K9n Platinum S3 BIOS Issue

Hi
I have a K9N Platinum board that is running Windows MCE2005. My issue is that the only bios that I can use to successfully send the pc to sleep is the 1.3.
If i try any other bios ( up to the latest ) whenever I put it to stand-by it immediately turns back on!
I have even disabled all wake up events in the bios with nothing plugged in at all and it still just resumes straight away.
Bios v 1.3 is the only one that it works correctly on.
Any ideas anyone?
Cheers

Quote from: jaiidan on 31-May-08, 08:48:36
Er...and then what do I do with the issue that I have posted about originally!!
They may go away, they may not. But you need that CPU first.

Similar Messages

K9N Platinum and BIOS flashing

New to MSI and this forum
I have a K9N Platinum which I've had some problems with and also need to flash the BIOS.
Problems are: Leadtek TV tuner card video problem watching TV (image and sound freezing) then my laser printer would not print through the parrallel port (works okay through a USB port).
Have had no real solutions from MSI with those two problems
Just recently I've come into owning a MSI 7950 GX2 video card.
Apparently this card won't work with the K9N unless I flash upgrade the BIOS (using A7250NMS, V1.20)
I know my way around computer hardware but BIOS flashing I've never done.
I'm using a NTFS file system,OS is WINXP SP1, processor AMD64 4800+ and HDD Hitachi 250GB SATA2
I have two choices to use these brand new video card:
1: Try to flash the BIOS (with the obvious risks involved)
2: Replace the K9N board with one that is compatible with the 7950 (bearing in mind the other problems with the K9N)
I've read artcles from this site and MSI about flashing using a NTFS file system and I'm not confident.
I know this post is between BIOS and motherboards so it was hard to decide where to place it.
If anyone has any thoughts on the best solution for this it would be appreciated

First of all , make sure you have a "fixedup" motherboard .
( the capacitor fix , see info in the "Post your K9N Ultra/Platinum (non SLI) 'Power Off' Issues Here (NForce 570 MCP)" thread)
https://forum-en.msi.com/index.php?topic=99924.0
Flash bios doesn't need to be done from HD .
You can have both afudos flash util and bios image file on a msdos bootable floppy diskette (verify it from windows with chkdsk A: /R )

K9N Platinum Beta Bios?

Can anyone tell me or show me if there is a new beta bios out for the K9N Platinum?
Right now I'm using beta 1.45 and it works great! Except...I just want something that will fix the stupid cpu temp reading!!!
Lemme know if you find anything.
thanks!

Quote from: natasha on 09-January-12, 03:00:18
What cpus does this bios support? Just curious if it will do a phenom 9750.
Please start your own new topic instead of bringing up one that's been dead for 5 years.
>> Please read and comply with the Forum Rules <<
>> Posting Guide <<
Edit: No the K9N Platinum does not support AM2+ CPUs of any kind with any BIOS.

K9N Platinum Motherboard problem???

Hello. I got a K9N-Platinum motherboard and AM2 X2 4600+ CPU. However, I often got the following problem:
My system sometimes froze, no response at all, couldn't use mouse and keyboard of course.
1) I set up the system to shut down monitor after 60 minutes. However, sometimes the system couldn't
recover, all parts stopped working, including hard disks.
2) When the hard disk is transferring, such phenomenon could happen again.
Finally I found a solution. I had to manually set up the CPU voltage to "1.35V" in BIOS which can resolve my problem completely.
This problem only happened when the cpu voltage was set to "auto".
I thought it was a power management problem, so I installed hotfix KB896256 and KB924441 and all dual-core
cpu optimizers, the problem still existed.
My system is as follows:
K9N Platinum with BIOS 1.6 (601-7250-070********)
AM2 X2 4600+
Geil DDR2 800 1G*2
Inno3D 7900GS
Western Digital Raptor 37G
Liteon 18X DVD burner
500W PSU
I want to know whether this is a defect of my motherboard. Any advices would be appreciated.
Thanks.mate.

Quote from: cxy1808 on 13-May-07, 09:43:20
Can understand the question "what CPU core do you have"?
I have the AM2 dual core 4600+ CPU,Windsor core, 89W watt.
yep that i have asked, well there is nothing to worry about voltage applied manually matched with your default CPU vcore.

