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Topic Review (Newest First)

  • April 29th, 2005, 03:58 AM
    Peter M
    >Author: Gabriel Torres Last Updated: October 31, 2004

    ... based on stuff I wrote half a century ago for the Wim's BIOS webpage, which in itself added to data collected by others shortly before that. The original page is still there:
  • April 28th, 2005, 07:12 PM
    I know this is old, but this is the only thread that came up when I searched. So, this may help others searching vxpro stuff here.

    I had similar questions and found it helpful.

    I C&P'd the whole thing. In case they (almost definitely will eventually) take it down.

    edit> Sorry, the table looks crap. It didn't C&P well. If you can do better....

    Home Motherboard

    Chipset Aliases: TX Pro, VX Pro & Co.
    Author: Gabriel Torres Last Updated: October 31, 2004
    Type: Tutorials Comment on this article!
    Page: 1 of 1

    The "xPro" chipsets (TX Pro, VX Pro, HX Pro, BX Pro, etc) are chipsets from companies like SiS, VIA and ALi relabeled by PCChips, i.e., PCChips gets a chipset like SiS 5598 and writes "TX Pro II" on it instead of "SiS 5598". A relabeled chipset has exactly the same features of the original chipset.

    This story goes back to the time of the Intel 430 VX and Intel 430 TX chipsets release, when users looked for motherboards with these chipsets (VX and TX) and found VX Pro and TX Pro on the market. Since the Pentium Pro processor was realeased by the same time, many believed that they were buying a more advanced motherboard, with better chipset than the ones from Intel - since Pentium Pro was more advanced than the Pentium processor.

    Besides PCChips, other companies relabeled some chipsets as well. One of them was AMD, who was willing to release a chipset compatible with their K5 and K6 CPUs. They released the AMD-640 chipset, which was in fact a relabeled Apollo VP-2 from VIA. Another company that relabeled some chipsets was Soyo, who released some motherboard with "ETEQ" chipsets, which were relabeled chipsets from VIA. Even ASUS released a relabeled chipset, Super TX (a relabeled SiS 5598), on their SP97-V motherboard.

    As the relabeled chipsets "don't exist" (are an invention from PCChips, Soyo, AMD and some other companies), you need to know which is the real chipset manufacturer and model from your motherboard, in order to install updated drivers, for instance - specially the video drivers on motherboard with on-board video feature, as it happens with SiS 5598 ("TX Pro II"). For the TX Pro II chipset, just go to SiS website and download the SiS 5598 drivers, for example.

    We compiled a table containing the name of the relabeled chipset, its real manufacturer and model and which motherboards use the specified chipset.

    Keep in mind that many "manufacturers" like Amptron, Eurone and Matsonic, just to name a few, use relabeled PCChips motherboards. Some of these "manufacturers" use a different naming scheme, which we posted on the table (for example, Amptron PM9100 is, in fact, PCChips M571). But the majority follow the PCChips naming scheme. This table is far from being complete and any correction or addition is welcome.

