My first overclock!

Teki187 · 22 Feb 2008 at 13:06

Hi, this is my first real try at overclocking so please let me know if i need to change something or if i can push it harder.

Current system is:

C2D E6400 stock 2.13ghz
P5N-E
2x 1gb Geil 6400 Cas4 5-5-5-24 (i think thats what the mobo said stock)
640mb 8800 GTS
2x250gb Seagate

So the overclocks....

Currently got the CPU running at 3.0ghz

Memory is at 4-4-4-12

8800 is currently at (in games)

Temps at start up are 25-30c

Temps after 30 mins of Prime small FFT and Blend <45c

Can i push this more? Anything i can change?

Feedback would be awesome. Thanks

Edit: Sorry for the pics, forgot to change them in paint

Teki187 · 22 Feb 2008 at 15:00

domyboy said:
I have the same cpu as you: E6400, 965P DS4, Corsair 6400c4, HD2900 pro
and i have had mine at 420 FSB, with less volts than you so you can definitly push it further

I'm running high volts because i haven't done the pencil volt bridge.

Should i edit the FSB ratio?

Teki187 · 22 Feb 2008 at 16:36

IAmATeaf said:
That is a very high vcore, what are you measuring temps in, if not coretemp then download it and see what it reports.

I'm using speedfan to measure temps.

Teki187 · 22 Feb 2008 at 17:17

I'm just about to play with the memory now.

I rechecked the bios and my vcore is at 1.4v, for some reason cpu-z is saying its 1.5.

Teki187 · 22 Feb 2008 at 17:27

Ok the motherboard im using, when i try to set 1:1 im only able to change FSB (QDR).

Then when you change the value, it automatically changes the MEM (DDR) to match.

So if i put 800 FSB it matches it with the MEM.

Teki187 · 22 Feb 2008 at 17:33

Ok, just managed to get it to

1500 FSB
450 DRAM

FSB : DRAM 5:6

This makes it unstable in othros.

Teki187 · 22 Feb 2008 at 18:02

Ok, if i use 1600 fsb and 800 mem, then my i fail the cpu tests in othros.

Any ideas why?

Teki187 · 22 Feb 2008 at 19:29

Ok its fixed.

CPU @ 3.2ghz stable
Memory at 1600/400 stable

Ran small FFT and blend for a whole test and its running ok.

Teki187 · 22 Feb 2008 at 19:33

Wiggins said:
Could be an FSB hole on your board. Basically meaning that between certain FSB speeds, the motherboard will either not boot or crash in windows.

Ram the FSB up to 1700 and the memory to 850mhz and you should be stable (He says )

The Geil you have will do 900mhz easily although you may have to up the voltage to 2.2v

Still in the safe zone though

Alright, lets have a go.

Teki187 · 22 Feb 2008 at 19:38

BSOD at 1700/850.

Trying 1600/900 now.

Teki187 · 22 Feb 2008 at 19:44

Wiggins said:
Bugger, just noticed you have a P5N-E SLI like I do.

Hmmmm, they seem to have the FSB holes between 1700 and 1780 on these.

You may have to stick at 1600 although that still gives you a nice oc to 3.2ghz

If it wont boot, keep the FSB at 1600 and raise the memory to 900mhz with 4-4-4-12 2T with 2.2v

I have a [email protected] (1825mhz) with Corsair XMS2 800mhz on 1000mhz 5-5-5-15 on 2.17v

Cheers for the replies.

Just orthos'd on small ffts passed, blend failed on thread 2, yet thread 1 was fine. :confused:

All voltages apart from memory are on auto, think thats a problem?

Going to put it back to 1600/800.

Getting some ballistix 8500 on monday, going to do some research on what i can get with them.

Teki187 · 22 Feb 2008 at 20:06

Wiggins said:
Noooooooooo

When overclocking, you should always set the voltages of your hardware yourself.

The motherboard is probably only pushing out 2.08v on the memory when you have it on auto, even less sometimes. Go in the bios and set the voltage to 2.17v and yoiu should be fine

Well when i did the higher tests that you said, i used 2.2v and got the bsod and 2.2v when i tried the 1600/900 which failed on thread 2.