QJ.net Game Discussion - PSP, Xbox, Wii, PS3, PSP Homebrew, and PSP Guides

Skate3214 · 05-02-2006, 12:19 AM

Quote:

Originally Posted by Nytrix

can anyone else confirm that that above statement is factual?
because basically everyone is saying it's not possible..and u make it sound so simple.

Nytrix, this guy is always making things up dont believe a word he says.

**Sturmeh** · 05-02-2006, 01:58 AM

Rofl, wasnt it clearly stated the psp had a potential cpu of 333, and it confused people as to why sony didn't deliver the full power at once, they must have had things in store.

But as for overclocking to 400 etc, that would involve opening your psp, and perhaps stacking the cpu's or something, which is not very "simple" and then ya gotta double the power input, increaing the battery drain and heat.

BTW has anyone noticed when you use WIFI functions with the PSP AC addapter plugged in, the battery will automaticly stop "charging" because allowing it to continue charging could allow a meltdown of the WIFI hardware, as we already know, gets very hot...

( My plans for psp torture down the drain...

)

**SodR** · 05-02-2006, 04:42 AM

From what I get ( and think myself ) is that the setpspclockfreq is limited to 333mhz in the sdk. But I have no idea why it's limited in the psp hardware.

**1337pspm0dd3r** · 05-02-2006, 10:00 AM

You are asking about things that just cant be done.

Think about it this way, you have a car and it has one of those computer chips that restricts the HP, now you do the illegal thing and revert the controles... great more HP, but now you want more, you cant just tell the box you want more, it cant do that. you have to add better parts to the engine to make it more powerfull...

I hope you understand...

**Ibanez32** · 05-02-2006, 10:07 AM

Well If you do an engine remap and improve the valve timing you could go further.

**iball®** · 05-02-2006, 10:08 AM

Quote:

Originally Posted by 1337pspm0dd3r

You are asking about things that just cant be done.

Think about it this way, you have a car and it has one of those computer chips that restricts the HP, now you do the illegal thing and revert the controles... great more HP, but now you want more, you cant just tell the box you want more, it cant do that. you have to add better parts to the engine to make it more powerfull...

I hope you understand...

Good analogy and pretty much correct. For example, MOPAR provides three stage upgrades for an SRT-4: S1, S2, and S3. S1 is just a new PCU (computer) that's been tweaked, S2 is a new PCU as well as a new wastegate (WGA) and bigger injectors, and S3 is the motherload with bigger turbo, new PCU, new WGA, bigger injectors, etc.
There's only so much you can do with software to anything before you have to start hacking the hardware and that's where things get dicey.

**iball®** · 05-02-2006, 10:10 AM

Quote:

Originally Posted by Ibanez32

Well If you do an engine remap and improve the valve timing you could go further.

Up to a point, then if you don't know what you're doing you'll blow the engine.
Ask any Honduh wanna-be street racer.
No wait, on second thought DON'T ask them.

**Nytrix** · 05-02-2006, 10:24 AM

ok thanks for all of your help everyone..this made it very clear..

now i have my last question.

does anyone know the specs of the psp's processor?..like manufacturer, model #, ..everything.

**Art** · 05-02-2006, 01:03 PM

Yeah, Sony. Anything with Sony written on it is a custom chip.
The Emotion Engine and vector units in the PS2 are good examples.

Quote:

BTW has anyone noticed when you use WIFI functions with the PSP AC addapter plugged in, the battery will automaticly stop "charging" because allowing it to continue charging could allow a meltdown of the WIFI hardware, as we already know, gets very hot...

More like a meltdown of the power supply hardware which is barely enough to
charge the battery let alone the PSP with wifi on.

**Nytrix** · 05-03-2006, 05:44 AM

ok thanks.
does anyone have any idea if the architecture of the psp's processor is similar to any other mobile device? ..Maybe like a sony palm hangheld or something?
and this is kind of a noob question but i honestly did forget after leaving the scene for a while,
is the GPU (the gfx card..of sorts) combined in the same chip as the CPU on the psp?

Dotmeister · 05-03-2006, 06:59 AM

In here

Quote:

The PlayStation Portable's CPU is a dual-core MIPS32 R4000-based CPU (little endian), each core being globally clocked between 1 and 333 MHz. During the GDC, Sony revealed that it has currently capped the PSP's CPU clock at 222 MHz (for battery saving). The cap was previously set at the level of add-on software, not through the firmware (though the crossbar runs at 222 MHz). Unofficial software hacks can unlock 333 MHz operation, but Sony is not allowing any official programmers use 333 MHz at this time (Gran Turismo 4 Mobile was announced as the first game running at full 333Mhz speed).

