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About Me

  1. Thinking of doing a 128mb mod for shits'n'giggles. I know you need a certain bios to access the extra RAM on startup but is that only for the dashboard? Like once a 128mb application or game is launched does it just, see it? I ask because I want to stay with the current EvoX bios I have flashed to my Aladdin, it just works for me. I don't like Cerbios because of the lack of the classic intro and hacking one in increased boot times dramatically last time I tried it. Forgive me if this has already been answered elsewhere. Couldn't find any info on this specific question.
  2. PCB files and BIOS patcher can be found on github: https://github.com/Prehistoricman/Xbox256MB/tree/master Upgraded Xblast OS can be found on bitbucket: README and Downloads The new Xblast OS comes with a RAMTESTER variant that lets you test the stock set of 4 chips. This can be useful even for a typical 128MB mod when things go wrong and the Xbox won't boot normal Xblast. MachoNacho already did a tutorial on installing this upgrade: https://www.youtube.com/watch?v=R2hvSL30Rlg So here's a brief tutorial for installation. Tutorial Be aware this is an advanced mod and while it does grant quadruple the memory, there is a performance disadvantage. The memory clock speed must be reduced to make this memory stable (this is handled in my BIOS patcher). Tools required: Hot air station (recommended for removing stock chips) Precision soldering station Microscope suitable for soldering Flux Solder Solder wick IPA Multimeter Hardmodded Xbox Spare Xbox to be able to reflash your modchip if necessary Steps: Flash the Xblast OS 0.63 RAMTESTER 256Mbit BIOS to your modchip If your modchip has only one bank, you can still access the normal Xblast menus by pressing eject to power on the Xbox. If your modchip runs an OS BIOS (like PrometheOS, Xenium or Xblast), patch it and flash it first Remove the stock memory chips. Use hot air to desolder it - I like to place tinfoil on the board to protect the other components and plastic from the heat. Or just cut the pins if you don't care about the stock memory chips. Solder in the new memory modules Start with bank 1 in the stock memory layout. See this diagram Precisely align the module on the motherboard Solder 1 pin in a corner to anchor the module Make sure you get the orientation right. There is an arrow in the corner of the module that should align with a dot on the motherboard. That's pin 1. Solder the opposite pin Check the orientation again! I got this wrong twice :((( Solder the rest of the pins on the module Power on the Xbox to test it with the BIOS If you got it right, the LED code will indicate that bank 2 has failed. See README for LED codes. If the LED code shows bank 1 failed, there may be a short circuit or open circuit. Check your soldering. If the Xbox powers off very quickly and doesn't reboot, you have a short circuit. Check your soldering. If the Xbox reboots 3x and FRAGs, there may be a short circuit or open circuit. Check your soldering. Repeat for banks 2, 3, 4 in order. Try booting Xblast using the eject button, or any other 256MB compatible BIOS. Install the rest of the banks, using the memory test in Xblast OS's Tools menu to check if they are working. Flash a 256MB compatible BIOS X2 and X3 BIOSes are known to work and have the full 256MB usable Cerbios support is not good yet, but they are working on it. EvoX will boot, but needs additional patches to be able to use the extra memory. Do nothing with the additional memory Interposer assembly One way to do this upgrade is to buy the loose memory chips and interposer PCBs and assemble them. You need to be confident with BGA soldering. The memory chip is HY5DU573222F-28 which you can find on Alibaba and maybe other places too. The -28 is the speed bin and I don't recommend going any slower such as -33. The interposer PCB designs are on Github and I've included gerbers in the release suitable for ordering from PCBWay.
  3. Hello. I wanted to upgrade RAM on my Xbox. First I TSOPed Cromwell inside and it booted. Then I soldered 4 RAM chips from China and Xbox started reboots and showed errors: Green, Green, Green50%-Red50%. After which I desoldered new RAM, but FRAG was still there. I guessed something was wrong with TSOP chip. When I got this Xbox it had some noname modchip from 2003 which I can't even guess clone what of. Anyway, error code switched to: Green, Green, Orange50%-Red50%. Which is RAM error, I guess. Now I think I should have tested it with each new RAM chip soldered. I only left original 4 RAM chips inside right now, but it still FRAGs. What can I do to repair it?
