o350 env chip locations - Printable Version

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+--- Thread: o350 env chip locations (/thread-3424.html)

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o350 env chip locations - vvuk - 02-28-2022

I swear I saw an image of this somewhere, but can't find it -- does anyone have the o350 mainboard env chip locations mapped out, or do I have to go hunting?

I've got an o350 + IP59 cbrick that's reporting bogus temps and a bogus 12V voltage; says 5.813V on the 12V rail both powered off and powered on!  12V #2 reports 0 and 12V respectively as I'd expect.  (Temps are all at 3C except for one 77C, all of which is totally wrong.)

Relatedly, does anyone know where 12V (#1) and 12V #2 come from?  The fact that it's showing 5.813 powered off makes me doubtful the supply is an issue, but I'd like to measure at least.

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RE: o350 env chip locations - Raion - 02-28-2022

The voltage reading being off sounds to me like a bad vrm.

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RE: o350 env chip locations - weblacky - 02-28-2022

I need to know these locations myself, I've never seen an image other than a Fuel mainboard for DS1780 locations.

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RE: o350 env chip locations - jan-jaap - 02-28-2022

+12V comes straight from the PSU. Just exchange PSUs and see if the problem move with the PSU or stays with the system. I bet you it's the env chip in the system. It's likely on the mainboard somewhere on the area underneath the chassis fans.

The PSU is a rebadged Delta DPS-500EB. It provides:

• 15V BIAS @ 50mA
  
• -12V @ 0.5A
  
• 5V @ 2.0A
  
• 12V @ 40A
  

It's pretty obvious you won't go far with 0.5 or 2.0A and the BIAS supply is almost certainly an always-on AUX supply (for the L1 in case of the Origin). So everything derives from the 12V rail, as in most modern PC designs.

NB: There's a known manufacturing fault in these PSUs, or at least in older revisions of it. Look for Intel Technical Advisary TA-0674-5. The primary PFC diode will fail and blow up (this happened to my O350). I serviced this and other PSUs and the problem didn't come back.

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RE: o350 env chip locations - weblacky - 02-28-2022

(02-28-2022, 09:05 AM)jan-jaap Wrote:  +12V comes straight from the PSU. Just exchange PSUs and see if the problem move with the PSU or stays with the system. I bet you it's the env chip in the system. It's likely on the mainboard somewhere on the area underneath the chassis fans.

The PSU is a rebadged Delta DPS-500EB. It provides:

• 15V BIAS @ 50mA
  
• -12V @ 0.5A
  
• 5V @ 2.0A
  
• 12V @ 40A
  

It's pretty obvious you won't go far with 0.5 or 2.0A and the BIAS supply is almost certainly an always-on AUX supply (for the L1 in case of the Origin). So everything derives from the 12V rail, as in most modern PC designs.

NB: There's a known manufacturing fault in these PSUs, or at least in older revisions of it. Look for Intel Technical Advisary TA-0674-5. The primary PFC diode will fail and blow up (this happened to my O350). I serviced this and other PSUs and the problem didn't come back.

Useful info on this: https://gainos.org/~elf/sgi/nekonomicon/forum/3/16725720/1.html

worthless info on this: http://cwcyrix.nsupdate.info/intel-legacy-files-archive/Chassis/Intel%20SR2200,%20Intel%20SR2300/Docs/SR2300/ta6745500wpsufailures1.pdf

Good find!  Still would love hints on those DS1780 IC locations.

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RE: o350 env chip locations - jwhat - 02-28-2022

Hi vvuk & co,

there are two DS1780 chips on the O350 2U_INT_53 interface board.

Looking from front they are on right hand side (same side as power supplies) and marked as: G7G5 & H5G5 and sit in section in between the right hand side blue plastic system board locator and the DALLAS DS1742W-120 chip .

I am getting this from looking at a few photos of the board, as I do not have a nice single high res picture of the entire board.

I hope this is helpful.

Cheers from Oz,


jwhat/John.

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RE: o350 env chip locations - weblacky - 02-28-2022

Well, how many NODEs are listed on an O350 for env?

Each node is a DS1780, right?

Can’t we determine the number of ICs at least with this method or do I have that wrong?

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RE: o350 env chip locations - vvuk - 02-28-2022

(02-28-2022, 09:05 AM)jan-jaap Wrote:  +12V comes straight from the PSU. Just exchange PSUs and see if the problem move with the PSU or stays with the system. I bet you it's the env chip in the system. It's likely on the mainboard somewhere on the area underneath the chassis fans.

