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Asus P5K-E wifi stable but randomly won't POST

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October 28, 2007 5:23:31 PM

I recently put together this computer:

Asus P5K-E wifi motherboard
E6750 core 2 duo
Crucial Technology Ballistix BL2KIT12864AA804 2GB kit DDR2-800 PC2-6400
Geforce 8800 GTS
WD Raptor 150g hard drive
OCZ GameXstream 700w power supply

The problem is that the computer will fail to POST, but it's random.. or seemingly random. The computer when it does POST works perfectly fine, I've run stress tests with Orthos, played 3d games for hours, no problem at all. But if I do a full shutdown and try to turn it back on, it fails to post and I have to reset several times before it does.

Here is what happens in detail. I hit the power switch, fans come on, lights come on, everything seems to be okay, but no beep and no video. The video card fan will then blast on full. Then I'd have to hit the reset switch, and the system will turn after a few seconds, wait another few seconds and come back on. Now the process just repeats. Eventually I get lucky, I'll hear the beep and the computer will post normally.

I think this is the asus motherboarding recovering from a failed POST, usually after it finally comes back on it'll say Overclocking Failed. It will usually load up the default settings for bios. But that's random too, even when I leave it at default settings with no overclocking, this will happen and the motherboard will underclock it even more. basically my CPU is at 2.66 (333x8) so it will revert to that, or it may go even lower and go to 2.1 (266x8). Normally I have it run at 3200 (8x400) in which is it very stable as I stated in the first paragraph.

What's even more annoying is that once the motherboard does the recovery thing, and for example it sets my cpu to 2.1 (266x8), no matter what I do to change the FSB stays at that setting. I can change the FSB to any number and it will save that setting in BIOS, but in reality doesn't change because CPU-Z and even in the POST screen it'll use my FSB at 266 and report my speed at 2.1. Sometimes if I'm lucky, it will actually change it but normally it gets stuck at that setting. The only sure way I can get it working normally again is if I unplug the power cable, wait a few seconds then plug it back in. That resets something in the motherboard..what exactly I'm not sure.

As I said its seemingly random, I can get it working at 3200 is if it actually POSTS and keeps my settings in BIOS. But even If I don't overclock it and leave it at 2.66 it will do the not posting thing and sometimes go down to 2.1.

I've tried clearing CMOS many times by removing the battery and moving the jumpers.

I've tried removing a memory stick, didn't seem to affect anything.

I've tried flashing the bios using USB method, tried 602 and 503, they both do the same thing.

I'm pretty sure the power supply is fine as the computer work great if it does start

Still happens even when I remove the harddrive, dvd drive

Tried disabling various options in BIOS ppl in other forums have suggested, but none have worked so far.


any suggestions ? or should i just return this motherboard, sigh

Thank you


October 29, 2007 7:34:17 PM


Check the asus forums. There are sticky threads on troubleshooting the no-post situation and overclocking failed message.
October 29, 2007 9:09:51 PM

i've tried, didn't see anything helpful in there other than the usual its your power supply, its your memory, responses.

I've tested the power supply, its in working order. Strange thing occurred when I was about to switch out my memory though. I turned on the computer with no memory sticks installed and it still had the same problem, no beeps, no video, but fans and lights on. Then when I reset it a few times it finally recognized I had no memory in there did the 1 long beep 2 quick beeps to signify no memory.
Related resources
November 22, 2007 7:22:55 PM

I'm experiencing exactly the same problem.

I've also browsed the Asus site but have been unable to locate anything relevant.

Can anyone point me in the right direction?

November 29, 2007 4:10:38 AM

Same problem here. I've got Crucial Ballistix 8000 RAM running at 1066.
Eventually, it completely died and could not be brought back from life. I RMA'd the MB (they told me to RMA the RAM, but I argued that 2 sticks going out seemed unusual). They cross-shipped me a board, which after some strangeness did boot. But, it too had the same occasional no POST. Today, I'm dead again. I'm thinking of RMA'ing the RAM just to remove that possibility. But, I think ASUS F'ed this board design somewhere...it might be a ASUS/CRUCIAL thing?
November 29, 2007 10:28:09 AM

