how to set the cpu to pci latency to zero?

Discussion relating to Socket 7 hardware.
Jim
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Post by Jim »

@ KachiWachi : K, I just redownloaded the ALi PCR Files from the downloads section here at K6Plus. I then extracted the 10B91541.PCR file from the RAR File download. It has the same problem of not displaying properly w/ notepad.

I then took your corrected version and used Norton "File Compare" to compare it to the version posted a long time ago by Mr Toastz in the software and tweaking section.

http://k6plus.com/index.php?name=PNphpB ... b233f2a815...

The load of this thread stops incomplete so I can't give the complete address; but the PCR File he posted, (on page 2 of the Software and Tweaking section), is also from Rob Ruck and it differs from the one in the downloads section, though the differences are minor variations in form.

The Norton File Compare results were as follows :

Image
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
ATI 9000 aiw Radeon AGP
SB Audigy 1 MP3 Sound
CMD 649 IDE Controller
NEC USB 2 Card
Guest

Post by Guest »

yes,

my error message is the vendor/product id differs one. actually i downloaded the pcrfiles for via mvp3, not the ones for via apollo mvp3 ... is there any difference? ... coudnt try the new ones yet, ill tell you later.

the md to hd pop change boosts the machine by 15% as well as the dram start cycle switch to "normal". and seems to be stable ...

thx anyway
Jim
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Post by Jim »

@ Our guest : WPCredit will tell you which is the appropriate PCR File if when you open WPCredit, you click the EDIT Menu, then from that menu click DEVICE. That will open a drop down menu which displays the various "Devices" you can tweak; and the PCR Files required to do so.
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
ATI 9000 aiw Radeon AGP
SB Audigy 1 MP3 Sound
CMD 649 IDE Controller
NEC USB 2 Card
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KachiWachi
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Post by KachiWachi »

For me on W2K, and using Wordpad, RTF saves the font information in a header, so this would not work.

As for the file differences, the "text-to-smiley" forum feature that is causing the differences.

[40:0] -> [ 40:0 ] (spaces added front and rear to preserve actual text)


File conversion information from my setup -

Original file (PCR) = 9.94 KB (10,183 bytes)

XP MS Word (as text) = 10.1 KB (10,436 bytes)

W2K Wordpad MS-DOS = 10.1 KB (10,434 bytes)
W2K Wordpad Plain Text = 10.1 KB (10,434 bytes)

W2K Wordpad RTF = 11.2 KB (11,547 bytes)
W2K Wordpad Unicode = 20.3 KB (20,870 bytes)
Moderator - Wim's BIOS

PC #1 - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), 128 MB EDO. BIOS patched by Jan Steunebrink.
PC #2 - Amptron PM-7900 (M520), i200 non-MMX, 128 MB EDO
PC #3 - HP8766C, PIII-667, 768 MB SDRAM
PC #4 - ASUS P3V4X, PIII-733, 256 MB SDRAM
PC #5 - Gateway 700X, P4-2.0 GHz, 768 MB PC800 RDRAM
PC #6 - COMPAQ Evo N1020v laptop, P4-2.4 GHz, 1 GB PC2700 DDR
PC #7 - Dell Dimension 4600i, P4-2.8 GHz, 512 MB PC2700 DDR
PC #8 - Acer EeePC netbook, Atom N270 @ 1.60 GHz, 1 GB RAM
PC #9 - ??? ;)
Jim
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Post by Jim »

Thankyou. I gather then that "Rich Text" won't work as a PCR File.
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
ATI 9000 aiw Radeon AGP
SB Audigy 1 MP3 Sound
CMD 649 IDE Controller
NEC USB 2 Card
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Nohr
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Post by Nohr »

I've updated the ALi PCR download with the updated file. Thanks KachiWachi. :)
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kalabok
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Location: germany

mvp3c2 runs a bit faster ...

