ASUS P5N-E SLI 650i Thread

[Perry]

Try running a memory diagnostic such as memtest. If you're getting a pile of errors at stock then you have some bad sticks.

Perhaps others can provide more info.

[carey8]

i've ran memtest. No errors at all. They are rated to up 2.3 on that site, shall i up the voltage to that. See if i can get a bit more of an Oc out of them?

I cant even boot at a 1:1 divider though. So im having to keep them at ~400Mhz in CPUz.

Shall i up the voltage on them?
Im really confused, could i have been given a bad board? etc?

[jaihenwood]

I get my system this weekend can't wait! =) this is going to be my first over clocked computer so i'm really new (i read the whole thread =)

Originally Posted by dpawl31

Yep you are wrong. lol
The bios shows actual values. Lets look at my rig.

My CPU is rated @ 800Mhz FSB. I am currently at 1000 in bios.
Intel CPUs are quad pumped- meaning my FSB is actually 250x4. (1000)
The multiplier is what calculates your core frequency. Mine is 14.
14 times 250 is 3500, or 3.5Ghz.
Your RAM on the other hand, yes it is rated @ 800. That is not really right though, because it is DDR memory, otherwise known as DUAL data rate.
So you Ram in BIOS shows 800, while your FSB is showing 1660.

If you check CPUZ your Ram is running @ 400Mhz, not 800.
Your TRUE FSB is 415 (quad pumped to 1660)
Your RAM, to run it @ 1:1 only needs to be set to 830, a slight overclock.
This is because your RAM is Dual data rate. Your RAM will really be @ 415Mhz times two, and your FSB will be 415Mhz times FOUR.

So, 415:415 gives you 1:1. I hope this made sense, if not, keep asking questions!

I knew NOTHING about RAM a month ago. I am just gettin' the hang of it.
Also- keep those timings @ 5. You'll need it looser to maintain stability with your RAM OC'd. You may be able to tighten them after.
Also keep in mind you may need to up your RAM voltage to keep it stable @ 415Mhz, but I doubt it. You are already at 2.2v on them anyway, and it is a very minor OC. DDR2-800 can go beyond DDR-1000 speeds if you have good ram.

PS- I am running a 5:8 divider so don't go by my rigs setup lol.
The 5:8 is letting me run the RAM @ stock speeds and gives me a slight performance boost.

so for my system to run at 3 Ghz... i need to set my bios to 1333Mhz
FSB = 1333/4 = 333Mhz
so my ram is ddr so it runs at 666Mhz?
cpu = 333 (FSB) x (my multiplier) 9 = 3 Ghz

you can update your bois after you install window from a program that comes with the board? How do you revert? (take out battery?) do i need to back up bios on usb drive?

where do you actually make changes for your FSB and memory timings (the over clocking process)? (bios at startup or windows program?)

do i need to mess with memory timings? where should i start? just mess with FSB? not vcore voltage setting?

i'll share my results as i progres =)

[carey8]

Some one with a C2D 6300, can youi give me your voltages please.

[gtboi604]

Originally Posted by carey8

Some one with a C2D 6300, can youi give me your voltages please.

interesting...what is your multiplier set to?
try a higher multiplier with a lower FSB
or try a lower multiplier with a higher FSB
try both.
it shouldn't be taking 1.6vcore anyways to get to 3.2ghz...
hmm...just leave your timings on auto for now...
try that n let us know.
D~

[carey8]

isn't the multiplier locked on the C2D range?

[gtboi604]

i thought c2d had unlocked multi's?
maybe im wrong?
D~

[carey8]

Its only ont he XE's they are unlocked to go higher. I can go UP TO 7 but not over it.
Ive tried going to 6. Doesnt like it.

[dpawl31]

so for my system to run at 3 Ghz... i need to set my bios to 1333Mhz
FSB = 1333/4 = 333Mhz
so my ram is ddr so it runs at 666Mhz?
cpu = 333 (FSB) x (my multiplier) 9 = 3 Ghz

you can update your bois after you install window from a program that comes with the board? How do you revert? (take out battery?) do i need to back up bios on usb drive?

where do you actually make changes for your FSB and memory timings (the over clocking process)? (bios at startup or windows program?)

do i need to mess with memory timings? where should i start? just mess with FSB? not vcore voltage setting?

i'll share my results as i progres =)

Your FSB @ 333 will cause your RAM to run at DDR2-666 w/ a 1:1 divider.
You have until FSB 400 before you can't go anywhere with the 1:1 unless you overclock your RAM (which you will do)
I have used the EZFlash in the bios to upgrade, generally windows bios things are not good. Keep a backup of the 2020 bios ( i think its 2020?)

Make all your changes in your BIOS.
When you set it, your FSB will say 1333 and your RAM should say 666.
If you keep it linked (@ 1:1) when you go to 1333FSB it will automatically set the DDR speed.

Don't just set it to 1333 though! You have to go slowly higher and when you get instability, bump your VCORE. Best to find out what your chip is supposed to run at stock (vcore, ram, nb etc)

PS I still have no INTERNET!
I am on a friends PC, I can use my cellphone but it sucks for this site!
PC was running fine @ 1:30am. Shut down. Go to bed.
Wake up @ 8, boot up... no internet. "Limited or no connectivity"
Modem looks fine. All lights are right and Link light working.
Reset modem anyway. Many times.
Even uninstalled/reinstalled driver for Nvidia network controller.
Still nothing.
Comcast said its my "network card".
Device manager says its running properly.

WTH is going on! My friends PC on comcast has done this before, but it fixed within 10 hours by itself... and I think his might have been router related, I don't have a router!

[carey8]

Originally Posted by dpawl31

Make all your changes in your BIOS.
When you set it, your FSB will say 1333 and your RAM should say 666.
If you keep it linked (@ 1:1) when you go to 1333FSB it will automatically set the DDR speed.

You say the Ram should show at like 666Mhz on that system, when i go it in my Bios is hows at the FSB speed of my Processor. After ir un a 1:1 divder, it doesnt boot at all.