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Help with K6-2 450Mhz *slow*

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First post, by theelf

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Hi, i have a sis 5595 motherborad, integrated AGP video, ISA+PCI, 128mb PC100 ram, and a K6-2 450mhz. The CPU is running at 100x4.5

i check this
The Ultimate 686 Benchmark Comparison

and if i dont understand bad, in a quake 640x480 timedemo1, a K6-2 450 get like 19fps, but i get 11.2fps

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another software i use A LOT, is fusion emulator, to emulate MacOS7 and 8

I have a Celeron 333mhz mendocino, and mac Wolfenstein 3D in Fusion run pretty well, and in K6-2 is very slow

Here is my bios settings

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I tried a S3 PCI graphic card, but no difference

Im stuck... or the 686 benchmark is wrong, or my K6 have something bad. Because in 686 benchmarks, i can see a K6-2 450 is more or less than a P2 350-400 in fpu, and similar to P2 in integer... no?¿

thanks

Reply 1 of 28, by Spitz

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Can You post what motherboard You have? SiS 5595 is only a chipset. I want to know more about GPU and others things. I do have an ALi mobo with same CPU, maybe I could do some comparision.

What version of q1 was it? Under win? Under dos? Make another few benchmarks tests so I can compare it with my spec (aiming for cpu).

Well... I miss 80/90s ... End of story

Reply 2 of 28, by Doornkaat

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SiS 5595 is just a southbridge I think.
I vaguely remember there was an issue with some SiS S7 chipset with integrated graphics that would effectively cut memory performance in half because the graphics core and CPU shared the same bus or something.

Reply 3 of 28, by theelf

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Spitz wrote on 2022-12-19, 17:38:

Can You post what motherboard You have? SiS 5595 is only a chipset. I want to know more about GPU and others things. I do have an ALi mobo with same CPU, maybe I could do some comparision.

What version of q1 was it? Under win? Under dos? Make another few benchmarks tests so I can compare it with my spec (aiming for cpu).

Hi, thanks for reply, the computer is this one, really dont know what otherboard have

https://www.youtube.com/watch?v=T7Y8anP4poA

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About OS, i use DOS, and quake 1.06 for testing

What benchmarks do you want I do?

quake 1 320x200 demo1 - 49fps 640x480 11fps
3dbench 2.0 give me 231
shareware doom 1.9 no sound, with 1 frame+health bar, demo3 149fps

Doornkaat wrote on 2022-12-19, 17:56:

SiS 5595 is just a southbridge I think.
I vaguely remember there was an issue with some SiS S7 chipset with integrated graphics that would effectively cut memory performance in half because the graphics core and CPU shared the same bus or something.

Hi thanks, about integrated GPU, like i said, itested a S3 PCI and no difference (in fact the s3 is a little slower than integrated gpu)

I tested a matrox and a nvidia card, no difference

Reply 4 of 28, by waterbeesje

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May there be some timing issues? Is the cache turned on for sure (cachechk)? Hoe does it respond to only 32or 64 MB ram?

The graphics card should not be the problem.
My ss7 testing equipment consists of a Pc Chips M577 (AGPro = mVP3 chipset) and SiS6326 graphics card with 64MB ram.
The board is notoriously slow for a super 7. The graphics are basically the non-integrated version of your chipset.
With some K6-2 @450MHz:
Quake 320: 59,7 fps, 640: 18,5 fps.
Speedsys shows 510 CPU points

I also have a Jetway J-TX98B with SiS 5598 chipset.
With k6-2 @250 (83x3):
Quake 320: 40,4 fps; 640: 8,9 fps
Speedsys:282 CPU points

Stuck at 10MHz...

Reply 5 of 28, by rmay635703

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Get some clk 2 PC133 sdram

Reduce your multiplier than use cpucool to increase your FSB to 133mhz

133x3.5 should “make up” for the glacial memory bandwidth

And if you can get the onboard video to disable a discrete higher end voodoo or GeForce card should make a difference.

PCCHIPS boards were notoriously slow with very few ways to optimize in the bios.

Reply 6 of 28, by theelf

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waterbeesje wrote on 2022-12-19, 19:34:
May there be some timing issues? Is the cache turned on for sure (cachechk)? Hoe does it respond to only 32or 64 MB ram? […]
Show full quote

May there be some timing issues? Is the cache turned on for sure (cachechk)? Hoe does it respond to only 32or 64 MB ram?

The graphics card should not be the problem.
My ss7 testing equipment consists of a Pc Chips M577 (AGPro = mVP3 chipset) and SiS6326 graphics card with 64MB ram.
The board is notoriously slow for a super 7. The graphics are basically the non-integrated version of your chipset.
With some K6-2 @450MHz:
Quake 320: 59,7 fps, 640: 18,5 fps.
Speedsys shows 510 CPU points

I also have a Jetway J-TX98B with SiS 5598 chipset.
With k6-2 @250 (83x3):
Quake 320: 40,4 fps; 640: 8,9 fps
Speedsys:282 CPU points

Hi! thanks for testing

here is my speedsys, and cachechk

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Everything looks fine, but quake is slower than you by a good margin, and Fusion is TOO slow compared to Mendocino 333, like less half speed

Im stuck here....

rmay635703 wrote on 2022-12-19, 19:36:
Get some clk 2 PC133 sdram […]
Show full quote

Get some clk 2 PC133 sdram

Reduce your multiplier than use cpucool to increase your FSB to 133mhz

133x3.5 should “make up” for the glacial memory bandwidth

And if you can get the onboard video to disable a discrete higher end voodoo or GeForce card should make a difference.