**Nytrix** · 05-03-2006, 07:39 PM

thanks very much.
and gt4? i thought GTA uses 333...and GT4 isnt even out yet.

**Analog** · 05-03-2006, 09:45 PM

Here's some good info with block diagrams, cpu and gpu specs, etc... that Sony released back in 2004 in a presentation.

It seems that it is a hardware limitation indeed, to reach frequencies beyond 333/166.

Btw, if you look really closely at the pictures of the slides, you'll notice 'ghostings' of other slides not shown on the website. I'd really like to know what information was given on those in regards for a more detailed explanation on how the PSP works...interesting stuff tho.

**hàrléyg²** · 05-03-2006, 10:14 PM

psp is MIPS

**Nytrix** · 05-03-2006, 10:22 PM

thanks all..this is all very helpful information

05-02-2006, 01:58 AM	#32
Sturmeh Cool Developer Join Date: Nov 2005 Location: Australia Posts: 1,301 Trader Feedback: 0	Rofl, wasnt it clearly stated the psp had a potential cpu of 333, and it confused people as to why sony didn't deliver the full power at once, they must have had things in store. But as for overclocking to 400 etc, that would involve opening your psp, and perhaps stacking the cpu's or something, which is not very "simple" and then ya gotta double the power input, increaing the battery drain and heat. BTW has anyone noticed when you use WIFI functions with the PSP AC addapter plugged in, the battery will automaticly stop "charging" because allowing it to continue charging could allow a meltdown of the WIFI hardware, as we already know, gets very hot... ( My plans for psp torture down the drain... ) __________________ Hmm...

05-02-2006, 10:07 AM	#35
Ibanez32 Join Date: Jul 2005 Posts: 942 Trader Feedback: 0	Well If you do an engine remap and improve the valve timing you could go further. __________________ [CENTER]I think wii need a better name[/CENTER]

05-02-2006, 10:24 AM	#38
Nytrix PSP Developer Join Date: Oct 2005 Posts: 371 Trader Feedback: 0	ok thanks for all of your help everyone..this made it very clear.. now i have my last question. does anyone know the specs of the psp's processor?..like manufacturer, model #, ..everything. __________________ NytriX PSP Developer

05-03-2006, 10:14 PM	#44
hàrléyg² My name is Mud Join Date: Dec 2005 Posts: 1,538 Trader Feedback: 0	psp is MIPS __________________

05-02-2006, 04:42 AM	#33
SodR Developer Join Date: Sep 2005 Location: Sweden Posts: 941 Trader Feedback: 0	From what I get ( and think myself ) is that the setpspclockfreq is limited to 333mhz in the sdk. But I have no idea why it's limited in the psp hardware.

05-02-2006, 10:00 AM	#34
1337pspm0dd3r Join Date: Mar 2006 Posts: 52 Trader Feedback: 0	You are asking about things that just cant be done. Think about it this way, you have a car and it has one of those computer chips that restricts the HP, now you do the illegal thing and revert the controles... great more HP, but now you want more, you cant just tell the box you want more, it cant do that. you have to add better parts to the engine to make it more powerfull... I hope you understand...

05-03-2006, 05:44 AM	#40
Nytrix PSP Developer Join Date: Oct 2005 Posts: 371 Trader Feedback: 0	ok thanks. does anyone have any idea if the architecture of the psp's processor is similar to any other mobile device? ..Maybe like a sony palm hangheld or something? and this is kind of a noob question but i honestly did forget after leaving the scene for a while, is the GPU (the gfx card..of sorts) combined in the same chip as the CPU on the psp?

05-03-2006, 07:39 PM	#42
Nytrix PSP Developer Join Date: Oct 2005 Posts: 371 Trader Feedback: 0	thanks very much. and gt4? i thought GTA uses 333...and GT4 isnt even out yet.

05-03-2006, 09:45 PM	#43
Analog Join Date: Mar 2006 Location: Edmonton, Canada Posts: 74 Trader Feedback: 0	Here's some good info with block diagrams, cpu and gpu specs, etc... that Sony released back in 2004 in a presentation. It seems that it is a hardware limitation indeed, to reach frequencies beyond 333/166. Btw, if you look really closely at the pictures of the slides, you'll notice 'ghostings' of other slides not shown on the website. I'd really like to know what information was given on those in regards for a more detailed explanation on how the PSP works...interesting stuff tho.

05-03-2006, 10:22 PM	#45
Nytrix PSP Developer Join Date: Oct 2005 Posts: 371 Trader Feedback: 0	thanks all..this is all very helpful information

QJ.net Game Discussion - PSP, Xbox, Wii, PS3, PSP Homebrew, and PSP Guides

Overclocking to 400mhz...