Guys, I have had the exact same problem with my Asus Crosshair and my OCZ sli ready 1066 ram.
I have rma'd 2 boards; tried 100 ram combo settings and every concievable bios change or "solution" from all the forum sites i could find.
Have you guys run a memtest on each individual ram stick?
I have and mine are 100% no errors. I have even tried the most skeleton layout setup outside my case on some cardboard to eliminate all posibilities.
My conclusion is that a range of Asus chipsets have huge holes in the bios or the boards in general have some crazy big bugs that effect high end ram. This problem seems native to Asus boards ( Commando, Crosshair, Strikers,P5Ks) so Im hoping they put together an amazing bios for the next release. My problem i think is that my board tries to let the EPP on my OCZ ram take over and port the settings into the bios which breaks something. If i do amazingly post and quickly change my voltages, timings and fsb (even just stock and 800fsb ) it runs super stable in orthos,prime95,3dmark and superPI. Its when I cold boot that 9.5 times out of 10 now it just WONT F&$^T$&^CKING POST! Driving me mad.
As long as I just keep resetting and not shutting down ill be fine :( 
Cant live like this forever.
The problem is the consitency of the problem with this damn posting.
PS - apparently loads of people have success with removing any connection from the front usb cable to the mobo - i.e unplug this and try again. Something to do with a faulty connection.
Im not going Asus next time - thats for sure.

Let me know any updates.
December 1, 2007 4:34:54 PM

I have a similiar problem with a P5B/wifi , and while this is not a meaningful solution, just a possible bandaid, what i have done is let the system run with out posting for 5-10 minutes then restarting it, it usually posts after that. I also have replaced the PSU/ Ram etc...
December 1, 2007 5:47:36 PM

I'm having the exact same problem too with my p5k...
or rather, I was.
I unplugged and replugged everything, and now what happens is that unless I switch off at the mains, the fans all always spinning - even when the pc is supposedly 'shut down' and before i turn it on!

I don't think it's a RAM thing (mine is OCZ) and my pSU has been working fine for 2 years...

anyone got anything else on this?
December 1, 2007 10:57:07 PM

I had this problem with my P5B. There does not seem to be a fix. I have RMA'd one board and the new one they sent me doesn't post either. I gave up and bought a P5KC. Haven't had a post issue since.
December 2, 2007 3:17:35 AM

I'm having the exact same issue, I find turning it off at the powersupply allows an immediate start
not a great solution, hopefully asus will put out a new bios to fix this issue
December 4, 2007 2:13:43 AM

i don't know if its only Asus because i get the exact same problem on my GA-P35-DS3L board. i built this specially for overclocking, so this kinda irritates me having to stay at 1.8Ghz with a pentium 2160.
December 4, 2007 10:10:59 AM

hey guys. Same issue here.

I read on another forum to change all the overclocking features from "auto" to lower settings.

For me, changing the ram speed form "auto" to "ddr-833" (i think) seems to have cleared it up (most of the time)

The only time it gives me troubles is in the morning (after it's been sitting off overnight). Which is why I'm still looking for a fix.

Well, I hope that gets you guys closer.
December 5, 2007 7:54:30 PM

Hi, exactly the same behavior observed on my Asus P5K-E. My bios is the last available (0805), OC@3200 perfectly works when it posts.
It occurs randomly but a 'cold' case helps to reproduce the problem. Turning off/on manually the PSU is the only workaround I found.
December 5, 2007 8:26:31 PM

I had the exact same problem with my p5k and p5k deluxe.
I found a workaround and it has been fine since.
I did the memory swap.
Took out the dimms, which are pc8500 crucial ballistix and I put in 1 stick of pny ddr2 667 and the system posted first try.
Again, to be clear, no post means no beeps from the mobo, no bios at all, just fans and stuff, but no vid signal or otherwise signs of life.

Went into the bios and changed the auto detect settings to 1066 ddr frequency and shut down, then i added 1 stick on my ballistix and rebooted and it posted fine, then I shut down adn added my other 3 dimms and started up again and I havent had a problem.

I tried a new mobo, psu, vid card, etc.. and then I tried the memory swap and that was what did it.
Dont know what would cause the issues to begin after 6 months of use with no issues at all, but I was relieved to fix it.

i also found that leaving the dimms set to auto for all the cas latency settings and stuff was the only way the memory would remain stable.

