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    • Dreygor wrote:

      When you say 3.3v .. is that exactly 3.3vdc or 3.4vdc ? Does it need to be more or less .. what is the ideal voltage? How much does the 5vdc affect any of this and what setting is ideal?
      A proper JVS Compliant PSU will allow for adjustments on both 5V and on 3.3V (12V is non-adjustable but it's irrelevant because it's only used for the cooling fans).

      Here is what you need to do for the most accurate voltage setup:

      take the top case off of your DIMM board and find ground and VCC points on some of the 3.3V chips and the 5V chips.

      then, while measuring the voltages on these points adjust your PSU up or down until the 3.3V point = 3.31V and the 5V point you found = 5.01V

      This will give you the most accurate PSU adjustment possible. When You suspect voltage issues you should ALWAYS measure from one of the ICs that is actually utilizing that voltage, because ultimately that's the only thing that matters. on a NAOMI this should be on the DIMM board because it's the furthest removed from the power source.

      for fun you can go back and measure the voltage at the power connector and you'll likely see 3.4 and 5.1V respectively. There can be quite a bit of power drop between the power connector and the ICs that actually need it.
      "Information wants to be free"
      VOOT | RFM | Kraylix V3 | FiF Jr. | KI2 | UMK3 | E29 | E29| TOTD | DDR
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    • Dreygor wrote:

      Ok cool .. so thats for the JVS. Which i power using a second power supply that doesnt have 3.3vdc.

      What about requirements for power for the Naomi itself?
      What do you mean power using a second power supply ? Can you show a diagram / picture ?

      The NAOMI adheres to the JVS spec so the JVS spec gives the numbers.

      • +5.0V, ±5%, 10A
      • +3.3V,±5%, 12A
      • +12V,±10%, 2A

      The future of ST-V rests upon our work and your work
    • I missed that 2 PSU bit... You should definitely avoid doing that.

      If you DO use two two separate power supplies then
      1. you MUST tie the grounds together in some way

      2. you MUST NOT tie any of the 5V 3.3V or 12V lines together in anyway.

      chances are the ground on your serial cable is tying the grounds together for you but that's not ideal.
      There should be a 3rd, smaller, output connector on the SUN JVS PSUs and that's what you should be using to power your IO board and other accessories.
      "Information wants to be free"
      VOOT | RFM | Kraylix V3 | FiF Jr. | KI2 | UMK3 | E29 | E29| TOTD | DDR
      Follow my projects on Instagram: instagram.com/twistedchu

      Buy my 3D Printed Parts: bit-district.com
    • rtw wrote:

      What do you mean power using a second power supply ? Can you show a diagram / picture ?
      The NAOMI adheres to the JVS spec so the JVS spec gives the numbers.
      Yep I can do that .. but later. Basically I am powering the JVS through the JAMMA harness from a standard power supply and I am using the Sun power supply as a dedicated power supply to the Naomi. Not using the power connector from the JVS to the Naomi at all.

      Once again .. I am not having any real issues running the games .. except Rumble fish 1 and Samurai Shodown, and now sure whats going on there. but I was wanting to dig into this for information purposes and see what the real issues are.

      So going by that manual we are looking at needing ..

      3.3vdc plus or minus 0.165vdc at 12A
      5.0vdc plus or minus 0.25vdc at 10A
      12.0vdc plus or minus 1.2vdc at 2A

      to the Naomi itself.

      On the JVS using a standard power supply fed in from the JAMMA connector I only really need

      5.0vdc plus or minus 0.25vdc at 10A
      12.0vdc plus or minus 1.2vdc at 2A

      ...check
      -My Stuff-
      Namco Sys 11 (Tek1&2 Ver.B, SE Ver.2 )
      Namco Sys 12 (Ehrgeiz, Tek3, TekTT, SC)
      Namco Sys 246 (Tek4, SC 2, some Gundam Games)
      Namco Sys 256 (Tek5 DR, more Gundam games)

      Sega Showcase (TTX2 Multi)
      NeoGeo (161in1)
      Burgertime (Dedicated)
      Capcom Big Blue (HyerSpin)
      Namco cab (2x6 Multi)
      Dynamo HS-5 (Taito F3 Bust-A-Move Again)
      Atomiswave (Ranger Mission)
      Atomiswave (Naomi2 NetBoot)
      Area 51 (Dedicated)
      Z Back (Empty)
      Space Invaders Cocktail (Empty)
      Capt America and The Avengers (Dedicated)
    • New

      @rtw

      Here is a quick sketch of how I have it wired. I went with a second power supply to take the load off the Naomi itself. Sorry for the size but I didn't want to shrink it down.

