Hi, all I need some help or answers to some questions I have for upgrading my CPU First some history I bought a dell deminsion dexktop a few years ago have upgraded a few features Samsung 18x Internal Double-Layer DVD±RW w/lightscribe New HD from 20G to 120G Ram from 126 to 640 but now it is time to hit the CPU! Motherboard info (may be overkill) Chipset Model 845MP Brookdale Host-Hub Interface Bridge (B0-step) North Bridge Intel 82845D South Bridge 801BA LPC Interface (ICH2 B5 step) SMBus Intel Corporation 801BA/BAM SMBus Controller (ICH2/ICH2-M B5 step) @EFA0h CPU Intel Pentium 4 Cpu Socket Socket 478 [J1E1] Processor Upgrade ZIF Socket Max CPU Speed 2000 MHz System Slots 4 PCI, 1 AGP Current cpu CPU Full Name Intel Pentium 4 CPU Name Intel(R) Pentium(R) 4 CPU 1.60GHz CPU Code Name Willamette Technology 0.18µ Platform Name Socket 478 Type Original OEM processor FSB Mode QDR Platform ID 2 Microcode ID 2E Type ID 0 CPU Clock 1594.83 System Bus Clock 398.71 System Clock 99.68 Multiplier 16.00 Original Clock 1600.00 Original Bus Clock 400.00 Original System Clock 100.00 Original Multiplier 16.00 L2 Cache Speed 1594.83 MHz L2 Cache Speed Full CPU Family / Model / Stepping F / 1 / 2 Family Extended 00 Brand ID 08 HyperThreading 1 L1 T-Cache 12 KµOps L1 D-Cache 8 KB L2 Cache 256 KB Now the question I want to upgrade to NEW P4 Pentium 4 3.4GHz 3.4 Socket 478 Northwood CPU Is it possible ? do I need another heat sink will I need another fan?also will a copper wire grounded around my wrist surfise for an antistatic arm band? Thanks ahead for any replies dabreezetn PS wonderful small free software for system info http://www.gtopala.com/ New but learning fast!

The cheapest you'll spend is about $125.00 and that is assuming you get an OEM 3.4GHz while retaining your current HSF. To me that doesn't look like a good investment on a dead platform, unless you intend to hang on to the system for at least another 18-24 months after the CPU upgrade. The Secret Letter From Iraq

Thanks alot for the info I will probable hold on to this unit for a while and yes I usually purchase my upgrading parts from e-bay OEM, I have a grandson that will get this in a year os and I will get me another PC. Do you think that an additional fan and or heat sink will be needed? I have already spent a little on the upgrades over the years and it has been a good unit for all so far. Again I do really appreciate your seggustions. Sincerly dabreezetn New but learning fast!

I doubt that your old mobo supports an 800MHz FSB chip with hyperthreading. Check out my flickr stream.

The Faz also made a good point. If your Dell Dimension is a 4400, it wont support anything beyond the 400MHz (100MHz x 4) bus. If it is a 4500, it should support the 533MHz (133MHz x 4) bus clock and that pretty much limits you to the HT Northwood 3.06GHz (133x23) P4 (478) & you might as well forget the upgrade since that 533MHz Northwood cost way too much than it's actually worth. The Secret Letter From Iraq

Thanks so much for the infom I can see that you all have saved me some $. Also my PC is a 4400 So what CPU would max it out?Since I am now rynning on a 1.6ghz and would like to speed it up all I can. Again thanks for your time, patience and knowlege dabreezetn New but learning fast!

http://www.intel.com/pressroom/kits... http://www.starmicro.net/detail.asp...