PS3 Project RSX Boost: Overclock your Retail PS3 RSX Speeds (ps3 cfw only)

[Tanzu15]

The TestBench FW does also support overclocking, you just need to append e.g. "rsx_mclk=1000 rsx_nvclk=1000". However, make sure that the string doesn't get too long.

@RIP-Felix

What's the benefits of this firmware?

 

[Smugg]

You're right, I didn't see it !
https://www.psdevwiki.com/ps3/CXD5300DGB


Because date codes aren't guarantees regarding the chip you'll get. Even the month of manufacture isn't an absolute guaranty.

The limits of your PS3 depends on your RSX model. Even in the 25XX series, you can have 4 different revisions :

• CXD5300A1GB : This one can do 700 on core easily, 750 if you're lucky. As for memory (VRAM), 900 or 925. Maybe 950 at best.

• CXD5300CGB : 800 on core stable, 850 freeze after some time in game. Up to 1000MHz on memory if you're lucky (stay cautious).

• CXD5300DGB : We don't know it well, the only report say 700/1000 stable max.

• CXD5300GGB : The greatest overclockers, 850 or 900 on core. 950 is EXTREMELY rare. Up to 1000MHz on memory.

Of course, there are always exceptions due to the silicon lottery.

While later date codes give you more chances to get a good chip, this is still a lottery (a triple lottery in fact. Month ? + Chip revision ? + Silicon lottery ?).

Im running 750 - 900 on my CGB. Havent gone higher yet.

 

[Mitsu™]

Im running 750 - 900 on my CGB. Havent gone higher yet.

If 750 is fully stable after testing, you can try 800 without risks. My CGB can do 800 easily. As for VRAM, it should be able to do 950 or 975. 1000 is always a bit risky.

 

[Smugg]

If 750 is fully stable after testing, you can try 800 without risks. My CGB can do 800 easily. As for VRAM, it should be able to do 950 or 975. 1000 is always a bit risky.

I will some time this week. I got a november 2010 that is running hot, got it for 30 dollars because it was randomly freezing. Repasted and changed drive to have the same problem. No error codes saved. Installed a SSD after the 2nd drive to see if it still freezes, ill test it later ran out lf time. The november 2010 has a beefier heatsink compared to my august 2010 but the august runs 750 900 anywhere from 45c to 53c at 40 percent fan depending on how hot my room is. November shoots up to 60 at 45 percent fan

 

[Tanzu15]

I will some time this week. I got a november 2010 that is running hot, got it for 30 dollars because it was randomly freezing. Repasted and changed drive to have the same problem. No error codes saved. Installed a SSD after the 2nd drive to see if it still freezes, ill test it later ran out lf time. The november 2010 has a beefier heatsink compared to my august 2010 but the august runs 750 900 anywhere from 45c to 53c at 40 percent fan depending on how hot my room is. November shoots up to 60 at 45 percent fan

A beefier heat sink? How so?

 

[richardjohn]

@Mitsu™ Will you please make a beta9 version of 850/975 for me.my bro?my version is beta8.By the way whats the difference between beta 8 and beta 9

@Mitsu™ Will you please make a beta9 version of 850/975 for me.my bro?my version is beta8.By the way whats the difference between beta 8 and beta 9

and 850/1000 beta9 please

 

[Tanzu15]

@Mitsu™ @LuanTeles @RIP-Felix just received my 7th or 8th lost count, January 2011 PS3. 900/975 easy peasy. This one is a 120 day up time to. So a double jack pot. Low days are awesome. And it's in mint condition. Gonna try 950 next and see if I get lucky again.

 

[Smugg]

A beefier heat sink? How so?

Ill take a picture of it when i can. I have to open it up and replace the BD drive. its bad. just tried a few disk games, they all froze. installed 2 games with pkgi and both ran flawless. Crysis HD actually looks great. can it be tweaked to run 60 fps?

 

[Rossa]

I own a PS3 Slim CECH-2504B with a 1A date code and I have been running my system on 750MHz / 1000MHz for about a month without any graphical artifact issues, or game crashes. I wanted to push my PS3 system up to 800MHz core with 950MHz memory, and there starts the graphical artifact issues which happens almost instantly after the system update but it wasn't a big issue. However, trying 850MHz core with 900MHz showed big red artifacts on the screen the millisecond I booted into my XMB, and because of my quick reactions, I immediately unplugged the PS3 cable. Why is it that my PS3 is not handling 800MHz on core very well? Many other CECH-2504 models can possibly overclock even more than that, but mine's having issues already at 800MHz on core. Why?

