K9N SLI 2F, another networking problem

Hi @ll!
I've read a lot about the networking random shutdown problems of some K9N SLI 2F Series, but mine is not within the buggy list (S/N: 601 - 7250 - 090...). But my problem is nearly the same:
I've tried Windows Vista x64, Windows XP x64, Windows Vista32 and Windows XP32. Everytime when i leave the settings for my network controllers on standard settings, my computer shuts down as soon as i start network traffic by my browser. If i just do a "ping xxxx.xxx", i get responses without problems. But i can't use my network otherwise.
If I switch my network controllers to 10Mbit in the device manager, i have no problems with surfing or network traffic.
Has anyone some tipps or advices where my problem comes from or what i can du furthermore?
regards, Andy

OK, thought the problem doesn't require more hardware information
CPU: AMD Athlon 64 x2, 5600+
RAM: Kingston 4 x 1 gig PC2, 5300 CL5
MB: MSI K9N SLI 2F, Bios Update 3.80
GFX: ATI x800 PRO
HDD:
1 x Seagate Barracuda 7200, 200 GB SATA
1 x Western Digital WD2500, 250 GB SATA
1 x Western Digital WD400, 40 GB SATA
1 x Samsung HD501LJ, 500 GB SATA II
PSU: Enermax Liberty 500W

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K9N SLI Platinum - RAID 0 problems

Hi everyone,
I've just assembled a new pc with a K9N SLI Platinum (PCB Ver: 1.1; BIOS Ver: 1.3), 1GB (2x512MB DIMM1 & 3) Kingston KVR667, 2 Maxtor SATA-II disks, GF 7300GS with 256MB DDR2.
I'm able to install windows with one disk but can't do it with both disks setup as raid 0.
I've tried both Sata Raid Driver from cd and from MSI website.
With the driver from the cd windows setup finds the raid and starts installation, but freezes somewhere (totally random) without finishing.
With the driver downloaded from the website windows setup can't find the raid.
Any hints?
Thanks

Quote from: manuelmont on 25-September-06, 07:13:09
I tried once again to install windows and this time setup finished successfully and the computer boots from the raid. So my first question: what is the relation between the bootable option at the raid setup and the fact that the system booted without it?
I doubt that the removal of the floppy from the bootable devices list has anything to do with the successful install...
Well if it is grayed out in the RAID setup is because it is already Bootable, as for the removal of the floppy from the bootable devices, there are things that only the gods of the computers know...
Quote from: manuelmont on 25-September-06, 07:13:09
Everything seemed to work ok but the computer started to freeze once again during installation of other software which made the system unstable.
Then I replace the graphics card with an ATI X300 (just for testing) and the system became stable. I installed software, played some games without problems. As the GF 7300GS I removed works on another pc this seems to be some compatibility problem between the MB and the GF (turbocache?).
I used Sisoft Sandra 2007 Lite to test/benchmark the system. All the tests were almost normal (except memory - benchmark showed values a bit lower than I expected!) but I could not run Physical Disks Benchmark module neither Physical Disks Hardware module (but could benchmark the file system). What does this mean?
The disks are in fact DiamonMax 17 (6G160E0) but I'll try another brand as well, these are the only disks. On the IDE channel I only have one dvd recorder.
Your PSU has way to low amperage for that system, the test is the change you made from a superior GFX to a lower end one, the NX7300GS eats alot of amps in comparison to the X300, and it does not have nothing to do with the TurboCache feature.
As for Sisoft Sandra I don't use that "I'm a potty mouth" (pardon my french ) I use Lavalys Everest or for disks HDtach, and others.
You could not test the physical disks because they are in RAID mode, but you can test or benchmark the logical disks because they are the partitions you created in the physical disks and are divided by the 2 disks, half in one half in the other...
I hope this will shed some light into the questions...
Be well....

K9N SLI Platinum operating system problems

I have a MSI K9N SLI plat MB, an AMD 64 x2 4200 cpu, a EVGA nvidia 7600GS video card and 2gb mem.
My problem is that I am unable to get windows XP, XP64, or Vista to run on my IDE hard drive.
I am running XP from an SATA HD and it works OK. I have a CD/DVD and IDE HD on the IDE controller.
Updated BIOS to 1.3, no help.

