Asus 680i, P5N32-E Sli Results.

[alexanderhuzar]

I need advice to go higher than 1800 (450) FSB and over 3.6 GHz.

My problem with CPU is that to go from 3.5 GHz to 3.55 GHz it took me from 1.60 to 1.6250 volts. I'm running water-cooling with Apogee GT block. Water temp is 30.5 idle and goes up to 35.5 while running orthos stress CPU with priority 6. I'm afraid to burn up chip. I really want it to last at least 12 months.

The probmel with the board is that I can't do 500 FSB no matter what I try. at 450 FSB exactly it freezes during post after displaying CPU speed. I have to clear CMOS to reset it. I can do 1900 FSB (475), but within the first few minutes of memtest I get errors, and Vista won't even boot. The multi-boot program has internal CRC error-checking and tells me the files are corrupted. Once I back off the FSB it loads no problem.

I'm using the Thermaltake Extreme Spirit II for northbridge and southbridge and Thermalright heatpipe MOSFET coolers in place of the stock cooling.

I noticed Kunnak put high SB voltage in his very first posts in this thread. I'm gonna try playing with SB voltage. I'm sure I might be able to squeeze maybe 20 extra MHz out of both the CPU and FSB, but I doubt I could do much more without TEC/phase.

I'm not going to start overclocking the RAM untill the CPU/FSB are sorted out. Right now at 5-5-5-12-1T @ 800 MHz the RAM is at stock settings for daily use. (I use 5-5-5-18-2T when overclocking.)

ANY input at all would be appreciated.

Here's what I set in the BIOS:

BIOS version - 1103
1.6250 Vcore
1.9750 RAM
1.45 1.2V HTT
1.45 Northbridge
1.60 Southbridge
1.55 - CPU VTT
AUTO - RAM controller
AUTO - Channel 1
AUTO - Channel 2

Spread spectrum - all OFF
Legacy USB - OFF
CPU themral control - OFF
Limit CPUID MaxVal- OFF
Enhanced C1E - OFF
Execute Disable - ON
Speedstep - OFF
Virtualization - ON
LDT - 5x

in the screenshot I was running RAM (DDR-800) with timings of 5-5-5-18-22-2T but now I'm running 5-5-5-12-1T with 100% stability (also ram memtest86+ for 4 hours).