There's not a lot of benefit to it. AFAIK, all of the windows API callbacks use 64bit ints/longs instead of 32bit, so windows uses alot more memory. I think standard WinXP 32-bit uses 100-150MB RAM. The 64-bit version must use at least 200+ MB... If you only have 256-512MB it's lose-lose.

ruthan wrote on 2021-04-19, 07:18: More back in the era would be zip drive... CompactFlash came from IBM Microdrive's... a mini spinning hard disk in the same size... 100% sure they're still compatible

Athlons have ~1-3W difference between 700-750Mhz... https://en.wikipedia.org/wiki/List_of_AMD_Ath … ktop_processors If you want less heat possible, the 1.6v versions go all the way down to 31W.

https://www.vogons.org/viewtopic.php?f=63&t=68361 The 1994 video card in the link is very different from a 1996-1997 one, even with a 1994 chip. I tested two 16-bit ISA cards, a Cirrus Logic CL-GD5429, and a Trident 8900D-R, both 1997 PCB, 1994 chip, 1996+ RAM. They were the same speed in DOS and …

There may also be another problem but I don't think the RAM chips are fast enough. The ET4000 manual says "the SCLK's [System Clock] cycle time should be equal to the CAS low pulse width and less than 25ns." - Page 24, http://dosdays.co.uk/media/tsenglabs/Tseng_Labs_ET4000_Graphics_Controller_1990. …

The manual for the AP7363 Volt Regulator recommends to place 10uF's on both sides as close as possible to 5v-in and 3v-out to "ensure stability". So I'm going that route, and placing a few 0.1uFs on specific pins. I'll post results in a few weeks.. I want to order & test it before posting photos/ …

I'll be interested to see your noise levels on Vin and Vout when it is finished. If you have any extra units, I'd be interested in comparing them. Which VRM did you go with? Are you planning on obtaining any quantity of the SXL2 CPUs for binning purposes? It seems like people are buying these up …

I've reported on the BARB performance drop somewhere on Vogons - it was very small, in the ballpark of 1-3% in DOOM, if I recall correctly. Will your PCB design be a whole new ground-up approach, or an adaption from a design already presented in this thread? Slow Refresh/Hidden refresh may help to …

I'm trying to get my own PCB design, components etc working by the end of the year. I'll post details if it works .. and put spares, instructions etc on eBay. All of the info above is all the theory I have... so hopefully that helps someone

I have no idea how to test for how HOLD# is used.. but if you enable BARB and walk away (on all motherboards) there may be a performance hit as the internal cache is refreshed too often. Most boards have a MEMW# line, so you can do three tests. 1) Leave MEMW# & FLUSH# on the CPU unconnected, turn on …

I found all of the Cache Flush, Pipelining support (NA pin), and ADS/LOCK pins to be completely motherboard independant. This is written for both PCB designer & end user. PCB solution underneath. 1) TI486SXL(C)2 Clock Doubling is enabled by software. "Cyrix.exe -cd" 2) TI486SXL(C) L1 Cache is …

I gave it a whizz from 33mhz to 40: that worked fine, but the moment clock doubling was switched on it hung. There's a few lines in the manual about stability and using pullup resistors. Some mother boards may have them, some not... I'm looking through the whole manual as I'm building my own …

I recently just sold my TNT2 Ultra. It did Quake 3 @ 1024x768 max settings at 36 FPS average (demo001). Playable but better at 800x600. I went from Quake 2 to Quake 3, Half-life with no graphics card update... The best value cards for AGP though was probably the Geforce 4 MX 440. 128-bit, DDR RAM, …

I have this in the 512MB version. I would agree it's the 256MB one.. The 512 has a huge black heat sink over everything and a fan in the middle. Did a quick search and there's a few BIOS's on techpowerup... both are the same https://www.techpowerup.com/vgabios/39465/39465 https://www.techpowerup.com …

Yeah, I got mine all working physically then am kinda stuck at figuring out the registers lol. My clock doubling experience was the same. But to be fair I have it in my closet at the moment because I have been playing with my blue and white g3 mac. Do be detailed in what you find out with the …

What do you guys think - first target the central regions with large 1210 sized ceramics, or target the rest of the PGA pins What does the Volt Reg manual say for capacitors on Vout? 2.2uF, 100nF?... If it's not stable it will transfer all through the CPU. Also, every via/trace hole acts as a mini …