First time OC'er help please!

[MightyDiomed]

Hey guys, recently had a crash and my BIOS erased everything that AVA Direct did in there for me...so, I am on my own to restore the OC settings.

Here is what it used to be at..3.5 GHz at a FSB of 390 x multiplier of 9. Ram at directly 1:1 down clocked to 780.

Here are the specs of my system:

Case: Tagan CS-EL Diablo
Mobo: ASUS P5K-SE
RAM: g.skill PC6400 800mhz 8GB 4x2GB sticks
CPU: E8400
HSF: AC7 Pro
Videocard: EVGA 8800 Ultra
HD: SEAGATE, 250GB Barracuda 7200.10, SATA 3.0 Gbit/s, x2 in Raid 0 with PCI raid controller

Now, I was able to find a few things out and here is what I currently have the system at...

E8400 @ 4ghz
FSB: 445 x9 Multiplier
CPU Voltage: 1.425v
Memory Timings: 5-5-5-15
Memory Voltage: 2.00v
Memory Speed: 890mhz

Temps:

Idle Temp: 40ºc
Load Temp: 56ºc

The only thing that is currently stumping me is that I have no idea if its stable or not...If I run Prime95 or Orthos, they each go for about 7-25 seconds and then atleast 1 core wil have an error.

Anyone have any ideas on what I can change around?

Thanks in advance, any help is greatly appreciated!

 

[MightyDiomed]

No one has any ideas on how I can get this at 4ghz? ;

 

[ADRENALIN_2099]

what are your temps when the prime fails?

 

[Darkatom]

Is that 1.425vcore bios, idle or load ? Also try giving the northbridge a couple of bumps seeing as your running 8gb of ram.

 

[MightyDiomed]

1.425v in BIOS..the temps when Prime fails reach around 63, I think.

 

[ADRENALIN_2099]

63 is a low temp for prime to fail...

what PSU do u have?

 

[Acoustique]

always a good idea to fan-up the northbridge with a 50mm, should easily be able to attach one sucking
That piddly little northbridge sink would be cooking,

Ideas on 50mms? those simple generic metal frame HDD's coolers usually come with 2

 

[MightyDiomed]

I have a 800W BFG PSU, could it be that the motherboard doesn't like the higher ram clock speeds? It won't POST with anything other then 5-5-5-15, and I was reading somewhere that the motherboard I have, won't OC well with more then 2 sticks.

 

[MightyDiomed]

Could it also be due to a software conflict like AVG running as well etc?