Why FastWrite disabled by cat 5.1 on 9600XT?

Ripsaw · Jan 18, 2005, 11:45 PM

Why does 5.1 disable the FastWrite feature on 9600XT cards?

pir8nyc · Jan 19, 2005, 12:06 AM

the official 4.12 did the same afaik, now does anyone know which registry or inf value to modify to get back the fast write?

franguinho · Jan 19, 2005, 12:17 AM

afaik fastwrite doesnt even really make much of a difference anyway...

The_Neon_Cowboy · Jan 19, 2005, 03:14 AM

Yea fast writes DEGRADE stability..
Reduce the ability to over clock...
And for many others benchmarks LOWER...
And lower FPS in games....

Fast writes are recommended to be OFF in the 1st place
They were only recommended "on" in a specific case/issue 9600's
But that issue was long fixed... thus they should default off

Fast writes should be enabled in you bios and disabled in windows
via smart gart...I even did an article on this while bac and dozens
of forum member confirmed my results.

jafaro · Jan 19, 2005, 11:50 PM

acctualy they INCREASE stability and scores ON SOME Athlon systems for some reason I have found, otherwise Neon Cowboy here is right

virgo · Jan 20, 2005, 06:18 PM

I would definately leave fast writes off on the MB as well as any of the drivers,it makes my system unstable otherwise

Alex T. · Jan 20, 2005, 09:53 PM

I have never had serious stability issues with Fastwrites on, some motherboard like my Intel D875PBZ board don't even have an option to turn it off. But it works fine.

Judas · Jan 21, 2005, 02:42 AM

here's a new one, i just got my 9600XT AIW, fresh install of 5.1's and fast writes are on by default... check your bios... possibly something switched there

also, the drivers do a automatic test.... it on some combination of machines, disables itself if it see any form of instability

Ripsaw · Jan 21, 2005, 03:21 AM

Fastwrites are on in BIOS. I tried what Neon said and noticed no difference. Since I've had no stability problems with them on for the past 6 months, I went ahead and turned them back on. Oh, I should mention i'm back to using 4.12 at the moment. 5.1 still had them disabled for some reason.

pir8nyc · Jan 21, 2005, 03:45 AM

Going back to Omega's 4.12 for the fast write option too, my system just isn't as stable without fast write ON. Omega usually gives the option to turn on fast write manually with the warning that it is for AMD 64 and/or 9600 owners, this should be done in the official CATs as well instead of a buggy auto-detection.

jasonbourne · Jan 22, 2005, 10:20 PM

i really don't know much about this subject,and i don't know much about how to configurate my bios either!can someone help me please!

Spyre · Jan 23, 2005, 10:16 AM

Theres zero point to having fast writes set to on in the bios if you are going to then turn them off in windows, since off in the BIOS would also turn it off in windows

@ jasonbourne

If you dont know what you are doing in the BIOS then leave it alone as you can screw up your system

As for explaining your BIOS that all depends what sort of motherboard you have and what type of BIOS it uses

You should have gotten a manual with your PC which explains most of the BIOS in Engrish to some extent

Also use google as there are various guides as to what all the settings in the bios mean

For example

http://www.rojakpot.com/default.aspx?location=1

jasonbourne · Jan 23, 2005, 10:42 AM

thanks ! i read my motherboard's manual and it doesn't say nothing about fast writes.but the catalyst 5.1 set the fast writes on by default so i'll just leave it like that which is probably the best for my system.

The_Neon_Cowboy · Jan 23, 2005, 03:09 PM

Quote:

Originally Posted by virgo

I would definately leave fast writes off on the MB as well as any of the drivers,it makes my system unstable otherwise

Quote:

Originally Posted by jafaro

acctualy they INCREASE stability and scores ON SOME Athlon systems for some reason I have found, otherwise Neon Cowboy here is right

Well the tests I and others ran, sporadic spikes down count when you
average a number of runs having FW on is less stable for everyone hence the
ability to o/c higher with it off. Also with it off higher average FPS.. and more
constant FPS is the result...

a lot of people make the mistake of Turing it off VIA bios which you shouldn’t
do unless they have a specific problem. then you'll see a difference only
because it disables things like side band addressing if you disable FW via the
bios.... which gives a performance hit... it has to be enabled in bios and
disabled in smart gart / windows.

