Navigate to the Video section of the PCem's menu which is right below its status bar. Here you will see an entry called Render driver. Try different render drivers to see which one works best for you. Another thing to try: in your Windows Task Manager navigate to the Details tab. Look for the pcem ...

My CPU is AMD Ryzen 7 5700U with Radeon Graphics @ 1.80 GHz. I have a RAM of 16.0 GB and my OS is Windows 11. I have a laptop. It sounds like you're thermal throttling because that chip should be capable of up to 4.3Ghz How can I fix that? There's not much you can do with a laptop unless you try ru...

TonyTran wrote: ↑Tue 18 Jan, 2022 10:57 pm My CPU is AMD Ryzen 7 5700U with Radeon Graphics @ 1.80 GHz. I have a RAM of 16.0 GB and my OS is Windows 11. I have a laptop.

It sounds like you're thermal throttling because that chip should be capable of up to 4.3Ghz, about enough to do a Pentium MMX 200

TonyTran wrote: ↑Tue 18 Jan, 2022 4:26 am

CryptidWorks wrote: ↑Tue 18 Jan, 2022 3:41 am What are your PC specs and what CPUs have you tried to emulate?

I used most Pentium CPUs and some AMD CPUs. What do you mean by "your PC specs"?

What Mike said

What hardware is in your actual PC you're running PCEM on

What are your PC specs and what CPUs have you tried to emulate?

R5-5600X (PBO enabled, all-core turbo of 4.5Ghz, single-threaded 4.6Ghz) DEEPCOOL GAMMAXX 400(With Coolermaster 120mm Sickleflow fans) 16GB 2400Mhz DDR4 MSI MPG B550 Gaming Plus Mobo RTX-2070 Windforce Full ATX Case with Dual Intake and Dual Exhaust Windows 10 Professional (latest update) Via gettin...

I had been vaguely pondering the idea of running the Voodoo emulation as a compute shader. Might be unworkable, but possibly worth considering for some point in the distant future. Might get PCEM up and running later 9x games on systems that are running fast quad cores and entry level GPUs that can...

I'd like to post a final update that using that "hack" of forcing PCEM to run without SMT I now have a Pentium II 233Mhz with a Voodoo 3 3000 running at 100% speed on an R5-5600X. I think I've discovered something beneficial here.

unreal9010 wrote: ↑Sat 15 Jan, 2022 10:41 pm Journeyman Project 3 may be good for benchmarking as it is heavily Quciktime dependent.

I've been using The Mummy: Return of the Pharaoh. The game uses quicktime video files for literally everything, so it hammers the virtual CPU hard.

In theory, your CPU should do at least Pentium II 233 if not 266 flawlessly considering that the upper limit of flawless operation on my i7 6700 non-K is Pentium MMX 166. I can play several games at 100% on Pentium II 233 and some 3D-accelerated ones (e.g. The Need for Speed III) work most of the t...

Ryzen 5 3500 U is unfortunately too slow for proper Pentium MMX 233 emulation which is why you're getting stuttering sound. Try selecting Pentium MMX 166. OP might be able to get away with a Pentium 200, that's the limit of what I could do on my 3600X and currently can do on my 5600X. 233Mhz is def...

So, I'm running a 5600X over here and I can emulate up to a Pentium 200 with a Voodoo 3 3000 flawlessly. However, when I try to step up to a Pentium 233 I'm noticing PCEM is actually leaving a lot of power on the table. My CPU can sustain a clock speed of 4.5Ghz all core when it's turbo kicks in but...

Good the see the project has found a new dev with Sarah's blessing and been resurrected.

I look forward to seeing what kind of improvements and features future builds bring

It sounds like you're describing a horrible complicated way of implementing a frame rate lock. Something that doesn't work because the reasons CPU speed can break old games is more complex than that. Like what happens in the 7th Guest where access to a CPU that's signigantly faster than it was desig...

Did you do some footwork to see if it's real behavior?

