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A little trick: get "Devulated" 2.71 up to 333mhz

Posted Aug 13, 2006 at 5:03AM EST by QJ Staff

Listed in: How-To, News Tags: Ahman, DevHook, IndianCheese, iR Shell, psp tips and tricks, XMB

Many of you may have noticed the one annoying thing about DevHook: that it freezes when you try to run firmware 2.71 at 333Mhz in the Devhook menu. Although some of you may have already figured this out, IndianCheese has posted a little trick that allows you to run emulated firmware 2.71 using DevHook at 333Mhz without it freezing just by using Ahman's legendary shell application, iR Shell. Here it is:

Run iR Shell.
Press R+Start repeatedly until the PSP is clocked up to 333mhz (Check the green numbers at the top of the screen).
Run Devhook 0.46 through iR Shell.
Choose "CPU Speed".
Choose 333/166.
Choose "Start".
The PSP will successfully boot 2.71 firmware clocked at 333mhz.

This workaround is quickest for iR Shell regulars who put their PSP on sleep in iR Shell in order to bypass the PSPs XMB when turning it on, but there is also another workaround. You can just start devhook then hold home and hit select until you get to 333mhz, which also doesn't crash the PSP.

We guess it is because the PSP doesn't like you changing it to 333Mhz when you boot up in 2.71, maybe due to a bit of Sony's security coding during 2.71 startup. Anyhow, either of these 2 methods will enable you to boot up firmware 2.71 in DevHook at 333Mhz without crashing, just use whichever method is quickest for you. Just remember - running your PSP at 333Mhz drains your battery much quicker than at 222Mhz!

Via Inidiancheese

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you guys must be retarded not to know this... WOOOTTT #1 !!!!!!!!!!!!!!!

this is the stupidest thing i have ever heard in my life. post some real news or don\'t post at all..

anyways, iRShell pwns.

lmao: \"PSP at 333Mhz drains your battery much quicker than at 222Mhz!\"... i won\'t even respond to the obviousness of that and how stupid it was..

# Theres another reason not to run at 333 — Guest 2006-08-13 06:30

333 on 2.71 will fry ur wifi, do not do this if u intend to use wifi with 2.71 emulated.

# Home + Select — Guest 2006-08-13 06:31

use Home + Select and change cpu to 333 once DevHook is running

# what ? — goonage 2006-08-13 06:34

"333 on 2.71 will fry ur wifi, do not do this if u intend to use wifi with 2.71 emulated."

how does this fry ur wifi ?

wifi works fine on running Devhook @ 2.71

# it wont — Guest 2006-08-13 06:37

nr 4. where did u read that it will fry ur wifi? changing ur cpu speed doesnt increase the speed of a wifi chip ;).

# Guest 2006-08-13 06:43

man I expected more when I saw this banner

# insa8ne2k4 2006-08-13 07:05

333 works fine with me anyways, i just run devhook from the xmb then i set it to 333 and away i go.

plus why the heck would i want to load another peice of homebrew when i can achieve 333 + wifi without irshell.

TO #8 - i did too!

and to #4 - i think you have believed a rumour. #7 says it all. there is NO way on earth you can fry your wifi/cpu on the psp as the cpu on the psp was designed to run up-to 333mhz.

i didnt mean any flaming if it seems like i did, just pointing out the facts.

# ... — Guest 2006-08-13 07:18

Next time post something newsworthy about devhook you clogs! Also this isn't a solution, it's a moronic workaround while there are such better methods available as for example Home + Select. Also setting the cpu count to 333 Mhz will not drain your battery, that's nonsense. You'll probably skimp about 15-20 minutes of a full battery.

# NOPE — Guest 2006-08-13 07:44

glad you sourced DCemu,

but this crap doesn' t even work!!!

has enyone even tried it?!

it still freezes at the sony screen

# USE DevHook_v0.46_Tetra_Pack_F or_PSP — Guest 2006-08-13 08:04

I installed the DevHook_v0.46_Tetra_Pack_F or_PSP and I have no problems booting up with 333

Just the use the included .45 utility to set the setting for .46 settingsie. usb, screenshot, clock.