Quote:

Originally Posted by Ripsaw

Fastwrites are on in BIOS. I tried what Neon said and noticed no difference. Since I've had no stability problems with them on for the past 6 months, I went ahead and turned them back on. Oh, I should mention i'm back to using 4.12 at the moment. 5.1 still had them disabled for some reason.

well if you wer o/cing many people get a little higher o/c out of their card if
they turn it off. Some system are even totally unstable with fast writes
on....It's a nvidia agp standard. I don't think anyone really benefits from it's
just another obsolete AGP setting...

fast writes used to make a about 50-100 3dmark2001 difference back in the
day.. when a 650mhz duron with sdram and a original radeon 64 mb vivo and
it's two pixel pipes and dx7 support... (when such a system was considered a high end gameing machine)

but since then it's just plagued user with issues... Omega turned them off
ages ago when the bulks of users e-mail to him having trouble, the issues
being the result of having FW on...

jasonbourne · Jan 23, 2005, 05:19 PM

i have no interest in overcloking my video card, so should i leave fast writes on on my system neon cowboy?

Fahim · Jan 23, 2005, 07:03 PM

Fast write is always on in my PC..........and i didn't notice any instability ever........

Judas · Jan 23, 2005, 07:17 PM

Quote:

Originally Posted by jasonbourne

i have no interest in overcloking my video card, so should i leave fast writes on on my system neon cowboy?

if you are not having any problem... leave it be. It best not to "fix" something that isn't broken

I have no plans to disable FW on my 9600XT AIW as it running stable and fast. IF i end up with some weird freezes, crashes or other problems that could be directly related to my 9600xt, i'll think about disabling it.

The_Neon_Cowboy · Jan 23, 2005, 11:52 PM

Quote:

Originally Posted by jasonbourne

i have no interest in overcloking my video card, so should i leave fast writes on on my system neon cowboy?

as judas said when in doubt leave it alone...
leave it at the ati default if you not haveing a problem...

Jan 18, 2005, 11:45 PM	#1
Ripsaw DriverHeaven Junior Member Join Date: Dec 2004 Posts: 43 Rep Power: 0	Why FastWrite disabled by cat 5.1 on 9600XT? Why does 5.1 disable the FastWrite feature on 9600XT cards?

Jan 19, 2005, 12:17 AM	#3
franguinho Brazilian Fool Join Date: May 2002 Location: São Paulo Posts: 3,380 Rep Power: 0	afaik fastwrite doesnt even really make much of a difference anyway... __________________ The Aliens mostly come out at night... mostly...

Jan 19, 2005, 03:14 AM	#4
The_Neon_Cowboy HardwareHeaven Extreme Member Join Date: Dec 2002 Location: U.S.A. Posts: 16,009 Rep Power: 92 System Specs	Yea fast writes DEGRADE stability.. Reduce the ability to over clock... And for many others benchmarks LOWER... And lower FPS in games.... Fast writes are recommended to be OFF in the 1st place They were only recommended "on" in a specific case/issue 9600's But that issue was long fixed... thus they should default off Fast writes should be enabled in you bios and disabled in windows via smart gart...I even did an article on this while bac and dozens of forum member confirmed my results. __________________ Last edited by The_Neon_Cowboy; Jan 23, 2005 at 03:19 PM.

Jan 19, 2005, 11:50 PM	#5
jafaro DriverHeaven Junior Member Join Date: Dec 2004 Posts: 42 Rep Power: 0	acctualy they INCREASE stability and scores ON SOME Athlon systems for some reason I have found, otherwise Neon Cowboy here is right __________________ Emachine M6810 Notebook Athlon 3200+ 1.25 GB Ram Radeon Mobilty 9600 XT overclocked ofcorse 1,014 3dmark05 3,018 3dmark03 7,562 OpenGL XSMarks 11,608 3dmark01 25,516 Aquamark 3 Last edited by jafaro; Jan 20, 2005 at 12:03 AM.

Jan 22, 2005, 10:20 PM	#11
jasonbourne DriverHeaven Senior Member Join Date: Oct 2004 Location: great yarmouth uk Posts: 1,082 Rep Power: 0	i really don't know much about this subject,and i don't know much about how to configurate my bios either!can someone help me please! __________________ http://i7.photobucket.com/albums/y28...asonBourne.jpg

Jan 19, 2005, 12:06 AM	#2
pir8nyc DriverHeaven Junior Member Join Date: Dec 2004 Posts: 45 Rep Power: 0	the official 4.12 did the same afaik, now does anyone know which registry or inf value to modify to get back the fast write?

