I reached the limit of my particular E6750 CPU. But wanted to see if anyone has any additional thoughts.

My FSB seems to be limited at 456MHz. My CPU does 8x456MHz just fine with 1.49 volts. I've tried lowering my multiplier to 6x, but I'm still limited at 456MHz. 458 and 460 sometimes gets me booted into Windows and a few seconds to a few minutes stable. But anything more won't even post.

I was using a Gigabyte P965 DS3 board for a while with this CPU with his same FSB limit. I then bought the IP35 Pro a couple days ago and am seeing the same limit.

With the IP35 Pro. I've tried the following voltages.

CPU Core Voltage 1.65
DDR2 2.1
CPU VTT 1.23
MCH 1.37
ICH 1.12
ICHIO 1.65

I've used really loose memory timings while testing my FSB, 5-5-5-18-42 1:1 ratio. And I already tested the memory and know it's good for quite a bit more speed.

All the CPU features are disabled as well, thermal control, limit cpuid maxval, c1e, etc.

Any thing else I can try?

Also about the heatpipe mod. I was going to do it, but after I removed the heat pipe, I saw that the PWMs were all making perfectly flat contact with the thermal pad, and the two chipsets were making good contact, so it looked like I really looked like I didn't need to mess with it. And I have Antec SpotCool fans cooling the memory and NB heatsinks.

My PWM is getting to about 50C, and system 31C, so seems okay. Do I need to mess with removing the thermal pads on the NB and PWMs heatsinks and replacing with Ceramic?

Those pwm chips on the left don't look like their making good contact but I don't believe thats the root cause for poor OC.

Edit: btw I think you need to be really lucky to get a 'great' E6750 these days. I bought one and it didn't do really well either and my E6600 just blows it away. I did a bunch of testing on my E6750 and you can see my results here>>>http://forum.abit-usa.com/showthread.php?t=129574