      -My Stuff-
      Namco Sys 11 (Tek1&2 Ver.B, SE Ver.2 )
      Namco Sys 12 (Ehrgeiz, Tek3, TekTT, SC)
      Namco Sys 246 (Tek4, SC 2, some Gundam Games)
      Namco Sys 256 (Tek5 DR, more Gundam games)

      Sega Showcase (TTX2 Multi)
      NeoGeo (161in1)
      Burgertime (Dedicated)
      Capcom Big Blue (HyerSpin)
      Namco cab (2x6 Multi)
      Dynamo HS-5 (Taito F3 Bust-A-Move Again)
      Atomiswave (Ranger Mission)
      Atomiswave (Naomi2 NetBoot)
      Area 51 (Dedicated)
      Z Back (Empty)
      Space Invaders Cocktail (Empty)
      Capt America and The Avengers (Dedicated)
    • New

      @Dreygor looks good, I would have tied together ground from the two PSUs explicitly to avoid any ground loops.

      On a sidenote I just tried AW Samurai Shodown 6 on my NAOMI2, no issues.

      Make sure you use no more than 512 MiB of memory and test the memory in the DIMM TEST section of SETUP.
      The future of ST-V rests upon our work and your work
    • New

      Are you able to play Rumble Fish 1 ?
      -My Stuff-
      Namco Sys 11 (Tek1&2 Ver.B, SE Ver.2 )
      Namco Sys 12 (Ehrgeiz, Tek3, TekTT, SC)
      Namco Sys 246 (Tek4, SC 2, some Gundam Games)
      Namco Sys 256 (Tek5 DR, more Gundam games)

      Sega Showcase (TTX2 Multi)
      NeoGeo (161in1)
      Burgertime (Dedicated)
      Capcom Big Blue (HyerSpin)
      Namco cab (2x6 Multi)
      Dynamo HS-5 (Taito F3 Bust-A-Move Again)
      Atomiswave (Ranger Mission)
      Atomiswave (Naomi2 NetBoot)
      Area 51 (Dedicated)
      Z Back (Empty)
      Space Invaders Cocktail (Empty)
      Capt America and The Avengers (Dedicated)
    • New

      emn178.github.io/online-tools/crc32_checksum.html

      says that my version matches .. hrmmm


      -My Stuff-
      Namco Sys 11 (Tek1&2 Ver.B, SE Ver.2 )
      Namco Sys 12 (Ehrgeiz, Tek3, TekTT, SC)
      Namco Sys 246 (Tek4, SC 2, some Gundam Games)
      Namco Sys 256 (Tek5 DR, more Gundam games)

      Sega Showcase (TTX2 Multi)
      NeoGeo (161in1)
      Burgertime (Dedicated)
      Capcom Big Blue (HyerSpin)
      Namco cab (2x6 Multi)
      Dynamo HS-5 (Taito F3 Bust-A-Move Again)
      Atomiswave (Ranger Mission)
      Atomiswave (Naomi2 NetBoot)
      Area 51 (Dedicated)
      Z Back (Empty)
      Space Invaders Cocktail (Empty)
      Capt America and The Avengers (Dedicated)
    • New

      Dreygor wrote:

      So what makes the AW conversions so different from the Naomi games that causes the conversions to stall out like that ?
      I'd imagine it may be because of different RAM ICs used in AW and NAOMI ?
      unlikely its related to main RAM, as SH4 SDRAM controller configured by BIOS, and games doesn't touch it.
      but in theory might be because of GPU RAM controller configuration.

      on quick look I see NAOMI games initialize PVR2's SDRAM_CFG (0x005F80A8) with 0x15d1c955, while AW games set it to 0x15d1c951
      the difference is "bit [3:2] = Write to Pre-charge period. Specify the number of clock cycles - 1. (default = 0x1)", which is less in AW games so it probably uses faster RAM ICs.
    • New

      MetalliC wrote:

      Dreygor wrote:

      So what makes the AW conversions so different from the Naomi games that causes the conversions to stall out like that ?
      I'd imagine it may be because of different RAM ICs used in AW and NAOMI ?unlikely its related to main RAM, as SH4 SDRAM controller configured by BIOS, and games doesn't touch it.
      but in theory might be because of GPU RAM controller configuration.

      on quick look I see NAOMI games initialize PVR2's SDRAM_CFG (0x005F80A8) with 0x15d1c955, while AW games set it to 0x15d1c951
      the difference is "bit [3:2] = Write to Pre-charge period. Specify the number of clock cycles - 1. (default = 0x1)", which is less in AW games so it probably uses faster RAM ICs.
      Thanks for info @MetalliC. For me and most people it works well with our Naomi 1 or 2 and a normal JVS. Do you think that changing that write to 5F80a8 in the conversions would increase compatibility?
      * Arcade-projects, the site where you get the most of your arcade games.
      * If you want Drama go to Neo-Geo forum ---Darksoft
    • New

      Darksoft wrote:

      Do you think that changing that write to 5F80a8 in the conversions would increase compatibility?
      in theory yes, it may explain why AW conversions more sensitive to power supply voltages.

