PSP stuttering

Post by **Joose** » June 21st, 2007, 6:31

ive recently got around to getting a BIGGAR memory stick for my trusty psp. This means I can now play gaems whos iso/cso file is bigger than a gig. However, many of the games im playing that are bigger than a gig take forever to load up, and then when they do, lag like crazy. It appears that the bigger the game, the more it lags, but im not 100% on that. Any clues?

Lateralus · Post by **Lateralus** » June 21st, 2007, 8:01

You could maybe try changing the cpu speed - hold R when booting up and you can change it there. I seem to recall it solving a similar issue for me. That's about as much as I can remember off the top of my head though!

Post by **ProfHawking** » June 21st, 2007, 10:28

i dont have a PSP and dont know much about them, but it sounds like you have a slow memory stick

Post by **Dr. kitteny berk** » June 21st, 2007, 10:34

The INTARNETS wrote:Just thought I'd post a possible solution to stuttering in game ISOs on mem sticks of 4 gig...

preamble: I have a 3.03OE firmware psp btw.

I was having a similar problem with Daxter - everything was fine in game, but the cutscenes in between were REALLY jerky and choppy - not good.

After putting up with it for a bit and trying a few different ISO's to no avail I ended reading a post somewhere (can't remember where so can't link to it sorry) that mentioned formatting the mem stick in windows as fat rather than the default fat32 might fix it. I had used my psp to format the 4 gig stick when I first received it...

The procedure I followed:

1) plug in and set psp to usb mode
2) backed up everything on my card to a folder on my PC
3) formatted my mem card in windows to fat (I had a look and it was formatted with fat32 according to windows) using the command in the command prompt (ie start -> run 'cmd'):
format <drive>: /fs:fat
my drive letter is e so it would be format e: /fs:fat (if you do a help command on format you'll see the options eg format /?
4) this takes a few minutes, it popped up a message box about using 64k clusters (which is correct as fat will only allow you to format a drive with up to 65k ish clusters - which on a 4 gig stick equates to around 64k per cluster) which i ok'd and then I gave it some random volume label (eg psp)
5) copied back to the stick except the ISO dir
6) copied back the daxter ISO first
7) copied back a few other isos

This seems to have fixed my stuttering issues! Before when the video was stuttering the card access light was going nuts, now it barely flashes at all

Now... there are a few things I want to test before I would say this is a hard and fast solution, and also I would like to know what the issue is actually related to!:

1) Does formatting to fat32 with windows work as well - if so then there appears to be a potential issue with formatting the stick in the psp if it is 4 gb?
2) If it doesn't work then... mebbe the psp doesn't like a card with a large amount of clusters...
3) The solution could simply be "format the card in windows rather than on the PSP" which I am hoping is true as I would prefer to not be using 64k per cluster doesn't matter on big files, but if you have lots of small files on your psp then it is just a bit space inefficient...
4) maybe the fact that I formatted the stick then copied only 44 meg back onto it then the ISO that I had been having issues with (daxter - 1.3gig) means that everything I have tested so far is within the first 2 gig of the mem stick. I am thinking about trying to make sure the ISO is in the last 2 gig of the stick... if this makes it stutter again then it could mean the psp doesn't like accessing data past the first 2 gig of the stick...

blah blah blah... summary - this fixed it for me, but I would like to know WHY it was stuttering before!! Hope this helps someone else!

Cheers

The INTARNETS also wrote:might be a fake card problem. try put a video file on it, and test it out on your computer. if it's corrupted, then your card is no good.

Post by **FatherJack** » June 21st, 2007, 11:38

I though 2GB was the upper limit for a FAT16 partition.

bomberesque · Post by **bomberesque** » June 21st, 2007, 11:44

p p p pick up a PSP

I have a solution. If you buy teh game you get a handy disc that slots neatly into the back

Stoat · Post by **Stoat** » June 21st, 2007, 13:24

bomberesque wrote: have a solution. If you buy teh game you get a handy disc that slots neatly into the back

If you've got a 4GB card there is every incentive to run it from the stick instead. I dumped Gurumin to my stick from my legitimately purchased UMD- zero load times now and the battery lasts a lot longer.

spoodie · Post by **spoodie** » June 21st, 2007, 14:40

W-w-w-what stuttering?

too old?

Post by **deject** » June 21st, 2007, 15:16

spoodie wrote:
W-w-w-what stuttering?

too old?

bomberesque · Post by **bomberesque** » June 21st, 2007, 16:30

Stoat wrote:If you've got a 4GB card there is every incentive to run it from the stick instead. I dumped Gurumin to my stick from my legitimately purchased UMD- zero load times now and the battery lasts a lot longer.

hmmm, zero load times AND longer battery life you say. I can see how that would be an advantage, while leaving teh UMD hole empty and therefore making teh whole unit lighter (lighter = betterer of course, following hallowed MTB logic)

Post by **TezzRexx** » June 21st, 2007, 17:25

spoodie wrote:
W-w-w-what stuttering?

too old?

Pre-dates the internet! You should be ashamed!

Post by **Joose** » June 21st, 2007, 18:30

hoorays! converting to FAT has made it all happy and workey. Thank you Internets! (and Berk)

Woo Elephant Yeah · Post by **Woo Elephant Yeah** » June 22nd, 2007, 8:28

Joose wrote:hoorays! converting to FAT has made it all happy and workey. Thank you Internets! (and Berk)

Berk IS the Internets!