ASUS P5N32-E SLI bios navigation

[stopthekilling77]

alright, i'm trying to overclock my machine. system specs are in my sig. i printed out THIS THREAD so i'd be able to easily go step-by-step, right?

basically, im still learning this overclocking thing, but im pretty sure i could be successful if i could decipher the differences in BIOS-es between his american megatrends and my Phoenix Award Bios (version 1205 for my specific mobo)

so, i cant find where to tweak the cpu frequency, but i can change the multiplier. i cant figure out which settings correlate with the settings named in the linked thread above.

please anyone who's done sucessful OC's with similar BIOSes to mine, i need your help!

[InspectahACE]

I have the same mobo, but i never really OC'd manually..i just used the AI overclcoking pretty much..but i dont use it anymore since i know it could be better OC'd manually..i know in the bios the ablility to manually change the OC settings is in the Extreme Tweaker submenu in the bios...where it says "AI" just change it to manual and you will be able to change the FSB and the CPU frequency...

[stopthekilling77]

yeah i did that though, and theres nothing that flat out says CPU frequency in there, or anything similar. closest thing i found was the FSB in Mhz to be 1333Mhz and all...

[InspectahACE]

well snap..i thought it was in there....sorry for the bum info there dude..i only really overclocked usin that AI crap...thought i saw what ya needed

[stopthekilling77]

its cool, thanks for the help anyway! i basically need to figure out whats what, because i've been in the advanced tweaking section, and its nothing at all like the bios' i've been in before.

[InspectahACE]

yea im in the same boat as you lol....

[stopthekilling77]

GAHHH!!!
if theres anyone out there who's "OC-capable" using a similar ASUS/bios combo, i'd greatly appreciate some insight to the terms/settings you ran into, so i can figure out which options are important and which aren't of explicit interest for the task at hand...

[kenc51]

I hope this helps! (I don't have a 680i based board though!)

To get your CPU / Memory clocks, you need to goto the "Extreme Tweaker" menu.

FSB - Memory Clock Mode = This can be "Linked", "Unlinked" or "Sync" - If you choose Linked or Sync, the memory speed increases as you raise the FSB. "Unlinked" allows you to set the memory speed independent of memory speed.

FSB = FSB (QDR), MHz - by default this is @ 1333 with your CPU (Devide by 4 to get real value) - Increase this to OC your CPU ;)

Mem DDR, MHz - This is where you set your RAM speed when you set to "Unlinked" or allows you to change the "memory divider" when not using "Unlinked mode"

You then need to goto the "Overclcoker" sub-menu
Here you can change/lower to CPU multi (useful if you want high RAM speed)

Memory Timing Section --> This is where you set the various timings. Starting off, you're best to only change to main 5 timings and leave the rest on auto (be aware that this board uses very tight sub-timingsby default, so you might need to increase them for high memory clocks) - you can download a tool called "Memset" to see what timings the board uses when set to auto, then use this as a starting point when tweaking the ram.

Spread Spectrum Control => Disable everything in here if you're overclocking.
"Spread Spectrum" allows the board to alternate the signals to reduce EMI, but this hinders your overclcoking alot!

CPU Internal Control --> This can be left enabled - helps lower heat

Limit CPUID Max val - Set to "Disabled" if using XP!

Enhanced C1 (C1E) - Disable when overclocking - it lowers the cpu multi when idle to lower heat - can try re-enable after you find a stable OC

Disable Execute Bit - Leave this enabled = Stops some types of viri and poorly coded software from crashing your pc.

Virtualisation Tech - "VT" - leave enabled - this allows you to run a 64bit vmware OS inside a 32bit host OS

Enhanced Intel Speedstep tech - Disable if overclocking ---> allows the CPU to lower voltage when idle (lower voltage when OC'ed crashes the PC)

LDT Frequency - 5x is default - set to 4x or 3x when overclocking! - This is the link speed between components and the chipset, when you overclock the cpu FSB this also increases. Choosing a lower multi helps keep things stable.

You've also got the "Over Voltage" sub menu
Vcore voltage = this is your CPU voltage - ~1.5v should be your max on air cooling. You'll know when you've reached the limit as your temps will be through the roof ;)

Memory Voltage - if you have memory based on micron D9 IC's, then 2.3v should be your max for 24/7 use, but use a fan - default is 1.8v

1.2v HT Voltage - this is the voltae required for the HT link. Increase this to get higher FSB clocks. This is a sensitive voltage and not all setups work well with this maxed out. Some work better with 1.3v instead of something higher.

NB Core Voltage - Chipset voltage - need to increase this when increasing the FSB and you hit a wall. Watch the chipset temps though as the 680i chip runs hot already!

SB Core Voltage - Some find increasing this helps with high OC's. I've never had to increase it on an intel chip, but you might have to with nvidia

CPU VTT Voltage - this is the reference voltage for the CPU. By default it's set to 1/2 the vcore voltage. When you have hit wall and adding more vcore doesn't help, start increasing this. Vcore is more dangerous than VTT so you are ok to "play" with this setting. increasing too much or having this set too low will cause reboots.

