Attepting O/C 3000+ No Luck

[Ragingbull36]

Just bought a 3000+ 939 attemping to O/C cant get passed 1.9ghz

Here are my Specs:
939 3000+
MSI Neo2 Platinum
2x- Corsair XMS 3200 CL2
Seagate 7200 SATA
560 Watt Thermaltake PSU

205FSB Max, Dynamic O/C locks up every time.

I beleive what is holding me back is my Corsair XMS ram. I had to buy another stick because my CPU wouldnt boot with 2 different revision sticks inside of it. I have a Gigabtye 939 Copper Fan.
Please any suggestions will help!

 

[broly8877]

Drop a divider?
Raise voltage?
Drop HT?

 

[Zebo]

Isolate then consolidate.

What that means is test three parts of CPU and subsystem to find max speeds of each.. then combine them for some sort of optimal overclock.

1. Max FSB

-set multi to 6
-set mem to SPD and 100
-Crank FSB up until you fail or there abouts

that's your boards MAX FSB capable

2. Chip

- Set multi to 9 (it's max)
-Set vcore to 1.6 or 1.65
-Set mem to SPD and 100
-Raise FSB up to boards max or until you start failing prime

that's your chips max speed

3. Memory

-Set mem setting to 200 and low 2.5-3-3 10 1 T and 2.9V
-Set chips multi to 6 again
-Raise FSB up to boards max or until you start failing memtest86 test 5

That's your mem max


I'm sure you can fiqure out consolidate.

 

[Zambien]

Update the bios to 1.3 and SET THE HT FREQ TO 3X (most important). By default it's at 5x which makes the HyperTransport try to run at 1+ghz (which it can't do).

The way the hypertransport clock is calculated is...


FSB x HT

so

205 x 5 = 1025 ---> which is too high for the hypertransport.

If your bios locks up when you try to access the HT under cell, restore to failsafe in the bios after you reboot, then you will be able to change the HT (i had to do this).

I hope that helps.

Adam

P.S. - be sure to update your bios to 1.3. I haven't tried any of this with the old bios!

 

[formulav8]

You must have the ht at 1000 or something. I can only get to 208-210mhz ht speeds with 1000mhz ht.

Make sure the ht link divider is at least set to 4x NOT 5x. That should fix your problem.


Edit: Someone else seems to have posted about this being the reason before me



Jason