HI all.
First, thanks to this forum, I was able to get my very first build up and running, with ICH8 RAID working, on my first try! Thanks so much for all the info shared here!
I'm now working on my first overclock and looking for some pointers on nailing it down to fully stable. I have a P5B deluxe (latest, 10.04 BIOS), with a C2D e6400 (r.L2), 2GB of Patriot eXtreme Performance DDR2-800 (4-4-4-12) RAM, a GeForece 8800GTS, and a Nzxt Apollo case with 3 120mm case fans- oh and a Tuniq Tower. Also onboard audio is diabled and I am using an x-Fi audio card, if that matters.
I'm really only looking to get to 3.2ghz (400x8) to run my RAM at rated stock speeds without an OC. With all of the reading and research I've done I'm still a noob and having trouble getting it Orthos stable at 3.2 ghz...
I slowly worked my way up, getting stable all the way up to 350x8, then decided to jump the 'FSB hole' as recommended by several guides and went right for 400. Everything posted and booted up fine, but at auto voltages temps were high, so I went back to start adjusting voltages manually (RAM voltages have been at manual 2.25 volts from the beginning (as per rated specs). Windows wouldn't boot until vCore was at 1.375 in BIOS (with other voltages except RAM at auto). But Orthos stopped after 3 seconds. After much tweaking of voltages, the best I can get is 30 minutes of Orthos before failure. Temps are OK, and I can use the computer for hours (even played some FEAR and some Oblivion) but Orthos doesn't make it past 30min. The settings are (in BIOS): vCore: 1.4375, FSB Term Voltage: 1.3, NB V: 1.45, SB V: 1.5.
I've read conflicting info about a few things, so I am asking for pointers... I've heard some say to set FSB and NB to MAX voltage for best stability. I've also heard that some get better results at the lowest settings. I also know that others have gotten faster speeds than mine at lower vCore, but I can't seem to... I have ALSO heard that some say to skip 400FSB, while others say that 400 is the start of the 'good' strap.
What to do next? Should I stay at FSB 400 and keep tweaking? I don't want to go much higher on the vCore - how high can I go (especially accounting for vDroop)? How about my other votalges? Should I try another FSB? Like 410 or 420? I've read good things about my RAM - that it can handle speeds up to around 900+ with good timings - so maybe this will help?
I obviously have some ideas, but have hit a point where I'm a little nervous about pushing things further without some guidance. I've read so many guides and tutorials, but the conflicting info has my head spinning - I feel like I'm so close, just need to do some tweaks to get fully stable.
Thanks for your time,
ScottieB