A7V133 supported CPUs?

[jemz0r]

Hello,

My Duron850 died and was wondering if the A7V133 supports the new Athlon XP CPUs? If so, what are the limitations, eg: does it only go up to a certain speed?

Looking at a 1.7XP maybe.

 

[jemz0r]

forgot to mention, Rev 1.05.

Thanks

 

[The_Ryz_Factor]

Yeah as long as it's revision 1.05 it supports them. I've got an XP 1900+ (1.6 Ghz) in my A7V133 right now.

 

[Lance Thornton]

a7v-133 speeds

I actually posted something similar to this a while back. I have an A7V-133 revision 1.04 and my xp1700+ works fine if I press reset after it cold boots. Good Luck with yours and I doubt that you'll have any trouble.

 

[The_Ryz_Factor]

I also have to press the reset button on a cold boot. I wonder why that is, it kind of gets annoying sometimes.

 

[JimmyG]

Having to hit reset on a cold boot can sometimes be due to power supply fluctuations. Try borrowing a psu from a friend to see if it goes away with the different power supply. Another possible cause is flaky RAM. Try switching out ram from another computer.

 

[disenter]

hey guys, been awhile since i posted.. anyway, down to buisness.
I have heard at some stage that the A7V Via Apollo KT133 200mhz FSB (assuming this is one an the same as what your talking about) that it was possible to do something to the board to make it 266mhz FSB. true?? .. if so how ?..
also, this was the first model A7V KT133, its running bios revision 1.08a currently, but the original book suggests that its maximum speed cpu it can take is 1ghz T-bird/Duron. Yet you'se talk about 1.7's an such, anything special your doing to it? or just the updated bios ?

appreciate any info you can give me.
Thanks in advance.

 

[Angry]

There is no way to get 266fsb on the orginal KT133, only the KT133a supports it which is what the A7v-133 has...
The KT133 just couldnt run at that high of a speed...You were lucky if you got it to do 120fsb...(240 DDR)
All you can do it just upgrade the motherborad or overclock via the multi only..but you get metter results with fsb overclocking...
the KT133a is the only reason the A7V-133 can run the XP chip...it has the capablitity to run 133fsb (266DDR)....the KT133 can only run 100fsb (200DDR)...

Your basicly out of luck...

 

[disenter]

interesting, believe i could get 133mhz out of the fsb, just not with the ram i have, see the 133 clock is only very slightly higher on the pci's and agp, where as everything in between that an its lowest/default setting is actually higher, so to the pci's an agp theoretically it should be fine.. the problem was the sdram i am using wont take it.. its only pc-133 hyundai crap.. i need 166mhz stuff to do it .....

 

[FRANK]

interesting, believe i could get 133mhz out of the fsb, just not with the ram i have, see the 133 clock is only very slightly higher on the pci's and agp, where as everything in between that an its lowest/default setting is actually higher, so to the pci's an agp theoretically it should be fine.. the problem was the sdram i am using wont take it.. its only pc-133 hyundai crap.. i need 166mhz stuff to do it .....

I have both an A7V and an A7V133 and can tell you from my experience that you'd be very fortunate to be able to get the FSB much above 110MHz on the A7V, although many have reported getting to 150+ with the A7V133. The A7V was one of the first generation socket A motherboards and suffers from this limitation, as did the original socket A boards from all other manufacturers utilizing the VIA KT133 chipset. Remember that AMD had not released the "C" (266MHZ FSB) CPUs to that point. This problem was addressed with AMD's release of the 266 CPUs, VIA reworked the chipset to officially support the higher FSB, this revised chipset is the KT133A. I believe there were some later A7V's that had the KT133A chipset I think these were the A7V-E (don't quote me on this though).

As far as your memory, unless it is defective, there should be no problem running it at 133MHz (memory bus), this is the factory rated speed of your RAM, PC133. Even if you only had PC100 RAM, you can still set the memory bus speed asynchronous to the FSB. See page 60, section 4.4, “DRAM frequency” in the motherboard manual for an explanation of this option.

Given the problems with the FSB on the A7V, it is still a good performer for the time it was introduced. I've been able to get a DURON 600 to 1100MHz with only a 110FSB on mine (see signature below). Some others have reported that using active cooling on the northbridge chip will yield a few more MHz from the FSB, but not much.