Quote from: don_mccarter on 24-August-06, 14:16:44
I have a MSI K9N SLI plat MB, an AMD 64 x2 4200 cpu, a EVGA nvidia 7600GS video card and 2gb mem.
My problem is that I am unable to get windows XP, XP64, or Vista to run on my IDE hard drive.
I am running XP from an SATA HD and it works OK. I have a CD/DVD and IDE HD on the IDE controller.
Updated BIOS to 1.3, no help.
==============================
Trouble here too
My system bit similer to your one:
MSI K9N SLI Platinum
AMD Athlon64 X2 4200
2x 1Gb Kingsten DDR2 Dual Channel
2x 256Mb nvidia 7600GS on SLI
1x 160Gb SATA HDD
1x 250G SATA HDD
1xDVD Rom
1xDVD-RW
750W Thermaltake Toughpower PSU
The problem what I'm getting is when I'm try to burn a DVD or CD... my PC shuts like you unplugged your power (not restarting)
first I thought something wrong with my DVD burner then I tried with a new one(had ASUS one now having LITE-on).. but still happening.. I have update the BIOS v1.3 as well..but didn't do any changes.. My DVD-RW connected to IDE controller.. that's only thing controlled by IDE.. don know how to fix this... I'm sure it can't be the PSU.. I changed my PSU 500W to 750W because of this matter.. I guess something wrong with the IDE controller.. only MSI can fix this... I'm waiting for a reply from them... :(
Kamal

Yet another network problem (SIOCADDRT: No such process)

After IP address of router in my apartment changed I have troubles with bringing up my network connection. I changed my gateway address and now it fails with:
:: Starting Network [BUSY]
SIOCADDRT: No such process
[FAIL]
however
$route add <gateway ip> eth0
temporarily solves the problem:
[dreamer_@dream02 ~]$ sudo /etc/rc.d/network start
:: Starting Network [DONE]
any ideas how should I repair this to start my network automatically?

dreamer_ wrote:
rc.conf:
lo="lo 127.0.0.1"
eth0="eth0 192.168.3.128 netmask 255.255.255.0 broadcast 192.168.3.255"
INTERFACES=(lo eth0)
gateway="default gw 80.48.72.175"
ROUTES=(gateway)
the only thing that changed is gateway ip (previous was 192.168.13.something). I was playing with different netmasks and broadcast ranges but it didn't help
The problem is in the lines:
gateway="default gw 80.48.72.175"
ROUTES=(gateway)
If you are using DHCP the line ROUTES=(gateway) should read ROUTES=(!gateway) <-- notice the !
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R.

MSI K9N SLI-2F+4GB DDR2 big problem....

I got this PC:
MSI K9N SLI-2F
AMD Athlon64 x2 4200+
2x1 GB DDR2 Vitesta Extrema 800+
WD 500 GB AAKS
LEADTEK 8800 GTS 640 MB
450 W PSU
Recently i got another 2x1 GB DDR2 Vitesta Extrema 800+.My OS was Windows XP SP2.Of course i knew about de 32bit SO limitation and didn't expect my Windows to take advantage of all 4Gigs.My PC started to freeze on random ocassions.so i decided to install Windows Vista x64.It didn't start to install it just freezes after unpacking (gray bar with black background screen).I take out 2 Gigs.Works like a charm,so it isn't a dvd read problem. I inserted the 2GIGS back PC doesn't even get to boot screen(with 2GB works).I installed SP1 too,to get all hotfixes up to date.same thing.Memory hole is enabled in bios.Tested the sticks 1 by 1 no problem with eighter of them.Just as i write i am running the recently bought sticks,for 2 days,no problem.My bios is 3.8 now,but i downgraded from 3.9 thinking it may solve the problem.I also don't think that the PSU is the problem,because before i had 4x512 DDR2 800 GEIL Ultra (2.1V) wich practicly need same power to run.Hope somebody can help me :(