Post by kalabok »

ok,

the guest is now one of you, guys.

to hell with the error message. the tweaking of the system runs well even with it. as i wrote just now, ive got my mvp3c2 to run at 133mhz, and i was doing just some everest benchmarks on it. just amazing.
booting up with k6-2+ @ 133*4,5 (with external cache disabled) and running everest gives
338 mb/s read
154 mb/s write
210 ns whatever.

changing only two things in wpcredit (setting the 6c offset to 00) gives the rize in benchmark score up to 30%:

412 mb/s read
172 mb/s write
184 ns ?

with a 128mb module at 2-3-3-6! i can actually edit it also - some other changes made by jim too, and finally ive got the system running at

418, 189 and 170ns @ 2225

... but it doesnt solve the sound prob :(
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KachiWachi
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Post by KachiWachi »

kalabok sez -

i am trying to solve the well known sound problem on via mvp3 boards using a geforce graphic card and sound from a fortemadia fm801a.
I'm not familiar with this problem. Got any links that explain the situation?
Moderator - Wim's BIOS

PC #1 - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), 128 MB EDO. BIOS patched by Jan Steunebrink.
PC #2 - Amptron PM-7900 (M520), i200 non-MMX, 128 MB EDO
PC #3 - HP8766C, PIII-667, 768 MB SDRAM
PC #4 - ASUS P3V4X, PIII-733, 256 MB SDRAM
PC #5 - Gateway 700X, P4-2.0 GHz, 768 MB PC800 RDRAM
PC #6 - COMPAQ Evo N1020v laptop, P4-2.4 GHz, 1 GB PC2700 DDR
PC #7 - Dell Dimension 4600i, P4-2.8 GHz, 512 MB PC2700 DDR
PC #8 - Acer EeePC netbook, Atom N270 @ 1.60 GHz, 1 GB RAM
PC #9 - ??? ;)
DonPedro
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Post by DonPedro »

@kachiwachi: http://www.deinmeister.de/mvp3_zlt_e.htm

@kalabok: VERY impressive numbers!!

could you run SuperPI (1MB) bench and post the result?

how did you setup your board - jumperwise? the manual says nothing about the 133mhz speed ... does your tweaking also raise the sdram speed to 133mhz?

also could you please list ALL the tweaks (including the tweaks you learned from Jim) you carried out via wpcredit (it is just more convenient to have it at one place ...)

also let me ask you: what do you need the soundcard for? if you don't need it for gaming purposes and just need sound for system sounds and alike you probably could solve your problem by using an ISA based soundcard (sb16).
Jim
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Post by Jim »

If he gets the same sound problem I sometimes get, It is a loud staticy crackling sound that tends to come in most often when base notes are played. I have occasionally managed to make it really go away by certain updates which I don't remember. The rest of the time I control it by adjusting the settings of the Creative Mixer and also the EAX settings. These settings can seem to make the problem go away; but not really because if you adjust them back the problem resurfaces.

Also @ kalabok : Those are quite impressive numbers you are getting from Everest. The only other person I have heard of getting over 400 Memory Read is KGB. I too would like to know exactly how you did it. Thanks.

Afterthought : Re your remark about "Just playing w/ numbers" If you really want to find out if your tweaks are helping things like file compression speed, image conversion, and that sort of thing, there is a test suite called "OSMark" which Peter posted a link to that can measure that sort of thing. Be forewarned however, that tweaked systems which seem to be stable for all intents and purposes, sometimes crap out completely w/ the OS install trashed by errors when "OSMark" is run on them. It tests the system to the limits and sometimes beyond.

EDIT : I can't use WPCredit on SP5 because it has a defective processor, (which works ok as long as I don't push it too hard); but I did go in and check the HD pop setting; and that one is set to zero by default on my DFI. The other setting re the "Dram start cycle" =w/ cache @ 66MHz is one I use, and yes it does give substantial benefits.
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
ATI 9000 aiw Radeon AGP
SB Audigy 1 MP3 Sound
CMD 649 IDE Controller
NEC USB 2 Card
User avatar
kalabok
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Joined: Mon Nov 06, 2006 11:40 am
Location: germany

Post by kalabok »

the mobo settings:

mvp3c2 rev. 1.2
amd k6-2+ 550acz
128mb pc133 spectec 2-3-3-6

just the normal ones! you jumper the multi as if you have a 133mhz clockspeed. the mvp3c2 only allows setting 112mhz by hardware, but there is an option in bios to set the cpu host clock. not mentioned in the manual, a lot is missing there.
so you just set the "cpu host clock" from default - or whatever - to 133/44. and disable the extarnal cache. reboot. and - tata! - a k6-2+ is now running at 133*4,5=600 mhz instead of 100*4,5. after that you can even save a jumper, you dont need the clocksetting one.
... sorry, but it seems to me too easy that noone before tried that out ... still a mystery.