I run the 1066 mem at 1000 , fsb 500 x 2, and my multiplier at 7, so my chip is slightly overclocked to 3.51 and running a 1:1 ratio with the mem and fsb, this has ben fastest and the most stable for me.
When i changed the latency settings I was 80% stable but would get bsod's once in a while, after going to default settings on those setttings I havent had a single bluescreen.

Lump

specs

Asus p5k
Intel duo core 2 extreme x6800 @ 3.51
crucial ballistix pc8500 4x1 gig @ 1000 mhz
Evga 8800gtx superclocked 621/2000
X-Fi extreme gamers card
7800 inspire 7.1 speaker system
Antec trio 650 psu
Plextar 16x dual layer dvd/rw
seagate 400 gig sata 7200.10
Zalman 9700 cpu cooler
Thermaltake Armor 8000bws full tower
dual boot Win xp pro/ Win Vista ultimate 64

http://service.futuremark.com/compare?3dm06=2135491 11936 3dmark 06
December 6, 2007 6:55:43 AM

kgiloo said:
Hi, exactly the same behavior observed on my Asus P5K-E. My bios is the last available (0805), OC@3200 perfectly works when it posts.
It occurs randomly but a 'cold' case helps to reproduce the problem. Turning off/on manually the PSU is the only workaround I found.


Yesterday I flashed the bios to 0806, no OC, and today it posts fine.
I should observe if it's stable in the day.
If yes, it might be an OC issue, maybe a more fine tuning is needed.

December 6, 2007 7:37:01 AM

relax ppl... its just some bios bug that everybody is having .. the boards work fine..

i fo example have a P5E mb.. with latest bios it randomly fails to post ... with the simptoms being just as many have described above.... then i tried with 1st bios and it boots fine every time ..(sadly the 1st bios has poor performance so im stuck with the latest :)  .. anyway i got used to it after a while...

December 6, 2007 9:05:09 AM

khaz said:
Check the asus forums. There are sticky threads on troubleshooting the no-post situation and overclocking failed message.


That is what I was going to say, the Asus P35 based mobo's have had a horrible track record from the beginning. Check out NewEgg's reviews on any of the Asus P35 base mobo's, you will see a LOT of unhappy people. The problem lies in the BIOS acting up and deciding when it wants to boot, like a ghost in the machine. My Asus P5B Deluxe WiFi AP mobo died an early death so I replaced it with the Asus P5E X38 which so far has a perfect track record for working out of the box.

Theres 38 reviews at excellent rating, 5 good and only one average. These P5E, P5E3, P5E3 Deluxe and P5E3 Deluxe WiFi are turning out to be very reliable mobo's so far. The P5E3 Deluxe WiFi has the ability to surf the web after 5 seconds of pushing the power button, you don't even have to launch the OS to browse the web. Sorry for the rambling my system has been down for two week. Asus has followed Gigabyte on having very good quality mobo components like Japanese made long life Conductive Polymer Capacitors, industry leading high quality power components.

I really do hope you find a fix for your BIOS reboots.
December 7, 2007 1:45:43 AM

insaneoctane said:
Same problem here. I've got Crucial Ballistix 8000 RAM running at 1066.
Eventually, it completely died and could not be brought back from life. I RMA'd the MB (they told me to RMA the RAM, but I argued that 2 sticks going out seemed unusual). They cross-shipped me a board, which after some strangeness did boot. But, it too had the same occasional no POST. Today, I'm dead again. I'm thinking of RMA'ing the RAM just to remove that possibility. But, I think ASUS F'ed this board design somewhere...it might be a ASUS/CRUCIAL thing?