Quote from: Bas on 26-March-08, 22:01:33
You have tested with all sorts of el-cheapo PSU's.
Do you really believe any of those will run a power eating videocard like a 8800GTS?
I believe it's the videocard and/or the powersupply.
As you managed to install XP without a problem it seems, well then the memory and CPU are fine, as they use a whole lot of memory and CPU power during install.
It would have stalled during installation as well if it was the board/CPU/memory.
However, during that stage the videocard isn't initialized to full potential, but just acting like a 100 year old VGA card and thus not using any power or GPU calculations at all.
Please test your system on a >30A @ 12V powersupply SINGLE rail, to exclude the PSU.
Also, take your friends videocard and put it in your system, but with a heavy 12V amp psu.
Wouldn't be the first time it was both.
Bad memory/CPU/board usually results into BSOD, but underpowered PSU can also cause freezing and those nVidia videocards do react on unstable power by reducing stuff....so yes it can run underpowered...but how long and how good?
BAS, thanks but no thanks.Already solved,and it wasn't the PSU, you PSU FANATIK ).I already said i finished Crysis with this stinky PSU ,no problems.Go buy a PSU that costs twice your PC if that makes you happy,untill proven otherwise i stick to my cheap'o PSU

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... shows a list of all set-up printers.
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Another version of Leopard - Windows network problems

Like many others, I have a networking problem after installing Leopard on my G4 Powerbook. I had a successful ethernet network previously using two Windows 98 computers, an iBook G3 running Tiger, and my Powerbook G4 running 10.3.9
Only the Powerbook was upgraded to Leopard. The Powerbook can see, connect to, and read & write to all other computers using the Finder - Go - Connect to Server command. No problems, so I am better off than many others who have reported worse problems.
BUT, my Windows PC's cannot see the Leopard machine. I have done what I thought I should in the System Preferences - sharing pane. I have tried setting both folders and drives to shared, and have tried deselecting them and then selecting them again as some have suggested. My Powerbook with Leopard is still invisible to the PC's, both trying to use the "Open" command from a program, or the "Network Neighborhood" command from Windows Explorer.
Any suggestions? I know that some users cannot talk between PC's and Leopard at all, so I am glad I can at least read & write from the Leopard end!

Spoke too soon. For the past few weeks since installing Leopard, network connections have been erratic. The Powerbook with Leopard was working well yesterday, but then suddenly ceased to see the Windows computers. For the time being I have gicen up and reinstalled Tiger.
I will keep checking this forum and give Leopard another try when it seems to work better with networking.
Makes those Apple TV spots poking fun at Vista users going back to XP seem a little amusing.

HT4407 Is there any way to download these files manually from another source? The download from boot camp keeps stopping at around 25% and then produces the error "Can't download Windows Support Software because of a network problem". Thx!

Is there any way to download these files manually from another source? The download from boot camp keeps stopping at around 25% and then produces the error "Can't download Windows Support Software because of a network problem". Thx!

No. This issue is dicussed here frequently. The only option is to be patient and try often. Search this forum for other posts about this issue.

MSI K9N SLI V2 nForce 570LT 64 Bit Driver Problems

System Specs
X2 4400+ 2.3ghz
8800GT 512mb GPU
250gb HD
4x 1gb G-skill pc6400 DDR2 800
MSI K9N SLI V2 nForce 570LT Socket AM2
vx450w PSU
Lite-on DVDRW LH-20A1S
So I recently jumped ship from XP Home to Vista x64 to XP pro x64 and I am having issues updating my drivers I downloaded the MCP55_64_9.17_MW31006 at this site http://global.msi.com.tw/index.php?func=downloaddetail&type=driver&maincat_no=1&prod_no=1415
NVIDIA nForce 550/570/570/590 SLI System Drivers
When I run the install though nothing happens Nvidia splash then nothing and the files are not recognized by the device manager.
Any idea what the issue could be? sadly need the ethernet update so I can connect to the internet lol also the 2 discs have no effect neither work vista or the xp (tried vista since the x64 drives actually worked on it)

Vista x64 ultimate. I wanted to try X64 XP but I ran into problems thus the original post ^-^
Vista is nice I could live with it for Dx10 but man UAC sucks every attempt to disable = vista freak out and repair the file ^-^
ATM I use XP Home with the DX10 crack (I own vista so I don't see a issue) but yet to install any games on it. I will load up and check it out Still the fact I get medium with x8 aa is good imo. Game looks fantastic and with luck the FC2 engine won't be such a resource whore like crysis. I recall the Sandune (think thats the name) for FC1 even on low settings things still looked fantastic.