Thanks -- I've actually got two spare PSUs that I can try swapping in, but given that the 5.813V reading stays the same whether power is off or on, and that the temperatures are bogus I'm betting on the env chip as well.  Do you happen to know if the "12V" and "12V #2" readings are just the 12V rail at two different locations, or the independent 12V rails from each of the two PSUs?  Given that the PSUs are supposed to be redundant I would have expected it to just fault one PSU and continue from the other, but instead it triggers an auto-shutdown (in 30s, so certainly not urgently; maybe that's a configurable thing, and this is just set to shut down on any PSU fault?)

I'll try to take some high rez pictures of the mainboard when I look for the chips.

Also, in case this isn't known.. this o350 happened to be missing the CPU VRM.  The VRM turns out to be a standard part, VR091B080CS that's used in some HP servers as well.  I bought one inexpensively ($15) on ebay, it's identical to the VRM board that's in my other o350s.

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RE: o350 env chip locations - jan-jaap - 02-28-2022

(02-28-2022, 04:09 PM)vvuk Wrote:  Do you happen to know if the "12V" and "12V #2" readings are just the 12V rail at two different locations, or the independent 12V rails from each of the two PSUs?

I don't know for sure, but my bet is on the independent PSUs because my O350 (which has only a single PSU per node) only lists 12V#2:

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RE: o350 env chip locations - jwhat - 03-01-2022

Hi vvuk & co,

I can confirm that when you have two PSUs installed then you get both 12Vs reported in l1 env:

>> M200XXXX-001-L2>l1 env
>> 001c01:
>> Environmental monitoring is enabled and running.
>>
>> Description    State      Warning Limits    Fault Limits      Current
>> -------------- ----------  -----------------  -----------------  -------
>>          1.8V    Enabled  10%  1.62/  1.98  20%  1.44/  2.16    1.777
>>            12V    Enabled  10%  10.80/ 13.20  20%  9.60/ 14.40  12.063
>>        12V #2    Enabled  10%  10.80/ 13.20  20%  9.60/ 14.40  12.063
>>          3.3V    Enabled  10%  2.97/  3.63  20%  2.64/  3.96    3.320
>>        12V IO    Enabled  10%  10.80/ 13.20  20%  9.60/ 14.40  12.000
>>        5V AUX    Enabled  10%  4.50/  5.50  20%  4.00/  6.00    5.096
>>      3.3V AUX    Enabled  10%  2.97/  3.63  20%  2.64/  3.96    3.302
>>    PCI 5V AUX    Enabled  10%  4.50/  5.50  20%  4.00/  6.00    5.070
>>      PCI 3.3V    Enabled  10%  2.97/  3.63  20%  2.64/  3.96    3.285
>>      PCI 2.5V    Enabled  10%  2.25/  2.75  20%  2.00/  3.00    2.496
>>        PCI 5V    Enabled  10%  4.50/  5.50  20%  4.00/  6.00    4.940
>>  XIO 12V BIAS    Enabled  10%  10.80/ 13.20  20%  9.60/ 14.40  12.000
>>        XIO 5V    Enabled  10%  4.50/  5.50  20%  4.00/  6.00    4.914
>>      XIO 2.5V    Enabled  10%  2.25/  2.75  20%  2.00/  3.00    2.457
>>  XIO 3.3V AUX    Enabled  10%  2.97/  3.63  20%  2.64/  3.96    3.285
>>  IP53 3.3V AUX    Enabled  10%  2.97/  3.63  20%  2.64/  3.96    3.302
>>    IP53 5V AUX    Enabled  10%  4.50/  5.50  20%  4.00/  6.00    5.070
>>      IP53 12V    Enabled  10%  10.80/ 13.20  20%  9.60/ 14.40  12.000
>>      IP53 VCPU    Enabled  10%  1.13/  1.38  20%  1.00/  1.50    1.241
>>      IP53 SRAM    Enabled  10%  2.25/  2.75  20%  2.00/  3.00    2.470
>>      IP53 1.5V    Enabled  10%  1.35/  1.65  20%  1.20/  1.80    1.480
>>
>> Description    State      Warning RPM  Current RPM
>> --------------- ----------  -----------  -----------
>> FAN  0  EXHST 1    Enabled        1980        2410
>> FAN  1      PS    Enabled        3200        4891
>> FAN  2    PCI 1    Enabled        1980        2428
>> FAN  3    PCI 2    Enabled        1980        2636
>> FAN  4      ODY    Enabled        1679        1997
>>
>>                              Advisory  Critical  Fault      Current     
>> Description      State      Temp      Temp      Temp      Temp     
>> ----------------- ----------  ---------  ---------  ---------  --------- 
>>  0 INTERFACE 0      Enabled    [Autofan Control]    75C/167F  34C/ 93F
>>  1 INTERFACE 1      Enabled    [Autofan Control]    75C/167F  35C/ 95F
>>  2 INTERFACE 2      Enabled    [Autofan Control]    75C/167F  27C/ 80F
>>  3 PCI RISER        Enabled    [Autofan Control]    75C/167F  28C/ 82F
>>  4 ODYSSEY          Enabled    [Autofan Control]    75C/167F  28C/ 82F
>>  5 NODE              Enabled    [Autofan Control]    75C/167F  29C/ 84F
>>  6 BEDROCK          Enabled    [Autofan Control]    75C/167F  40C/104F
>>
>>                      Zone Temp    Target    Current  Zone Fan  Curr/Min
>> Zone Name  State    Sensors      Average  Average  Index      Fan %
>> ---------  --------  ------------  --------  --------  ---------  ---------
>> NODE        Enabled    0,1,2,5,6  47C/116F  33C/ 91F          0  18%/ 18%
>> PS          Enabled    0,1,2,5,6  47C/116F  33C/ 91F          1  55%/ 55%
>> PCI        Enabled            3  45C/113F  28C/ 82F        2,3  55%/ 55%
>> ODY        Enabled            4  48C/118F  28C/ 82F          4  55%/ 55%
>>