DDR2 Controller ref voltage - increase or decrease this to help high fsb overclcoks - each board responds differently!
DDR2 Channel A Ref voltage -
DDR2 Channel B Ref voltage - both of these are like the cpu VTT voltage for each DIMM slot. You can fine tweak the memory supply to each slot to help with high ram clocks!

This is everything I can think of, unless you want to send me a 680i based board I won't know what other options it has

Ken

[stopthekilling77]

ahhh okay this helps quite a bunch. i'll be sure to have more questions soon though! lets see if i cant get this E6750 up from stock at 2.66Ghz!
i'm shooting for 3.2, but lets see if i can make 2.8 and 3Ghz solid first!

[cpabgl]

Hi Ken,

I have the same issue and can really use your help to optimize the OC. Any chance I can call you? Please e-mail me at [email protected]

Much appreciated,

Brian

[kenc51]

Hi Ken,

I have the same issue and can really use your help to optimize the OC. Any chance I can call you? Please e-mail me at [email protected]

Much appreciated,

Brian

You can create a thread or send a PM if you wish

[stopthekilling77]

xD

[mulldawg]

Did you get your system to the speed you wanted. I'm running a similar setup.

Asus P5N32-E SLI
Intel Core 2 Duo E6850 3.0 Ghz Running @ 3.6 Ghz
4 X 1GB Crucial Ballistics Tracer 1066 Running @ 800 With timings of 4, 4, 4, 12 2T <--- Haven't played with the memory to much
BFG 8800GTX OC
Thermaltake Toughpower 850W
Antec 900 Case

Cooling Solutions
5 120 COOLER MASTER Fans @ 110CFM (4 on the Case, 1 on the CPU)
Thermalright Ultra-120 Extreme CPU Cooler

If you need over clocking examples for this board id be glad to give you a hand. Oh and I over clocked mine manually. I didn't like what asus's little program was doing with my voltages.

[stopthekilling77]

yeah its up to 2.90Ghz right now, as its running fine folding for about 6-8 hours a day. but the real fun will be once i get moved into my new room, where it'll be running 24/7. im hoing to get it up to 3.4, but i think its going to take a little bit of work. so far all i've done is loosened my memory timings to 5-5-5-15 and put my FSB up to 1450, keeping my multiplier at 8. once it passed Prime95, i tightened the memory timings up to 4-4-3-10 again, and everythings been great.

i just set up my dual boot (Vista Ultimate 64-bit and XP Pro) and both OSes run great with this OC.
i'm looking at getting another set of the same Muskin modules to round out at 4Gb like yours, but whether that comes before or after my video card upgrade is yet to be seen.
thanks for your interest in my OC! i can't wait to move my pc into the new room and get the OC juices going again!

[mulldawg]

What voltage are you putting to the ram to get that timing.

Right now im only doing 1.9V @ 4 4 4 12 2T and it passed 24 hour memtest

[stopthekilling77]

shoot im not sure, wouldn't CPU-Z tell me that?

[mulldawg]

hummm... I know asus's Monitoring Utility will. IT shows voltages, temps, fanspeeds.

Also Everest will http://www.lavalys.com/

Everest Free Edition (Never Used it) http://www.majorgeeks.com/download4181.html

[SirLagalot]

mulldawg, I'd be interested in knowing how you've got your BIOS setup. I'm running pretty much the same hardware you are except the e6750 instead of e6850. I'm having a bit of stability issues with my overclocking, but this is my first Intel o/c in a few years and I'm still finding my bearings. I'm pretty sure my issues are in the VTT multiplier, but I'd still like to see some details of what you've got going on if you don't mind.

I'm at the very beginning of this little o/c project and was just wanting to get a quick and dirty setup now for everyday gaming/video editing and then test out the individual components (fsb, mem, cpu, etc.) later for a much better long term result. As it stands now I'm not getting much (3.0ghz stable).

Thanks!

[stopthekilling77]

mulldawg, I'd be interested in knowing how you've got your BIOS setup. I'm running pretty much the same hardware you are except the e6750 instead of e6850. I'm having a bit of stability issues with my overclocking, but this is my first Intel o/c in a few years and I'm still finding my bearings. I'm pretty sure my issues are in the VTT multiplier, but I'd still like to see some details of what you've got going on if you don't mind.

I'm at the very beginning of this little o/c project and was just wanting to get a quick and dirty setup now for everyday gaming/video editing and then test out the individual components (fsb, mem, cpu, etc.) later for a much better long term result. As it stands now I'm not getting much (3.0ghz stable).

Thanks!

this is a great place to start SirLagalot: http://forums.legitreviews.com/about10789.html

we're fortunate to have a lot of die-hard OC'ers here, and this thread has been very well kept-up-to-date.