HardwareSoftware

Patching the fake cache BIOS

During one of my adventures at the scrapyard, I picked up a 486 motherboard – the BEK-tronic BEK-V429S. As it turns out, this board had fake cache chips installed! If you want to see the full story, here is the video in which I discover that fake chips. But how is it possible that seemingly nobody caught on and identified the fake cache earlier? The company or individual who owned…
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Fixing the S3 "Brightness Bug": A Deep Dive into the Pedestal Bit BIOS Mod

How Quake III Broke the Rules of Math: The Story of the Fast Inverse Square Root

HardwareSoftware

Sound Banks - a software upgrade for your Sound Blaster

Owning a Sound Blaster back in the mid 90’s was probably a big deal – I wouldn’t know with my ESS AudioDrive. And although my ESS sound card wasn’t a real Sound Blaster from Creative, it was a compatible card which got the job done. Recently, a viewer sent me a Sound Blaster 32 PnP for repair. My first attempt to fix the card failed. There was just no way to get past a…
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Fixing the S3 "Brightness Bug": A Deep Dive into the Pedestal Bit BIOS Mod

How Quake III Broke the Rules of Math: The Story of the Fast Inverse Square Root

HardwareSoftware

Creative SoundBlaster 32 PnP - CT3670

Some time ago, a viewer of my channel sent me a broken SoundBlaster 32 PnP with the model number CT3670. This sound card seems to be special since it has an audio chip that was apparently also used on the AWE64. Furthermore, it has two memory sockets that allows us to install 32MB in form of 30-pin SIMM modules. This memory can be utilized to install sound fonts which will elevate your midi…
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Fixing the S3 "Brightness Bug": A Deep Dive into the Pedestal Bit BIOS Mod

How Quake III Broke the Rules of Math: The Story of the Fast Inverse Square Root

Hardware

Intel Pentium F00F Bug

From time to time, we get to know that our CPUs are not bug-free. The terms ‘Spectre’ and ‘Meltdown’ comes to mind. However, there are many more flaws that sneak into a final production of a microprocessor. Have you heard of the ‘FDIV’ bug in the original Pentium? This bug resulted erroneous floating point calculations. Intel fixed this flaw and offered…
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Fixing the S3 "Brightness Bug": A Deep Dive into the Pedestal Bit BIOS Mod

PCChips M915i - Socket 3 with fake cache!

Hardware

SECC Voltage configuration using resistors

Intel released Pentium II and Pentium III processors on the Single Edge Contact Cartridge – or SECC. This type of package was required because it allowed to move the level 2 cache chips from the motherboard closer the to silicone die. Intel wasn’t able to integrate the L2 cache into the CPU die yet. Later Pentium III models, also known as Coppermine, integrated 256kb of level 2 cache…
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Fixing the S3 "Brightness Bug": A Deep Dive into the Pedestal Bit BIOS Mod

PCChips M915i - Socket 3 with fake cache!

Hardware

Fake ASUS P2B Rev. 1.04?

Some time ago, someone offered me six P2B motherboards for restoration. Since I got them for a relatively good price, I didn’t mind taking them off their hands. Unfortunately, I wasn’t immediately able to work on the boards due to other projects that I thought were more interesting. Little did I know that those six boards may be more interesting than I thought! Based on a…
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Fixing the S3 "Brightness Bug": A Deep Dive into the Pedestal Bit BIOS Mod

PCChips M915i - Socket 3 with fake cache!

Hardware

Sound Blaster 2.0 - C/MS Upgrade

A guide to upgrade the Sound Blaster 2.0 with chips that enable the Creative Music System (C/MS). Sound cards with ISA interface trigger that one nostalgic feeling in me and remain that one piece of technology I have fond memories of. That may be surprising since this was also the time when you had to constantly fight with resource conflicts: DMA, IRQ, and I/O ports are just a few of…
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Fixing the S3 "Brightness Bug": A Deep Dive into the Pedestal Bit BIOS Mod

PCChips M915i - Socket 3 with fake cache!