MSI K9N SLI V2 MS-7390 onboard sound problem

Hi,
My PC has stopped outputing sound. It was working fine yesterday morning, but when I got home from work 8 hours later it no longer seemed to want to play any sound. I know my taste in music is a bit naff but it not playing anything is a bit extreme!
I've checked the volume, reinstalled the sound drivers, checked the speakers and the cable by hooking them up to an iPod and I'm still not getting any sound. The onboard sound is enabled on the BIOS. Device Manager is showing no conflicts or problems, as far as it's concerend it's working. I've had a look at the motherboard and there's nothing I can see looks like it's shorted. I've even emptied my HDD and done a clean install of Windows XP again.
I'm really at a loss to see why this has happened and what to do to fix it. I guess buying a sound card would be one way of getting round it but I'm still puzzled about why it's doing this in the first place.
My motherboard is an MSI K9N SLI V2 MS-7390 and the on board audio is Realtek.

No, your bad choice of music shouldn't be the problem. That is if not a neighbour broke in to your house to stop the darn noise. Do you know if someone has changed anything?
Does the rest of the system work fine? I'm thinking there was a problem with return from hibernation or something.
What source do you have? CD for example.

K9N SLI/K9N Ultra NVIDIA nForce 570 series chipset based. Boot problems

Hi
Im new to these kinds of things and I cant claim to be a tech wiz. I have never encountered this kind of a problem and im not familiar with anything relating to computer hardware, motherboards etc. I will however attempt to describe my dilemma. I have a booting issue with my computer and regardless of re-installing the OS the problem persists. To even get the computer to start i might have to press the power button repeatedly about 30 times. I also get this message on the screen: "Warning!!! The previous performance of overclocking is failed and the system restored to the default settings....". However, I have never attempted any kind of overclocking, nor do I know how to do such a thing. To solve the problem I tried various things, first I reinstalled the OD(win vista). Then I ran various diagnostic tests and eventually entered BIIOS and tried to solve the problem by loading failsafe defaults and later loading optimized defaults. I also reset the CMOS using the red button located next to my chipset. None of the above seem to work and currently im at a loss as to how to solve my predicament. I have no cash to buy a new PC so I HAVE to make it work!
Keep in mind im merely refering to what it says on the box and I have no idea whatsoever about the meaning and/or interpretation of the combinations of letters and numbers!
Specs:
AMD Athlon X2 6000+ 3.0 Ghz Socket AM2 2MB BOXED
MSI K9N SLI-2F, nForce 570 SLI, DDR 2, Socket-AM2, 2x GbLAN, ATX, 2x PCI ex16
Cooler master Mystique 631 black
Hiper type-R black 580 W
Silent 18 db, 4x SATA, ATX, SLI, 20/24 pin
Samsung SpinPoint T166 500gb SATA 2, 16 MB 7200 RPM
2x Corsair value s. PC5300 DDR 2, 2048 MB
XFX GeForce 8800 GTS 500M 640 MB GDDR3
PCI-Express, 2x DVI/HDTV/HDCP, 320-bit

"starting" means my fans and everything else starts running. Well, starting means the power goes on(and stays on) with the familiar whirr of the fans . starting also implies the OS and everything else works. However I cant even get the power to stay on before pushing the power button about 30 times. Slowly and surely it powers up but it really struggles as of late. Its an old computer(about 5 years) and it was running fine until about a week ago.
Im merely a casual user of my pc, although I enjoy playing games such as world of warcraft, rift or any other MMO. I was thinking that it could be the power supply that is on it's last leg. However, I dont know how to change to a new one, despite reading the guides posted here. I also checked the power supply manual but the information contained within was far too technical for me to comprehend, it might aswell have been written in chinese.
Im also hesitant to flash BIOS as I have never done such a thing and as far as I know I might fry the whole system if I dont do it right. Lets asume I want to change the powersupply for a new one, should I go with an identical model as the old one? The power supply is a HIPER type-R series 580 W. I can provide all the technical data if necessary, I just want to solver the problem. I cant really think of any other likely solution as it should work asuming the power suppy isnt the problem. I reinstalled the OS from scratch anyway thinking it might be a software problem.
Could the problem also be caused by an old BIOS version? Not sure which one I have right now but considering I have never dared to update it, its more than likely an old version.

