New Build - GA P35 DS4 - Boot issue(s)

[Sketchpad]

Hi,

I'm having some problems with a new build (if I've left out any important info, let me know!).

Base Machine Spec:

Intel E2180 @ 3.3Ghz w/Arctic Freezer 7
GA P35 DS4 rev 2.0 F7 BIOS
2GB OCZ OCZ2P800R22GK
X850XT PE
Antec Earthwatts 500W

Temps Idle 29/33
Temps Load 57/60

Orthos - Blend Test OK after 8hrs
SuperPI - OK 32M
3DMark - OK

The Problem:

I built the base system. Installed XP SP2 and ran mem tests at stock settings. All OK.

Then started doing some OC'ing. System would boot fine, get into Windows and run stress-tests no problem. Temps + Voltages all ok. Played some games, did some work and figured all was sweet and a nice OC

Then a couple days later on a cold boot the fans started, stopped, started, stopped, one quick beep and then POST showed stock speed. Went into BIOS and all settings of my OC remained - apart from the CPU Host Clock Control = DISABLED

I changed it back to ENABLED, saved, machine did the same "fans started, stopped, started, stopped, one quick beep and then POST showed stock speed".

This went on for about 10mins, then it suddenly decided to stick at the OC settings!

It's happened a couple times (on cold boots) since. I emailed Giga-Byte support and they said they can't do anything

Any suggestions?

 

[Sketchpad]

Also can you do me a favour? Can you look to see if your Sata 2 HD is running in Mode 6 please.

Where do I find that out?


RE Voltage:

 

[Sketchpad]

That setting is listed as: Ultra DMA Mode 5

Out of curiosity - what does that mean/do - the difference?

HD is a Seagate ST3320620AS 320GB SATAII

 

[Sketchpad]

Yeah, the RAM has always been running at 1:1 - so no change there.