Haha, funny thing is that we made same clocks the same day. As for screenshot, I was overclocking it with setfsb to the desired frequency, printscreen it, downclock and save it with paint.

Yeah, I should have done the same.  Every other screen I took was without all the tabs open, so they are probably less valid. Be easy enough to do again.

It's was almost a waste of a session except for this. I was hoping to do some superpi, as the board and chip clock really easily together.

The fail happened when for 32m, there is just no stability from the memory. Pretty much loop 4-6 every time, regardless of strap, dimm count, IC Type, voltages or timings  Not sure what I can do about that.

Had the same issue yesterday, I can run either mem at given timings/frequency or cpu at given fsb - but if combined won't do more than 11 loops. Will try to find the solution in next two days - I remember proper dram skews helped me before.

Some boards just seem to hate superpi, when I was testing my P5E3 Premium last month with NB on SS I could validate 670+ easy, run 1M at 660 with decent memory but couldn't manage 32M above ~615 no matter what I tried. Memory tested at 700ish, 900ish and >1030 without issues, I kinda think its just me...

Welcome to the REX tweaking club. Anyone else have the issue where you have a profile from one session, and then the next day it fails at the same FSB/DRAM ratio?

Yes and no. Assuming the board is alive in the first place (which is a very big IF), I take 10MHz variation from session to session as acceptable. Which can also be down to variation in NB cooling (due to insulation) or weather on Jupiter. I've noticed that some of these boards are extremely PSU-sensitive. Also, if you shut the PSU off, then on first cold boot (or run up until the first major crash) you tend to get slightly better clocks.

From where I am sitting, I am actually baffled as to how people get these boards to do 600+ 32M with Wolfdale on non-LN2 cooling. It was never possible here in a reliable way, even with CPU under single stage, so I even stopped trying and am using a Conroe to pretest boards on single stage. Yet, the same Wolfdale setups can easily do 640-650 5:8 with CPU on LN2 all day long.

Nice KaRtA! nbv?

Had to be in the right zone. Between 1.6 and 1.65v on this bios.

Older bios I could push 1.8v with cold NB no issues, but the new one with cold is troublesome with higher voltages.

Which Bios version do you use? How much voltage you can give to the NB varies greatly from board to board. My good Rex scales up to a voltage of 1.74v on the NB. Another one of my REXs, however, at a voltage greater than 1.65v does not boot anymore. Do you know the batch number of your NB? But 680er FSB with only 1.65v is really good!

On some boards max voltage also depends on the strap and mem divider. Few days ago I bought a board that won't go above 1.40V on strap 266 with 1:2 (and hence maxes out at 900-ish IMC) while 1.60 is fine with 333 and 1:2. Go figure.

You should gather all of this info in a mini guide. 
a lot of information was lost by those who benched in the past and didn’t pass on their secrets. This is one of the reasons people don’t touch older platforms, is impossible to get all that knowledge by yourself.

8 hours ago, suzuki said:

You should gather all of this info in a mini guide. 
a lot of information was lost by those who benched in the past and didn’t pass on their secrets. This is one of the reasons people don’t touch older platforms, is impossible to get all that knowledge by yourself.

You can try and learn it by youself, but Asus designed the REX to die before that happens. ?

Edit: at this point I've given up and moved to EP45T.