And here is l1 serial report:

>> M200XXXX-001-L2>serial all
>> 001c01:
>>
>> Data                            Location      Value
>> ------------------------------  ------------  --------
>> Local System Serial Number      NVRAM        M200XXXX
>> Reference System Serial Number  Attached L2  M200XXXX
>> Local Brick Serial Number      EEPROM        REF634
>> Reference Brick Serial Number  NVRAM        REF634
>>
>>
>> EEPROM      Product Name    Serial        Part Number          Rev  T/W
>> ----------  --------------  -------------  --------------------  ---  ------
>> INTERFACE  2U_INT_53      REF634        030_1809_006          D    000000
>> IO9        IO9            NZT098        030_1771_006          A    00
>> ODYSSEY    ODY128B1_2      RCZ635        030_1909_008          B    00
>> RISER      2U_RISER        NSG552        030_1808_006          C    00
>> NODE        IP53_4CPU      RAH315        030_2013_001          D    00
>> SNOWBALL    no hardware detected
>> PS 1        DPS-500EBE      XPD0710000209  060-0178-003          S4
>> PS 2        DPS-500EBE      XPD0710000057  060-0178-003          S4
>>
>> EEPROM    JEDEC-SPD Info          Part Number        Rev  Speed  SGI
>> ---------- ------------------------ ------------------ ---- ------ --------
>> DIMM 0    CE000000000000000CC70700 M3 46L2820DT2-CA0  2D  10.0  N/A
>> DIMM 2    CE000000000000000CE44500 M3 46L2820DT2-CA0  2D  10.0  N/A
>> DIMM 4    CE000000000000000C977E00 M3 46L2820DT2-CA0  2D  10.0  N/A
>> DIMM 6    CE000000000000000C8C7E00 M3 46L2820DT2-CA0  2D  10.0  N/A
>> DIMM 1    CE000000000000000C642F00 M3 46L2820DT2-CA0  2D  10.0  N/A
>> DIMM 3    CE000000000000000C917E00 M3 46L2820DT2-CA0  2D  10.0  N/A
>> DIMM 5    CE000000000000000C877E00 M3 46L2820DT2-CA0  2D  10.0  N/A
>> DIMM 7    CE000000000000000CFF4500 M3 46L2820DT2-CA0  2D  10.0  N/A
>>

Finally picture which shows 2 x DS1780 chips, directly inline with DALLAS socket & blue right hand positioning post (apologies in advance if this is super slow to load...) & another near part label:



Add zoom in on the pair of chips:



EDIT: O350 has 3 x DS1780 chips on interface board.

Cheers from Oz,

jwhat/John

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