Update: I changed some things around in an attempt to make this ram more stable at higher speeds, as well as the whole system run cooler and also upgraded my graphics card into a Crossfire setup; Just some general TLC.
Bios settings are the same stable 3.4 OC/1333 ram I ran before the changes, with the addition of the LCD poster now monitoring temps. Before I go for 3.8 and some tighter ram I feel I need to address some annoying issues that cropped up since, so I hope you gents can help.
Specific Hardware Changes:
- Moved the ram to the proper white slots.
- Removed the mobo heat sink, cleaned it up and replaced the thermal paste on both the NB and SB, and put it back on with nylon washers on the back for more grip. I did leave the plastic spacers between the heat sink and the mobo though, as I figured they were important since the whole thing is made of metal.
- In went two 5870s (my new babies) and out came the 4870x2.
- Finally bit the bullet and re-installed the LCD poster so I can get a second opinion on what pc probe II is telling me.
- Installed one of Asus’ thermal probes for an extra case temp reading.
Ok, on to the new problems.
First: Once in about every 8 cold boots or so, the LCD poster hangs on DET DRAM. I reboot it again, it appears to correct itself and start; reset does not correct problem. Often gives me the overclock failed press F1 message once it starts. I can only assume this is related to moving the ram to the white slots. I have made no other ram related changes, and again no significant bios changes from when they ran in the blue slots.
Is a slight DRAM voltage increase needed for the different (faster) slots? Is updating to 1201 a good idea here?
Second: The cooling changes I made to the heat sink, with tighter mounting and re-application of grease haven't been what I hoped for in lowering NB temps (the whole point of it for me). However, Power, MB and SB temps have all dramatically lowered from 3 to 7 degrees under load. But my NB hasn't changed at all... Its temperature is the same 62 degrees while gaming for a few hours it has always been. It does take a longer time to get that hot now, but it still gets there. I don’t think it’s seating over the NB as much as it should.
Anyone know if I remove the plastic spacers under just the northbridge if it will cool better? I can’t afford to replace the whole sink, and the thing is already pretty tight with the nylon washers; enough to put a very slight bend in the board.
Third: As soon as I plugged the LCD poster back in and set it to monitor temps, PC ProbeII is giving me random weird voltage and temp spikes I have never had before (each for a couple seconds at most). The system is completely stable, and HW monitor isn't showing any spikes in temps or volts, but they randomly appear mostly after booting up. Can’t be hardware related, if for example the CPUPLL did hit 11.09 volts I’m sure it would cause catastrophic failure issues. Happens with the both SB, VTT, OPT_FAN Temp as well.
Am I right in thinking its just an error related to the LCD poster, or could it be something hardware related I’ve changed?
Sorry about the length...