  4. Just repaired a 1.6b that had a blown RAM bank 2. This is my first ever 1.6b I've worked on. Usually with FRAO systems there's a good reason for a RAM to die and it's usually a thick layer of once damp dust messing with things. But this time the motherboard was fairly clean. Since this is my first 1.6b I don't have a record of common faults like I do with the others. Do Hynix RAM chips commonly go bad?
  5. I found a set of 10 Samsung Ram chips and just received them the other day. Do these look correct? I was aware of the rebranded Hynix ones with the double dot but just want to be sure with these. The only thing that looks different from my motherboard chips is the number after Samsung (325) but the ones on my motherboard are 434. Part numbers are the same and they overall look almost identical besides those couple little things.
  6. Original Xbox 1.1 are 1.4 all have 128 mb of ram the Clock Cap has been removed I have 6 black and 1 cristal £80 posed £90 for the cristal plus any fees console only it will have a mod chip installed and the 8 gig hdd Some of the dvd drives have week laser possibly
  7. Hello everyone, I am creating this post to make every one aware that there is now public info about a 256MB ram mod that was created by @Prehistoricman. Tito has released a video about it here.
  8. hi yall, so i have a v1.1 that will boot into my open xenium menu no issue and xblast with my 128 ram upgrade and xblast shows all chips successful. but will not boot any other bios. I removed ram chip 3 and now boots into all bioses i throw at it. I tried 4 other ram chips that i know work and still wont boot into anything other than my ox menu and xblast. I went over mb with a fine tooth comb no tace damage, i have replaced every capacitor on the motherboard and still wil not boot a bios other than xblast with chip 3 soldered on but still shows successful in xblast ram test. any ideas?
  9. I have 128gb Ram in my xbox and usually this one can operate 720p resolution, but it doesn't work with me only work with 480i , why is that ?, any advice to solve this ?
  10. Hi, looking for someone who can mod my OG 1.0 xbox please. I've got an openxenium and the ram but would rather leave it to someone more experienced. I'm based in the North West if that helps. Any recommendations on here? Thanks
  11. I am selling the following as a bundle: One pair of heatsinks with good clamps. Two 80-wire cables. One is a Chimeric Systems cable, the other a 24" from eBay. One set of screws, case and motherboard. Four RAM chips that I removed from a dead motherboard. Condition not verified. Asking $20 which will include shipping to anywhere in the lower 48 states.
  12. I've been wondering lately about creating a small flex PCB interposer for 1.6 RAM upgrades. The QFP-100 pads are relatively long compared to the actual chip legs, it would be much easer to bend down a flex and solder it directly to the pads than it is to solder to the legs of the original chip (especially when using Hynix chips for the upgrade). I downloaded KiCad but I've never designed a PCB. I can't imagine it would be that difficult to create this flex PCB using an existing footprint placement with slightly extended pads. Has anyone else thought about this? Perhaps someone has already made something like this and I just don't know about it.
  13. Hello everyone. This is the second time I've tried a ram upgrade on 2 different consoles and neither of them works. The first was a 1.4, soldering the chips was easy (used heating gun and kapton tape), it even worked partially with Xblast but then the trouble started, the box constantly freezes after it has been running for a few minutes.. The chips were from an dead 1.4 (clock capacitor death, ram was ok) So I removed all the chips, cleaned the pads (with a magnifying glass!) and there were no bridges or anything like that left, but the problem remained. The box keeps freezing after a while, no matter how often I re-solder over it. So I tried it on my 1.6 and soldered the first ram onto it (this time only with soldering iron 250°C), no heating gun) and hey, it worked for a short time and was also recognized in Xblast. Then suddenly exactly the same problem occurred, after a while the Xbox froze and sometimes showed image errors. Like this: So I took the additional ram off, cleaned everything (pins & pads), re-soldered the original ram but the problem still remained. I also removed the original ram, cleaned it again und resoldered it but nothing... I also re-soldered the components on the back site under the ram. Now i have 2 Xboxes with exactly the same issue. After a while it just freezes. Sometimes with image errors and sometimes just freeze. Sometimes after boot and sometimes after a while. I'm going crazy! Any ideas what causes this issue? It's strange that it's the same issue and it won't go away. Used Ram for the 1.6: K4D263238F-UC50 from AliExpress. It's no hdd issue (it's not connected) or something similar, i boot into the modchip menu where it also freeze. Modchip is also 100% ok. Maybe ram death? If so, why?
