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[2bias]

I got hold of a site and one german fellow who bought i hell of stack with chipps and hes selling them i think cheap just 40€ plus ship

i just mailed him and he has alot of them left =)


http://unmodded.mine.nu/docs/UpgradingXboxMemory  check it out fello's

[dvl]

Looks cool, but this all seems like too much work for too little reward.  Good luck to you guys though.

[parkerbender]

does anybody know any info on the 128 mg mod? i cant find any solid info, and it sounds like you need a special mod chip, etc. oes anybody actually have real info/experience/ benchmarks about this?  can you run 128 with a flashed tsop or does it even recognize it?




ps sorry if this has already been covered in another post the friggin search never works for me with more than one word, and i didnt find anything in all of the "ram" hits

[Pele76]

I haven't done it myself but heres a summary of what I've read on this forum and other sites.

The mobo has place for 8X16MB memorychips, but only makes use of 4 of them in the original setting. The other 4 memory locations is empty. By adding 4 chips one can double the RAM on the Xbox.

There are a few ways to get hold of these chips.Sofar I've seen one german and one american site that sells new chips. Last I checked with the german site they where sold out and didn't plan on getting new ones. I don't remeber the names off the sites.
So thats
1. Buy from a reseller.

Number two is to order them from the manufacturer but as I understand it they only take orders with atleast 500 chips.
2. Start a major coopbuy and order 500 chips. (I would be real interested.)

A few people have bought dead Xbox mobos and desoldered the chips from those. That seams quite tough to do but on the other and it may be the cheapest thing to do.
3. Reuse chips from a broken mobo.

Finaly I read somewere that some Gf graphiccards (Was it Gf4 something) used the same memorychips.
4. Desolder and reuse from one or several old graphics cards.

However, the benefits from this mod can be discussed. There would be no perforance gain when playing games developed for the Xbox. These games are made to use only 64MB and will not even recognize the extra memory. If you plan on running Linux or maybe a CS server or something then you could get a performance gain with the extra memory. I guess that when decoding movies and other stuff thie extra memory also ould come in handy.


This is what I've read. Nothing is of own experience and if I've gotten anything wrong then feel free to update my knowledge on that point.

I personally wouldn't do it because of the performance gain, but simpli because it can be done and that it wasn't M$ intention from the beginning.  

[Heykrop]

To add to what Pele76 said.  There are a couple of benefits but it requires a liitle work to take adavantege of them.

1. Some emulators can take advanteage of the extra memory and will allow you to load larger roms that would ordinarily not run on the xbox.  

2. As for the original titles for the system as well as other apps that normaly do not recognize the extra memory, there is a utility that can be run on the PC that can patch a .xbe file to recognize and use the extra memory.  As to whether you will get a boost in performance would then vary by game as some are so small that the extra memory is not needed and others are still so DVD laden that they still spend a lot of time accessing the drive.  Inorder to use the tool with an original game you would first need to extract it to your system and then patch the .xbe before burning you backup.

[parkerbender]

where does a person find said tol/ what it it's name?

[thejt]

QUOTE (Heykrop @ Nov 25 2003, 02:34 PM)

To add to what Pele76 said.  There are a couple of benefits but it requires a liitle work to take adavantege of them.

LOL.. Not to mention the almost impossible task of soldering the 400 leads without bridging a one

[Pele76]

QUOTE (thejt @ Nov 25 2003, 09:53 PM)

QUOTE (Heykrop @ Nov 25 2003, 02:34 PM) To add to what Pele76 said.  There are a couple of benefits but it requires a liitle work to take adavantege of them. LOL.. Not to mention the almost impossible task of soldering the 400 leads without bridging a one

For what I've read the best solution to that is to first fasten one leg and then check the alignment. If that is correct, then fasten a leg on the other sida and check again. Now it is fixated.

Now melt a hwole lotta solder allover all of the legs. Don't mind the shorts. Just cover those bastards.

Then use desoldering braid to suck upp all the extra solder, leaving nice soldered legs without any shorts.

Finally. Check all legs and its neighbours with a multimeter so that there are no shorts left.

EDIT: As I see it the hardest part would be to desolder the chips from the dead mobo.

This post has been edited by Pele76: Nov 25 2003, 08:42 PM

[catdog2]

QUOTE

where does a person find said tol/ what it it's name?

The patch tool is called RAM DeLimit, probably in the tools section somewhere.  

QUOTE

can you run 128 with a flashed tsop or does it even recognize it?

The xecuter2 bios supports 128mg ram.

The performance improvement is minimal for retail games, even after patching (I can't notice the difference).  Yes XBMP, MAME etc can use the extra memory, but XBMP runs ok without it.  A few more mame games now load (YAY   ) - but the processor speed limits some games anyway.  I have also noticed a small increase in heat of the MCPX (motherboard temp sensor) since the upgrade, so added a heatsink.

**It is only significant to upgrade for linux use.**

All that being said, I did it successfully and am not trying to discourage you - just making you aware of the amount of effort for small increase in performance.

QUOTE

EDIT: As I see it the hardest part would be to desolder the chips from the dead mobo.

I removed the chips from a dead motherboard, and found a technique which was very easy.  Use a heat gun on the opposite  side of the motherboard to the chip being removed, once the entire area is hot enough the solder on the chip melts, and you can push it off with a pair of tweezers.  It f@#ks the motherboard - but it was dead anyway, the ram is removed with minimal heat to the chip itself and the pins are less likely to be bent compared to other methods!!  

Goodluck

[Pele76]

QUOTE (catdog2 @ Nov 26 2003, 07:34 AM)

I removed the chips from a dead motherboard, and found a technique which was very easy.  Use a heat gun on the opposite  side of the motherboard to the chip being removed, once the entire area is hot enough the solder on the chip melts, and you can push it off with a pair of tweezers.  It f@#ks the motherboard - but it was dead anyway, the ram is removed with minimal heat to the chip itself and the pins are less likely to be bent compared to other methods!!

Sound like a good method, and smelly :rolleyes:

Ahhh, I love the smell of fried PCB:s in the morning!

[XBOX Services]

Well it's interesting, i've had some questions about doing the job. The problem i'm having is finding the chips.

K4D263238D-QC50 is the part number of the chips needed. K4D263238M-QC50 is what some early XBOX's use but i've not seen this for sale.

Everything above 1.2 that i've seen uses K4D263238D-QC50 though. A newer revision is K4D263238F-QC50 but i'm told this is not going to work on XBOX. Good news is that K4D263238D-QC50 will work with the M revision, this has been proved by a number of people.

I'd consider the purchase of 500 however i'll never used that many in my normal operations. Thats 125 sets of 4, i'd take 25 sets for myself leaving the 100 sets up for grabs. I know people have tried to set this kind of stuff up before and the support never actually shows up.

So if 100 board members decide they want sets of chips, let me know.

This post has been edited by XBOX Services: Nov 26 2003, 02:16 PM

[Pele76]

I would definetly buy.

How much money do you think we are takling about here? If they are not to expensive I could maybe buy like ten sets and then sell them off myself.

[alg20]

i'd b interested!
 

[bcforn64]

I'd also be interested.

[XBOX Services]

97 more people needed