ground

Not enough sacrifices made before this run; CPU and board died within minutes of this run. CPU OCPs other boards right away, board has a shorted highside.

R3F works so well :D R3BE no need!

awesome offer! I’m in!

that board for sure is getting a workout Great job!

DDR3 memory frequency - 3 subs, max 1 sub per Socket

http://valid.x86.fr/ek3wlb again confirming my suspicion that either me or my mem is the limit, I’m willing to blame the mem, for now at least. Tested 4 boards (3xud3p, 1x ud3) now, 3 confirmed 725, last I only tested with a random chip which walled at 710, though I still had >0.1V range on vmch so doubt the board was at its limit

is there any trick to get these to scale with voltage? mine do 700 7-8-8 1.45V, 720 7-8-8 1.8V and less at higher volts.

really interesting stuff, just found a couple sticks of this in my collection and trying it right now.

strong 2x16!

I'd hope one of these will do it, now need good mem and a fitting CPU... And well, maybe I'll find more of these while looking for mem and CPUs.

absurd for 1:1, congrats!

given the cancellation of keephs GTX 280 comp, would it be sensible to include it in one of the stages?

I need LN2 again Got 3 Ep45-UD3Ps rev 1.0 ready now, just need a handful more chips and better D9GMH...

Coming back for more soon? Or do I and others have to try harder first?

Lots of valuable info in this thread

I recon capacitor configuration on the back should be an easy way to tell them apart, wolfdale 6M is quite distinct.

This chip... It just wants to keep flying! Keep at it Bones!

Didn't test on air, but on water I couldn't validate over 695 with the first board. Second board went straight cold and needed less vNB for 725 (1.66V instead of 1.72V), but i don't feel like my boards vary a lot in bin, given that they were both stupidly easy to get to 720+ with several CPUs (had both boards at 720+ with 3 CPUs each) (6 unbinned chips taken cold, E8400 726, 725, 705; E8500 720, 715; E8600 720) Yes! Mem limited now I'm pretty sure, as absurd as it may seem :D Yeah... I'll certainly try for more in a coming session, have a couple more things coming soon that should make even more achievable. Thanks to the other commenters ;) Appreciated!

Nice uncore :D

(see previous comment for my results, just adding a note for volts I ran) Last couple days I ran a pair of UD3Ps and a couple Wolfdales and, at least for my chips and boards on Dry Ice, these voltages varied quite a bit from yours. Maybe I was still doing something else wrong, but with my chips on Dry Ice I had the following sweet spot voltages: Vcore: 1.66V-1.74V (depending on chip) Vtt: 1.6V-1.66V (depending on chip) Vpll: 1.35V seemed just fine cold too, saw no gain going higher at all, rather lost some frequency. Maybe there are some chips that benefit from higher PLL, but mine certainly didn't. Vnb: 1.64V-1.74V (depending on both board and chip; one board was higher voltage then the other. NB had an IHS and a waterblock base filled with dry ice (no contact fluid)) Further notes from the session - I didn't run into a single <700 fsb chip with basically unbinned chips (quick test on asus x48 for 600 fsb air); this doesn't mean they don't exist, but it supports the claim that if you can't do 700 fsb the board or settings is the issue not the CPU - even if a CPU can't boot 700 fsb doesn't mean its bad; one of my 725 valid chips failed booting anything over 660 fsb into OS. - cold NB helps a lot; I only tested one of the boards with ambient NB and ran into a wall with CPUz open at 695 fsb. With cold NB, 700 worked really easily. - I really need better DDR2; these sticks barely validated 750MHz on cold, I am pretty sure given the likely higher load through the 1:1 divider they are what limited me at 725 fsb, given it was 2 unique boards and 2 unique CPUs that walled there. If possible, I'll soon retry under Ln2 with some new sticks. - also for next session: compare PCI card to no PCI card. Due to convenience I completely forgot trying a PCIe card, thus there is a decent chance it helped quite a bit with these results. - I had one chip where MCH clock skew at 50 gave another 2-3 Mhz if I remember right, not a big difference. Wrong CPU clock skew (tried 0-150 with most chips) can cost quite a lot of frequency. Keeping CPU clock skew above MCH clock skew seems mandatory. - don't bother trying asus p45 boards cold. I tried P5Q3 Deluxe and P5Q Pro, and both struggled even booting over 630 fsb with a 700+ gigabyte chip. -710 fsb boot + 725 fsb in windows valid video I'll certainly try again pretty soon, though first I gotta get some better memory and will likely airbin the CPUs on these boards now that I have a rough idea how to work them. Have a couple more boards I'm considering picking up...

Congrats! Smashing that record, about time! I'll try myself some more the next couple weeks... How many chips and boards did you end up testing?

E8600 - 720.67 http://valid.x86.fr/88xws9 E8500 - 717.52 http://valid.x86.fr/uxgv5z thanks to @wytiwx to motivate me to give this a go and the helpful thread :D

currently trying a pair of UD3Ps on Dice... so far 3/3 CPUs >715 FSB 2/2 Boards >720 FSB Given what I’m managing on unbinned boards with unbinned CPUs on dice I am starting to believe in 800... https://hwbot.org/submission/4737529_ Out of 6 random chips I've taken cold i've got now: E8400 705 E8400 710 E8500 715 E8500 720 E8600 720 E8400 725 C0 E8400 725 E8400 726 EP45-UD3P rev 1.0 - 726 confirmed EP45-UD3P rev 1.0 - 725 confirmed (did not try 726 chip in it) EP45-UD3P rev 1.0 - 710 confirmed (only tried 1 random chip in it) EP45-UD3 rev 1.0 - 725 confirmed (only tried 1 random chip in it)

IDE drive needed or is SATA not a problem?

Binned board or random sample?