    Relabeled Chipset Real Chipset Motherboards
    AGP Pro PC-100 VIA Apollo MVP3 (VT82C598AT) PCChips M577 (Amptron PM9900)
    AMD-640 VIA Apollo VP2 (VT82C595) Shuttle HOT-603
    BXcel ALi M1621 (Aladdin Pro II) PCChips M726 (Amptron PII-3726), M727 and M729
    BXpert VIA Apollo Pro (VT82C691) PCChips M730, M761 (Amptron PII-3200), M762 and M765
    BX Pro SiS 5600 PCChips M747 (Amptron PII-3747)
    BX Too VIA Apollo Pro+ (VT82C693) PCChips M760 (Amptron PII-3760) and M767
    ETEQ 6618 VIA Apollo VPX (VT82C580VPX) Soyo SY-5EAS5
    ETEQ 6628 VIA Apollo VP3 (VT82C597) Soyo SY-5ED
    ETEQ 6638 VIA Apollo MVP3 (VT82C598AT) Soyo SY-5EHM, SY-5EH5, SY-5EMA, SY-5EMA+, SY-5EMA Pro and SY-5EMM
    GFXcell SiS 630 PCChips M755, M756, M757 and M758
    GFXpro ALi M1631 (Aladdin TNT2) PCChips M754
    HX Pro ALi M1521 (Aladdin III) PCChips M539
    PC100 SiS 5591 PCChips M590 (uses SiS 6326)
    Super TX SiS 5598 ASUS SP97-V, SP98-N and Jetway J-TX98R2
    Super TX ALi M1541 (Aladdin V) Biostar M5ALA, M5ALC and Pionex MBD-P5ABx
    Super TX3 SiS 5598 PCChips M571 (Amptron PM9100)
    Super TX4 SiS 5591 PCChips M570 (Amptron PM9700)
    SX Pro SiS 530 PCChips M598 (Amptron PM-598) and M599 (Matsonic MS-6380SG)
    T-Bird SiS 730S PCChips M810 (Matsonic MS8308E, ECS K7SEM)
    TX AGP Pro SiS 5591 PCChips M570 (Amptron PM9700)
    TX Pro ALi M1531 (Aladdin IV+) PCChips M560 (Amptron PM8500), M560TG, M565 and M575 (Ability MB-586TXA1, "Top Gun")
    TX Pro II SiS 5598 PCChips M567, M571 (Amptron PM9100) and M596
    TX Pro III VIA Apollo VPX (VT82C580VPX) PCChips M573
    TX Pro IV SiS 5591 PCChips M570 (Amptron PM9700)
    TX Two ALi M1531 (Aladdin IV+) Amptron PM9600
    VIA GRA VIA MVP4 (VT8501) PCChips M585
    VX Pro VIA Apollo VP1 (VT82C580VP) PCChips M537 (Amptron PM8400A/B)
    VX Pro+ VIA Apollo VPX (VT82C580VPX) PCChips M537DMA33 (Amptron PM8400C/D, Ability MB-586VX7+, Eurone EM-5800V+, Matsonic MS-5120) and M547
    VX Pro II Utron UT801x PCChips M558, M559 and M592
    VX Two VIA Apollo VP1 (VT82C580VP) Amptron PM8600A
    VX Two VIA Apollo VPX (VT82C580VPX) Amptron PM8600B
    Xcell 2000 SiS 620 PCChips M741 (Amptron PII-3741) and M748 (Amptron PII-3748)

    Attention: Be careful to not make confusion between TX3 and TX Pro III. TX3 is a motherboard model produced by SMT, which uses Intel's 430TX chipset. This motherboard does not have any relationship with those chipsets nor with PCChips.
  • March 2nd, 2005, 02:51 AM
    thank you very much for information, i just posted new thread when i noticed the first thread where i posted a message was bit old...
  • March 1st, 2005, 07:37 PM
    Peter M
    VXpro+ is VIA Apollo VPX/97, and yes, it can use 128-megabit SDRAM chips for 256 MBytes per DIMM.
    You can also swap processors without reinstalling Linux.

    Furthermore, you can get answers from everyone by posting ONE thread with your questions in
  • March 1st, 2005, 06:43 PM
    OK, here is the question:

    Is it possile to put 2x256 MB of SDRAM into DIMM slots in VXPro+ (M537DMA) ?

    and generally speaking, what is the maximum amount of memory the motherboard can acccept, manual says 384, but i think with the freshest bios could be more, am I right?

    If the first combination is not possible, is it possible something like 2x128 EDO in DIMM slots + 2x64 EDO in SIMM slots? (working on same voltage?)

    please help... i got a linux box that is definitely choking, but i'm not ready for new machine, and installation procedure of 7 days, i want to tweak hw. and sw. ....

    also... i want to ask whether it is possible to change processor from 166Mhz MMX Intel to something faster without a need for reinstallation of linux?

  • February 17th, 2004, 04:30 PM
    Peter M
    Just look closely ... the jumper settings are silkscreened to the board. Not necessarily right next to the jumper, but it's all there. is the place to dig around in. The latest (April 1998) BIOS for the VXpro+ board is there too.
  • February 17th, 2004, 09:53 AM
    Thanks, Peter.

