Latest OC of new rig

[polobunny]

Originally Posted by PTRMAN

PSYCH!

I'm calling a VICTORY! Dropped CPU Core, changed RAM settings, upped GTL lanes to +50 each and now I'm 12+ hours folding SMP and GPU2 stable! At 3.825! Temps in high 40s / low 50s.

WHOO HOO!

Don't be so quick on yelling victory.

But... weeeeeeeeeeeeeeeee! :P

[PTRMAN]

Yeah - I was playing with it - folding SMP + GPU2, ripping CDs, listening to music, and sorting through my iTunes duplicates - and it froze on me. Figures. 72% done on SMP. Tried qfix after rebooting when SMP didn't pick up at the 72% level, so I might have lost all those points. Well - I'll take a partial victory; it's better than anything else accomplished so far. If I'd just left it alone it'd likely be fine. I'll play a bit more tonight then try to keep hands off t tomorrw.

[PTRMAN]

Originally Posted by owcraftsman

Wish I could help you with the gTL but I personally have never messed with them. So thanks for the links and sharing your experience It's been enlightening.

I've been reading a bit about it and it seems that quads above 400 can really benefit from GTL tweaking.

Originally Posted by owcraftsman

This guide may also be of assistance to you.

I'll look into this too, though.

Originally Posted by owcraftsman

Reading back through and from other threads as well it seems to me you are running a GPU client. Correct me if I'm wrong.

No, that's right - GPU2 client

Originally Posted by owcraftsman

Therefore maybe our focus needs to shift. If you've already done this then just ignore but I always bump my PCIe_3, MHz (in bios) to 103-105. Considering all components share the same bus it's only natural to assume it needs bumped too so it's running in lock step with the rest of the system. I'm currently running at 103MHz @ 3.8. I guess I just always bump it up and figured most peeps did the same but I noticed in you Screening it was still at default 100. So if you haven't bumped it give it a try. It works for me and may solve your trouble.

I had originally (first boot or so) put the PCIE at 102 or 103 but I couldn't get my system to recognize my TV card. Dropping it back to 100 solved that problem. I'll look into changing the PCIE back up a few nudges. Thanks!

[owcraftsman]

I was wondering if you saw the post...
Hmmm that's interesting. I'm assuming at this point your TV tuner is PCIe. That's not good news. I've been looking at Some PCIe Tuners my self to stick in my 780i, right now I use an OnAirGT usb tuner for HDTV. It's really for mobil use but works excellent with the desk top as well. Maybe I'll have to re-think this. I just figured out a few days ago that 16x slots are backwards compatible with 1x, 4x an 8x PCIe components.

I've had pci tuners and raised the PCIe bus frequency with no ill effect. So it must be limited to PCIe devices. In any case I can highly recommend the OnAirGT if that helps solve your problems.

[PTRMAN]

Well, I'm not gonna be home for a week, so I've dialed the OC back to about 3.4Mhz - hopefully will be 100% stable so the SMP and GPU2 clients will run and rack up some points with no hanging while I'm gone. I'll look to start in again with the OC in early December. With all the helpful advice I'm getting I really think I can get a 3.825Mhz (+ possibly higher?) OC stable.

Edit = Happy Thanksgiving Everyone!

[owcraftsman]

Hey! Have a safe and Happy Holiday. I hope all goes well while your away too.

[PTRMAN]

Of course nothing went as planned - power outage at the house less than 24 hours after we left so I lost five days' worth of folding. *sigh*

Feeling like chucking the whole thing - I can't get the damn thing stable even at default bios settings.

Ran 7 hours Prime blend at 3.4Mhz, then failed later in the day folding.
Ran 3.95X Memtest OK while GPU folding, then later failed after about 20 hours.
Yanked the OCZs and put in old G.Skills AND tried pencil mod (I think I did it correctly but I can't be sure). Tried SMP and GPU at 3.4 w/some different settings but it froze shortly afterwards.

This is really getting me down. Maybe I was spoiled with the first OC going so easy. Is the 780i SLI known for being finicky?

[polobunny]

Yes, the 780i can be finicky.

That said, you can know if your pencil mod works with a multimeter or under Windows.

Go back to default, take baby steps. You're probably missing out on something easy to forget. Don't shoot for 3.4GHz just yet.

[PTRMAN]

Good advice, as always Polo.

I feel a tiny bit better after a night's sleep. It's just so frustrating! I had it semi-stable at 3.8 and now I'm having trouble even at lower clocks. I just can't figure out what's causing the freezing.

[PTRMAN]

Just out of curiosity, does anyone have a favorite board (775/DDR2) that's relatively less touchy than the 780i?

If I can't fix this in the next month or so I'm either going to beat it with a baseball bat or change boards.
Edit - or both!