Re the USB issue,

The optical mouse I was using at the time was a PS/2 version. I'm still clueless has to how changing mice affected the cursor lockup problems. I can only assume the optical mouse has gone bad because the other mouse I have plugged in works just fine.

I'm not meaning to spam here. Sorry for posting in such close intervals and I also apologize for accidentally posting the same thing twice...

after changing the ram from 1-512 mitsubishi to 2-256 unknown brand , 2466 board finally booted and win xp running ok. very frustrating experience, pretty bad that ram can stop boot. power supply powmax 400W did not help as first try from 300W older unit, but probably a good idea to have better power supply.

upgrading video card from pci to agp required changing setting in cmos.

This board is very unstable. We have 24 boards running for about half
a year and we got like 3 boards died.... it was posting/booting OK
when we installed it half a year ago.... running continuously... had some
instances when some systems just hang... have to reboot it and
everything's back to normal... soon... one totally died.... then another....
then another.... what's up with these boards???? We'll have to wait like
a month before the boards get replaced!!!!

Anybody have any idea? Need help!!! Before another one goes down again...

JV3

Hello,

Does, anybody know - is it possible to start this motherboard usind dual XP 2000+.
I did't start it.
If someone cen describe me the differense between XP 1600+ and 2000+ - please help me!

10x!

Probably a bit late re the september posting on S2460 reliability. I posted my experience on an earlier thread. I ended up swapping the clients board for an MPX S2466 board the next generation. Since this has run flawlessly for six months and recently upgraded from Athlon 1600+ to 2000+ with no apparent problems I have come to the conclusion that the earlier S2460 problems were due to the early build status of the board as a first generation.

Notwithstanding the early nature of the board I experienced several problems. The running temps for the processors alway seemed high on the BIOS monitor. Improving air flow reduced some of the early instability to almost reliable. Tyan did supply a BIOS patch but I was unable to get it to load. From the settings instructions this seemed to be aimed at resolving memory timing issues. My experience was that the memory slots were skittish some would work with some combinations and not other also bourne out by the board manual information even though all memory was registered. However replacing the memory with sticks that were obviously much more heavily bufferred reduced the instability to about once every day or so.

The problems with the S2460 board seem to revolve around heat and memory timing both issues dealt with in the S2466 board.
Brendan falvey

PS

One little thing I forgot was the S2466 board seperated the fan supply from the main board power supply ie P4 style. This is consistent with my observation on a BIOS monitor that the VRM for one of the processors had larger excusions (ripple) on the power supply and ran several degrees hotter than the other. While the ripple was small it could have the potential to cause timing problems if the margins were small as I suspect they would be when you are looking at margins in the 1 nano second range. Could try seperating the fan supplies to remove any problems caused by variable speed fans attached to the motherboard.

Brendan falvey

Hi.

I just solve my problem - realy the mobo is ok, but CPU - 2000+ XP - you must first unlock L5 bridge for MP functions. Just look at: http://www.hardwarezone.com/articles/articles.hwz?cid=2&ai...amp;page=1

Regards
pl

I have been having lots of problems with the s2460 with hard reboots of my computer. The cause appears to be ACPI, event id 4. It appears to be a well known problem as read in the links below.

One solution is to make the computer, under Device Manager, to be 'Standard PC'. But will this work with a dual processor system.

Also has anyone been brave enough to try the beta bios, 2460416, for the S2460? It claims to fix.
* Fixes Win XP ACPI Event Viewer issue
* Update MP Table
* Fix IRQ Routing

I do not think that I am brave enough to be the first. May be Tyan will get around to releasing this soon. After all their last update was March this year. How long does it take to fix this specific problem?

_______________________________________________
http://forums.viaarena.com/messageview.cfm?catid=13&thread...TARTPAGE=1

It's easy and safe to disable ACPI from the device manager in XP. Just right click on it in the device manager, choose update driver, click I will choose the driver to install, and click on Standard PC. Reboot the PC and it will redetect all your devices.

_______________________________________________
http://www.eventid.net/display.asp?eventid=4&source=

ACPI BIOS is attempting to read from an illegal IO port address (0x71), which lies in the 0x70 - 0x71 protected address range. This could lead to system instability. Please contact your system vendor for technical assistance.


_______________________________________________
http://www.microsoft.com/hwdev/tech/onnow/BIOSAML.asp

To help ensure system stability on systems with legacy BIOS ASL implementations, Windows XP attempts to synchronize accesses to resources whenever possible. For example:
When a read or write access is detected to the CMOS/RTC index and data pair registers at I/O addresses 0x70 and 0x71, the operating system does the following:
§ Disables interrupts
§ Preserves the contents of the index (address) register
§ Allows the ASL code access to proceed
§ Restores the value of the index register
This process helps prevent a race condition in which the operating system writes the desired address to the index register and a BIOS method changes the address in the index register before the operating system can access the intended data register, causing the operating system to use the wrong index value.