Jan 20, 2005, 06:18 PM	#6
virgo DriverHeaven Junior Member Join Date: Jun 2004 Posts: 37 Rep Power: 0	I would definately leave fast writes off on the MB as well as any of the drivers,it makes my system unstable otherwise

Jan 20, 2005, 09:53 PM	#7
Alex T. DriverHeaven Junior Member Join Date: Nov 2003 Posts: 39 Rep Power: 0	I have never had serious stability issues with Fastwrites on, some motherboard like my Intel D875PBZ board don't even have an option to turn it off. But it works fine.

Jan 21, 2005, 03:21 AM	Thread Starter #9
Ripsaw DriverHeaven Junior Member Join Date: Dec 2004 Posts: 43 Rep Power: 0	Fastwrites are on in BIOS. I tried what Neon said and noticed no difference. Since I've had no stability problems with them on for the past 6 months, I went ahead and turned them back on. Oh, I should mention i'm back to using 4.12 at the moment. 5.1 still had them disabled for some reason.

Jan 21, 2005, 03:45 AM	#10
pir8nyc DriverHeaven Junior Member Join Date: Dec 2004 Posts: 45 Rep Power: 0	Going back to Omega's 4.12 for the fast write option too, my system just isn't as stable without fast write ON. Omega usually gives the option to turn on fast write manually with the warning that it is for AMD 64 and/or 9600 owners, this should be done in the official CATs as well instead of a buggy auto-detection.

Jan 23, 2005, 10:16 AM	#12
Spyre DriverHeaven Senior Member Join Date: Mar 2003 Location: England Posts: 240 Rep Power: 62	Theres zero point to having fast writes set to on in the bios if you are going to then turn them off in windows, since off in the BIOS would also turn it off in windows @ jasonbourne If you dont know what you are doing in the BIOS then leave it alone as you can screw up your system As for explaining your BIOS that all depends what sort of motherboard you have and what type of BIOS it uses You should have gotten a manual with your PC which explains most of the BIOS in Engrish to some extent Also use google as there are various guides as to what all the settings in the bios mean For example http://www.rojakpot.com/default.aspx?location=1 __________________ ATI Beta Tester game.AMD.Moderator

Jan 23, 2005, 10:42 AM	#13
jasonbourne DriverHeaven Senior Member Join Date: Oct 2004 Location: great yarmouth uk Posts: 1,082 Rep Power: 0	thanks ! i read my motherboard's manual and it doesn't say nothing about fast writes.but the catalyst 5.1 set the fast writes on by default so i'll just leave it like that which is probably the best for my system. __________________ http://i7.photobucket.com/albums/y28...asonBourne.jpg

Jan 23, 2005, 05:19 PM	#15
jasonbourne DriverHeaven Senior Member Join Date: Oct 2004 Location: great yarmouth uk Posts: 1,082 Rep Power: 0	i have no interest in overcloking my video card, so should i leave fast writes on on my system neon cowboy? __________________ http://i7.photobucket.com/albums/y28...asonBourne.jpg

Jan 23, 2005, 07:03 PM	#16
Fahim DriverHeaven Junior Member Join Date: Oct 2002 Location: In Front of my PC Posts: 42 Rep Power: 0	Fast write is always on in my PC..........and i didn't notice any instability ever........ __________________ AMD Athlon64 X2 6000+ ASUS CROSSHAIR AM2 Motherboard 2 x 1GB Corsair XMS PC2-6400 DDR2 800MHz SDRAM 160GB+500GB+750GB+1TB+1TB+750GB+250GB+750GB+750GB+ 1TB+120GB+400GB [COLOR=green]NVIDIA GeForce 8800 GTS 512MB (650,1940)[/COLOR] [COLOR=#008000][color=red]ATI RADEON HD 3870 512MB (800,2340)[/color][/COLOR] [COLOR=#008000][color=red]ASUS AX800 XL 256MB (??)[/color][/COLOR] Coolermaster Real Power 1000W PSU