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Started by RobIvy64, September 20, 2006, 09:42:37 pm
QuoteIf the PS2 would share the same clock signal for GPU and CPU you can try to use a second clockgenerator for the CPU or GPU, but you have to cut the connection between the old Masterclock.
QuoteYou can also change the 18MHZ crystal with a smaller one, so you can test the function of this crystal. If the PS2 works with a smaller crystal you can try bigger crystals then 18MHZ, but only in small steps like 18,2MHZ , 18,5MHZ , 18,7MHZ ...
Quotei might be getting a slim PS2 for christmas.. if you don't mind, i'll take a shot at it.. but, i don't know weather to do it in warranty, or out of warranty.. (is there a sticker on it?)
QuoteI'm sure it can be intercepted, and if you find a crystal that's greater than 8x the main one, you can begin overclocking.
QuoteNot able to lift the pin?
QuoteQuoteNot able to lift the pin? not if the pins are like, DIRECTLY under the chip?
Quotecould it be possible on a PAL ps2? many PAL TVs accept 50 as well as 60 hz signals... or do pal ps2's output 60 hz already?
Quote from: RobIvy64 on September 20, 2006, 09:42:37 pmHello! Here is an article I wrote a while back about my experience overclocking the PS2. I get TONS of questions from people asking me to overclock the PS2. Enjoy!___________________________________________________________________If you own a Playstation 2, i'm *positive* you have experienced extreme amounts of slowdown at one point or another. Well being the overclocking type that I am, I had to take a crack at this. I had a spare slimline PS2 that was donated for this purpose, so it was time to get started. Examining the board, I noticed several crystals (about 8 or 9) on the motherboard providing different clock signals for different functions, but one stood out to me that was right next to the CPU: ~18 MHz. This oscillator is not labelled and the speed was determined by probing the signal with an oscilloscope. The PS2's CPU runs at 294 MHz, with the GPU operating at exactly half this speed. My fear was that the GPU and CPU would share the same clock signal, but I had to test this to confirm it. 18 x 16 = 294. This was too much of a coincidence for me to pass up, it was time to heat up the soldering iron and pull out a 21 MHz crystal for installation. After desoldering the original 18 MHz crystal and installing a 21 MHz crystal I reassembled the PS2 and turned it on. My fears were confirmed; the GPU and CPU were both running overclocked; with the CPU running at 343 MHz and the GPU running at 171 MHz. Overclocking the GPU causes the screen to roll, since it it outputting a fequency greater than 60Hz which most TVs cant handle. Turns out the PS2 is impossible to overclock without causing problems with most standard TVs. The GPU takes the 18 MHz signal, multiplies it by 8 internally, and outputs the signal to the CPU. The CPU takes the GPUs internal clock speed and multiplies it by 2 internally, resulting in a 294 MHz clock speed. It wasn't successful, but I thought some of you might be curious. Cheers! -Rob
Quote from: Chizzles on April 06, 2008, 10:48:37 pmIt sounds ridiculous - yay for VGA, boo for most games running 2x faster than normal, do what everyone else does and buy a high grade line doubler or deinterlacer.
Quote from: Chizzles on April 07, 2008, 05:05:47 amSome games rely on the refresh rate for timing - if you double the refresh rate on those games it will double the speed.And yes, the XRGB2 does suck at line doubling interlaced video, that's why you buy an adaptive deinterlacer that only deinterlaces the area of the image that suffer from "toothing".
Quote from: Lechkovitz on April 06, 2008, 07:36:18 pmI always wanted to play ps2 games on PC monitors. I do actually, with the VGA cable, but as you may figure, I can only paly games that support progressive scan.
Quote from: Endymion on April 08, 2008, 06:24:44 amQuote from: Lechkovitz on April 06, 2008, 07:36:18 pmI always wanted to play ps2 games on PC monitors. I do actually, with the VGA cable, but as you may figure, I can only paly games that support progressive scan.Solve this problem, just use XPloder HDTV Player.
Quote from: l_oliveira on April 08, 2008, 01:32:35 pmEasy way (I said easy, not cheap) to play PS2 games:What's needed:Original PS2 gamesPlaystation 3 console (Needs to be eithar 20GB or 60GB of either USA or JPN. PAL work too but has no EE chip) matching the region of the Ps2 gamesPS2 linux VGA cable or hack a suitable equivalent (I use a normal PS2 component cable and an adapter built by me with a mini DB15 and the 3 RCAs for connecting the component cable) Hacking the cable is not the best idea if you plan to keep it for TV connections.Monitor which supports Sync On Green (SoG)By setting the PS3 to run on 480P on RGB mode one can run ANY PS2 game supported by the PS3 in a VGA monitor that supports Sync On Green.Sorry to change the topic but this kind of setup isn't documented anywhere I know of. I just wanted to share this. I use it to play Final Fantasy XI on a 20 GB US PS3.
Quote from: grokr989 on April 30, 2008, 10:23:25 amI don't usually frequent forums but I was wondering if I could overclock my PS2 also a few months ago. I am happy to report that using the information in this forum and a service manual for the PS2 I found online, I am succesfully able to overclock my PS2. At first I was discouraged from the results that have been posted. I have an early large SCPH-30001, which is perhaps why my results are different. Anyhow, I changed X101 to a 22.1184MHZ crystal. The exact part number is CS1022.1184MABJ-UT, whihch is manufactured by Citizen. I bought it from Newark Electronics online. The part is surface mount so it is a good replacement for the part on the board. I don't experience any screen rolling effects as others have posted. I tested the overclocking with Odin Sphere which has very noticeable slowdown during parts of the game normally. With my overclocked PS2, the game runs with no more slowdown! However, the sound also plays much faster. All the characters voices are sped up and higher pitched. It's funny to hear King Odin talking like a boy Also, the sound gets out of sync with the onscreen dialog the longer the movie sequence. Aside from that, I am still happy with the results since it allowed me to enjoy parts of the game, especially some boss fights that were annoying becasue of the slowdown before.