Re: How does a Pentium III processor die?

Posted on 2017-03-18, 21:14

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cracking can occur too but the dead Amd's came that way, i never killed one myself as far as i remember. The older versions didn't have thermal protection and a defective cooler was sometimes enough to kill them. More often than not it was a clumsy first time attempt at mounting a heatsink onto a …

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Re: Very strange CMOS battery/checksum error problem (Just got stranger)

Posted on 2017-03-18, 20:39

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The PC is now re-assembled and the CMOS settings stick. Now I need to find a Windows 98SE CD to install onto this thing.. I feel so proud 😀

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Re: Very strange CMOS battery/checksum error problem

Posted on 2017-03-18, 15:10

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

No. Ctrl Alt Del and Reset button also cause cmos errors but the battery failed error is less consistent. I have no other AT PSUs. HOWEVER I made a big discovery. RTC chip gets 3v when case is laid on its side but when vertical regardless of jp3 setting pin 20 reads 0v against pin 1 or 12! Same deal …

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Re: Very strange CMOS battery/checksum error problem

Posted on 2017-03-18, 14:13

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Findings: 1. When the board is unplugged, there is no voltage to read between Pins 1-2 and 2-3 on JP2 (12V/5V select) which I guess is normal. I have left it at 2-3 position. 2. When the board is unplugged and JP3 is set to 2-3, Pins 1-20 and 12-20 on the VIA chip read 2.8V stable. So far so good. …

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Re: Bought these (retro) hardware today

Posted on 2017-03-17, 13:44

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by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yeah, I was going to build my Tualatin Celeron PC with a 9600XT in absence of a 8500, but now that I have it, 8500 it is. (Although I do have second doubts, considerin ght 9600XT is twice as powerful.. but it came out at least 2 years later so that would be cheating.)

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Re: Very strange CMOS battery/checksum error problem

Posted on 2017-03-17, 13:39

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

GPA wrote: I think you can imagine a worse outcome, but most probably there is a problem with power delivery, not the chip itself. But I can be wrong of course. I dare not ask what 😀 I really hope I can get this board to work, I was so happy while building this PC..

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Re: Bought these (retro) hardware today

Posted on 2017-03-17, 12:50

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Finally own one of my most memorable video cards of all time, the Radeon 8500. Mine was a red PCB 8500LE and I always wanted a green PCB reference 8500, but a black PCB custom 8500 will do.

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Re: Very strange CMOS battery/checksum error problem

Posted on 2017-03-17, 12:31

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

GPA wrote: you can ignore flash record voltage, it's not flash that is used to save cmos data, it is cmos ram in rtc. Ooh, so if the RTC has the voltage but fails to retain the info the worst that can happen is I replace it with an identical VIA chip (if I can find one that is..)?

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Re: Very strange CMOS battery/checksum error problem

Posted on 2017-03-17, 05:23

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Right.. I will take a multimeter to the mainboard this weekend and check the following; 1. Measure the voltage of the new battery (just in case it was a new but already old battery) to confirm I get 3V out of it 2. Measure between Pin 20 (VBat) and Pin 1 or Pin 12 (GND) of VIA VT85885N while the PC …

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Re: Can someone verify that this floppy emulator works for PC?

Posted on 2017-03-17, 05:01

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by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am not familiar with "paid HxC firmware" I am not affiliated. HxC is a proprietary floppy emulator device designed and manufactured for one man for a great variety of devices. Its fantastic firmware that has support for dozens of image formats and a lot of nifty features has been ported to run on …

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Re: Very strange CMOS battery/checksum error problem

Posted on 2017-03-16, 18:56

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the suggestions, but I should note that not only the RTC data (i.e. date and time) but also other BIOS settings get lost when I get the CMOS battery/checksum errors.. So it could be more than just an RTC chip issue (though I will definitely push down on it - I actually did that for the …

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Very strange CMOS battery/checksum error problem (Resolved :))

Posted on 2017-03-16, 17:44

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm building a 166MMX pc with a PCChips A101 v1.4 mainboard and I'm about to go nuts trying to diagnose a CMOS issue. The boars just refuses to keep settings. I attached a photo of the board in its current jumper configuration. I cant find a manual for it anywhere but the only jumper settings I can …

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Re: Bought these (retro) hardware today

Posted on 2017-03-16, 14:21

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by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Never would I have thought the hardest part of collecting a retro AT PC would be finding these:

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Re: Can someone verify that this floppy emulator works for PC?

Posted on 2017-03-16, 12:00

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes I use it although with the paid HxC firmware which is a million yimes better

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Re: Pentium PC won't boot with IDE-FC Adapter..

Posted on 2017-03-16, 10:16

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok the cable you describe is exactly what I was wondering where to find - never saw anything of the kind. May be I didn't phrase it well: Just a normal HDD cable . Which you will connect to a male CF adapter. Ok, ok, I get it now, the adapter I have now is a lost cause :) With this board anyway.

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Re: What retro activity did you get up to today?

Posted on 2017-03-16, 08:18

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Finally found and bought a Radeon 8500 at a decent price, now I have one less missing hardware in my memory lane of computer history.. Now I just need to decide whether I want a Radeon 8500, 9600XT or 9800PRO in my Tualatin build..

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Re: Pentium PC won't boot with IDE-FC Adapter..

Posted on 2017-03-15, 14:48

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok the cable you describe is exactly what I was wondering where to find - never saw anything of the kind. On the other hand, I may as well just buy a different CF-IDE adapter at some point.. For the moment, a real HDD will do the job. Not like I'd get lightning fast speeds from a CF-IDE over ATA-33 …

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Re: What retro activity did you get up to today?

Posted on 2017-03-15, 14:45

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PCMCIA Sound Cards exist.

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Re: Bought these (retro) hardware today

Posted on 2017-03-15, 14:02

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The mailman passed by with goodies today.. http://image.bolterandchainsword.com/uploads/gallery/album_11505/med_gallery_60983_11505_266699.jpg Seagate 8.4GB HDD for my Pentium 166MMX. Not exactly period correct as it's a couple years too young, but it's about as accurate as I could go without …

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Re: Pentium PC won't boot with IDE-FC Adapter..

Posted on 2017-03-15, 13:13

by

by appiah4

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I understand it seems completely illogical, but once I had a similar issue with exactly the same CF adapter and card: on a specific motherboard, plugging the adapter directly to the IDE connector caused beeping as there's no VGA installed. I solved it by using a HDD cable and connecting a different …

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