Sounds like your console is the same as my 2502B (0C), but one step above on the core. As already mentioned, it's just silicon lottery and there are no guarantees.

The idea is that the later the console revision, the better the chances at having a high overclocking RSX; but that's all it is, a "chance". All Sony cared about was that each chip comfortably hit the retail/stock speeds, so you're always going to find chips (even in super slims if we could OC those) that will pass that test, but don't have as much headroom as other consoles with the same manufacturing date.

 

[Tanzu15]

Sounds like your console is the same as my 2502B (0C), but one step above on the core. As already mentioned, it's just silicon lottery and there are no guarantees.

The idea is that the later the console revision, the better the chances at having a high overclocking RSX; but that's all it is, a "chance". All Sony cared about was that each chip comfortably hit the retail/stock speeds, so you're always going to find chips (even in super slims if we could OC those) that will pass that test, but don't have as much headroom as other consoles with the same manufacturing date.

I have 7 or 8 of them now. All January 2011. This isn't just chance or luck. Every unit I've gotten has instantly done 850 core and 975 memory or higher. I recieved one today and 900/975 easily. I'm receiving another one tommorow. And once again. It will easily do 850 or 900 easy. January's seem to be when Sony started using overall just better chips. And it so happens to be the last month that supports version minimum 3.50 for cfw. Date codes are random and seem like silicon lottery because it's random months that you don't know. In the US I have the exact manufacture date. And buying 8 random PS3 slims that are all Jan 2011 and all happen to OC to 850 and 900, is not just silicon lottery or chance. If anything getting a bad chip in January would be wayyy more rare.

 

[LuanTeles]

@Mitsu™ @LuanTeles @RIP-Felix just received my 7th or 8th lost count, January 2011 PS3. 900/975 easy peasy. This one is a 120 day up time to. So a double jack pot. Low days are awesome. And it's in mint condition. Gonna try 950 next and see if I get lucky again.

Wait, what? Do you now have 8 PS3s? That's insane!

BTW, I remember another guy here using 950 core, am I right? It's still a shame that I mine system can only go up to 850Mhz fully stable. I can play for a few minutes at 900MHz before experiencing a random crash.

I just installed the 900 core again to see if the temperature affects when the system crashes.

 

[Tanzu15]

Wait, what? Do you now have 8 PS3s? That's insane!

BTW, I remember another guy here using 950 core, am I right? It's still a shame that I mine system can only go up to 850Mhz fully stable. I can play for a few minutes at 900MHz before experiencing a random crash.

I just installed the 900 core again to see if the temperature affects when the system crashes.

Don't know if you read my other comment. But one of my PS3s is doing 950 core fully stable no artifacts and no crashing for hours at a time. And 1000 memory. So my 950/1000 is the fastest so far. And I have 3 other ones that do 900 fully stable. And 1000 memory on one of those. 975 memory seems to be the memory speed all January chips can easily do, and 1000 being a bit more rare. And Lol yes I have 8 January 2011 slims now. But in total I have like 13 PS3 slim 25xx. I have done all this for the sake of science also I can sell one or two of these binned PS3s. And yes I've tested my 850 core PS3s and putting the fan to 80% prevented them from crashing. That last 50mhz is temperature dependent. So a delid along with a good 45% fan speed would keep it fully Stable at 900. I've tested this with one of my 850 stable slims and that was absolutely the case. If it hits 57c and up. It crashes. Staying below 56c stayed stable with zero crashing for hours.

 

[Rossa]

I have 7 or 8 of them now. All January 2011. This isn't just chance or luck. Every unit I've gotten has instantly done 850 core and 975 memory or higher. I recieved one today and 900/975 easily. I'm receiving another one tommorow. And once again. It will easily do 850 or 900 easy. January's seem to be when Sony started using overall just better chips. And it so happens to be the last month that supports version minimum 3.50 for cfw. Date codes are random and seem like silicon lottery because it's random months that you don't know. In the US I have the exact manufacture date. And buying 8 random PS3 slims that are all Jan 2011 and all happen to OC to 850 and 900, is not just silicon lottery or chance. If anything getting a bad chip in January would be wayyy more rare.

