[Old chipset] Intel 3000 MCH is detected as an E7230 MCH

[JohanPirlouit]

Hello everyone,

I don't know if it is a bug or something else not dependant to HWiNFO but I am currently renovating an old Dell server and its North Bridge is not correctly reported:
- Model: Dell PowerEdge SC440.
- Motherboard: Dell YH299, Rev. A01.
- North Bridge: Intel 3000 (QG3000, SL9Q5).
- South Bridge: Intel ICH7 (NH82801GR).
- CPU support: Dual-Core Xeon 3000 Series, Pentium D 800/900 Sequence, Pentium 4 600 Sequence and Celeron D, all in in the LGA775 package.
- Additional and unofficial CPU support: all Conroe and Kentsfield families (Core 2 Duo and Quad) up to 95 W TDP, with latest Dell BIOS (1.5.0).
- Actual CPU installed: Core 2 Quad Q6700 (SLACQ), with a 375 W PSU from a Dell Precision T3400, instead of the stock 305 W PSU.

The bug: HWiNFO reports the North Bridge as an Intel E7230, a chipset that can't support any Core 2 CPU but only LGA775 NetBurst CPUs (Pentium D, Pentium 4 and Celeron D).

Attached files:
- Debug file: HWiNFO64.DBG
- HTML report: HWiNFO64.HTM
- Photo of the board with north bridge without its heat sink: Dell YH299 with Intel 3000 MCH.jpg

Additional information if needed:

Intel 3000/3010 MCH:
- Short description: https://datasheets.globalspec.com/ps/4188/Intel/D9CD201F-BD9A-4B47-A6AF-D2100F8046F4
- Datasheet: https://www.mouser.com/pdfdocs/3010datasheet.pdf
- Main difference between the 3000 and the 3010: only 8 PCIe lanes for the 3000 instead of 16 for the 3010.

Intel E7230 MCH:
- Short description: https://datasheets.globalspec.com/ps/4188/Intel/DA309B62-CFE6-4E04-B383-9FFD25C3E759
- Datasheet: https://www.intel.com.au/content/dam/doc/datasheet/e7230-chipset-memory-controller-hub-datasheet.pdf

The Intel 3000 MCH code name is not clear: on its web pages, Intel seems to report it as "Mukilteo" (like the E7230) but many of board manufacturers report it as "Mukilteo 2", same as the 3010. And if we look closer to its specs and datasheets, the 3000 is really closer to the 3010, more than the E7230...

I do not know if it can fixed but I hope so...

Best regards,
Johan

 

[Martin]

Both the 3000/3010 (Mukilteo-2/Mukilteo-2P) and E7230 (Mukilteo) chipsets use the same PCI Device ID (2778h) and similar code names as well.
HWiNFO can distinguish between all models by following Intel documentation (which isn't public, so I can't disclose this).
The main point is that Intel says the Mukilteo-2/2P MCHs shall use PCI Revision IDs = Cxh (x=any number), while the E7230 is using 8xh.
Your MCH has Revision ID 00h and I have seen other machines with E7230 having Revision ID 00h too.
So it looks like Intel doesn't follow its own specifications and hence I don't know how to fix this