I use casual firmware v2 to auto boot into 2.71 after setting it and POOF..It boots into 333..

Oh and I also installed my 2.71 using the latest ultimate Installer..

No crashes so far..

# this is dumb — Mortal Skills 2006-08-13 08:17

i was able to get 2.7 emulated with 333MHz already um o yea i cant get to play socom online on 333MHz

# Eject UMD Before Booting in 333 — Guest 2006-08-13 08:19

Try this, if it freezes when running 333, eject the UMD before booting into devhook 333, this should take you into the psp menu, then pop the UMD in and run it. works for me

# holy — Guest 2006-08-13 08:23

band-aid solutions batman.

# where — Guest 2006-08-13 09:25

where is booster & 2.80 firmware emulation kthx

# press home+select within devhook — Guest 2006-08-13 09:25

to change the CPU clockspeed without any other apps.

This is way beyond pointless and idiotic. If somebody read the README(*****ing clue morons) then you would know that HOME+SELECT from WITHIN the emulated firmware will change the clockspeed.

Start at 222mhz then press home+select and you are fine.

# dev — marcind 2006-08-13 09:29

i think Booster will relased some day devhook emulated 2.80 and everyone will be very happy, it will be big surprise from him:)

# FREEZING @ $ONY SCREEN for #11. » NOPE — insa8ne2k4 2006-08-13 09:36

#11.

if your devhook is freezing at the sony screen, eject your umd b4 you boot dh.

works for me, it just seems to be some iso's/umds dont like starting as soon as the xmb loads thru devhook.

# O_o — (Unregistered) 2006-08-13 09:55

Works for me! I've tried both ways, works just fine but i use my own method... Anyways off topic... it kinda sucks without Booster around... i was looking forward to the next update :(

# What is the benefit? — Guest 2006-08-13 10:03

I've never bothered too much about the CPU MHz settings before, figuring the app (game) will set the correct CPU speed itself (this might be totally wrong).

But what's the difference (is any) in playing a game through DevHook with different CPU speed-settings?

# hmm — Guest 2006-08-13 10:04

it's FAR less of a hastle to just use home+select...

# Yes, but why overclock? — Guest 2006-08-13 10:21

Even if it doesn't drain your battery much, and if it can't harm the PSP in any way, what's the point of overclocking to 333? I've run lots of stuff under devhook at 222 and not noticed any slowdowns. Moving stuff to flash using devhook 0.46 made the XMB and browser faster. Will someone give me a good reason to go to 333?

Or is it just something to do because it's cool?

# dev — marcind 2006-08-13 10:30

21 try to play gta.lcs with cou on 333, it makes very big diference!, the game looks much more better

# There is a much better way — Guest 2006-08-13 10:34

There is a Devhook Mod that has a safeboot mode built into it. When 2.71 firmware is booted it switches to 222mhz and then after 10 seconds after it has booted it switches back to 333mhz. Oh and by the way, I don't see this as news worthy either. This is something suited to a forum thread in a newbies section. I will be using the Modchip soon so none of this will make any difference anyway.

# Kinda pointless — Evab3vA 2006-08-13 11:46

As in DevHook 0.46 you can just select 333Mhz from within the 2.71 XMB with Home+Select.

Not that hard. :)

# wow — Guest 2006-08-13 13:12

wow

26 comments, about 10 of them reiterating what's already in the article, as if they're announcing it for the first time, and about another 10 people commenting on how they're too cool for this news item.

Very sad, people.

# WARNIGN TO WIFI USErS! — RaiderX 2006-08-13 13:22

its true, running at 333hz will seriously screw up the wifi reciever inside the PSP. Try using wifi in 33mhz for 15 min and it will feel sooo hot! Youll know what I mean, its not good.

