Question... and a warning

Julios

Member
Nov 19, 1999
65
0
0
i recently upgraded from a celeron 366 to a p3 1ghz (133bus)

my motherboard was an asus p3bf - i asked around to see if this motherboard supported the 1ghz p3, and the general consent was that it does, but not officially. I figured, hey might as well give it a shot, worst case scenario, i have to buy a new motherboard, which i'd have done anyway had it not supported it at all.

So after a bios flash, and a Slot1 - socket370 adapter, i get my computer to post.

fsb stable at 133 mhz, 256 cas2 pc133 ram, and a geforce2 gts. All seems fine. The only concern i had was that the agp was running at a toasty 89mhz (the asus p3bf only has a 1/1 or 2/3 divider for the agp)

Well the card seemed stable, so i figured hey i'll be getting some extra speed out of it at 89 mhz.

So i load up quake3, and q3touney4 (that spot where if u look at the corner of the wall it dips to 80 fps on even fast machines) - didn't budge below 125 fps! i was ecstatic.

So i load up a game of rocket arena3, and i notice that my frame rate was incredibly inconsitent - kept dropping to 80 or 90 fps -

i then ran a time demo - really strange - it would literally GLIDE through certain parts of the demo, and the chunk up (not ram hitch chunk - just fps chunk) - seemed as if there was a massive bottleneck somewhere. Note: these chunks occured at the same spots in the demo - so it's not as if it's random frame dropping. In picmip5 640 resolution, 32 bit color and textures, i got a mere 80 frames per second :( (with the latest detonators)

I then loaded up 3dmark 2001 - on the default settings (1024X768X32bit) i got 591 - this is on a p3 1ghz@133 with 256 cas2 ram and a geforce2 GTS!

I remember hearing somewhere that overclocking your agp can actually cause slowdowns.

So... the question is this: Does anyone know what's going on here?

and the warning... asus p3bf + p31ghz might be a bad choice for u :p
 

Duvie

Elite Member
Feb 5, 2001
16,215
0
71
What is it set to..the agp I mean? 4x, 2x or 1x? my fsb is 224(112x2) which makes agp 74mhz (also 2/3 multiplier) and the 4x makes it 296mhz.

I believe that is right...so yours would be running 4x at 356...try dumping it to 2x or 179mhz and see if it fixes some of the problems....You can difnitely tell this board was not made for the 133 bus chips only the 66mhz bus of the celeron which a person would run the 1/1 multiplier and the 100mhz up to 600mhz p3's and use the 2/3 multiplier...

I don't think there is a way around it without getting a newer mobo. The 2x may be underworking the card and the 4x is going to kill it most likely...

Also your card should be burning hot...most nvidia cards are hot to begin with...
 

Julios

Member
Nov 19, 1999
65
0
0
i don't think this motherboard has agp 4X - i guess that means it's stuck in 2X? or 1X?

But from what i've heard in the past, agp 4X doesn't yield HUGE gains - and my system right now is running slower than p3 450's with tnt2's.

Thanks for the advice tho - i was just checking to see if maybe anyone else had experience and knew if there was a quick fix of sorts.. would save me a couple hundered on a new mobo -

what motherboard would u recommend for the 1ghz p3? I dont mind spending up to 300 (canadian) for a good motherboard - i don't need a raid.


edit: i'm at work now so when i get home i'll scour through the bios and see if there is an agp X setting.
 

compuwiz1

Admin Emeritus Elite Member
Oct 9, 1999
27,111
926
126
Why did you not get a 100MHz version of the 1GHz cpu, is the only comment / question I have?

Everything would then be in spec.

BX will support 10x multiplier, just may not give you the option in the bios, which does not matter anyway....trust me, it will come up as a 1GHz cpu. :)

One reason I can think of is you wanted 133MHz for performance.
 

Julios

Member
Nov 19, 1999
65
0
0
i got the 133 bus coz i saw that the mobo supported upto 150 fsb speeds. Plus a 133 bus speed is faster

the multiplier i was talkin about was the agp thingie (not the divider,or clock multiplier ((which only shows up to 8.5 but i know is automatically set to cpu speed/fsb quotient)) but the agp 1X,2X,4X)

it does come up as a 1000 processor during POST, sometimes it comes up as 500, but after a reboot it goes to 1000

sisoft reports a 1000 mhz processor also.

i'm just trying to figure out what's causing the incredible drop in performance... not sure if it's video/agp related, or processor related. - inclined to think the former...