Re: Lowest CPU to play MP3s?

Posted on 2019-07-22, 21:45

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I also noticed when I was doing benchmarking years ago that having USB card installed reduced the benchmark results. It is noted in a thread somewhere. Enabling slow refresh is the optimal setting, but probably won't help your situation much. You need to disable the spectrum analyser and scrolling …

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Re: What is the difference in terms of perfomance between 256KB L2 cache for 32 or 64 MB of RAM?

Posted on 2019-07-20, 22:34

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Typically on 486 motherboards with direct-mapped cache, if your L2 cache is in write-back mode, the board will cache up to 32 MB of RAM. If it the L2 cache is in write-through mode, it will cache up to 64 MB of RAM. If you are using DOS with 64 MB of RAM and L2 in write-back mode, you likely will …

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Re: Chinese 10ns SRAM for L2 cache

Posted on 2019-07-19, 21:17

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Tiido, do you have a thread on these SMD to DIP SRAM PCB's? Are there real 10 ns modules? And is a VRM required on the PCB?

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Re: Chinese 10ns SRAM for L2 cache

Posted on 2019-07-19, 21:16

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought these cheap 10ns 32pin DIPs to upgrade the current 256k to 512k , but the PC does not even boot with it... I know that the TAG is slower but it should boot regardless. The jumpers are good. Has anyone tried these? They seem to be low quality, the marking come off as soon as you touch it, …

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Re: ATI RAGE 128 GL (PCI) and 128 PRO (AGP) BIOS

Posted on 2019-07-16, 08:29

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There was some thread where someone mentioned to me that they have what looked identical to the Mac version of the 128 GL, but worked fine in his PC. As for the NIB card from that interloper seller, unless you are after a Rage 128 Pro in PRO format, I wouldn't buy it. His listing said it was for 128 …

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Re: AMD 5x86 @200

Posted on 2019-07-13, 00:12

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Which board?

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Re: My K6 III+ System

Posted on 2019-07-12, 11:54

by

by feipoa

in Marvin \ System Specs

in Marvin \ System Specs

A pleasantly stylish beige mini-tower. All it needs is a K6-III case badge, e.g. https://www.ebay.ca/itm/254193926158

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Re: AMD 5x86 @200

Posted on 2019-07-12, 07:31

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have mine(ADZ) booting at 200 and working at 180(tested thoroughly without any error in DOS and Windows). It runs at 180 with just 3.6V and no voltage enables it to run with 200... What is the datecode on that ADZ chip? Is it stable running games in Windows? How many chips did you need to try to …

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Re: DS12887 drop-in replacement

Posted on 2019-07-09, 02:51

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm particularly fond of how the RTC's PCB colour matches the motherboard. Looks very natural.

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Re: Which modern Linux on highend 486 system?

Posted on 2019-07-03, 01:50

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have found these 486 HOT Shuttle boards to not be the most reliable. It is a long shot, but could you try using Gento with 64 MB (32x2) FPM, 256K double-banked, and the POD in WT mode? Yes, I realise you mentioned on more than one occasion that the system works fine in Windows OSes, but sometimes …

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Re: Biostar MB-8433UUD-A

Posted on 2019-07-01, 22:00

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You'd think, but hard to say with certainty. If you have any of the graphics cards I mentioned, then you could at least compare directly with my system. I noted the same Quake score on the Biostar and Gigabyte systems, so...

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Re: Market value for popular or rare classic computer hardware

Posted on 2019-07-01, 20:39

by

by feipoa

in Milliways

in Milliways

It is to track and comment on the market value of sold vintage computer items, particularly those of high interest or value.

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Re: Market value for popular or rare classic computer hardware

Posted on 2019-07-01, 20:13

by

by feipoa

in Milliways

in Milliways

With some of these insane prices being realised on eBay, it makes me wonder if the buyer and seller are the same person. Perhaps use a secondary account to artificially raise prices. You loose out on eBay fees, but perhaps it is worth it later on if someone really buys it?

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Re: Market value for popular or rare classic computer hardware

Posted on 2019-07-01, 10:53

by

by feipoa

in Milliways

in Milliways

Creative 3D Blaster VLB sells for $5,000 USD Creative_3D_Blaster_VLB_5K.jpg DISCLAIMER What I see happening on eBay is sellers listing ridiculously high prices, then buyers put in private offers, seller accepts, but when you view the completed auction, it shows the item as having been sold at the …

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Re: Biostar MB-8433UUD-A

Posted on 2019-07-01, 10:38

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

s.mouse wrote: ...copied Phils benchmark pack 1.4... Don't use Phil's benchmark pack. Use the original DOOM demo and Quake demo versions. For DOOM, run setup.exe first to ensure sound is set to disabled. I have noticed that Phils bench pack results are set to be more demanding than the game …

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Re: Custom interposer module for TI486SXL2-66 PGA168 to PGA132 - HELP!

Posted on 2019-06-30, 21:53

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Journeys suck, I'm about destinations lol - we're all dead in the end. But if you are content with that mindset at this stage in your life, there's still plenty of journey left until you're dead. Tiido - I'll think about this in the days to follow. We managed to convince a babysitter to come today …

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Re: Custom interposer module for TI486SXL2-66 PGA168 to PGA132 - HELP!

Posted on 2019-06-30, 04:58

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

hmmmm... might be best to leave it to someone with more design experience and dedicated enthusiasm for the project then. If it doesn't end up working out well, I wouldn't want you to feel disappointed or that you've wasted time. Ideally, the person who draws up the design should feel indifferent …

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Re: Custom interposer module for TI486SXL2-66 PGA168 to PGA132 - HELP!

Posted on 2019-06-29, 22:07

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

LOL! Well, what did you think of the hand assembly? It seems to have gone ignored and I've been wondering if you are trying to talk yourself out of the PCB design. You don't have to do it. Is it a bit too complex for you? You can even use male-female single row machine pin for the top PGA168 which …

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Re: Custom interposer module for TI486SXL2-66 PGA168 to PGA132 - HELP!

Posted on 2019-06-29, 14:01

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is a photo of a PGA168 socket over a PGA132 socket to give you some idea as to how many PGA132 pins should be accessable from the top of the PCB, even with the PGA168 socket in place. For the non-top-accessable pins, I've attached an image of the male-to-male machine pins. It may be possible to …

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Re: Custom interposer module for TI486SXL2-66 PGA168 to PGA132 - HELP!

Posted on 2019-06-29, 13:44

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It will be a little cumbersome, but I think you'd first solder on the male-to-female PGA socket, and cut the male leads just to the end of the PCB such that they do not pultrude. The other end is a male-to-male machine pins. The male-to-male machine pins cannot be in a full grid, otherwise you'd not …

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