K9N Platinum issues

I just bought an MSI K9N platinum mainboard with an AMD Athlon X2 4200+ cpu and Corsair Twin2X2048-5400C paired memory set. At first the bios would instantly crash but I solved that problem by by setting the voltage to 1.9v and manually setting the timing to 4-4-4-12 and forcing the clock to standard 667mhz (5400C is 675mhz). This allowed me to boot but both windows and windows setup would get a BSOD almost strait away (different one nearly every time). I then raised the voltage to 2.1v and this allowed me to log into windows but if I try to do anything stressful such as games or benchmarking it will run for a random amount of time (not usually longer than 5 minutes) and then get a BSOD. Occasionally background applications randomly crash and sometimes I get a BSOD for no reason in windows (not often). I ran memtest86 for 8.5 hours and it showed no errors. Ive updated the BIOS to the latest version. Any body have any idea whats wrong? I can usually use windows fairly fine but no games.
Athlon X2 4200+ AM2 (89w)
MSI K9N Platinum
2Gb Corsair TWIN2X-5400C XMS2 DDR2 675Mhz (2x 1Gb matched pair)
Sapphire 512mb Radeon X1900XT
3x Seagate SATA HDDs
1x Western Digital SATA HDD
Creative Audigy 2 ZS
Compro DVB-T300 Digital/Analogue TV Card
ThermalTake Purepower 480w PSU
Thanks.

Quote from: OuTLaWOwnz on 22-June-06, 12:44:21
So this one will be fine? http://www.silverstonetek.com/products-65zf.htm
hope your right because thats a lot of money to spend if its not the problem. Is there a test or tell tale sign of low power so I can be sure?
USERS:
"Artifacts and freezing on Sapphire X1900XT
Hello, I have a Sapphire X1900XT running at stock speeds and stock cooler. At default fan settings I have no problem running not so power hungry games but when I start Oblivion (1600x1200 2xAAA, 8xAF) the game runs good but about in 15 minutes (varies on the stressfulness of scene) the screen becomes garbled and computer stops responding. VPU recover sometimes manages to restart the card but it crashes again within seconds."
Resolve:
"I bought a Silverstone 650W Zeus and all problems are gone! No more weird fun speed changes under different loads, no more lockups!"
yep im sure its your PSU isnt enought. users confirm that, also official recommendation is "you need atleast 30A on +12V(450-Watt power supply or greater,30 Amps on 12 volt rail recommended) The power supply requirements for that card is 30 amps on a single 12v rail or 22amps on 2x12v rails(better get Sinlge Rail PSU, avoid dual rail)"
"Is there a test or tell tale sign of low power so I can be sure?"
-you can also borrow some recommended good brand powerfull enought PSU to test it before buy it, to be sure to resolve problem.
test you can see by yourself lockup, reboots, abnormal program termination,issues and other are expected when PSU isnt enought when your VGA starting to drain power. you can make test, decrease drasticly GPU Core and Memory Frequency and you must be stabilised.but that isnt solution it is just for testing.

K9N Platinum - Wrong CPU Temperature in BIOS

Hi, I have a K9N Platinum (7250-020) with the latest 1.3 BIOS and an AMD X2 3800+. The CPU Temperature in the BIOS has a negative sign in front of it, and it seems to always report -48*C. I tried the latest nVidia nTune and it was reporting the CPU temperature to be 208*C, which is absolutely impossible...
Does anyone have the same problem? I searched around and it seems I'm not the only one, but I still cannot understand if it affects only some K9N Platinums or all...
Thanks.

Quote from: CBR600RR on 09-November-06, 06:51:56
I assume you are talking about checking voltages as reported by the BIOS in the HW Monitor page, not physically checking them with a multimeter, correct?
I'll take a look at the numbers in the BIOS, but last time I checked they were ok.
As for raising the issue with MSI, eventually I will, even if they ask you soooooo many questions (for good reasons, I know...) that it would take me half an hour to fill that form...
I've checked with both and software is a little out from what a multimeter state's. Only check with a multimeter if your happy to do so. http://forums.extremeoverclocking.com/showthread.php?t=137886 offer good advise if using a multimeter .....
The only issue I see is the AUX connector for 3.3v with ATX2.0 spec (Modular cables etc)
Quote
TheCleaner:
CAUTION: This test involves using probes with the computer ON. Please only do this if you feel competent enough to be dealing with electricity. If you short rails, you could risk damaging the PSU and possibly your components. I cannot be held responsible if something goes wrong, this is merely a guide. If you feel any concern, please post BEFORE doing this, and I will be glad to help.
Contacting MSI would be good to let them know of the problems your having

K9N Platinum Bios flash

Hello, I got a K9N Platinum and I did flash is succesfull to 1.8, but did screw my windows vista drivers :( .
so np, C:/ is only windows for me, my files are on other drives and I installed windows again.
but after a few restart system files get damaged again. now I want flash it back to a version with full support with the amd x2 6000+. (flasht my bios with a x2 3800+ but someone said to me 1.0 bios version dont support 6000+ so flasht it before I did put in my new processor)
anyone can tell me the most stable version or I should flash it back to 1.0? (btw that backup I made with live update 3 is 1.8 too ??? )
can someone give me some advice me what are the best options for me? many thanks.