K9N SLI - Overheating problems

I occasionally get some problems with components overheating. I have Speedfan 4.37, (from www.almico.com), installed to monitor system temperatures and it gives 7 readings. Can anyone tell me which components these names refer to so that I can narrow down where the problem originates :-
Local; temperature now 46C
Remote; temp 60C
System; temp 49C
CPU, (presumably the Athlon 64X2 4800+ processor); temp 52C
AUX; temp 51C
Core; temp 45C
GPU, (I think this is the graphics card which is an MSI NX7300GT). temp 62C
According to the almico website it is the mainboard manufacturer who decides which names to give to which component and they do not list this MoBo on their website.
The above temperatures are sometimes quite a bit higher.
I am not sure if removing the CPU, cleaning off the paste and adding some new heatsink paste will solve my problems as there seem to be so many components with high temperatures, and they all seem to increase at the same time when the beast decides to get too hot. The overheating problem is intermittent and is partly solved by running my computer with the panels off, which I would prefer not to do.
Any help appreciated,
Viv

Quote from: BuD_Sp3NcER on 16-March-09, 21:04:19
I have the same board as my 2nd Rig, I found speedfan to be a bit off on the readings for the K9N SLi though. Using the Chart Feature in Speedfan you can determine what temps are represented after giving the macine a Full Load, especially gaming. The GPU will in most cases be the highest, The CPU will be the one that tapers down the chart rapidly after exiting a game, the Chipset/Mosfet Not sure exactly what it's reading will also drop but not as much & rapidly.
Use coretemp for CPU. I remember being concerned about the readings so I modded the Chipset with a Coolermaster chipset cooler by simply Cable-Tying it to the existing heatpipe cooler + some compound thus not voiding any warranty. Sounds weird but It does work as it gets quite warm which means it's moving the heat off the CHIP itself. I MOD all my boards in this way
Now that I have installed the blower fan below my graphics card all of the temperatures are lower, which I hope will ensure that I get no more unexpected shutdowns. Even if the Speedfan temperatures are not accurate, at least monitoring them will show if any are increasing, which is when problems could occur. The suggestion about adding a Coolermaster is interesting, but I think I would prefer to just replace the CPU cooler as there is no warranty problem because I built the computer myself.
Viv

MSI K9N SLI SATA problem

i have just board the MSI K9N SLI and a AMD X2 6000+ processor.
i have a ATA harddisk with my system on and a SATA harddisk, BUT i can't see my SATA.
i can see it i the Bios and at the "remove safely icon" BUT nowhere else!!
enyone now WHY, i have a lot of programes on that HD that i need.
Hope you can help, fast.

read Moan Guide
ensure that RAID is disabled for SATA channels from BIOS.
from Windows, type in "run": diskmgmt.msc and check the drive status.

K9N SLI with weird USB beeping and freezing

Greetings
I have a K9N SLI-F V2 MB that seems to have a weird reaction to USB devices. Right now I only have PS/2 devices plugged in (Keyboard & Mouse) and It seems to boot and run normally. I get only 1 "beep" immediately after the BIOS screen, and it runs XP just fine. If I replace the PS/2 mouse with a USB mouse, I will now get an addition "chirp" (I think of these more as a "chirp" because its a little faster than the "beep") during the BIOS screen, as well as the original "beep" right after the BIOS screen. One thing I discovered is that the number of "chirps" I receive is the same number of USB devices I have plugged in. So if I have a USB keyboard, mouse, and printer (3 USB devices) plugged in, I will get 3 "chirps" during the BIOS screen, and still get the single "beep" after the BIOS screen. The other thing is that whenever USB devices are plugged in, Windows will freeze, but with the PS/2 devices, it works fine. I cant really find a pattern to the freezing, sometimes during the log in screen, sometimes if the computer has been idle for a while, and sometimes while using browsers/applications/games, but it ONLY freezes when USB devices are plugged in. I have gone through each USB device and made sure that all the most recent drivers are installed. So whats the deal....any thoughts?
System info:
K9V SLI-F V2 nVidia 570LT SLI chipset Motherboard
AMI BIOS - MSI Ver. 1.1
AMD Athlon64 x2 5000+ 2.6 Ghz Processor (AM2 Socket)
4 Gb PC2-5300 DDR2 RAM
EVGA nVidia 9800GTX+ Superclocked Edition 512Mb
Seagate Barracuda 7200rpm-8mb Cache
Windows XP Pro SP3
Thaanks

