Ratchet & clank 1 freezing randomly during cut scenes?

[RandQalan]

All I can say is try it out fresh my version is patched to let HDloader work and locks up with OPL and to lazy to re rip it right now

[fresh]

A ppf patch can reversed in seconds...


Have a nice day!

[Bat Rastard]

I thought I read somewhere about a limitation that UDMA 5 and 6 are redundant on the PS2. I used to set all my games to UDMA 6 until I read about this limitation, but now I just leave them at UDMA 4 unless a game needs a slower mode for compatibility. And I see no difference in UDMA modes above 4 for IDE drives. Keep in mind that UDMA 5 and 6 for old school IDE hard drives were mostly a sales gimmick created by Maxtor/Seagate to sell more drives. For years, their drives touted ATA-133 and ATA-166 while drives by their competition didn't because old school IDE hard drives rarely even reached those sustained speeds on the PC until SATA and PCIe came along and matured.

[SP193]

I thought I read somewhere about a limitation that UDMA 5 and 6 are redundant on the PS2. I used to set all my games to UDMA 6 until I read about this limitation, but now I just leave them at UDMA 4 unless a game needs a slower mode for compatibility. And I see no difference in UDMA modes above 4 for IDE drives. Keep in mind that UDMA 5 and 6 for old school IDE hard drives were mostly a sales gimmick created by Maxtor/Seagate to sell more drives. For years, their drives touted ATA-133 and ATA-166 while drives by their competition didn't because old school IDE hard drives rarely even reached those sustained speeds on the PC until SATA and PCIe came along and matured.

UDMA mode 5 = ATA100, and UDMA mode 6 = ATA133.

Yes, few drives could saturate a ATA-100 bus, and even fewer of them even crossed the 100MB/s mark sufficiently to be considered true ATA-133 drives.
(Not to mention that only a handful of manufacturers supported ATA-133/UDMA mode 6, and not all of them made devices that could saturate the ATA-133 busses).

Although, I think that most drives that were designed and manufactured towards the end of the IDE era could more or less saturate the ATA-100 bus...

The PS2 only has a ATA-66/UDMA mode 4 compatible controller. Maybe that controller can be programmed to support UDMA mode 5 and 6, but it probably isn't feasible for the following reasons:
1. The IDE cable used, in at least the SCPH-20400 HDD unit which I have, doesn't even seem to be a 80-line cable. Hence it might be possible that the IDE setup the PS2 has might not even support UDMA mode 4....
2. The IOP is too slow and has too little RAM. Even if you have a ultra-fast bus attached to it, the throughput will be affected by the IOP's slow speed and lack of RAM (Large DMA transfers are not possible).
3. I don't believe that anyone actually knows how to set the controller to communicate with the HDD at UDMA mode 5 and 6 (The Sony drivers only support up to UDMA mode 4). Otherwise, it would be a really nice fix to add to the ATAD driver within the PS2SDK.

[kadorna2]

UDMA mode 5 = ATA100, and UDMA mode 6 = ATA133.

Yes, few drives could saturate a ATA-100 bus, and even fewer of them even crossed the 100MB/s mark sufficiently to be considered true ATA-133 drives.
(Not to mention that only a handful of manufacturers supported ATA-133/UDMA mode 6, and not all of them made devices that could saturate the ATA-133 busses).

Although, I think that most drives that were designed and manufactured towards the end of the IDE era could more or less saturate the ATA-100 bus...

The PS2 only has a ATA-66/UDMA mode 4 compatible controller. Maybe that controller can be programmed to support UDMA mode 5 and 6, but it probably isn't feasible for the following reasons:
1. The IDE cable used, in at least the SCPH-20400 HDD unit which I have, doesn't even seem to be a 80-line cable. Hence it might be possible that the IDE setup the PS2 has might not even support UDMA mode 4....
2. The IOP is too slow and has too little RAM. Even if you have a ultra-fast bus attached to it, the throughput will be affected by the IOP's slow speed and lack of RAM (Large DMA transfers are not possible).
3. I don't believe that anyone actually knows how to set the controller to communicate with the HDD at UDMA mode 5 and 6 (The Sony drivers only support up to UDMA mode 4). Otherwise, it would be a really nice fix to add to the ATAD driver within the PS2SDK.

when i configure my drive to use either UDMA 5 or 6 my ps2 locks up :/

[fresh]

Had two freezes with non switch set.
Currently trying with alternative core (switch one).

[Bat Rastard]

UDMA mode 5 = ATA100, and UDMA mode 6 = ATA133

My bad. I keep confusing these two because of the first time I benched a RAID-0 array. And bottlenecks suck - gotta motherboard behind me that has on-board Gigabit LAN on the PCI bus. Way to fail, Asus ...

[fresh]

It seems [mode 2] is the key for no freezes via ethernet until now...