Quote from: Arcur on 16-September-07, 06:01:22
everything works fine now, but when I shut down my pc and after 5 minutes I turn him on, the computer starts but he lost the videocard driver ???
When I install the driver again it works fine and restarting the computer too, but a compleet shut down let him lose the driver or something.
Is this because I dont have activated my windows copy yet or just because when I first time restarted my pc, after installing chipset drivers, he deleted some files with checkdisk again (checkdisk dont start anymore now when starting up windows only just once, but windows did start succesfull after checkdisk without errors in windows).
I really dont know if this something has to do with my bios, but windows did never start checkdisk before starting up my OS and del. some files or something. If you dont know what this is I gonna try XP I think, because I almost want to trow my pc out of the window
EDIT:
Did delete the driver and let Windows install it byhimself instead of the exe file from Nvidia and now he dont lose the driver info anymore when I shut down my pc :D really I dont know, but strange things are computers or windows just suck
"but strange things are computers or windows just suck "
Its Vista... make sure that vista is up to date... especially of those patches:
Microsoft Issues Windows Vista Hotfix for Gaming: https://forum-en.msi.com/index.php?topic=110767.0
Update for Windows Vista (KB938979) - Performance Update: https://forum-en.msi.com/index.php?topic=110273.0
"everything works fine now, but when I shut down my pc and after 5 minutes I turn him on, the computer starts but he lost the videocard driver ???"
update vista via windows update and re-install the drivers...
Have you tested under XP? i don't expect such problems there..

K9N Platinum bios version & cpu support

Hi!
I need some help to clear up some questions regarding my MB.
MB: K9N Platinum, Cpu-z states my bios version is 080014, but i cant see it in the bios list for my MB, so what version is it?
Im currently running with a Athlon X2 5200+ Windsor, and i have got my hands on an Athlon X2 6400+ Black Edition, as far as i can see my MB is supporting that cpu, but is my current bios up to date for the cpu?
I have downloaded the MSI usb bios flashtool and i have set it up, and it boots in dos, but when i run memtest the program just says in one line memtest and a flashing + nothing more happens (i have left the pc for about 3-4min but no change) i feel that im starting to push my luck, and i dont want to kill this MB since its my work and gaming rig.
System spec:
MB: K9N Platinum
CPU: Athlon 64 X2 5200+ (want to install Athlon 64 x2 6400+ BE ID: ADX6400IAA6CZ)
RAM: 6Gb DDR2, 2x1Gb, 2x2Gb
GPU: GIGABYTE GTX260 Super OC Edition
PSU: CORSAIR HX520W

Quote from: Lando on 12-November-10, 08:06:01
Thx Svet.
And if im reading this right "Athlon X2 Windsor ADX6400IAA6CZ 6400+ 200 3.20 2M N/A F3 125 7250v18.zip".
http://www.msi.com/index.php?func=prodcpu2&prod_no=252&maincat_no=1&orderby=core_name%20ASC#menu
I need atleast Bios 1.8 to get my MB to work with the new cpu.
So now i just have to figure out why mem test wont run.
Quote
So now i just have to figure out why mem test wont run.
Memtest do have some bugs. You can do test with Orthos instead:
https://forum-en.msi.com/index.php?topic=103598.msg760534#msg760534
To check is your system is stable or not.
Once done you can ignore Memtest when asking after booting from the USB key
Also leave 1 memory stick only temporary in the 1st DIMM close to CPU socket before BIOS flash.[put remaining sticks back when BIOS flash is done/finished].
Quote
And if im reading this right "Athlon X2 Windsor ADX6400IAA6CZ 6400+ 200 3.20 2M N/A F3 125 7250v18.zip".
http://www.msi.com/index.php?func=prodcpu2&prod_no=252&maincat_no=1&orderby=core_name%20ASC#menu
I need atleast Bios 1.8 to get my MB to work with the new cpu.
Go for latest one:
http://download1.msi.com/files/downloads/bos_exe/7250v1B.zip

