3700 Almost Got 3! Need help

snakedude

Distinguished
Nov 9, 2006
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18,530
RAM:
DDR, PC3200 (200 MHz), 512 MBytes, Corsair
Memory Type DDR
Memory Size 1024 MBytes
Memory Frequency 165.4 MHz (CPU/17)
CAS# Latency (tCL) 2.5 clocks
RAS# to CAS# (tRDC) 3 clocks
RAS# Precharge (tRP) 3 clocks
Cycle Time (tRAS) 7 clocks
Bank Cycle Time (tRC) 12 clocks
DRAM Idle Timer 16 clocks
Command Rate 1T

CPU:
Name AMD Athlon 64 3700+
Code Name San Diego
Specification AMD Athlon(tm) 64 Processor 3700+
Package Socket 939
Family/Model/Stepping F.7.2
Extended Family/Model F.37
Brand ID 4
Core Stepping DH-E6
Technology 90 nm
Core Speed 2812.1 MHz
Multiplier x Bus speed 11.0 x 255.6 MHz
HT Link speed 1022.6 MHz
Stock frequency 2200 MHz

MOBO:
Mainboard Vendor ASUSTeK Computer INC.
Mainboard Model A8N5X
BIOS Vendor Phoenix Technologies, LTD
BIOS Version ASUS A8N5X ACPI BIOS Revision 0902
BIOS Date 03/20/2006

This is the furthest i coudl push my sandy 3700 from its stock 2.2 to 2.8. I am trying to reach atleast 3. All the parts and wht I did are above. I am using the Big Typhoon VX to cool, and i get about 45 degrees on full load. When i try going to 2.9 using XP, it locks up, same as trying in bios. I know i have to decress the HTT multiplier so it doesnt go over 1000Mhz, but its the ram that confusing me. I was told my ram would lock up when it rached 225 MHz... Right now it is at 166 and when i Bring the FSB to 273(to get 3 GHz) it wil llock up. Doesnt make sense to me, could it be the timings ?

THanks!