Note: This approach cannot guarantee that the CMOS address register (0x70) will not be corrupted on multi-processor systems.

hi all,

i have built a few of these 2460's and i am currently working from one now. what i have is a problem flashing the beta 2460416.rom bios with the plash16.exe utility. i am booting with a dos boot disk and select f5 as soon as possible and i still get a "himem" error telling me to turn of my memory manager! even if i boot with no hdd's this happens? is it a bios/cmos function? or what? Please Help!

system spec:
Dual MP 2200+
1024mb unbuffer ecc memory pc2700 333mhz (two 512 sticks)
465w ps "amd recommended"
sb live audigy2
ati radeon 8500dv all-in-wonder

[ the pc2700 memory works fine with three prior 2460 systems i've built! also i have used dual xp 2000+ cpus on the last one i built!]


The reason for the attempt of flashing a beta bios was a last ditch effort to get the video card to work. This is the first ati 8500 card i have tried with this board. i have used my spare "ati expert 2000 pro" several times and it works fine with this board? i have tried everything i can possible think of! tyan says the 8500dv is supported, and ati agrees? any helpfull hints, or similar problems with ati 8500 series cards?!

i have tried to install the latest recommended ati catalyst drivers, i got to load all of the components but when it does finnally need to re-boot it hangs, i think it may be during the self test upon restart?

I hope i can get this to work, i would like to try the 9700 pro with my 2460 ugm which uses the same drivers.


?because it has a fire wire card built in?
?because it is conflicting with my sound card which was installed first?

Best Regards,
Steve

I'm using a Radeon 8500 w/128 MB on my system.

dual Athlon MP 1800+
768 MB (3x256) Crucial Micron PC2100 DDR cas=2.5
SB Live 5.1
D-Link NIC
Windows 2000 Professional w/DirectX 8.1

The 8500 has an issue with the BIOS setup utility: the font is corrupted after you leave setup, press Ctrl+Alt+Delete to fix it.

Make sure you installed the AMD chipset AGP port drivers before trying to install the Catalyst driver pack, and update DirectX. I think the setup program hung the first time I installed, but the drivers came up anyway. I think I might've had to visit Device Manager and manually change the driver.

Thanks Ben!

The card seems to be fine! i just need to tweak it a bit and test its performance!

Appreciate The Support!

Best Regards,
Steve

I installed two 2000XP chips with the L5 bridge connected using the conductive paint (done correctly). They will work individually but when I put both chips on the motherboard bios does a chip ID check does anyone know how to disable the chip ID check. This is with all the bios flashed including the latest one. I have a feeling if it does not do the chip ID check it would work.

That's funny.

First, my S2460 never checked, and identified my XP CPUs as MP 1700+ (which AMD hasn't made, ever), before I upgraded to true MP CPUs. Secondly, if the contacts are bridged on the package, the CPU will be seen as an MP by the BIOS.

How are the CPUs identified during POST when you boot with a single XP?

Hey can anyone help me out? I heard here and there that a few people were dualing up new durons on a tiger 2460 board so I gave it a try, needless to say there have been problems but I have gotten through to a stable setup, windows 200 functioning properly and all, but it is only running one processor. At the startup since I first started putting everything together, it took about a minute to begin to boot which seems crazy, thenit registers 2 processors detected, then lists the hardware I currently had installed, then pauses AGAIN for what seem like forever, then posts a nice little cryptic

failed
00ERROR

then asks if I want to go to setup or just continue. This has got to have something to do with the other processor. I checked in the setup and both processors were putting out heat. What's the deal? Anyone? thanks
tony

You might want to try flashing your bios with the latest image from Tyan.

http://www.tyan.com/support/html/b_tg_mp.html

I could just be grabbing at straws here, but I had a CPU ID problem with my Tiger 230 and my second P3 1Ghz CPU that was resolved when I flashed the CMOS again. It may be worth your time if your current BIOS version predates the latest release (currently 1.05). Good luck.

how do I check what bios version I have currently running?
And damn, they sure scare you about flashing your bios - is it really so risky?

Ok so I flashed my bios, it didn't kill my comp or anything, and it boots up in a normal amount of time, but now instead of the old
failed
00error

I get the message that I am running non-mp processors which can lead to system instability. And my computer will continue to run in non-standard mode what's the deal? The processors I bought were palomino core duron 1.3 s which is what I have seen been used on the 2460. Any more ideas why it won't deal? thanks
tony

Hey guys a friend just gave me this motherboard, i had some questions about it, it says it takes up to 3 gb registered ram, does it HAVE TO be registered? or could i get some ram from like a computer store and just use that?

Reggie
The 2640 was a first generation board and its memory timing margins extremely tight. It requires at least one stick of Registered RAM. Off hand I cannot recall if it all had to be. There was some discussion on this point. My experience suggests that it is unlikely for it to operate with mixed RAM. Very touchy and ensure you have the latest BIOS file since later flashes addressed memory timing problems

I replace the board with a 2466 and these are rock solid

If you have stability problems I suggest you supply the fans directly rather than from the board. this was one of the major changes from the earlier 2460 board also ensure VRM2 is kept cool since this seems to run hotter check with the BIOS monitor or a utility. May not be fully calibrated but they run consistently hotter and the outputs show gereater variation with possible implications for timing over time.

Brendan Falvey

Hey thanks alot man