      there is also other timings related configuration registers - G1 ROM/SRAM/Cart access delays, G2 bus timeout values, Maple DMA timeout, which may be different in N/AW and affect game behavior too.
    • New

      Darksoft wrote:

      Thanks for info @MetalliC. For me and most people it works well with our Naomi 1 or 2 and a normal JVS. Do you think that changing that write to 5F80a8 in the conversions would increase compatibility?
      Is this something that is currently set the same in all of the AW conversions? So if it corrects the issues it would need to be fixed in all of them?
      -My Stuff-
      Namco Sys 11 (Tek1&2 Ver.B, SE Ver.2 )
      Namco Sys 12 (Ehrgeiz, Tek3, TekTT, SC)
      Namco Sys 246 (Tek4, SC 2, some Gundam Games)
      Namco Sys 256 (Tek5 DR, more Gundam games)

      Sega Showcase (TTX2 Multi)
      NeoGeo (161in1)
      Burgertime (Dedicated)
      Capcom Big Blue (HyerSpin)
      Namco cab (2x6 Multi)
      Dynamo HS-5 (Taito F3 Bust-A-Move Again)
      Atomiswave (Ranger Mission)
      Atomiswave (Naomi2 NetBoot)
      Area 51 (Dedicated)
      Z Back (Empty)
      Space Invaders Cocktail (Empty)
      Capt America and The Avengers (Dedicated)
    • New

      OK I figured out something that apparently is very important to all of this. I decided to over everything and check all of the voltages coming from both power supplies. Everything off the Sun power supply was fine but when I started checking my secondary power supply the voltages were low. Like around 4.6VDC and 11.8VDC. So I adjusted them up to 5.2VDC and well since ya can't adjust the 12VDC it is what it is. However now the US Sega/Capcom JVS is now getting the voltage it needs.

      And...









      All booted on the first try on a Naomi 2 and it's consistant. So in addition to the voltages on your Naomis you may want to double check the actual voltage to the JVS itself.
      -My Stuff-
      Namco Sys 11 (Tek1&2 Ver.B, SE Ver.2 )
      Namco Sys 12 (Ehrgeiz, Tek3, TekTT, SC)
      Namco Sys 246 (Tek4, SC 2, some Gundam Games)
      Namco Sys 256 (Tek5 DR, more Gundam games)

      Sega Showcase (TTX2 Multi)
      NeoGeo (161in1)
      Burgertime (Dedicated)
      Capcom Big Blue (HyerSpin)
      Namco cab (2x6 Multi)
      Dynamo HS-5 (Taito F3 Bust-A-Move Again)
      Atomiswave (Ranger Mission)
      Atomiswave (Naomi2 NetBoot)
      Area 51 (Dedicated)
      Z Back (Empty)
      Space Invaders Cocktail (Empty)
      Capt America and The Avengers (Dedicated)
    • New

      OK I went and did a little more testing just to make sure everything was running good.

      Figured since it is a Naomi 2 I should check Virtual Fighter 4 Final Tuned ver B (well that's a mouth full)



      ..and then check the largest game available. .. Melty Blood Actress Again. One note I need to add here is that v6 would not load. I had to use v1 and it worked just fine.

      -My Stuff-
      Namco Sys 11 (Tek1&2 Ver.B, SE Ver.2 )
      Namco Sys 12 (Ehrgeiz, Tek3, TekTT, SC)
      Namco Sys 246 (Tek4, SC 2, some Gundam Games)
      Namco Sys 256 (Tek5 DR, more Gundam games)

      Sega Showcase (TTX2 Multi)
      NeoGeo (161in1)
      Burgertime (Dedicated)
      Capcom Big Blue (HyerSpin)
      Namco cab (2x6 Multi)
      Dynamo HS-5 (Taito F3 Bust-A-Move Again)
      Atomiswave (Ranger Mission)
      Atomiswave (Naomi2 NetBoot)
      Area 51 (Dedicated)
      Z Back (Empty)
      Space Invaders Cocktail (Empty)
      Capt America and The Avengers (Dedicated)
    • New

      Dreygor wrote:

      OK I figured out something that apparently is very important to all of this. I decided to over everything and check all of the voltages coming from both power supplies. Everything off the Sun power supply was fine but when I started checking my secondary power supply the voltages were low. Like around 4.6VDC and 11.8VDC. So I adjusted them up to 5.2VDC and well since ya can't adjust the 12VDC it is what it is. However now the US Sega/Capcom JVS is now getting the voltage it needs.

      And...







      All booted on the first try on a Naomi 2 and it's consistant. So in addition to the voltages on your Naomis you may want to double check the actual voltage to the JVS itself.
      Yeah man, it's them voltages. The SUN PSU is the business when it comes to running Naomi for sure.
      It's almost the perfect option if you can find one that's not wrecked.

      Oh and P.S... That AtomisWave cab tho... :o
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