tweakings by software:

actually im confused. maybe you can help me - tried out the "enviromental save" option on wpcredit. now the system seems to boot the same wpcrsettings, as they were during the that save. a registry file was created - i dont want to delete something in the reg, do you guys now how to undo it?
thats why i cant post you the everest benchmarks of the naked untweaked system. but lets go further. the first thing i did is to install sandra lite 2007. running it, comparing benchmarks in everest gave the evidence, that sandra changes the offsets! yes, weird, but comparing the numbers you will find it too (i hope). my loved 6c to 00 for example. ill try to find more, please tell me how to undo the enviromental save and how to extract the offsets to an txt-file.
i mentioned this effect in a post of jim - he reported an encrease of memory read and write only rerunning everest after sandra. sorry, i havent red all the postings of this topic, maybe there are more peaple wondering about this effect.
now i have - only running sandra - 408 read 172 write and 180,6ns. as i have got internet only through a mobile, the superpi and osmark test results will come only tomorrow.

so tweaks ... there still are none. i think, i made the regsave only after running sandra, all other offets i played with, seem to be the default ones.
what i did change afterwards are:

enable read around write & cache write pipeline cycle (offset 53 to f0)
setting the refresh counter to highest number possible (offset 61 to ff)
as well as the ram timings to 2225

normaly the system should stop immediatly, but it runs happily and content. in germany we say - the most foolish farmers harvest the biggest potatoes. i mean, just trying arround with a wrong pcrfile and asking others to undo the personal crap gives best results :) try it!

now: 418 read, 188 write, 170,3ns delay. sandra ram benchmark - 275mb/s immx and 277 mb/s float fpu.
Jim
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Post by Jim »

I have never had that happen. Usually a reboot resets all your WPCredit settings to their defaults. Normally to get your settings to start at boot you have to use WPCrSet. I suppose you could try using an unmodified copy of the PCR File and do a save w/ that. Could be that using the wrong PCR file has modified some reserved settings, I don't know. Try to see if you can find the right one in the ones you downloaded.
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
ATI 9000 aiw Radeon AGP
SB Audigy 1 MP3 Sound
CMD 649 IDE Controller
NEC USB 2 Card
DonPedro
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Joined: Wed Jul 27, 2005 2:11 pm

Post by DonPedro »

@kalabok

so let me repeat to see if I got you right:
I set the cpu/fsb-jumpers to 4.5x and 100mhz (JP3).
then I turn on the pc, go directly into the bios and change the cpu-fsb clock to 133mhz (you wrote 133/44; the "44" part is a misprint, isn't it? "should" be 33 ...)

regarding the "environmental save": I monitored wpcredit (with the help of the tools regmonitor and filemonitor from sysinternals.com)what it does in the registry and on the disk when an "environmental save" is done. wpcredit does NOT write to the registry! it just saves its own graphical "layout" into a "*.reg"-file you choose. nothing more. as Jim pointed out you need wpcrset to make the changes quasi "permanent" - they will be loaded automatically when you boot your system. if you use wpcredit alone all changes will be lost after shutdown / restart.

regarding the pci-bus oc'ed to 41mhz: before running osmark please spent the time to make an image of your system partition. this is always a good idea but running a system bench from a disk @ 120% bus speed IS a risk!

what version of everest are you using?
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KachiWachi
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Post by KachiWachi »

Not a misprint (133/44)...see the OP's other thread on this topic.

Thanks.
Moderator - Wim's BIOS

PC #1 - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), 128 MB EDO. BIOS patched by Jan Steunebrink.
PC #2 - Amptron PM-7900 (M520), i200 non-MMX, 128 MB EDO
PC #3 - HP8766C, PIII-667, 768 MB SDRAM
PC #4 - ASUS P3V4X, PIII-733, 256 MB SDRAM
PC #5 - Gateway 700X, P4-2.0 GHz, 768 MB PC800 RDRAM
PC #6 - COMPAQ Evo N1020v laptop, P4-2.4 GHz, 1 GB PC2700 DDR
PC #7 - Dell Dimension 4600i, P4-2.8 GHz, 512 MB PC2700 DDR
PC #8 - Acer EeePC netbook, Atom N270 @ 1.60 GHz, 1 GB RAM
PC #9 - ??? ;)
Jim
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Joined: Wed Jan 21, 2004 7:10 pm
Location: Toronto

Post by Jim »

@ kalabok : Having just read KachiWachi's posts about your PCI Bus speed, I do not recommend that you run OSMark on that machine. You could wind up w/ damaged hardware.
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
ATI 9000 aiw Radeon AGP
SB Audigy 1 MP3 Sound
CMD 649 IDE Controller
NEC USB 2 Card
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