Patch

Virgin LN2 run tonight.

Subambient overclocking is incredibly addicting and gobs of fun.

Biostar tPower i45
E8400 C0
2X1 Patriot Viper DDR2 PC9600 5-5-5-12

I learned a ton tonight. LN2 is both harder and easier than DICE. LN2 requires much more attention for maintenance of temps. But even though it gets a lot colder, it's less time consuming recovering from cold boot problems. Trying to fish out rocks and dump acetone is much more difficult than waiting a bit for LN2 to boil off.

As I describe things, somebody please correct my terminology if it's wrong.

With this system:

1) Wouldn't cold boot into BIOS colder than -68ish.
2) Wouldn't cold boot into Windows colder than -48ish.
3) It will boot into both much colder (even -130) if I restarted quick enough after a BSOD. But if I waited too long to restart, or fiddled around in BIOS, then I had cold boot problems and had to wait until it warmed up to get back in.
4) No cold bug even down to -140. I'd BSOD there, but if I restarted quick enough it would reboot right back into windows.

I didn't get much farther than I did with DICE, but it was more stable, and I did finally break the 5.0 Ghz barrier with a chip.

Enough talking. Here's some pics.






I'm even getting some exercise when waiting for rig to warm back up to boot levels.



http://valid.canardpc.com/show_oc.php?id=588390

Now that I'm spending so much time in the garage, I'm considering finishing the walls and painting....

__________________
Stock speeds make hardware sad.

5.27 Ghz i7 920 C0 on LN2......5.31 Ghz i7 975 on DICE......6.36 Ghz E8600 on LN2
7.01 Ghz Pentium 4 631 on LN2......7.96 Ghz Celeron 352 on LN2......7.02 Ghz Celeron 360 on LN2

wuttz

gratz on popping the cherry patch! not a bad first run at all.
did you get max temps with the duniek pot? (-196ish)
thanks for the info, +rep!!!

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Mason92

Damn thats cold!!!!!!!!!!! +1

Patch

Thanks guys.

I don't know how cold it will go yet. I didn't try to get any colder than 145ish. I could get my chip to 5 ghz at -110, but it wouldn't go any higher even at -145. I never loaded the pot more than about 30-40% in case I had to let it boil off to deal with cold boot problems.

I need to get a nice E8600 and a NB pot to really see what this board can do.

__________________
Stock speeds make hardware sad.

5.27 Ghz i7 920 C0 on LN2......5.31 Ghz i7 975 on DICE......6.36 Ghz E8600 on LN2
7.01 Ghz Pentium 4 631 on LN2......7.96 Ghz Celeron 352 on LN2......7.02 Ghz Celeron 360 on LN2

Jayrock

Nice work!

And what the heck is that funnel made of?

__________________
I ROCK ICE
e2200 @ 4.537

bartx

Nice, but you should break rather 5.6 -5.8GHz than 5.0. Maybe you have a poor chip, rest of your bench rig is very good. Voltage seems to be too small, give this baby 1.7 - 1.8v. On air I hit one time 4.8GHz on 1.55v or something like that. Keep pushing

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E6420 @ 4629.82MHz

Celeron D347 @ 7360.14MHz

Ballistix PC8500 @ 1400MHz

CPU pots
http://www.overclock.net/dry-ice-liq...ew-series.html

Bartmasta

if u want 6.5 GHz on SPI go 2V

__________________
Add me on Steam and xFire: Bartmasta
View all my benchmarks on hwbot

eclipseaudio4

Very nice! Now crank up those volts

__________________

The Official MSI 790FX-GD70 Owners Thread

AMD 790FX+SLI

Blue Moon Rising Work log Easy 4.2
5000+ X2 @ 3.6 on Asus M2N32 workstation Pro

Patch

Thanks.

Paper plate.

Yeah, this chip has been underwhelming me at every turn. Air, water, DICE, LN2, and 2 different mobos.

I've tried to give the darn thing up to 1.9 v. Biggest problem is that I can very rarely get it to even post with more than 1.5 v, even with only a moderate overclock. I'm probably overlooking some setting or voltage cocktail, but this board/chip gives me immediate overclock failures with high voltages. I'll try to go hunting to see if there's some power management setting I'm overlooking. I'm happy to fry it, but it won't seem to let me.

The Biostar overclock utility in Windows doesn't seem to work very well so I haven't been able to adjust V on the fly.

__________________
Stock speeds make hardware sad.

5.27 Ghz i7 920 C0 on LN2......5.31 Ghz i7 975 on DICE......6.36 Ghz E8600 on LN2
7.01 Ghz Pentium 4 631 on LN2......7.96 Ghz Celeron 352 on LN2......7.02 Ghz Celeron 360 on LN2

eclipseaudio4

lol @ the chip that wont let u it. You might try some way to use the LN2 on the vregs. Maybe they are getting too hot.

__________________

The Official MSI 790FX-GD70 Owners Thread

AMD 790FX+SLI

Blue Moon Rising Work log Easy 4.2
5000+ X2 @ 3.6 on Asus M2N32 workstation Pro