  14. Intro Since the beginning of time (2004) it was known that the 1.6 was missing the unpopulated footprints for the extra 4 RAM chips and this made the upgrade impossible. I was thinking recently that if all the signals for the extra RAM chips are still available on the board, we can add RAM to the 1.6 by just connecting all the necessary signals. After the tutorial segment I'll go into why this mod works. I'll also post a video on YouTube at some point. Be warned: this is more difficult that a 1.0 - 1.4 RAM upgrade Tutorial Required items Everything mentioned in the 1.0 - 1.5 RAM upgrade tutorial: https://consolemods.org/wiki/Xbox:RAM_Upgrade 4x 90mm long mod-wire. I used enamelled wire from a transformer. ~8 hours spare time Step 1: flash the modified XBlast OS BIOS XBlast OS (as a BIOS) is super helpful in doing this install correctly. It will boot with any number of extra RAM chips and includes a test for the additional RAM. XBlast OS will not show the 128MB test option on a v1.6 Xbox, so I've gone ahead and rebuilt it from source with that check removed. Download latest XBlast OS: https://bitbucket.org/prehistoricman/lpcmod_os/src/master/releases/ At this point, I suggest booting it up and running the test. The test is under Settings > Tools > 128MB RAM test Step 2: Remove the motherboard from the Xbox Step 3: Place the new RAM chip on top of an existing chip You'll want to solder down the corner pins first to get a good mechanical bond and so that you can adjust the alignment. I do this by pushing down pins 30 and 31 and soldering them down to the chip below. Then I check the alignment of the rest of the pins. If it's bad, then the chip can be nudged into position while reflowing the two pins. Then solder the two pins opposite. Step 4: Push down the rest of the pins Except pin 28! That is the chip select pin and it is unique for each RAM chip. Leave this pin floating in the air and don't solder it yet. Pin 30 is marked on the PCB. The pins come in a kind of ‾‾\__ shape. When you push them down, the whole pin will rotate around this end -> ‾‾\__ . I like to also push down the tail ‾‾\__ <- of the pin to get more contact with the chip below. Step 5: Start soldering all the pins Very little extra solder is required. Use lots of flux. I like the tacky flux that usually comes in syringes. I also like the drag-soldering method. If there's any excess solder, you will get shorts between pins and this extra solder can be wicked away. The new pins won't naturally touch the pins below even after pushing them down. Step 6: Check for shorts and missing connections For the first pass, I like to go in with a microscope and nudge each pin (of the new chip) with a cold soldering iron tip. If the pin moves easily, it is not soldered. Also check for shorts at the same time. If you have the patience (and want it to work first try without frying your Xbox), check for shorts and continuity with a multimeter. I skipped this the first time and got bitten! Best to clean the pins and pads with IPA before checking with the multimeter. Step 7: Add the chip-select wire First, figure out which bank you are adding: Then, find the chip-select solder point: Bank 1 CS is left of the label for C4P10 Bank 2 CS is between the labels for C4R12 and C4R13 Bank 3 CS is left and above the label for C4P21 Bank 4 CS is between and above the labels C4R1 and C3R1 For banks 2 and 3, the chip-select wire can go through the hole to the left of the GPU. For bank 2, 90mm may be too short, so check the wire length and cut it as short as possible. I removed the GPU heatsink to access this hole. At this point, it should look something like this: Step 8: Reassemble and test in XBlast For a quick test, I don't bother with adding the fan, GPU heatsink, HDD, or DVD drive. The test in XBlast should look like what I first posted on reddit: If the Xbox reboots twice and FRAGs, check the bios selection (if you have one available). A normal BIOS will not accept between 1 and 3 extra RAM chips. If the Xbox reboots three of four times (and it's faster than a normal FRAG sequence) check for shorts. This happened to me. Step 9: Repeat for the other 3 chips The first one is the hardest. Step 10: Reflash with your favourite BIOS Some 1.6 BIOSs won't support 128MB. The X3 BIOS works just fine and it's the only one I tested so far.