Quote from: BringBackXP on 10-August-09, 02:02:19
Greetings!
Wonkanoby:
Yes I did a CMOS clear and replaced the battery with new. Bios was then updated to most current: v 1.1
Biggin101:
Wow, I dont feel alone. Yes some similarities. My thoughts are the same: I dont see how this could be OS related. I am currently trying a different memory setup too that doesnt seem to help really (2 x 1 Gb 800Mhz sticks in dual channel mode slowed to 667Mhz). Yes , I also test the same components in other systems with no problems, but when i get everything back on the MSI board, it starts again. I also have been getting the "device removed" message but for my rear audio plug. Since the new PSU I installed certainly have seen a reduction in these odd occurrences, but no total solution.
My board has the nV 570 chipset
hows your PCIe Slots, running on all x16 lanes?
TP:
Ill go ahead and post all Specs I can remember, and get as many details as I can later when Im back at that computer. Yes I have been using the MSI site for drivers/patches. XP has been installed a few times and then updated to SP3, so i dont really see what I could be missing. Looking in the BIOS I dont see anywhere to manually select x16 lanes for the PCIe slot. everything has been reinstalled as if it were the 1st time out of the box
thanks guys!
(PC specs in signature)
I too have seen a bit of difference since PSU upgrade,and this morning I transferred over 200 gig of files without a hitch,
Then went onto the next set of files,another 100 gig or so and bam 30 seconds in(never even completed the first file transfer),PC locks up again.
And just when I thought I "mysteriously" fixed it.
Now I get a "network discovery" is not turned on message and when I turn it on it will not stay turned on.
That I believe is OS related.But due to the other issues I am experiencing I am not 100% sure.
Thank god I use Network Magic by Cisco,so I do not need Discovery to transfer files.
Only time I seem to have this lockup problem is when the USB drives are directly connected(any USB port,3 front,6 rear)
to the desktop PC in question.And none have the "extra" lead on Pin10 as per another post here.
I can connect to the network with these drives on any PC in the house,
I have 5 to choose from or my laptop and have no Transfer issues at all.
biggin...

K9N SLI suddenly shuts down!

K9N SLI (not platinum) bios 3.1
AM2 X2 3800+
Zalman CNPS 9500
2x1GB DDR667 Team Value (5-5-5)
Sapphire X1800GTO2 512MB
Hitachi SATA1 160GB
Pioneer DVR-108
LC Power 560W Titan:
3,3V: 35A
5V: 40A
12V1: 18A
12V2: 18A
two 80mm fans taken from a PSU
Zyxel external ADSL Modem
Operating System: Windows XP SP2
The Problem
The PC suddenly shuts down as if the power cord is pulled from PSU.
Detailed Description and what I've tried
The first days after I've build the system everything looked to work properly. I tried to run 3d mark 2005 and it ran without problem. Then the fourth day when I was surfing on internet and listening music with winamp, suddenly the pc shut down. This happens three times and I noticed that it depended from the audio device of the MB, in fact if I didn't play music the pc didn't switch down, otherwise after about 20minutes I played music, the problem occured.
So I thought the problem was the PSU, so I ran 3d mark 2005 for more than an hour and it ran without any problem! I was very surprised. I tried also to run Prime95, one for each CPU core, and also Prime ran without problem.
Another problem was that after about 1-2hours that I was connected to internet, the connection suddenly freezed and the OS couldn't shut down the pc, so I had to use Reset button.
After someday I noticed that the motherboard has 3 power connectors!!! I've connected to the PSU only the 4pin and the 24pin!! So I connected also the molex to the PSU. So I thought to have found and solved the problem, and for about 48 hours the PC worked properly, also for 6 continous hours, I can play music using the Realtek audio device and no more problem with connection.
But then again after about 48hours the same problems!!
So I've tried to disable the realtek device and to use a sound blaster 1024 Live! And it seems to work, I can play music and the system doesn't shut down. I've also disconnected the two 80mm fans, it seems to help.
Another strange thing is that now when I switch on the system the MB emits two short beeps. Before it emited one long beep. What does it mean? I don't understand the cause of this change.