PCCHIPS boards were notoriously slow with very few ways to optimize in the bios.

Sadly motherboard look have 66,75, 83 and 100mhz for what i guess, without manual is difficult, i just tested all jumpers

The onboard video is same or faster than all PCI card i tested, a voodoo or a nvidia I dont think will be much faster anyways.

Reply 7 of 28, by rmay635703

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theelf wrote on 2022-12-19, 23:14:
Hi! thanks for testing […]
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waterbeesje wrote on 2022-12-19, 19:34:
May there be some timing issues? Is the cache turned on for sure (cachechk)? Hoe does it respond to only 32or 64 MB ram? […]
Show full quote

May there be some timing issues? Is the cache turned on for sure (cachechk)? Hoe does it respond to only 32or 64 MB ram?

The graphics card should not be the problem.
My ss7 testing equipment consists of a Pc Chips M577 (AGPro = mVP3 chipset) and SiS6326 graphics card with 64MB ram.
The board is notoriously slow for a super 7. The graphics are basically the non-integrated version of your chipset.
With some K6-2 @450MHz:
Quake 320: 59,7 fps, 640: 18,5 fps.
Speedsys shows 510 CPU points

I also have a Jetway J-TX98B with SiS 5598 chipset.
With k6-2 @250 (83x3):
Quake 320: 40,4 fps; 640: 8,9 fps
Speedsys:282 CPU points

Hi! thanks for testing

here is my speedsys, and cachechk

Ko6.gif

IMG_20221220_001320.jpg

Everything looks fine, but quake is slower than you by a good margin, and Fusion is TOO slow compared to Mendocino 333, like less half speed

Im stuck here....

rmay635703 wrote on 2022-12-19, 19:36:

Sadly motherboard look have 66,75, 83 and 100mhz for what i guess, without manual is difficult, i just tested all jumpers

The onboard video is same or faster than all PCI card i tested, a voodoo or a nvidia I dont think will be much faster anyways.

Your motherboard should have an auto or soft jumper option.

Even if it doesn’t you can’t jumper 133, it needs to be changed using software

We really need photos of your board so we can identify what it is.

I had a PCCHIPS m598 and a GeForce 2 pci made a big difference in 3D gaming

Reply 8 of 28, by drosse1meyer

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is this really that far off? the game is largely CPU bound in software mode

with a p2-400, iin DOS, i get 18 FPS @ 640x480

80 FPS @ default resolution

sound on, 100mhz CL2 RAM, no special video drivers/tools loaded (ATI Rage AGP)

P1: Packard Bell - 233 MMX, Voodoo1, 64 MB, ALS100+
P2-V2: Dell Dimension - 400 Mhz, Voodoo2, 256 MB
P!!! Custom: 1 Ghz, GeForce2 Pro/64MB, 384 MB

Reply 9 of 28, by theelf

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rmay635703 wrote on 2022-12-19, 23:26:
Your motherboard should have an auto or soft jumper option. […]
Show full quote

Your motherboard should have an auto or soft jumper option.

Even if it doesn’t you can’t jumper 133, it needs to be changed using software

We really need photos of your board so we can identify what it is.

I had a PCCHIPS m598 and a GeForce 2 pci made a big difference in 3D gaming

I tested the most powerful PCI card i have a Geforce 4MX and i dont see any difference with the integrated SIS, is same, and Fusion dont get any advantage neither with vesa driver. The onboard sis 6326 in fact is very very fast

I dont know any software to change FSB

Last edited by theelf on 2022-12-19, 23:54. Edited 1 time in total.

Reply 10 of 28, by theelf

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drosse1meyer wrote on 2022-12-19, 23:46:
is this really that far off? the game is largely CPU bound in software mode […]
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is this really that far off? the game is largely CPU bound in software mode

with a p2-400, iin DOS, i get 18 FPS @ 640x480

80 FPS @ default resolution

sound on, 100mhz CL2 RAM, no special video drivers/tools loaded (ATI Rage AGP)

My mendocino at 333mhz do 19.4fps at 640x480, i really see a big difference from 11.2 i get in K6-2, and Fusion is like half speed the mendocino too

I cant compare since i dont have any K6-2 or K6-3, i just check 686 and other benchmarks that numbers say a K6-2 is no muuchh slower than a P2, but i get like half speed a P2 with my K6-2

Reply 11 of 28, by mwdmeyer

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The SiS board/chipset is probably the issue. They are very slow.