    That clears everything up for me. That's what I thought you were saying - you can mix EDO SIMMS and DIMMs, provided they are the proper(same) voltages.

    As I said above, my link to the M537 manual was dead. Do you have a link, so I can look at those jumper settings?

    Thanks again for all of the good info, per usual. You're a good man.It's always good to see your input at this site. it is appreciated.

    Thanks again.

    - Bill
  • February 17th, 2004, 05:02 AM
    Peter M
    Again, if these DIMMs are EDO, you can use them along with your EDO or FPM SIMMs. Mind the DIMM voltage jumpers - EDO DIMMs can either be 3.3V or 5V.

    Now that it's a VXpro+ chipset, you could also try to get hold of a couple of SDRAM DIMMs with a maximum of 128 MBytes per DIMM side, from eight chips - max DIMM size 256 MBytes from 16 chips, DIMMs with higher capacity chips won't work. Speed grade doesn't matter, they may just as well be PC133. You can't use your SIMMs alongside those, though.
  • February 16th, 2004, 07:39 PM

    Thank you Peter, but I'm still a little confused:

    There are 4 EDO SIMMS installed already. There are two empty 168-pin DIMM slots. If I find my DIMM modules, which I thought were 128MB, 60ns EDO's, I can use a stick in addition to the SIMMS?

    Or am I wrong about my DIMM modules,(that I can't seem to locate), I remember they were 60ns DIMM modules, and, as such, can be used in association with the existing EDO SIMM modules?
    60ns would necessarily mean EDO?? Or am I mistaken here?

    Found a link to the PC Chips M537 manual, but I couldn't access the page. Once again, it is a VXpro+ board, v. 5.2, so I should be good to go as far as adding memory. (The Via site suggests the 4.35 4-in-1 drivers for chipsets older than the Apollo Pro or "MVP")
    If you have a better suggestion,(for a 98SE box), please let me know.

    Sorry to be so "thick-headed" about this. (Took an accounting course - it took me a month to get "credit" and "debit" straight).


    - Bill
  • February 16th, 2004, 05:08 PM
    Peter M
    Once again, if the DIMMs are EDO, you can run them alongside EDO/FPM DIMMs no problem. It's just physical form factor, which doesn't matter. Mixing entirely different technology, e.g. EDO and SDRAM, on the same bus doesn't work.
  • February 16th, 2004, 01:33 PM
    Thanks, elroy.

    That would be,(at least in this instance), the gold colored tabs on the ends? So they are somewhat similar to a DIMM, they just release differently, than pulling straight out. I think I get it.


    - Bill
  • February 16th, 2004, 01:08 PM
    To remove the modules there should be little metal clips on each end of the module. Pull the clip back and then push the top edge of the module sideways, then pull up.
  • February 16th, 2004, 12:58 PM
    Thanks, JP:

    Yeah, that black power cord runs to the front switches of the case.

    Thanks for the clarification on the SIMMS / DIMMS. One question though - How do you remove the modules, since they're different than DIMMS? (It's a tight fit down in there - kinda hard to see how those SIMMS are mounted).

    That chipset is the VXpro+ that Peter mentioned, v. 5.2 ,so it will take more ram, if I can just find those EDO modules. (Got them w/ MB purchase about 5 years ago, never had a use for them, so consequently, these modules never made it to my "RAM box".

    Thanks for the info.

    - Bill
  • February 15th, 2004, 06:25 PM
    John Prophet
    I seriously doubt you can use dimms and simms at the same time no matter what the rev# lol.

    The black power chord is probably just the regular at setup....its a "hard wired" type deal as opposed to the atx actually there is 110v on the switch contacts and in that blk cable.

    I wouldnt be too sure about the 4in1 drivers going back THAT far but I dont know for certain.


    I wonder if by this-----> It's either SDRAM or EDO/FPM, but if the DIMMs are 5V EDO, then you can mix them with EDO or FPM SIMMs<------....where it says 5v "DIMMS" he really meant "SIMMS"

    as in u could mix the edo/fpm simms together.
  • February 15th, 2004, 06:07 PM
    Thanks for the information,guys:

    I just came back from doing a little bargain hunting at CompuSA.

