Upgrading system CPU to P4

[MaNiAc-Uk]

CPU Upgrade how to

Written By:MaNiAc-Uk

Developed By MaNiAc-Uk, Jammaboards, TheAvatar and IPPEI

Chips Tested and working so far:
Pentium 4

P4 2.2Ghz 512 socket 478 400FSB Northwood core chip
P4 2.4Ghz 512 socket 478 400FSB Northwood core chip
P4 2.5Ghz 512 socket 478 400FSB Northwood core chip
P4 2.6Ghz 512 socket 478 400FSB Northwood core chip
P4 2.8Ghz 512 socket 478 400FSB Northwood core chip

Disclaimer: we at the xxxx-in-1 project cannot be held responsible for any damage done to your system. Modifications to the hardware will void the systems 30 day warranty.

This modification will let higher memory / processor powered games to run at their true speed and fix games that were already on the list that were to lagged to play Narc, Mortal Kombat II and NBA jam .

This mod is intended for advanced computer users who understand removal and installing of CPU’s to computer systems.

Install time 15 mins

Right let’s get started

Tools and components needed:

1 x Screw Driver
1 x Compatible CPU
1 x Thermal Grease
1 x Thermal Grease Cleaner

Tools pictured below.


Now you will need to disconnect all connections to your pcb

First of all make sure all power is disconnected from the machine.

Now disconnect the 20pin plug from the board as pictured below.



Then disconnect the additional 4 and 5 button plug


Before removal:


After removal:

Right now disconnect the jamma connection as pictured below.


Before removal:


After removal:

Now remove board from machine and take it to a worktop make sure it’s a dust free environment.

Before removing the top board from the system you will need to unplug all the top board conections i have pictured them all below there are 7 in total please make notes of were each one goes i have pictured below them plugged in and removed.



Before removal:



After Removal:

Now remove the ide cable and the 7 spacer leg screws from the top board you can now remove the top board safely.



Top Board removed:

Now unplug the heat sink fan from the pcb



Then press down on the heat sink release catches i used a screw driver to leaver them out.

Warning: You must be careful when doing this not to apply too much presure can lead to cracking the mother board, press down and leaver out the catch with a screwdriver.



Remove heat sink

Push down and outwards on the cpu leaver now remove old cpu clean the heat sink remove all old grease.



Fig 1

Fig 2

Fig 3

Now install new cpu be careful not to touch the pins on the bottom the triangle on the chip will match to the triangle on the cpu holder when you have inserted the chip close the leaver to lock chip in place as show in fig 1/2/3 then us the Thermal Grease put a thin layer on the chip and spread it. Right now reinstall heat sink and reassemble all that you have removed power up and jobs done.

Now MK2 NBA Jam work Narc work perfectly will increes the perfomace of games on the system and will also alow you to add games that wouldent have run nice under the celeron 1.7 chip ie killer instinct 1 and 2 mk 1 mk 3.

if you have a chip tested thats not listed let us know so we can add it to the list.

kind regards the development team.
_________________
Title:Website Admin / Development Team
Arcade Machines:
1991 Electrocoin NEO GEO MVS
1995 Sega STV Jamma 26"
2000 Sega Naomi Univeral
Customized Hardware Mods: Added 1gb of ram P4 2.8Ghz 512 400 Bus

[trailbreaker]

Where is a good place to buy the P4 2.8Ghz 512 400 Bus chip at? I bought the xxx-in-1 upgrade at jammaboards and would like to upgrade my performance.

Thnx

[narf]

ebay usually

takes a lot of searching i find to get them cheap

[samsonfred]

hello
the p4 with 800 bus is ok with your technic ?
thanks

[MaNiAc-Uk]

no its got to be 400 bus speed as that's the limits of the board.
_________________
Title:Website Admin / Development Team
Arcade Machines:
1991 Electrocoin NEO GEO MVS
1995 Sega STV Jamma 26"
2000 Sega Naomi Univeral
Customized Hardware Mods: Added 1gb of ram P4 2.8Ghz 512 400 Bus

[samsonfred]

ok
is there a difference performance between the p4 2,2 and 2,8 ?
for the price, yes..... but for the game, the P4 2,2 is OK ?
thanks.

[TheAvatar]

a 2.2 you will still get lag in games like Narc , nba jam, Mortal Kombat, Killer Instinct and some of the late 90's games.

[MaNiAc-Uk]

the faster the chip the more stuff will run right.
_________________
Title:Website Admin / Development Team
Arcade Machines:
1991 Electrocoin NEO GEO MVS
1995 Sega STV Jamma 26"
2000 Sega Naomi Univeral
Customized Hardware Mods: Added 1gb of ram P4 2.8Ghz 512 400 Bus

[AndyX]

[purplec]

you will need a bigger heatsink something like an intel prescott fan to cool the chip but that means you will have to raise the top board to fit the new fan in. The 2.8 512 i have installed is good and i am very happy with it. So in the end its upoto you the 2.8 512 stutters every now and then but it works very well. Let us know what you do and how you got on every little helps.

cheers

[MaNiAc-Uk]

[AndyX]

I've upgraded my xxxx in 1 cpu to a P4 2.8Ghz 512 400 SL7EY and changed the 256meg memory stick to a 1 GB stick.

I also went into the bios to change the shared memory to 64MB. Everything seem to be working great apart from Mortal Kombat 2 now seems to be too fast. Which makes it very difficult to play in one player mode.

Where I really noticed it was when I died a screen came up asking if I want to insert coins to continue. That counts down from 10 super fast probably in 3 seconds.

Is there anything I can do to get it to play at the correct speed?

Thanks.

[worldarcade]

[AndyX]

[MaNiAc-Uk]

well it runs right compared to the 1.7 were the game was way too lagged to play lol

just tested it on both chip sets and its working fine on my machine right back to editing lol
_________________
Title:Website Admin / Development Team
Arcade Machines:
1991 Electrocoin NEO GEO MVS
1995 Sega STV Jamma 26"
2000 Sega Naomi Univeral
Customized Hardware Mods: Added 1gb of ram P4 2.8Ghz 512 400 Bus