Re: Amd Am486 DX-40 with missing pin
Posted on 2020-02-28, 12:49
Well I tried the cpu as predicted I got black screen.
Re: Amd Am486 DX-40 with missing pin
Posted on 2020-02-28, 12:55
How does this type of damage occur? Is it from trying to pry them out of non-ZIF sockets? Most likely dropped from high place and landed on a corner.
Re: Amd Am486 DX-40 with missing pin
Posted on 2020-02-28, 13:00
Most likely dropped from high place. Most likely not. Left damaged CPU would be possible in theory, but only if it hit the ground exactly at that corner and did not fall too high. Right damaged CPU: no way that this can ever happen by dropping. Seems much more likely that this is both a screwdriver …
Re: AMD stopped producing Radeon VII (solved)
Posted on 2020-02-28, 13:01
Re: Amd Am486 DX-40 with missing pin
Posted on 2020-02-28, 15:12
The Serpent Rider wrote on 2020-02-28, 12:55: How does this type of damage occur? Is it from trying to pry them out of non-ZIF sockets? Most likely dropped from high place and landed on a corner. or Heatsink removal with a lever
Re: Amd Am486 DX-40 with missing pin
Posted on 2020-02-28, 15:55
I got mine cheap(ish), knew about the missing pins, saw the damage, decided to take them anyway for... experimenting. And that's what I'm gonna do when I have some spare time. I don't expect it to be easy (or to work at all), I imagine it's very crowded under that die cap and I also think the pads …
Re: AMD 5x86@160mhz., Media Vision PAS16.
Posted on 2020-03-01, 16:04
Interesting machine. I had almost this exact computer from 1995 to 1997 (I posted my 1997 machine in a different thread). Mine was a 5x86 133 with 16 MB RAM, an ATI Graphics Xpression video card, a 540 MB hard drive, and an 8x CD-ROM Drive. And a Pro Audio Spectrum 16. I think I essentially built …
Re: Looking for AMD 287 diskette
Posted on 2020-03-05, 09:59
Yes. I was mostly interested in fractal generator. It takes really long time on a 286-16 with 287. I'll use it to do some benchmarks. I wrote my own benchmark that's compatible with 286 and makes use of 287. It is meant to compare CPU/NPU speed and guess what, it draws fractals :) It's still WIP …
Re: AMD 760 and KT133A release date evidence (2000 or 2001?)
Posted on 2020-03-09, 02:43
My Newegg order history says I bought my Iwill KK266 KT133A MB in May 2001.
Re: AMD 760 and KT133A release date evidence (2000 or 2001?)
Posted on 2020-03-09, 04:11
I think KT133A motherboards became more widely availlable near end of January 2001 because that is when other review sites started getting hands on them with the final bios. Also they started reviewing half a dozen different boards within just 2 weeks or so.
Re: AMD 760 and KT133A release date evidence (2000 or 2001?)
Posted on 2020-03-09, 10:56
I was looking at KT133A back then. I remember the Asus A7V133 was avaliable in mid January 2001. I wanted Abit though and bought the Abit KT7A in late January. I'm pretty sure I saw the Asus a7M266 in stock at that time.
Slow AMD K6-2+ 550 MHz performance?
Posted on 2020-03-21, 19:28
Hi all, I was watching Phil's video , where he benchmarks the K6-2+ 550 MHz, and I realized that my numbers are extremely low, compared to his. Tested with Voodoo 3 / GeForce 4 Ti 4200 and my results are (at most): GLQuake timedemo: 82 FPS Quake 2 timedemo: 44 FPS!! (in Phil's video even the normal …
Re: Slow AMD K6-2+ 550 MHz performance?
Posted on 2020-03-21, 19:44
Cpu multiplier jumper?
Re: Slow AMD K6-2+ 550 MHz performance?
Posted on 2020-03-22, 07:00
It's at 5.5, of course. I've already verified everything with Aida64, CrystalCPUID, etc. The CPU is running at 550 MHz, RAM is at 100 MHz CL2.
Re: Slow AMD K6-2+ 550 MHz performance?
Posted on 2020-03-22, 08:17
Your not exceeding cacheable ram limits are you? VIA MVP3 with Write Back cache strategy set in BIOS With 512 kB Level 2 Cache, 64 MB are cacheable With 1024 kB Level 2 Cache, 128 MB are cacheable With 2048 kB Level 2 Cache, 256 MB are cacheable VIA MVP3 with Write Through cache strategy set in BIOS …
Re: Slow AMD K6-2+ 550 MHz performance?
Posted on 2020-03-22, 08:35
Ok, I wasn’t sure how that worked exactly for K6-2+ /K6-3 . I thought if you were still using onboard L2 then on-die becomes L3 cache.
Re: Slow AMD K6-2+ 550 MHz performance?
Posted on 2020-03-22, 08:37
Yes, it becomes L3. But on a K6-2/3+, even if you disable the motherboard cache, the performance impact is minimal.
Re: Slow AMD K6-2+ 550 MHz performance?
Posted on 2020-03-22, 09:45
OK... problem..... solved?! You guys won't believe this: it was because of the... USB 2.0 PCI card. :-o I found these charts and I thought that the Quake 2 software mode benchmarks were particularly of interest, since I could eliminate potential GPU related issues (I did suspect all along that this …
Re: Slow AMD K6-2+ 550 MHz performance?
Posted on 2020-03-22, 09:56
Probably the USB card uses the same IRQ as the video card. On all systems I've built with an USB card added, it seems to always prefer using the VGA IRQ.
Re: Slow AMD K6-2+ 550 MHz performance?
Posted on 2020-03-22, 10:07
Yes, but why would it affect the software mode? Based on everything I've seen, the CPU performance is affected, not particularly the video card.
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