  15. Hi all , just wanted to find out by those in the know if these ram modules are compatible for the 128 mb upgrade . I’ve installed all four , failed on all four . Touched up all joints with soldering iron , got the three reboots and Xbox wouldn’t power on , reflowed with hot air station and Xbox goes back to booting as if there’s no extra ram attached . I then replaced one of the ram modules to see if blast would detect it and still nothing . I have no issues accessing Xbox dash or Cerbios flashed Aladdin booting XBMC4Gamers .
  16. Soooooooo I started to attempt the 128mb ram mod myself today. I was using a mix of soldering iron and hot air but after painstakingly getting the first chip lined up perfectly, then soldered on, TWICE and then both times it ending up ever so slightly out of line.... I BOTTLED IT, removed the chip, cleaned up and put away all the equipment. I clearly don't have the patience or a steady enough hand to do this mod I am now looking for anyone in the UK who can do this mod for me. I will happily pay for the service. Its a 1.4 console. So no stacking needed. Anyone out there who can be my saviour???
  17. So I hadn’t done this mod before and figured Id send it. Unfortunately I set a chip kinda off center and when I tried to fix it just created more issues for myself. I sadly damaged one of the legs pads on the chip next to the power by the CPU caps. The system kinda try’s to power on but it is only by slight fan movement over the heatsink (it’s a v1.1) then it turns off. It was doing this prior so it’s not acting worse. I plan to go back and look for solder splashes/bridging. Im worried though that the damaged caused will prevent it from ever working even if I do fix and potential bridges. I stepped away for the night to get fresh eyes later. However I’m concerned I might require professional help haha
  18. Lost all my consoles when my basement flooded, anyone have a console with 128mb ram & a makemhz hdmi kit installed they are willing to part ways with? Thanks!
  19. Hello, I have bought chips for this mod. I want to ask if after putting the chips 1 by 1 it is possible to test if it is soldered well or do they all have to be soldered?
  20. I installed the Origins based image and upgraded to 128MB of RAM. Also added an SPDIF port for digital audio. If you would like it, please make an offer. Thanks guys
  21. I have this listed on ebay for $850 but would sell on Paypal or Venmo for $750 since I wouldn't have to pay fees. The CPU is upgraded to a 1.26 GHz Tualatin, but it overclocks to 1.42 GHz without issue. See ebay listing here: https://www.ebay.com/itm/335333381339
  22. The microscope is a total game changer. It's nice to be using brand new, unused RAM chips instead of having to question the chips I'm using. I think I'm confident enough now to perform this mod on all the boxes that now pass through my possession. Need to sell them though... Hopefully Facebook Marketplace can help me there!
  23. Holy shit. This was quite the process and really tested my patients. First off I installed all 4 chips at once since I didn't think Xblast could be flashed to the tsop or that it wasn't a good idea. I know better for next time. Took me about 2 hours to get all the chips installed and I thought my soldering looked really good. No bridges, but all this xbox would do is frag. After fucking with it for about 4 hours I decided I had enough and put it away thinking the box was dead. This morning I decided to have another go at it, went back over my soldering and once again thought it looked really good but the damn machine still wouldn't boot. Now, I'm really frustrated. I take out the solder braid and start wicking off the solder in attempt to remove the chips. I notice that a couple of pins are slightly bent and might be touching other pads. I proceed to straighten them out, partially lifting a pad in the process. Once I get all of that done, I'm thinking there is no way this thing is going to start now. Well it surprised the shit out of me, it booted and all 4 ram chips passed. Maybe today is the day I should go buy a lottery ticket cause I feel pretty damn lucky this actually worked. If I do it again I'll be putting xblast on the tsop.
  24. Is there a bios patch to support 128mb ram for the m8 plus bios? I have a launch xboxhdmi kit from makemhz that I'm going to install tomorrow.
  25. with new bios being developed and new menu is worth to upgrade the ram?

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Board startup date: April 23, 2017 12:45:48
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