True, the computer doesn't need that amount of power.....but....
You are miscalculating the powersupply.
Just because it states it can do 17A (or what ever figure) it doesn't do that all the time.
Here you have the details of how a PSU handles output, then you might have a clue what we are talking about:
Quote
3) Specify a low operating temperature for rated output. This is quite common, but again not often seen in consumer brochures, but rather tech spec sheets provided usually only on demand by engineers or corp buyers. A typical PSU operating temp statement is somthing like this:
0?C ~25?C for full rating of load, decrease to zero Watts O/P at 70?C
Examine what that says. Full power (let's say 400W) is available when the unit is at 0?C ~25?C. Hmmm. Think about this.
Have you ever felt air blown out of a PSU in a PC running absolutely full tilt (which it would have to do to get anywhere near 400W output) that felt cool to the fingers? 25?C airflow would feel exactly that: Cool, given that normal body temperature is 37 ?C.
So this PSU cannot deliver full rated power when its temperature goes over 25?C. OK, what happens to the max power output capacity above that temp? It decreases gradually so that by the time the PSU temp reaches 70?C, the PSU cannot deliver any power at all. So if you assume that this power drop as temp rises is linear, then max power capacity will drop by ~9W for every degree over 25?C.
Now having examined as many PSUs as I have over the last 2~3 years, I have to say there's not a single PSU in ANY PC I have ever used or examined that would not measure at least 30~35?C almost anywhere inside the PSU under almost any kind of load. And if/when it is pushed, 45?C is nothing at all, especially for or near hot running components like voltage regulators.
So let's say 40?C is a fairly typical temp inside a PSU. This 400W rated unit would actually be able to deliver a max of just 220W at that temp. Hmmm. Interesting, isn't it? At 50?C, the available power would drop to just 130W. No wonder some PSUs have 3 fans each capable of 50 cfm!!
Here's a simple fact: Really high quality PSUs are actually rated for full power output at as high as 50?C. The trick is get a hold of the spec sheets that tell such information so you can compare apples to apples. Or ask.
Source: >>SilentPCreview<<
I suggest you start reading on their site as to what they have to say about powersupplies.
As those PSU's DO NOT DELIVER the amount of power under all conditions....many people have blown their system to pieces already by ignoring the heat-factor.
That is we are telling all along, you don't need 33Amps....but you need loads of headroom when summertime temps are there.
Because then your PSU doesn't deliver near the ammount of power you think it does.
Also, split rails are far worse then single rails when it comes to that...heck a lot of so called splitrails are not splitted at all, like the some of the Coolermasters....
Do yourself a favor and get to know how PSU's work, as they are NOT what you think they are.
And to quote a bit more from the same source:
Quote
What's really interesting is that Intel has tacitly waived the 240VA limit requirement in its PSU validation program for the better part of a year. Intel maintains a web page listing all the ATX12V they have tested that "meet MINIMUM electrical, mechanical fit and functional compatibility" with Intel desktop boards and processors. For the 32 ATX12V v2.2 PSUs tested in 2005 that are on this list, 17 models are identified as having at least one output line that exceeds 240VA. And yet, these 17 models are on Intel's approved list.
According to the engineers I spoke with, the majority of these 17 models have just one 12V line. They also point out that there are another 20 or so ATX12V v2.0 PSU models on the Intel list, and none of them were tested for the 240VA current limit conformance. My sources say that if these models had been tested, more than half would not conform to the 240VA current limit because they have only one 12V line.
In the last couple of months, my PS engineering sources report, Intel has verbally informed them that the 240VA limit has been removed. A single 12V line is now "officially" approved, never mind what ATX12V v2.2 specifies.
What does all this mean? Essentially, the only potential benefit of dual 12V lines is improved safety, and this is questioned by the engineers I spoke with. There are many downsides to dual 12V lines, including higher cost and the extra headache of ensuring adequate 12V current for all the components in complex, high power systems. For the consumer who is trying to make a choice among the myriad of PSUs available on the retail market today, the most practical approach regarding dual 12V lines and power capacity is to consider only the combined 12V current capacity. (It will certainly be interesting to see how Intel handles this issue in the next version of ATX12V.)
But you better read their site, as there is way more info there regarding PSU's then any other site I know of.

K9N SLI 2F, another networking problem

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