trencherfield

Yeah they do. It's the one previously used for 1ghz upgrades. Few extra mods required tho. https://www.ogxbox.com/forums/index.php?/topic/1299-xbox-cpu-id/

seller I bought mine at....

Same chip BGA495 ... gotta flow it off the slot one board, then slap it on the xbox with some chewing gum Homer style!

Tested the VCC_CORE on my scruffy workbench v1.0 for you.... reads 1.682v with bulging caps that are about to go pop in my face if I don't do 'em sooner or later. So should be 1.7v standard as I suspected for coppermines and the 733mhz chip. Pics following...

Calm down, calm down.... you're gonna pop a vessel or sommet lol Yeah, that's the total cost for the 3 delivered with vat to UK. Will take a shot of the seller for you in a mo, hang on. There is 2 on ebay there now... https://www.ebay.com/itm/383487331659 Presume it's legit, but title a bit odd but does say will receive whats pictured. Different seller. Seller I used has sold out.

Just had three 1GHZ 133mhz slot 1 Piii's delivered from usa. Look mint, have to see. Need to disable speedstep too of course. Will try the cheaper units first before these when I feel like it. Don't think it's 1.45v standard Snappy.... else there would be no need to change the VCC_CORE resistor for the 1.4Ghz. I would guess around 1.7v same as these slot 1's for Coppermine. I'll measure it now for you.

Will definitely need a preheater. A hot air station will have trouble heating the board uniformly without thermal stress. The board will also sap away the heat without a preheater under it, making it harder to do the CPU. I have the gear & more and been making the xeniums/ogx360 for years and other chips, plus other smd stuff besides, but even I have not done the CPU upgrade. Yet. It's a mammoth task, there's no blagging around it, it's going to take time (a lot) & patience (a lot). Watch the other videos, computer booter etc. Sometimes he is not successful, sometimes he is. Nature of the task. I've picked up a few CPU's off ebay recently to test with in due course. It's about the best place to pick them up. You might also consider to have a P3/Tualatin PC test rig with a socket 370 board to check the CPU's first... no point soldering a duff CPU on despite what the listing states hey. Everything you need for this job, including the parts, gets very expensive very quickly

Test point.

https://youtu.be/Fq7TdN0crSY?feature=shared&t=2881 That's the video. Also can see where he tested, makes sense I suppose. Presume he used R2.4k at R2E8 to get 1.45v

I saw Maximus64 he has a video of his CPU upgrade on youtube. At one point (after his test motherboard) you will see him check his good board for the VCC_CORE with a multimeter and he got it spot on. This is plugged in with no cpu on the board. The standard voltage must be higher as the resistor value is increased to drop the VCC_CORE down to 1.45v in this instance. For your 1.75v core cpu, my guess is the resistor value will either be as it is now or lower to increase the VCC_CORE up to 1.75v. The equation is there, I haven't worked the equation for 1.75v though, plus I haven't checked what the standard VCC_CORE is either, so that's as much as I can offer unless someone else cares to chime in with the values for you. Standard voltage is prolly on the net somewhere or you can measure it with a meter, again the points to measure are prolly on the net somewhere too.

For a 1.2 to 1.4 board as Maximus64 said... "I'm in process of upgrade my CPU and after replacing R2E8 to 1.5K, the output voltage still measure around ~1.55V instead of 1.45V that the CPU want. I think the resistor value feedback network mention the the manual is wrong. SC2688 datasheet mention the reference voltage is 1.25V So base on my calculation with 1.5K resistor: (1.25v)(1.5K + 379)/(1.5K) = 1.566V This is too much for the CPU since spec is 1.45V. If we want 1.45V output I think the resistor should be ~2.4K (2368 ohm to be exact)" There's the equation in bold to work out to the SC2688 (look at the attached pdf as it provides the VCC_CORE). Maybe email Lukas and ask? I have not looked into it any further myself yet. Depends on which board you are upgrading of course too, so need to know that. SC2688.PDF

When I used to sell an Xbox on ebay years ago, I waited for their £1 max fee listings or the 80% off seller fee listing as they call it too. Then use that and list as buy it now. (Don't let it renew in 30 days though if unsold as you'll pay full fees then) - set a fair price and it will often sell. Presume they have the same offer stateside as well? If not then that's a rough call.

You going to need to match up the CPU core voltage. You can measure it after changing the resistors in the guide, if needed. There has been some conjecture over the values needed regarding this. Depends on the processor of course too. Yours at 1.75v means it's probably already about that standard? Whatever the 733mhz standard cpu runs at. I've not checked the value yet. https://github.com/N64-Freak/Xbox-CPU-interposer/issues/1 Think 'Computer Booter' on youtube mentioned about this too somewhere. Probably best to measure the standard voltage and then depending on which board revision work out the resistor values you need, fit and meter read them until you get to 1.75v for your CPU.

Just keep the title simple, list the hardware only. In the details again, refrain from anything but hardware spec, list it like a PC. Don't mention about dashes or software or anything. Buyers will see its a Halo edition etc. Set the price for the spec and what you want for it. You can show extras in the pics like the dash etc, buyers will look. Short and sweet. You'll get no bother then. Sometimes you can add a disclaimer in the details (no infringement/games etc), but I wouldn't bother.

I would say with cooling/cpu gpu load/temps being so variable, you will just have to try a basic ratio to get started and see how it performs and go from there.

Quite probably, the simple spi2par2019 onto a Pro Micro alone, connected to the SMB, without the Openxenium SPi connected, will still show the in game temps, game playing and fan. I don't think the Xenium Spi is required there. You can probably thereby, as I have done for an OLED, meddle with the code in Arduino ISE and just utilise that with a Pro Micro quite simply and pull in the registers you want to display. Looks like an easy starting point. -------------------------- Looks like the Aladdin XT LCD conversion just runs as a Smartxx LCD, so will probably go blank in game like the others. https://github.com/Ryzee119/AladdinLCD https://bitbucket.org/psyko_chewbacca/workspace/repositories/

I believe psychochewbaca did release an Aladdin XT CPLD redo that can work solely as an LCD chip only, requires a TSOP flash on the motherboard also as the Aladdin takes up the LPC data bus for the LCD. Whether that LCD screen output includes the temps, it may well do. Just need to reprogram the Lattice CPLD and make whatever connections etc was in the guide. It will be in his repo with details.

Not that I am aware of unfortunately. It was Ryzee's code where he specifically added the SMB data read from SDA/SCL in the spi2par2019.

You can do it with just the pro micro as well.

An openxenium with the Spi2par2019 fitted to an LCD can do this. https://github.com/Ryzee119/spi2par2019

Was a guy on here did a really nice LED set for the juwel etc, programmed, then he never came back after the video I thought it looked great. edit; found it... https://www.ogxbox.com/forums/index.php?/topic/4963-designing-and-3d-printing-a-custom-faceplate/#comment-47570 watch the vid

The other drives firmwares and tools in case anyone finds the thread in future... sdg605bv2.rar Mediatek-MtkWinFlash_1.5.3.3.zip Mediatek-MtkFlash_1.55.zip Samsung_SDG-605_firmware.zip SS_Dumper_FW_605b.zip Philips_firmware.rar HitachiLG8050.rar

Here is the fixed flasher. 8050L_FW_Flasher_FIXED.rar