Date codes aren't completely random though right? The number is year, the letter is quarter (at least that's how it works according to the psdevwiki). So, their console being a 1A means it's 1st quarter of 2011.

All I'm saying is that the yield in chip manufacturing isn't perfect, so it's probably best to be on the cautious side when not doing so could lead to someone bricking their console. The odds are you will get a good overclocker from 2011, yes, but I still don't think it's right to make it sound like the opposite is basically impossible.

 

[Mitsu™]

Date codes aren't completely random though right? The number is year, the letter is quarter (at least that's how it works according to the psdevwiki). So, their console being a 1A means it's 1st quarter of 2011.

All I'm saying is that the yield in chip manufacturing isn't perfect, so it's probably best to be on the cautious side when not doing so could lead to someone bricking their console. The odds are you will get a good overclocker from 2011, yes, but I still don't think it's right to make it sound like the opposite is basically impossible.

As we saw previously, someone got a 25XX 1A with a CXD5300A1GB inside (almost the same chip you can find in a 21XX).
So, there is still a significant part of luck, with Sony getting rid of its old chips no matter the dates.
Odds are better, but...

 

[Rossa]

As we saw previously, someone got a 25XX 1A with a CXD5300A1GB inside (almost the same chip you can find in a 21XX).
So, there is still a significant part of luck, with Sony getting rid of its old chips no matter the dates.
Odds are better, but...

At that point I'd almost wonder if it was a replacement console from Sony's repair center or something. Doesn't feel like a 1A should be able to have that chip in it.

Which I guess brings up another risk when it comes to this stuff; case swaps could mislead you with the consoles overclocking capability. I don't know if like 21xx hardware could fit inside a 25xx case, but if it can, that's another thing to look out for if the console has been opened.

 

[Tanzu15]

Date codes aren't completely random though right? The number is year, the letter is quarter (at least that's how it works according to the psdevwiki). So, their console being a 1A means it's 1st quarter of 2011.

All I'm saying is that the yield in chip manufacturing isn't perfect, so it's probably best to be on the cautious side when not doing so could lead to someone bricking their console. The odds are you will get a good overclocker from 2011, yes, but I still don't think it's right to make it sound like the opposite is basically impossible.

The problem with date codes is, it's not an exact month but a quarter. So you'll never know what month it's from. You'd need to check the chip itself and see if it says CXD5300GGB. If it says that, then it's the silicon winners.

 

[Rossa]

The problem with date codes is, it's not an exact month but a quarter. So you'll never know what month it's from. You'd need to check the chip itself and see if it says CXD5300GGB. If it says that, then it's the silicon winners.

1A still means at least January 2011 though. That means it was made during or after the time that their silicon got better at overclocking and should follow suit, but clearly it didn't.

You've said yourself that some of your January consoles overclock worse than others, which shows that not all CXD5300GGB's are equal. There's variance there, which might be as small as you've seen or noticeably bigger, we don't really know; and that uncertainty could brick a console if it's not clearly communicated.

 

[Mitsu™]

I just installed the 900 core again to see if the temperature affects when the system crashes.

So your PS3 is still fine at 1200MHz VRAM ? No side effects ? This is awesome :0

 

[Tanzu15]

So your PS3 is still fine at 1200MHz VRAM ? No side effects ? This is awesome :0

Wait @LuanTeles is the one doing 1200? How? Cause that's gotta be the best silicon memory on a PS3 slim on the whole planet. Did he do any benchmarks to see what that extra 200 over 1000 does for games?

 

[Mitsu™]

Wait @LuanTeles is the one doing 1200? How? Cause that's gotta be the best silicon memory on a PS3 slim on the whole planet. Did he do any benchmarks to see what that extra 200 over 1000 does for games?

If my calculations are correct, taking the example of "Murder" Crysis (Crysis 3 with maxed graphical settings) once again :
- At 800/950 this game run at 18,75 FPS.
- At 800/975 the game run at 18,98 FPS. (↑ 1,227 % for 25MHz)
- At 800/1200MHz it should approximately run at 21 FPS.

Between 1000 and 1200MHz, it's almost a 10% increase in framerate if it stays linear.