even with just the on-chip cache, the U5 outperforms a typical 486 by about 20%Īt 33MHz cache is 67.4 MB/s and RAM 30.6 MB/s (0WS), and at 40MHz it goes up to 81.0 MB/s / 36. mobo runs fine on a single 72-pin 16MB FPM stick Extreme Tweaker Main BIOS SETUP UTILITY Advanced Power Boot Tools Exit CPU Configuration Chipset Onboard. CPU seems to work well at 40MHz with zero-WS RAM 61 (C)Copyright 1985-2008, American Megatrends, Inc. internal cache seems to cover only the first 4MBs of RAM (that's what CACHECHK reports) BIOS has RAM waitstate and ISA clock divider selection BIOS has HDD detection, seems to support HDDs >504MB by allowing head count to be greater than 16 I got it to boot though so with keyboard working I run some tests - here's quick notes before it gets disassembled: It's in a pretty sorry state and I only bought it for parts, but decided to try and fix it to see (with a POST card) if the CPU actually works. This seems to be a cheap mobo with minimal BIOS options. Sorry for ebay watermarked photo, I'm unable to make any better one at the moment so the seller's photo will have to do. Also, please do not force shut down during the update process to prevent any issues. Note: Please make sure that the AC adapter is plugged in when updating the BIOS on your device. The computer will auto-reboot and continue the BIOS update process. BIOS string: 12/08/94-UMC-498GP-2C4X6S21-00 Please be patient till the BIOS update process is completed.
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