Need good O/C help

esoteric

esoteric

esoteric

Soldato
Joined
5 Aug 2004
Posts
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I've dabbled with O/C in the past rather unsuccesfully, I only got my old AMD 3.4 to 2.6GHz (2.4stock) 217 FSB x12 on a Asus K8NE-Deluxe mobo, I did nothing with CPU volts (didnt have the balls) and did nothing to my 1Gb Crucial Ballistix DDR4000 (because I didnt know I had to).

My new rig is in my sig, I have a 525W PSU, and this time around im gunna admit im crap at O/C and dont fully know how it should be done, and im in need of good help to get me going properly.

Thanks in advance for the incoming help and O/C advice/lessons.
 
You 'll need to set your RAM on a divider, which sets your ram to run at a lower speed than your FSB. Set it to the lowest divider you can to rule out your RAM when an overclock becomes unstable.

You'll also need to set your motherboard multiplier (Known as HT multi if I recall) to 3. That way you can whack your fsb up to 333mhz without having to worry about your motherboard.

Then increase your FSB in increments of 10mhz, booting to windows each time and testing with programs like prime95 and SnM etc until you're satisfied that it's stable.

If the overclock isn't stable or it fails to boot to the BIOS then reset your CMOS, and try the same clock with a higher voltage, but don't go above 1.6v as that'll become rather damaging. Keep doing this until it's stable or you reach 1.6v.

Obviously you can use lower increments to find the exact maximum of your chip, but that's up to you.
 
Zefan said:
You 'll need to set your RAM on a divider, which sets your ram to run at a lower speed than your FSB. Set it to the lowest divider you can to rule out your RAM when an overclock becomes unstable.
Click to expand...

What happens when I put the divider back to normal when I find a stable o/c?

You'll also need to set your motherboard multiplier (Known as HT multi if I recall) to 3. That way you can whack your fsb up to 333mhz without having to worry about your motherboard.
Click to expand...

Do I put this to normal after ive found a stable o/c?, I might have clocked further then the maximum HT allows.

Thanks for the help, with this explanation I can see where I went wrong when trying to o/c my old rig.

What can you do about RAM timings Zefan? is that something I should do after I find the best FSB?. CPU-Z shows that its running at 736Mhz not the 800MHz I expected, ive set the voltage to 2.1v in BIOS which is GeiL's recommended, and the timings displayed dont look right either in CPU-Z, if I copy this over correctly then CPU-Z says CAS 5-5-5-18, but as stock I think it should be doing CAS 4-4-4-12 http://www.overclockers.co.uk/showproduct.php?prodid=MY-058-GL&groupid=701&catid=8&subcat=813 if something really is wrong, how do I go about setting it right?
 
The RAM divider just runs your RAM at a lower speed than (Infact it's a ratio of) your FSB. Work out what the nearest to 200mhz you can get on a divider is (Obviously no higher than 200mhz) and leave it on that.

Keep your HTT multiplier down aswell, otherwise your motherboard will be running at 5*your FSB which is far too much for it when overclocked.

As for timings, simply leave them at stock.
 
I remember finding something in my old BIOS which looked like the ram divider, but I cant find it in this new BIOS, I have a Memory frequency, which I can change to 200, 400, 667 and 800, is this the same thing? and jus to check before I change it does the HT run from the CPU to NB? as its the only thing I could find in BIOS.
 
If there's a multiplier that goes to 5 down to 3 then it's the one you want to change, it's called loads of different things by different manufacturers.

As for dividers, memory frequency sounds about right, but I just realised you're running AM2 and I have no experience with that :(
 
Yeh, the BIOS is really different to what im used to looking at, as for the ram, it displays as double, so 200Mhz on the ram is as low as I can go, im pretty sure thats how it worked out in a thread in the Memory section.
 
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