Today is e6700 day :)

darkstar782

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So, got my e6700 today, yay!!

Running it on a P5W DH, BIOS version 1407. I'm having just a few problems I was hoping for a bit of help with :)

I've upped the FSB to 334MHz (just because the the effective FSB is 1337MHz, far cooler than 1332). CPU is at 3340MHz. (334x10, ofc.)

RAM is DDR2-667 2.2v 3-3-3-12 @ stock, running at DDR2-1000 2.2v 5-5-5-20.

vCore is set to 1.4v, vFSB 1.5v, vMCH 1.85v. Northbridge has the stupid shiny copper thing that obstructs Airflow taken off and a 40mm fan stuck to it. the Raidal fan that clips onto the MOSFET part of the NB cooler at the end of the heatpipe is also attached. NB isnt going over about 43°C.

I have tried dropping the RAM to the lowest Frequency, and dropping the CPU multiplier to 6, but I still cant seem to get much more FSB out of it even at 1.85v.

Is that normal for a P5W DH? I was hoping for 400MHz FSB without too much modding, if thats unrealistic I'll just wait for nForce 680i I suppose...

For reference, at 3340MHz, core temp reports CPU temps at about 35°C under full load on both cores, so I dont think the CPU is holding me back. The system doesnt seem 100% stable.... but I havent finished changing things yet...

Also, while Clockgen previously showed my PCIe speed to be 100MHz while running the board with my D805@200MHz fsb, Clockgen is now displaying the PCIe freq as 80MHz.

The bios is set to 100, tried upping that to 115, (on the theory that a 7900GT would handle it, as this is basically what nVidia LinkBoost does) and it increased in clockgen to 92, tried upping it in the BIOS to 125 and all my SATA hard disks vanished (I assume the SATA controller hangs off a PCIe lane). Is it normal for Clockgen to go from accurate to inaccurate on the same mobo/bios?

Thanks in advance people :)
 

darkstar782

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Thanks Wusy, your advice was what I was hoping for here :p

Even with the 10x multi however, the Motherboard seems to crap out long before the CPU, this is why I was testing with the Multi @ 6x.

Still, even though it is at 3.3GHz right now, it still craps all over my old D805, so I think I'll just wait for an nForce 680i or an RD600 before getting too worried about it :)
 

darkstar782

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British Telecom had actually broken my phone line the morning of my e6700's arrival when I was doing this, so I had no internet and therefore didnt follow your guide closely, or have Core Temp or TAT anywhere on my computer, in fact I couldnt find memtest86+ anywhere either.... Rightmark CPU Clock utility was posting insanely high temps that had me worried too, but it is like 40°C higher than TAT and Core Temp anyway so now I have them I'm not fussed about it.

Still, what I did was very close to your guide anyway. I'm going to play about again today, and I'll see how far I get.

And yes, during the attempt to find the max FSB, the RAM was set to 1:1, 2.2v, timings by SPD. When it was failing still, I manually set 5-5-5 timings, then 6-6-6 timings, to no avail.
 

darkstar782

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Just had another go, started at 330 FSB, upping by 10 each time. RAM @ 1:1, 2.2v, SPD enabled. CPU@ x6 multi, 1.4v vCore.

Wasnt doing a full test each time, just booted Memtest86+ from CD and let it run to about ~20% each time, figuring this would create FSB/DRAM/Northbridge load, as that is what I was trying to test.

Wouldnt post past 370 no matter what I did, put the vMCH to 1.75v, then 1.85v, no change. Tried the DRAM at 3:2 ratio (so that it was running slower than the FSB). Tried a range of timings as manual SPD settings.

I think I just have a poor example of the 975X, as afaik it should be able to hit 400 or so without any problems.

Still, no matter. I dropped it down to 360, x10 multi, put the RAM to 1:1 and I'm done till I get an ASUS Striker, or a DFI RD600 mobo, I'm still in awe of it for how much faster than my D805 it is anyway, I'm encoding DVDs right now for no particular reason other than to be amazed at how quick it is :)