You can see here:
https://www.vogonswiki.com/index.php/Super_So … et_7_Benchmarks

E.g
Biostar M5SIB SiS 5598 - 512K/L2 Cache - K6/2 300MHz 66MHz FSB - 19.7fps
Soltek SL-54U5 - 512k/L2 Cache - K6/2 300MHz 66MHz FSB - 25.3fps
Soltek SL-54U5 - 512k/L2 Cache - K6/2 300MHz 100MHz FSB- 30.8fps

Last edited by mwdmeyer on 2022-12-20, 00:34. Edited 1 time in total.

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Reply 12 of 28, by theelf

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mwdmeyer wrote on 2022-12-20, 00:16:
The SiS board/chipset is probably the issue. They are very slow. […]
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The SiS board/chipset is probably the issue. They are very slow.

You can see here:
https://www.vogonswiki.com/index.php/Super_So … et_7_Benchmarks

E.g
Biostar M5SIB SiS 5598 - 512K/L2 Cache - K6/2 300MHz 100MHZ FSB - 19.7fps
Soltek SL-54U5 - 512k/L2 Cache - K6/2 300MHz 66MHz FSB - 25.3fps
Soltek SL-54U5 - 512k/L2 Cache - K6/2 300MHz 100MHz FSB- 30.8fps

I cant see any benchmark to compare M2 and M5 for example, that have K6-2, in software

Ok edit, i see a demo Final Reality, i check and look a CPU demo

M2 Biostar M5SIB SiS 5598 - 4.5x66 300mhz score 1.88
M5 Soltek SL-54U5 - 3x100 300mhz score 2.72

This is like 1.5 slower, but sadly have different bus speed both benchmarks, anyways, yes, look sis chipset is maybe problem, but still not sure, since FPS is 66 vs 100 in mine

Last edited by theelf on 2022-12-20, 00:33. Edited 2 times in total.

Reply 14 of 28, by theelf

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mwdmeyer wrote on 2022-12-20, 00:23:

Sorry this is quake 3 openGL.

Ok i edit, because i found something to compare in benchmark you post, thanks

The problem the demo Final Reality is windows only, i can check in my system

Reply 15 of 28, by mwdmeyer

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Yeah I have Quake 3 for both:

Biostar M5SIB SiS 5598 - 512K/L2 Cache - K6/2 300MHz 66MHz FSB - 19.7fps
Soltek SL-54U5 - 512k/L2 Cache - K6/2 300MHz 66MHz FSB - 25.3fps

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Reply 16 of 28, by theelf

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mwdmeyer wrote on 2022-12-20, 00:35:

Yeah I have Quake 3 for both:

Biostar M5SIB SiS 5598 - 512K/L2 Cache - K6/2 300MHz 66MHz FSB - 19.7fps
Soltek SL-54U5 - 512k/L2 Cache - K6/2 300MHz 66MHz FSB - 25.3fps

Thanks, i can say in worst case, the SIS board is 1.28 times slower than a good board. Sadly we dont know is because board or just sis dont like much 3dfx card for example

But anyway, even f 1.28 times slower, 11.2fps i get in quake * 1.28 = 14.3

Still slower than 19.6fps the K6-2 450 get in 686 benchmark

Reply 17 of 28, by mwdmeyer

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Yes hard to say, maybe Quake 1 works differently too.

Quake 3 likes lots of throughput, while Quake 1 is very FPU/Pentium1 focused.

I have also seen the Ali chipset have big issues with 3dfx cards. So that is possible. Although my testing was with Voodoo 3 PCI.

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Reply 18 of 28, by Intel486dx33

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Here is my K6-lll+@500mhz. Benchmarks
For comparison.

Link:
Re: Ultimate AMD K6-3-500mhz.

Link:
Re: AMD K6-3+@550mhz., Voodoo-3000

I perform a fresh install of Win98se
Reboot
Then install SP3 basic update files
Reboot
Then install SP3 DirectX update
Reboot
Install USB update
Reboot.
Install Voodoo 3 drivers CD

Link to SP3 ( u98sesp3.exe ) :
https://www.philscomputerlab.com/windows-service-packs.html

Reply 19 of 28, by theelf

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Intel486dx33 wrote on 2022-12-20, 01:26:
Here is my K6-lll+@500mhz. Benchmarks For comparison. […]
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Here is my K6-lll+@500mhz. Benchmarks
For comparison.

Link:
Re: Ultimate AMD K6-3-500mhz.

Link:
Re: AMD K6-3+@550mhz., Voodoo-3000

I perform a fresh install of Win98se
Reboot
Then install SP3 basic update files
Reboot
Then install SP3 DirectX update
Reboot
Install USB update
Reboot.
Install Voodoo 3 drivers CD

Link to SP3 ( u98sesp3.exe ) :
https://www.philscomputerlab.com/windows-service-packs.html

Your 3dbench is super slow, compared to this

3DBENCH CPU Benchmark Database

A K6-2+ 500 is something like 600 score

But yes, my 450 get 231 score in 3dbench....

I dont understand why, maybe 3dbench is not reliable anymore for fast CPus