Yes, to tell you the truth the A7V133 is a piece of crap motherboard.
If you have one of these, it's a definate gamble: You either got one
that will work well with an Athlon XP, or most likely, you didn't.
I've gone through five, yes FIVE A7V133's (4 were mine, 1 was my
friends). If you get the memory errors in memtest86 on test #5 you
WILL get blue screens in Windows XP. I've had two 1.05. revisions,
two 1.05 revisions, and a 1.04 revision. Here's what I found:
One 1.05 revision motherboard worked fine with my Athlon XP, but when
I was putting a finicky heatsink on one day the screwdriver came down
and smashed into the motherboard (put a mark over some circuits),
never to POST again. So then I ordered another A7V133, another 1.05
revision.....
Seemed to work alright with Windows XP, but I still had memtest86
errors. Month after I got it, starting noticing a lot of blue screens
that I hadn't been getting before. Tried putting a Thunderbird 1200
in there, motherboard would lock up shortly after boot, then emit an
endless beep. (no, wasnt a heat problem) Another trashed A7V133 (this
one is in my basement right now, rotting away). But I was still a
faithful Asus follower, and read about the 1.05. (with dot) revision,
which was supposed to cure the Athlon XP problems. So I bought one
for around $45...
This 1.05. (w/ dot) revision had memtest errors on test #5, and yes, I
got intermittent but persistent blue screens when coupled with an
Athlon XP 1800+ and Windows XP. I gave this motherboard to my
girlfriend with a Thunderbird 1200 which works flawlessly (she loves
Warcraft 3).
Now, during this entire time, my friend had, and still has, an A7V133
1.04 revision motherboard running an Athlon XP 1800+, he has no
memtest86 errors and no blue screens. This gives me endured hope.
So, I decide to order my fourth A7V133, a revision 1.05. (dot). This
was about 3 weeks ago. This one also gave me memtest errors on test
#5, and when I tried to install Windows XP, it refused to get past the
"Installing network..." screen in the GUI. This one I decided to RMA
back to the online store I got it from, which I should have done with
all my other A7V133s. I got a refund, but I still had about 712MB of
PC133 doing nothing around my house.
So just three weeks ago, I ordered a refurbished MSI K7T Turbo2 kt133a
chipset motherboard for $29 from Newegg. Installed Windows XP with no
problem, no memtest86 errors, and has worked FLAWLESSLY for me for the
past 3 weeks I've owned it. Performance is on par with the A7V133
too. I love this motherboard, it works as it's supposed to with
Athlon XPs, and its rated to go to 2400+ thoroughbreds, more than the
A7V133 can boast.
So what did I learn from all this? Avoid the A7V133 at all costs.
This motherboard has ruined my respect for Asus, and I doubt I will
ever buy an Asus product again. Out of the five A7V133s, only two
worked well with my Palomino Athlon XP 1800+ (the 1.05 revision and my
buddy's 1.04 revision). MSI is stable, works with processors it's
rated at, and has not given me any headaches. If you have an A7V133,
it's a gamble whether it will work with the Athlon XP processor. Get
an MSI K7T Turbo2. It's cheap and probably the best choice if you
have PC133 RAM. Hope this helps.
-Seth