K9N PLATINUM RAM Issue

Hello there,
I have the following:
* AMD Athlon 64 X2 4200+
* K9N Platinum
* Kingston 1GB DDR2-800 Ram Dimm (PC2 6400, KVR800D2N5/1G) X4
* EVGA 512P3N802DX GeForce 8800 GT 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready
* Western Digital 250GB (7200rpm, 16MB Cache, SATA 2)
* no other peripherals
* Vista Home Premium SP2 32bit
* Thermaltake Lite Power W0294 PSU (500W)
DC Output +3,3V 24 A
DC Output +5V 24 A
DC Output +12V1 18 A
DC Output +12V2 18 A
Issue:
Installed 4GB of RAM and on boot-RAMcheck shows 4BG RAM OK.
Windows sees and reports this: Physical Memory, Total: 3070MB
I removed one by one the sticks and also swapped slots but the result is always the same.
Any ideas?

You are using a 32bit version of Windows. A 32bit operating system provides an address decode space of 4GB. Not all of the address space can be used for the system memory. Part of it needs to be reserved for addressing other devices (so that they can function). That is why it is actually impossible to full address 4GB of RAM with a 32bit OS. The amount of usable memory may very between 2.5 and 3.5 GB, depending on the system configuration.
Solution: Use a 64bit operating system.

MSI K9N Platinum Beeps at bios?

I've recently built my own PC, with a MSI K9N Platinum motherboard. Everything works fine, but everytime at the MSI Boot screen (Press del to enter bios blabla etc.), i hear 3 beeps.. I was wondering if this is normal or not?
Everything works fine though.
And another thing: Are there any options inside the BIOS i just have to enable/disable for better performance? I heard some stuff about 'spectrum' or something? And the memory command rate, i heard it's better to put it on 1T instead of 2T?
Any suggestions are welcome

Some boards have the habit of beeping more then once when USB-devices are connected. If you want to check your system for this, disconnect all USB-devices and boot your system.
About settings: yes, 1T's slightly better then 2T. However, your system may not boot if you set 1T command rate. If it won't boot, simply reset cmos to set it back to 2T.
Leave Spread Spectrum to Disabled, unless you start OC'ing.

K9N Platinum Sli trouble

so i have assembled my new system:
Athlon 64 x2 AM2 4200+
Zalman CNPS9500
K9N Platinum Sli
OCZ DDR2 PC2-5400 667MHz EL Gold Edition 2GB Dual Channel Kit
XFX Geforce 7600GT 256mb XXX edition (another one will be added today for SLI)
a SATA drive and a DVD burner (these arent important for the issue)
temps = idle 30-34 c, load - no idea havent checked that yet
Enermax Liberty 400w PSU
ever since ive assembled the system i ran into some strange thing - during the changing of setting in the BIOS it froze a few times.
Neverthless i was able to run the system, install windows, start to install other software (yesterday)
and today when i turned on the system, windows booted up, and sudenly it restarts and freezes up in pre bios stage...
Reset or Shutdown resulted in power up, but nothing happening, the monitor did even got out of standby...
after a few tries, and about ten minutes without power, it started up and went to a bios stage, giving a CMOS Bad Checksum Error... loaded bios with fail-safe settings, system worked fine and booted up windows... windows worked fine aswell, attempt to reboot and change the bios settings, gave a Bad Checksum from start and a freeze in bios. System is not getting to bios stage once again...
A Mobo problem that warrants a vist to the store, to return it?

Quote from: mr.flint on 25-August-06, 00:11:37
oh and the PSU got two +12v rails with 20a on each, should be enough?... (though Enermax seems to have troubles with math since according to them 20a+20a=30a)
trust me, enermax doesn't have problems with math. this is actually how it works. you cannot just add up the 12v rails to get the max amps on the 12v.
Quote from: mr.flint on 26-August-06, 00:33:23
managed to boot with the suspected mem stick - running memtest-86 - counted 746321 errors and then froze.... looks like the stick IS defective
try to increase the memory voltage a bit. i think you should be safe up to 2.1V. if you still get errors in memtest, then you have a faulty memory module.

K9N Platinum: CPU upgrade = Random shutdowns..