I would suggest that you save your money and upgrade to a newer motherboard including DDR RAM.

Good Luck!

 

[disenter]

cool, and yes i know the difference between the 200mhz an 266mhz fsb's.. i know the ram will run at 133mhz, thats what its running at right now.. default.. but it sux.. as i said, i used to have a chip that had no problems with running at 143mhz, an it made a large difference to boot times, shutdowns and loading/unloading programs in general. the thing is, if i push the cpu clock up, say even 101mhz instead of its standard 100mhz, then it also pushes the ram up 1, so 133, becomes 134.. an so on.. it gets flakey after 135mhz, this ram is ****.. its also as i said before, that every setting (by jumper) between the default setting and the highest setting of both cpu and fsb, means that both the pci's and agp runs a fair bit harder as well, and some sound/video cards etc wont take that.. but at the highest setting, its only justtttttt higher than default on pci an agp slots.. so.. given the fact that +1 on cpu clock = +1 on ram, running the clock at 133mhz, and running the ram at 133mhz, produces 166mhz on the ram.. if it dont take it, then the only thing limiting it, is the chip itself..

 

[FRANK]

Although your theory is sound, the fact is that the A7V with the original KT133 chipset WILL NOT run at any bus speed above the 107 / 110 MHz range, period. If your experiments prove fruitless, don't be too quick to place the blame entirey on the RAM. You can set the RAM to run at a 100MHz memory bus (3/4 of the FSB speed) and the board will still not run 133MHz. This is a well documented problem with all of the first generation Socket A motherboards utilizing the KT133 chipset, and for that matter, the earlier KM133 chipset found on the Slot A motherboards.

Sorry, it's not going to happen on that motherboard. If you want to take advantage of increased FSB then you're going to have to get in line for a motherboard upgrade.

Good Luck!

 

[disenter]

well i already had it booting at 8 x 113mhz and running, it was just kinda jerky minimising and maximising windows, noticeably.
but that was also by dropping the ram to 100mhz first.. i had no choice, go over 135mhz on the ram and it wont even boot.. instant alarm bells and a dead machine ... until i rip the ram out an replace with a single 32meg chip that will handle that just so i can set the bios back down in speed and turn it off to put the ram back in.. as i said, major pain in the arse.. thing is, its just experimentation, i dont really care if this machine gets faster.. ill build a faster system eventually, was just interesting really, this machine is set to become a server anyway, after i build a newer athlonXP
thanks for the input though, much appreciated.

 

[Pat]

I thought that Bios version 1007 or higher converted the bios to use the XP chip cpu.

Pat

 

[FireMogle]

I thought with some hardcore hardware mods you can get the kt133 boards to run 133. I read that somewhere anyway.

 

[Angry]

. This is a well documented problem with all of the first generation Socket A motherboards utilizing the KT133 chipset, and for that matter, the earlier KM133 chipset found on the Slot A motherboards.

You mean KX133...The KX133 was revised for the socket A platform and to fully be compat with Thunderbird cores where as the KX133 was a hit or miss if a Thunderbird cored Slot A worked...


And FireMogle...
I would like to see these hardcore mods as to try them out on a KX133 chip for my Slot A board...

 

[FRANK]

You mean KX133...The KX133 was revised for the socket A platform and to fully be compat with Thunderbird cores where as the KX133 was a hit or miss if a Thunderbird cored Slot A worked...


And FireMogle...
I would like to see these hardcore mods as to try them out on a KX133 chip for my Slot A board...

I stand corrected I should have said KX not KM.

Once again disenter, you may be able to eeke a little bit more FSB from the KT133 by using some sort of active cooling on the northbridge. But again, don't expect miracles.

Good Luck!

 

[ld2950]

According to everything I've seen plus my own expriances if the a7v133 is rev1.05. (has to have dot at end) xp will work fine.. if not you have 50/50 shot at it working..I have 2 a7v133 boards 1 with an xp1700 rev1.05. other with duron morgan 1.1 rev1.05 no dot at end. I tried my xp chip in both boards and just like everyone said would only work in 1.05.