Mr Vain / Et Al,
A Belated Update: Took awhile to get hold of some suitable shorting medium to do the voltage update - Ended up using some car rear-screen heater repair paint!
Anyway, decided to go for the 1.5 volt mod from Guru Mallet - All went well, and depending on what you use to check the voltage, I now have 1.44 - 1.5 volts hitting my D805
Sadly this has done NOTHING in getting my overclock any higher than it was before

I am still stuck at 155 - Anything over 160 and my board does not even post. It seems to hang just as the light comes on on the DVD drive (suggesting Drive strength problem??? - I have already had to set it on the highest setting to get 155 stable).
So far I have tried the following:
Memory:
DDR2 Dual Channel (1Gig) 1) OCZ 5400/667. AND 2)Geil Ultra 6400/800
Tried both makes with just one/two sticks single/Dual channel - No change.
DDR1 Infinion PC2100 512Mb Single stick (No dual channel set)
Graphics:
Removing my MSI 6800GT and popping an old x4 AGP card (doesn't need the extra power lead - Using less power seemed like a good idea to me). No Change.
Removed all hard disks (Just to see if I could get past POST) Failed.
Tested my voltages (taken directly off the leads using a MM) and here's what I have:
12V : 11.96
5V : 5.08
3.3V : 3.35
One interesting point is that using PC Wizard/Bios, the voltages seem pretty much the same for all but the 12V rail. This shows 11.13/11.7 - I wonder if my board is "leaking" somewhere :laugh:
Needless to say, I have tried all of the above hardware combinations with all of the various BIOS settings suggested in this forum (From leaving everything to AUTO, or manuallly using SPD, or having the Laxest timings my memory will accept).
I REALLY don't want to let this board beat me, but am running out of ideas!
Have I missed anything?
Haricot :|
Stable setup at 150 is:
Xpro 480 PSU (With extra 4pin 12V cable connected to M/board).
M/Board bios Using 2.40, 2.20, and Orig 1.8
D805 (1.5V Mod)
Artic Frreezer 7 Pro (Temps Max 51 Idle 38 Ambient 30)
MSI 6800GT AGP (Driver 6.14.10.8265) /Matrox G550 AGPx4 - Both in Dual screen mode
Maxtor 250 SATA ( Jumped to 150 Sata I )
Maxtor 160 IDE