It's not many but there actually is a couple odd DOS games that pitch a fit on Windows 9x operating systems.

If you have a different bug, it is a general forum etiquette to make a different thread for it. "Windows 98SE Freezes" seemed in the ballpark to me =p A reboot freeze typically happens for much different reasons that freezes when playing specific games. OP of the thread here Stealth is we...

It's about experimenting and tuning to figure what CPU you go into most things without noticeable slowdown with. For me that's so far turned out to be a Pentium MMX 200Mhz on my 3600X that hits 4.1Ghz PBO all core. 233Mhz if I'm not planning on running anything that uses Quicktime that particular se...

Posted this in my thread as well but there seems to be a bug in the Socket 7 CPUs where they take a lot more host CPU than they should and lag when decoding Quicktime video of any kind. Pentium II/233 works flawlessly in Quicktime heavy games Pentium MMX 233 has noticeable slowdown and I have to dro...

Re: mouse: I ended tweaking the mouse acceleration options in windows 98 to the minimum. I am assuming that the problems are currently a double-acceleration caused from the real OS + emulated OS. Also, I am not sure if it is correctly compensating for high-dpi or fullscreen. (Never checked). Back w...

At a guess, probably the same issue as http://pcem-emulator.co.uk/phpBB3/viewtopic.php?f=3&t=3577 So I've done some testing and confirmed it's a problem with the faster Socket 7 CPUs. The Pentium II/233 works flawlessly in Quicktime content. The Pentium MMX 233 has noticeable slowdown in the sa...

leilei wrote: ↑Fri 01 Jan, 2021 8:17 pm Win98SE doesn't come with any AudioPCI 128/ES1371/ES1373 drivers (win98se drivers are generally current to Dec 1997+DirectX 6.1). They started adding those in Windows 2000 and Me.

Then how come the disc works fine when the installer asks for it on other motherboards?

SarahWalker wrote: ↑Fri 01 Jan, 2021 10:35 am I'll have a look. As a workaround, try disabling power management in the bios.

Already disabled by default

I'm trying to use the Epox P55 motherboard to test something and ran into this issue where it can't find the drivers the Soundblaster 128 needs on the WIndows 98 SE ISO. This particular failure only happens when I try to build a system with this particular motherboard. The ASUS boards also get stuck...

Update again

It is not fixed

However with the fact it doesn't happen on the Pentium II/233 I can confirm it's a specifically with the MMX CPUs on Socket 7.

Here's configs from one of my machines, to.

SarahWalker wrote: ↑Thu 31 Dec, 2020 2:40 pm What model / motherboard are you emulating for that setup?

The FIC VA-503+ is the one I happened to use but it was also doing it with the Gigabyte Slot 1 board when I tested a Pentium II.

Host system: MSI x570-A Pro Motherboard Ryzen R5-3600X (Precision Boost enabled, hitting 4.1Ghz all-core and up to 4.3Ghz single core) Deepcool GAMMIX 400 CPU Cooler 16GB DDR4 (2400Mhz) RTX-2070 Windforce Edition (Max boost around 2Ghz) Windows 10 Professional --------------------------------------...

Having used this for a while now I can say that Windows 98 runs a lot more stable with all the weird glitches and visual problems that could happen in previous versions ironed out. I even got it to launch the explorer on the CosmiCorp 1000 Best Windows Games disc without issues when that used to com...

I'm running an MMX 233 and a Voodoo 3 3000.

Some 2.5D games like Outlaws and Doom 95 have surprisingly mediocre FPS on anything much higher than 320x240 and I was wondering if that was normal for the hardware or a PCEM bug.

One ongoing thing I've noticed in PCEM is issues with the mouse movement feeling weird like the acceleration or scaling isn't quite right. At least in Windows 98SE. Is there a fix or setting for that I'm missing? Did mouse acceleration exist in Win98? you might want to turn it on/off. It's in Win9X...