# Guest 2006-08-13 14:39

So its only bad to overclock using wifi right? The games play and look alot better at 333hz like tekken and bleach

# Guest 2006-08-13 17:49

#28 yeah it does tend to get hot after a while when playing at 333mhz but is it really affecting the WiFi...? Oh well only time will tell... T_T

# GOOD BUT TOO CHEAP — Guest 2006-08-13 18:06

well i am a v2.71 user and they will have to kiss my ass for me to try this... no way that i am ganna kill my psp w 333hz... thats insane....

# easyer way — Guest 2006-08-13 18:21

download the devhook settings changer/ (its a hombrew that works only on 'devulated' 2.71)

start devhook in 222 and then use the reconfigure homebrew to change it to 333. works good as gold except wifi dosent work and wifi sometimes freezes psp.

# UHM WAT??? — Guest 2006-08-13 20:22

32. » easyer way

download the devhook settings changer/ (its a hombrew that works only on 'devulated' 2.71)

start devhook in 222 and then use the reconfigure homebrew to change it to 333. works good as gold except wifi dosent work and wifi sometimes freezes psp.

by kidwizz (Unregistered), at Aug 13, 2006 at 10:21PM

~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~ ~~

uhm so whats the point of using it if it freezes, damages or doesnt work well??? i mean this shows that w have to wait until a downgrader for v2.71 comes out or an upgrade to vxx.xx and use homebrew there...

there is no need to take risks...

# Is it dangerous to "overclock" the CPU to 333MHz ? Will I "brick" my PSP ? — Guest 2006-08-13 22:07

NO it will not brick/fry your PSP.

I'll quote stonecut...

"The PSP is designed to be run at 333MHz. That is, system bus, CPU, etc. all cater for the CPU to run at 333MHz. Before the actual PSP launch in Japan, Sony was having problems to provide a reasonable battery life when compared to its rival, Nintendo. Thus, Sony decided to underclock the CPU to 222MHz (bus speed of course will also be lowered) to make the battery last longer. So, setting your CPU speed to 333MHz will only drain your battery faster. There is also a rumor that the coming Jap version of GT4 (Gran Turismo 4) will actually clock the CPU at 333MHz anyway."

# WELL — Guest 2006-08-14 02:16

if it doesnt brick(kill) your psp then why not of using it????

anyways can someone give the download websites for v2.71 devulator???

thanks

# cool!!!! — Guest 2006-08-14 06:11

HEY GUYS THAT'S AWESOME!!!!!

NOW ALL THE ROMS YOU THIEVES STOLE WILL RUN FASTER THAN EVER!!!

THANKS TO THIS WEBSITE, NOW PEOPLE CAN STEAL FASTER, TOO!!!

thanks to thieves like all of you!!!,

Laidoff Programmer

# plz help me — Guest 2006-08-14 06:41

i have recently downgraded my 2.6 to 1.5 then upgraded to 2.0 and back to 1.5. i can perfectly emulated 2.71 .all i need to no is that will the cheat device work in lcs ???

ty in advance

# nice — anonymous stranger 2006-08-14 14:39

nice to see more discoveries!

# SOMEONE!!! — Guest 2006-08-14 21:44

can someone give me the websites to download stuff i that i need for this?????

THANKS!!!

# c'mon — Guest 2006-08-18 04:38

yo laid off, bite me.

and to all you dumb asses claiming all you have to do to get 333mhz is press start and home, stfu. it crashes when you do that in wifi. that is the whole point of this thread. so again... STFU!

- mu

# help — Guest 2006-08-22 00:39

i have a 1.5 version psp and have gta.cso working with devhook0.46 but the problem is it lags like a mother *****er so im trying the irshell method ..no luck

trying to change cpu to 333mhz any help???

in 1.5 i boot to devhook and "changed" the cpu clock settings to 333mhz but it freezes after the psp loading screen , back to the main menu... then i gata take out battery

when i open devhook in 1.5 and have cpu set to 222, it runs the game but laggy. If i do the same thing but dont launch the game and exit, the psp turns to 2.71 and i tried u guys' method by going to devhook (in 2.71) and doing the home+select to make 333. But when i get to memory stick, its all corrupt data...........

any help????????????/, damn im such a noob ><

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A little trick: get "Devulated" 2.71 up to 333mhz

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