Gigabyte P55-UD6

I didn't want to infiltrate anyone else's thread, so here's my UD6 thread I played a bit with the 860 in the UD6 this week on WC. The proc did well in the UD4P on WC and the SS, so I figured it would perform well in the UD6 also (duh).

Just some random pics of the board because I took them

A big feature of the UD6 is the 24 phase power:



On-board switches and status indicator LEDs. As one who rarely uses a case and OCs to the edge (and too far sometimes), I love both of those features and always have on the Giagbyte boards.



P55 is dual-channel only, but the UD6 has 6 slots and can accommodate up to 16GB of DDR3....should you really need that much for something



Gigabyte P55-UD4 left, P55-UD6 right. UD4 OCs very well. UD6 OCs very well too and just plain ole has a lot more of everything



Guess which has 24 phase power?

Gigabyte P55-UD6
Intel Core i7 860
2x2GB Kingston HyperX 2000MHz CAS8 (2 sticks from a tri-channel kit)
Gigabyte GTX 260 SP216 (stock cooler)
Odin 1200W PSU
NexXxos XP CPU water block
2x BIP II rads in series with *1* Panaflo H1A each
MCP 355 pump













Yes, the 3D01 is stock air clocks on the GTX260. 1.21V via Riva softmod.

That is very strong 860 you have there Ross. great work, love that > 4.5 Ghz stable benchies

Yeah, it's good Good cooling and still never looking at temps also helps I made that mistake on a wPrime 1024 with 4/8 @ ~4400MHz once, so I stopped LOL. My thoughts were, if it finishes the bench, it's not "too" hot.

Now if I could just get this mem figured out...

I was running two sticks of HyperX Ultras (3x2GB 2000MHz 8-8-8) for the benches, but I had another set of HyperX 3x1GB 2000MHz 9-9-9s that I got with my first 1366 board. They didn't really work well right from the start in tri-channel, but I dug them out yesterday to give them a try. Sure enough, it wouldn't boot with them in. I swapped one of the sticks for the 3rd and it fired right up. So, one of the sticks must've been dead or dying before I even got them (used). Note to self: buy tri-channel kit for dual-channel board so a spare is always on hand.

After some messing around I realized that they would POST at really high speed with AUTO timings (9-9-9-24). I worked up the nerve to put 1.80V to them (more worried about the IMC than the sticks) and just started tinkering until it would make it to the desktop.

This is boot from BIOS to the desktop:



I run out of BCLK before I run out of mem speeed LOL. I've "validated" all the way up to 1322MHz with 9-9-9-24, but ever single validation I've done >1200MHz says "dump corrupted" when I try to submit.

1M and 8M are no problem up til about 1250MHz, but 32M needs some major secondary slacking even for 1230MHz. I'll need to work on this whole thing some more.



FYI, my old Ballistix 1600s do 1075MHz 9-9-9-24 at the same 1.80V.

Those are smokin RAM speeds Ross, good to know the CPU (IMC) is not too much effected by vdimm, did you increase vtt as well whe you boosted your RAM speeds.

Not any more than I've had it before. 1.56Vtt is the max on 1156 apparently. It doesn't seem to take any more than before for 200BCLK/1200MHz though and I'm thinking it wouldn't take more than the 1.72-1.74Vdimm there either. Once I get things sorted out, I'll start taking away voltages where I can.

It will be interesting to see what happens on cold, >230BCLK with the 2:10 ratio. I'll try to drop the SS on it during the week to test that.