    So I can use current/recent VIA 4-in-1 MB drivers? I wasn't certain how far back the 4-in-1's supported.

    Being rather ignorant regarding the AT format, what's the second, black power cord go to, that's inside the case? Just curious.

    Seems that as I was trying to look around inside this cramped case late last night, I could make out a rev. 5.32 or 5.34. over 5.0 anyway, so I should be able to add memory.

    JP - Thanks for the info and links,and especially for following me thru this project!

    Peter - are you saying that, if the existing SIMMs and my DIMM module are 5.0v EDO, that both SIMMS and DIMM will run at the same time? (I'm certain of the 128MB EDO DIMM that I have - I just have to find it now!). Peter, I wish you had the time to allow PMs to you, because it seems many times,(make that always), I value your input, but sometimes I need one more sentence or two, just for clarification. Oops, my bad - just noticed that you could be e-mailed. This wasn't always the case, was it?

    I ran Memtest86+ (only 3 passes), but I really didn't look at all of the info - I'll check that again, as well as the POST. (I thought BelArc Advisor would give me more memory info/ID, but it doesn't).

    98SE loaded a video driver for this S3 Sirge PCI (325) adapter, and Creative drivers for this ISA sound card. Thought I've found an updated video driver for this card. Haven't really tried anything out yet.

    Thanks again for all of the info.

    - Bill
  • February 15th, 2004, 03:51 PM
    Peter M
    Hehe, ye olde "PC-Chips chipset alias names" page I used to maintain ...

    VXpro means it's a PC-Chips M537, and the chipset actually is a VIA VP-1.

    If it's not a VXpro+ (VIA VPX/97), identified by a "DMA33" sticker somewhere on the board and/or the board being at least rev. 5.0, the size limit for an SDRAM DIMM is 32 MBytes, rather useless today. If it is the "+" chipset, the limit is 256 per DIMM.

    It's either SDRAM or EDO/FPM, but if the DIMMs are 5V EDO, then you can mix them with EDO or FPM SIMMs.
  • February 15th, 2004, 03:47 PM

    The VxPro is an old VIA Apollo chipset, circa '97 or '98 I do believe.
  • February 15th, 2004, 03:46 PM
    John Prophet

    see if any of this fits


    The VXPRO chipset is a relabeled VIA Apollo VP-1 chipset.
    You can identify the VXPRO by looking at the Award BIOS Number: 2A5LAH09C
    The BIOS number also reveals the real name of the chipset: 2A5LA stands for a VIA Appollo VP-1 chipset.
    H0 stands for Hsing Tech/PcChips
    Because it's a VIA chipset you can use the latest VIA Busmastering drivers. (see
    You can find BIOS updates at the PcChips website. The model to choose is M537 (don't choose M537DMA33 !!)
    Note that this board is also being sold under the following names: Sybercom MB537, Ability (model: ???), Protac MB5370, Eurone/Matsonic (model: ???), Aristo (model: ???), Houston Technologies M537, PCWare (Alton). THESE BOARDS ARE IDENTICAL TO THE PCCHIPS M537 !!
    The latest BIOS Release at PcChips shows this BIOS number: 08/15/97 - VXPro-UMC8670-2A5LAH09C-00 and also Release 08/15/1997 S at the top of the screen.
  • February 15th, 2004, 03:35 PM
    Thanks, guys.

    JP - it's not a slot, it's a socket Pentium 200, and it is "VxPro" on the chips. When I installed 98, and looked at Disk Controllers in Dev Mgr, there is a VIA bus controller listed, so I have to assume it's an earlier(?) VIA chipset.

    Thanks again, guys. (I want to get finished with this Dinosaur this evening, hopefully).

    Rick - my son misses the "All Evil, All the Time" motto, but maybe
    it's unfitting for a Moderator

    - Bill

  • February 15th, 2004, 03:24 PM
    You are looking at a BabyAT mobo.
    You cannot run SIMMs and DIMMs at the same time.
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