What's your memory assessment speed?

Thanks, I'll do that.

In the meantime, here's my latest results. Some things up, some down but overall I'm happy.

Prime95 defaults to 8K FFT, which doesn't work on my system, so I set it to Custom 1024K and 8000MB. Unfortunately, it errored straight away and BSOD my PC!

I tried upping the CPU-NB back to 1.4v, but it failed to boot (seems quite random), so I've dropped the NB down to 2600Mhz for now and Prime95 is running OK at the moment, although everything gets a bit toasty so I'm going to have to look at my cooling (running a TRUE rev.C with Nexus 120mm @ 1050RPM).

Yeah, not very technical but that's what came to mind when I went to plug a USB stick in and felt the heat coming off it!

In HwInfo, the CPU temp (under AMD 10h+ CPU Thermal Sensor) was about 71c and I think the others (CPU, Aux, Motherboard) were in the 60s, but I was more concerned with stopping the test than noting them down at that point.

I'm running Prime95x64 to test the NB @ 2600Mhz now, and the Blend option is working. Maybe it didn't work before because I was running the 32-bit version.

I've updated my BIOS from 11.6 to 11.8 hoping it might offer higher NB voltages than 1.388v, but it doesn't.

It should be fine. Only built the system a couple of months ago and used Arctic MX-2.

With nothing overclocked, with Prime95 CPU Thermal Sensor is at 62c, CPU 51c, Motherboard 37c, T1/D1+ 52c. At idle, I get CPU Thermal Sensor 33c, CPU 23c, Motherboard 35c, T1/D1+ 24c

I'll double-check with CoreTemp next time but running it now at idle the temps shown are the same as HwInfo

Actually I do have the CPU overclocked to 3.9Ghz. Did that with ATI CCC, so forgot about it as it's not shown in the BIOS

I just flashed the latest beta BIOS (11.8b2) and it does offer one extra step for NB at 1.394v, but even at that and CPU-NB at 1.3v I got BSOD pretty soon trying NB at 2800Mhz, even with the RAM on Auto (1333Mhz).

Just testing with the RAM on Auto and the NB @ 2600Mhz, with NB and CPU-NB both at 1.3v. Seems OK so far and might keep the temps down a bit. Then I'll test again with the RAM at 1600Mhz to see if that increases temps.

Thanks, but MX-2 doesn't require curing.

It's hard to compare temperatures without knowing the CPU, heatsink, fan, etc but as my X4 is idling at 33c with the Nexus 120mm only pushing 36.87 CFM, I probably haven't got the same problem you had.

I'll probably try the Scythe Slip Stream 120mm PWM Fan, as it goes up to 1300 RPM / 74.25 CFM when needed but will still run quietly the rest of the time. As I can't run the NB higher than 2600Mhz, I'll see if I can shave a few °C off by lowering the voltages a bit as well.

DDR 2, 8 GB, should be running dual channel. I'm confused by the CPU-Z timing. I've never quite understood what everything means. It says my memory is running at 533? I'm confused. The memory should be running at 1066...unless that's what each stick is, and dual channel is 1066...someone help?