Hi, again... look, I've been trying all night to get more speed in my cpu, but the maximun value I get was 3120 ghz (see my specs below) I tryed everything, the pc hangs and refuse to boot (reset bios, unplug the battery an all the stuff) and that's my results. Is there a guide to overclock it correctly? How works the multiplier? (or of what depends) it is possible to set higher value manually? I hear that this kind of Northwood is capable to work at 3400 Ghz and to be stable like a rock (but no tell how) FYI: My memory is a PC3200 / 512mb Spectek Agp Aperture Size = 64 If you need more data ask me. Thanks, really thanks in advance Mobo: Intel 865PERL Chipset: Intel® 865PE CPU: Intel P4 Northwood 3.0 GHZ / 800mhz FSB RAM: 512MB DDR-SDRAM / 200 Mhz Video: ATI Radeon 7000VE Series TV-Out 64MB /350 Mhz Audio: SoundM

Before you ask for more data, here it is: CPU-Z Report --------- CPU-Z version 1.28.6. CPU(s) Number of CPUs 2 (1 Physical) CPU#1 APIC ID = 0 Name Intel Pentium 4 Code Name Northwood Specification Intel(R) Pentium(R) 4 CPU 3.00GHz Family / Model / Stepping F 2 9 Extended Family / Model 0 0 Brand ID 9 Package mPGA-478 Core Stepping D1 Technology 0.13 µ Supported Instructions Sets MMX, SSE, SSE2 CPU Clock Speed 3120.5 MHz Clock multiplier x 15.0 Front Side Bus Frequency 208.0 MHz Bus Speed 832.1 MHz L1 Data Cache 8 KBytes, 4-way set associative, 64 Bytes line size L1 Trace Cache 12 Kµops, 8-way set associative L2 Cache 512 KBytes, 8-way set associative, 64 Bytes line size L2 Speed 3120.5 MHz (Full) L2 Location On Chip L2 Data Prefetch Logic yes L2 Bus Width 256 bits CPU#2 APIC ID = 1 CPU Name Intel Pentium 4 (logical unit) Mainboard and chipset Motherboard manufacturer Intel Corporation Motherboard model D865PERL, AAC27648-209 BIOS vendor Intel Corp. BIOS revision RL86510A.86A.0071.P13.0401221036 BIOS release date 01/22/2004 Chipset Intel i865P/PE/G/i848P rev. A2 Southbridge Intel 82801EB (ICH5) rev. 2 FSB Select 800 MHz Performance Mode disabled Graphic Interface AGP AGP Status enabled, rev. 3.0 AGP Data Transfer Rate 4x AGP Max Rate 4x AGP Side Band Addressing supported, enabled AGP Aperture Size 64 MBytes Memory DRAM Type DDR-SDRAM DRAM Size 512 MBytes DRAM Frequency 208.0 MHz FSB:DRAM 1:1 CAS# Latency 3.0 clocks RAS# to CAS# 3 clocks RAS# Precharge 3 clocks Cycle Time (TRAS) 8 clocks # of memory modules 1 Module 0 SpecTek Incorporated DDR-SDRAM PC3200 - 512 MBytes Software Windows version Microsoft Windows XP Professional Service Pack 2 (Build 2600) DirectX version 9.0c So... how I'll overclock this cpu? Thanks Mobo: Intel 865PERL Chipset: Intel® 865PE CPU: Intel P4 Northwood 3.0 GHZ / 800mhz FSB RAM: 512MB DDR-SDRAM / 200 Mhz Video: ATI Radeon 7000VE Series TV-Out 64MB /350 Mhz Audio: SoundM

have you increased the Voltage when raising the FSB?? if not push it up one increment or until safe and stable boot good luck Damian p.s. i have a northwood core p4 Oc'd to so join the club lol :) Pentium4 3.20ghz@ 3.7ghz 1Gb Crucial XMS PC3200CL2 1 X 80GB HDD OS 2 x 250gb NVDIA GeForce4 MX4000 Pro ASUS P4-U800-X 600w PSU 12v 1-14amp 2-15amp WinXp

You're wasting your time trying to overclock. Your problem(s) is that have a crappy video card & not enough RAM...no amount of overclocking is gonna overcome that. Plus your board simply doesn't have many overclocking options in the BIOS. BTW, you can NOT change the multiplier setting.

yep you're all right jam, the most speed i get is 3120.6 at least is something. thanks anyway. Mobo: Intel 865PERL Chipset: Intel® 865PE CPU: Intel P4 Northwood 3.0 GHZ / 800mhz FSB RAM: 512MB DDR-SDRAM / 200 Mhz Video: ATI Radeon 7000VE Series TV-Out 64MB /350 Mhz Audio: SoundM

ow I'm chinese ..I like overclock too