I just installed a new AMD Athlon 64 X2 3800+ EE in my MSI K9N Platinum motherboard (MS-7250 v1.0, the 070 model according to the box). I had updated the BIOS to version 1.7 before installing the CPU. Anyhow, I got the CPU installed and it seemed to be running fine. Until I started playing my games. Upon playing fifteen (!!!) minutes of Day of Defeat, the system completely turned off. COMPLETELY. No error messages. I check core temp's log to make sure the CPU wasnt overheating; it wasnt. The max temp was 38C on one of the cores. Just to make sure the CPU wasnt the problem, I ran two instances of prime95 for 5 hours and there were no calculation errors whatsoever. I also ran 3-4 loops of SuperPi, using the 32M test. No errors.
I have come to the conclusion that it must be the motherboard, and possibly it does not like the CPU. Or else it is having the same random shutdown problems as many other K9N Platinum/Ultra boards are experiencing. From what i have read, this issue only relates to boards that are 040, 050, or 060 models. I have a 070 model, and I AM GETTING THIS PROBLEM!!
Help!!!
Full specs:
MSI K9N Platinum MS7250 V1.0, BIOS 1.7, model 070
AMD Athlon 64 X2 3800+ EE (old CPU: AMD Athlon 64 3500+; had no issues with the 3500+) vcore: 1.225
1 GB OCZ Platinum DDR2-800, 5-5-5-15, 2.1v
eVGA GeForce 7800GT videocard with Zalman VF900, 490/1220
Hitachi Deskstar 7K80 SATA HDD
LITE-ON DVD-ROM drive
Floppy drive
3x 80mm fans, 1 cold cathode
Antec Truepower 430 watt PSU, dual +12v @ 17A a piece.
Any ideas?

well, i know that ACPI has to do with power saving features.
http://en.wikipedia.org/wiki/ACPI
and HPET also has something to do with CPUs
http://en.wikipedia.org/wiki/HPET
and MCP55 is the nortbridge.
so i suppose i can conclude that it protects from overvoltage or promotes more power-saving? i dunno i really dont care as long as my PC works now,

K9N PLATINUM(NON SLI) DUAL CHANNEL MODE PROBLEM

hi
put a new system together with the following specs:
amd am2 3800+(2ghz)
k9n platinum 1.20 bios
2x512 kingston ddr2(667mhz)
pci video(yes not pci-e)have not decided which vid card to get yet.
500w psu 12v 35a,5v 25a,3.3v 25a
liteon dvd burner
seagate 300gb ide 7200/16 meg cache windows xp-pro sp2 with all updates.
not overclocking or even trying to.
no sata drives connected.
has never failed to post,boot windows and no lockups or blue screens.
ok,i am trying to get the memory to work in dual mode.
everytime i put the memory in the dual mode slots,the cpu clocks down to 1ghz instead of 2ghz.
verified by bios,windows and cpu-id
i have tried different memory(both ddr2 533 and 667)667 installed now.
also never had any install problems with windows and everything runs fine until i tried dual mode.
after the cpu clocks down to 1ghz,the only way to get it back to normal is a bios reset( load defaults
or press red button).
if i leave the memory as single channel then i have no issues.
also cpu-id says the chipset for my board is nforce 550,i thought k9n platinum had 570 nforce chipset?
this might just be a problem with cpu-id though.
any thoughts on the cpu down clock problem in dual channel mode?
thanks,jeff

1 assume you can get into BIOS with 1 stick only?
Go into the BIOS and manually set the timings and voltage to what your memory manufacturer recommends. Use a 2T command rate and see if it works.
Try both "sets" of dual channel slots, i.e. the two left slots or the two right slots.

K9N Platinum Supported CPU's

Hi everyone,
My question is fairly straightforward. I currently have a MSI K9N Platinum AM2 NVIDIA nForce 570 Ultra MCP in my HTPC. Long story short I found out that my CPU was not powerful enough to decode 1080p content so I have purchased a new CPU, a AMD Athlon 64 X2 6400+ Windsor 3.2GHz 2 x 1MB L2 Cache Socket AM2 125W Dual-Core Processor: http://www.newegg.com/Product/Product.aspx?Item=N82E16819103228
According to the CPU support list here:
http://global.msi.com.tw/index.php?func=prodcpusupport&prod_no=252&maincat_no=1
I should be able to use this processor with my motherboard with BIOS 1.A, so I downloaded Live Update and flashed the BIOS to 1.A (I believe it now shows it as 1.10, though I am not sure where that is noted in POST) in preparation for the new CPU (the flash went fine).
I am wondering if anyone has any experience using this motherboard with this CPU? Is it truly compatible or the CPU simply too new an edition for my motherboard? I can probably still cancel my order and get a 5600+ or equivalent if necessary.
I appreciate any feedback/responses.

