Re: Modified BIOSes for ASUS P3B-F, P3V4X, CUBX and CUBX-E/L

Posted on 2020-10-18, 14:19

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the extensive tests! One of the fail-safe mechanisms includes the detection of an interrupted POST. (The BIOS takes note of ongoing/succesful boots via a CMOS value.) If the system experiences hangs during startup, this might trigger the "... CPU/frequency combination ..." message. The …

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Re: Modified BIOSes for ASUS P3B-F, P3V4X, CUBX and CUBX-E/L

Posted on 2020-10-18, 08:40

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, today I've been testing my CUBX-E with modified BIOS. Everything works well except POST after cold boot is usually interrupted and BIOS/Advanced section is shown with the red note saying CPU was reinstalled or improper frequency combination set (neither is true). Motherboard is correctly set …

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Throttle.exe for uncooperative PIIX4 mainboards (e.g. ASUS P3B-F)

Posted on 2020-08-31, 18:31

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As discussed here , previous versions of throttle.exe would not succeed in throttling a P3B-F (and certain other mainboards based on the PIIX4 southbridge). Jeff Leyda, the author of throttle.exe, has taken the time to update his program to support these mainboards. The update can be found here: …

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Re: ASUS P3B-F Comparison v1.03, v1.04

Posted on 2020-07-05, 09:17

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Of course Asus did make one i8xx board that has it all: the Asus P3C-E, with native 133MHz FSB, performance on par with i440BX and an ISA slot too. But rare as hen's teeth as RDRAM, which these days is no more expensive than SDRAM, but 20 years back cost far, far more. I have one, but it's dead :'( …

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Re: ASUS P3B-F Comparison v1.03, v1.04

Posted on 2020-07-04, 21:33

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

P3V4X reviews triggered my curiosity in the past because I thought it was maybe the only 'pure' Coppermine board that was able to beat the P3B-F in terms of raw speed. That was not the case (here) but they are very close and the 2Mb SDRAM allows for a relatively smooth Windows XP experience :-) …

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Re: ASUS P3B-F Comparison v1.03, v1.04

Posted on 2020-07-04, 16:55

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

When it comes down to comparing notes between individual fanciers it is imo anecdote. Even if somebody tells me that he has 2 or 3 P3B-F boards causing trouble with Coppermines it can still be the result of individual condition of the boards - or better: lack of condition. Definitely. My go-to …

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Re: ASUS P3B-F Comparison v1.03, v1.04

Posted on 2020-07-04, 16:44

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PARKE wrote on 2020-07-04, 16:34: [...] which resulted in ASUS releasing revision 1.04 (october 1999) and 1.05 (jan 2000). Interesting that you mention this. I read about a 1.05 revision, but have never seen even a photo of it. Did you ever come across one?

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Re: ASUS P3B-F Comparison v1.03, v1.04

Posted on 2020-07-04, 16:35

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does that mean the instabilities were only evident on the v1.04 and not the v1.03? As @PARKE has had first-hand experience at running higher specced Coppermines on a v1.03 with VRM 8.4, wouldn't that make them more reliable than the v1.04? Is that possible? For instance, what is the VRM version …

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Re: Tualatin upgrade - too much current?

Posted on 2020-07-03, 16:41

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't know how to derive the VRM capabilities from looking at the MOSFET specifications, but you might be able to get a few insights from the following aspects: The most current-hungry CPU Asus lists as compatible for the P3B-F is a Celeron 1100. According to Intel datasheets , this CPU draws a …

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Re: ASUS P3B-F Comparison v1.03, v1.04

Posted on 2020-07-02, 20:43

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That is the 'official' interpretation but there must be a truckload of P3B-F boards rev 1.03 around in the wild with the 'old' VRM layout but that are accomodated with VRM 8.4 compliant voltage regulator chips. Both my PB3-F revision 1.03 boards for examplw are like that and support all Coppermines …

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Re: ASUS P3B-F Comparison v1.03, v1.04

Posted on 2020-07-02, 18:52

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My suspicion is that the differences in the VRM layout are related to the update to VRM 8.4 that occured during the v1.03 . Yes, only revision 1.04 of the P3B-F officially supports processors with higher power demands (i.e. most Coppermine cores), see here . The capacitor in location CE33 is not …

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Re: Pentium 3 upgrade table / questions

Posted on 2020-06-24, 17:52

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That might depend on the way the modification is done. I've been using cD0 stepping Coppermine-Ts on a Lin-Lin adapter and a Upgradeware Slot-T without issues. I haven't checked whether this also works for non-"T" Coppermines. Thanks for your reply! With that statement, I meant that PPGA Celerons …

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Re: Pentium 3 upgrade table / questions

Posted on 2020-06-24, 17:45

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

2. How important is BIOS support for Coppermine / Tualatin. From what I can gather, boards don't really need to support these chips, they need to not be actively blocking them. Otherwise, support just means the correct name/specs are shown. If I recall correctly, there might be differences in L2 …

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Re: Looking for Motherboard CDs to complete my collection (asus,gigabyte,fic,aopen,msi,epox)

Posted on 2020-06-11, 11:37

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Horun wrote on 2020-06-06, 21:28: Thanks ! Looks like it covers most of the Intel 430, 440, 810, 815 and 820 chipset based boards. Glad to help. Any chance of adding the image to the driver library? I'd probably not keep it up forever.

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Re: VOGONS Driver Library

Posted on 2020-06-06, 06:59

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There's a Gigabyte mainboard driver CD available at Re: Looking for Motherboard CDs to complete my collection (asus,gigabyte,fic,aopen,msi,epox) (came with a GA-BX2000+) if anyone's interested ...

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Re: Looking for Motherboard CDs to complete my collection (asus,gigabyte,fic,aopen,msi,epox)

Posted on 2020-06-06, 06:53

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cga.8086 wrote on 2020-02-01, 01:34: GIGABYTE GA-BX2000+ [removed]

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Re: Looking for Motherboard CDs to complete my collection (asus,gigabyte,fic,aopen,msi,epox)

Posted on 2020-06-05, 12:02

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cga.8086 wrote on 2020-02-01, 01:34: GIGABYTE GA-BX2000+ I do have a CD for this board here (labelled GA-IUCD_14). Should it still be needed, let me know.

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Re: Best BIOS dumping practice for OEM SS7

Posted on 2020-06-02, 05:52

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ah, didn't know that it could be used that way. Thanks. Do you know what kind of BIOS brand it is based on? Not entirely sure, but it should be an old Phoenix variant. At least there are some "BC" and "BCPCMP" header structures, though it lacks the BCPSYS anchor of more recent Phoenix images. Any …

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Re: Best BIOS dumping practice for OEM SS7

Posted on 2020-06-01, 20:43

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

brian105 wrote on 2020-06-01, 15:34: Ah, didn't know that it could be used that way. Thanks. Do you know what kind of BIOS brand it is based on? Not entirely sure, but it should be an old Phoenix variant. At least there are some "BC" and "BCPCMP" header structures, though it lacks the BCPSYS anchor …

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Re: Best BIOS dumping practice for OEM SS7

Posted on 2020-06-01, 07:09

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by DenizOezmen

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The update darry posted creates a boot floppy. The ROMPAQ program on the floppy can decompress the custom image format: rompaq.exe /d strm6a10.f52 out.bin The result is a 2 Megabit image, of which the latter half is identical to the dump file. Hard to say whether the decompressed image is complete, …

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