Quote from: Bas on 11-March-08, 00:59:10
I bet it's your videocard not handling it very well.
Somewhere rings a bell that nVidia is lacking hardware decoding with videocards, but can't remember exactly what it was.
Well that is the long story short part :D. In a nutshell yes it is my video card, I have a 7900GT and essentially nvidia's purevideo decoder for HD content has NEVER worked properly. This basically means that the CPU has to handle the entire decoding load, which my old CPU is incapable of doing (hence all the stuttering, audio/video out of sync issues I get). Basically I had two options:
A) Buy an ATI, one of the 3xxx series that actually does x264 decoding
B) Replace the CPU with a faster/better/dual core one (many codecs can now use dual-core CPU's for decoding HD content)
In the end I made the decision to replace the CPU to resolve the problem because while buying a 3xxx series card does appear to work WONDERS for HD content decodes (it reduces the CPU load to 5-10% in some cases) if the file is encoded in some non-standard way that the GPU decoder doesn't recognize the load is going straight back to the CPU (like my Nvidia 7900GT is doing). This way I figure I get a better CPU and it should be able to muscle it's way through decoding anything I throw at it. If I need to replace the GPU someday or want to do it in order to reduce the load on the CPU I can always look into one of the 3xxx series (I hear that the nvidia 8600's might actually do some HD decoding as well) though I have really become skeptical of ATI cards lately.

K9N Platinum SLI - Powering up the PCIe cards

Hey everyone,
I've got a K9N Platinum SLI board. This board has a power supply input point called PWR2, which according to the documentation is used to provide power to stable the operation of graphics cards. My graphic card is BFG nVidia 9750 GT. This card has the PCI-Express external power plug in the back, and my power supply has a dedicated (red) connector for this purpose, which I have attached properly.
The PWR2 is currently connected also, into one of the black 12V connectors. Otherwise, everything is running fine and smooth, but I am sometimes (once a day or so) experiencing random shutdowns during intense gaming (playing LotRO). Stress testing does not cause a shutdown: I've ran 3D Mark 2007 straight for 8-9 hours, while having a CPU Burner application toast the CPU at the same time. But no problems whatsoever. No other games exhibit this problem either.
Since I am providing dedicated power through the extra connector at the back of the card, should I leave the PWR2 connector unplugged ? Is there a chance that using these two connectors at the same time causes the 12V rail to overload, and the PSU shuts down to protect itself ? When this shut down occurs, the power LED is left blinking and I need to plug out the wall socket and wait for several minutes before the blinking stops and it starts up again.
My computer has an Enermax Liberty 620W power supply, and AMD Athlon X2 4600+ CPU. So there should be enough juice, at least. I've tried the tips and tricks suggested here. Using USB-connected Keyboard and Mouse does not correct the issue. I've also verified that this is not an overheating issue. My CPU is cooled by a Scythe Ninja tower heatsink and two 12 cm fans. It is possible that the northbride is heating up (it burns the finger on touch when under load), but from the Web, I've understood that the stock passive heatsink should be enough, and that the NB chip can take rather extreme temperatures.
* UPDATE *
Plugged the PWR2 connector out from the MB, and update the BIOS to 1.10. It's working as usual, but haven't ran any games yet. Heavy gaming usually reproduces the issue, so I'll write more when I know more.

Updated information on the case.
I've been running 2 days now with the PWR2 unplugged. I have had zero problems with shutdowns since. The only problem I now have is that the USB keyboard and mouse refuse to work in Windows XP after an initial bootup from powered down state. I have to unplug and replug them at the login screen in order to get them work again.
So, I decided to do a final sanity check, and replugged the PWR2, then went gaming. After 2 hours of playing, my computer shutted down for the first time. Plugging in the cable did not solve the USB problem either.
As of this day, I'm leaving it unplugged. It seems like an irrelevant connector, which just causes problems.
** Update **
After following Bosskiller's instructions on another thread about using the "Clear CMOS" button and then reconfiguring BIOS from scratch, the cold boot USB issues were solved. The USB devices now work straight after a cold boot, with no need to replug them.
I recommend that the PWR2 -connector info is added to the list of known problems in the sticky thread. If you have a GPU card which takes its power from a dedicated rail (and your PSU has a dedicated connector for this purpose), then leaving the PWR2 -connector unplugged might resolve your shutdown issues, like it solved mine.
After all, according to the manual, this connector is used to give more voltage to the PCI and PCIe busses, and some PCI/PCIe cards might not like this idea at all. There is a reason why these cards have an additional power plug on them...

K9n Platinum S3 BIOS Issue

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