Well. I did RMA my RAM. I temporarily used some Kingston to hold me over. It did it too. Got my new Ballistix tracer RAM...it does it too. This is F*ing ridiculous! ASUS should fix this before they have a FLOOD of RMAs!!!
December 7, 2007 5:12:16 AM

If you can still return your mobo then I'd do that and get one of those P5E mainboards, their track record is excellent!
December 7, 2007 12:44:07 PM

I have the Asus P5k-E and having the same issue! But guess what? Last night (Dec 6, 2007) I downloaded from Asus website Bios firmware ver 901 11/14/2007 that said it fixed something to do with S3. I did not understand at the time. Anyway this morning I noticed that it is gone from their website. I have not rebooted my PC since to see if it fixed anything. Just thought I would drop a note. The board seems very stable otherwise.
December 7, 2007 1:42:14 PM

Asus P5K-E WIFI
C2D 6550 @ 2.8 (Running 1:1 with RAM)
Crucial Ballistix 2*1GB DDR2-800 PC2-6400
Geforce 8800 GT
Corsair HX620

I'll have to verify which BIOS version I'm using because I have absolutely no problem with this board. First thing I did when everything was assemble was to update the BIOS. After that I never encountered anyway problem. I've set all my memory timing and voltage manually and it didn't caused any problem. I'll see if I can produce the same problem as you guys because it really sucks that you're stuck with these problem on such a good board (except the BIOS I guess ;) )
December 12, 2007 12:09:09 AM

Just a note to everyone. New board with BIOS 703 pre-installed. To everyone running Quad core don't update the BIOS! This new board boots every time just fine. The problem was on the last board that I updated to BIOS 0806 first thing. It would randomly post. Then I put BIOS 0901 and it was dead on my second reboot.
December 12, 2007 2:40:13 AM

pcunite said:
Just a note to everyone. New board with BIOS 703 pre-installed. To everyone running Quad core don't update the BIOS! This new board boots every time just fine. The problem was on the last board that I updated to BIOS 0806 first thing. It would randomly post. Then I put BIOS 0901 and it was dead on my second reboot.


Theres a simular problem with the Asus P5E mobo's with the newer bios release thay make your once stable Ram unstable after the update. Why Asus doesn't actually test them before.... Motherboard makers like Asus and Gigabyte need to make a removable Bios chip that you just plug in like a CPU, this way you could send you Bios into Asus to have them update it for you so if anything go's wrong your not left with a mobo that doesn't have warranty that doesn't cover Bios failed updates. I need to patent that idea.
December 12, 2007 2:45:35 AM

I never update my Bios version without a damn good reason, I wish others would adopt this. I think people are expecting great leaps of performance doing Bios updates which does happen but not worth the trouble that comes with it.
December 14, 2007 12:38:27 PM

Could anyone post the 0703...?

The following is the answer of Asus Support (haven't tryed so far)
Dear Valued Customer,

1
Please clear CMOS by:

<1> Cut the power supply for whole system and open your case;
<2> Take out the Cmos battery from the battery socket;
<3> Install your battery with "reverse side" that means turn the battery 180 degree and put into battery socket;
<4> Hold about 30 seconds, then take out the battery and install it normally;
<5> Plug the power cord and Power on.

2
Please try to add more voltage to RAM according to the claimed voltage from the RAM manufacturer, but please take care when you do this, because this requires higher performance of other components of your PC, and may cause other problems if not correctly operated.

3
Please change another PSU for a try, as this problem may caused by insufficient PSU.

Sincerely,

Cooper
ASUS Customer Service Center (Shanghai , China)

December 15, 2007 6:00:08 PM

Workaround do not help.
Downgrade my bios to 0602 will enable to post every time.
Conclusion:
Newer bios than version 0602 are buggy... I guess.
December 16, 2007 12:54:18 PM

my 8800gt does this, ful blast, nothing on screen. updated bios and eveything

i have fixed this by changing the ram speed in the bios to 533 and then restarting, it works now and actually lets me change whatever i want without restarting the pc and putting the fan on full and remaning that way. hope it helps.
January 3, 2008 10:13:13 AM

I have exactly the same problem.
I have a P5K bios version 0603 with a E6750 CPU. PC only turns on when he wants and don't consider the FSB change.
Has anyone figured out any solution for this problem?
January 3, 2008 10:38:19 AM

lmmonteiro said:
I have exactly the same problem.
I have a P5K bios version 0603 with a E6750 CPU. PC only turns on when he wants and don't consider the FSB change.
Has anyone figured out any solution for this problem?


Yea, buy a new mobo. The P5K-Deluxe/Premium have been out for sometime now and Asus hasn't had a fix yet, maybe there isn't and Asus just doesn't want you to know. Thats why everyone buys the P5K-E because the E version doesn't have the same defect that the P5K-Deluxe/Premium does.

Sorry for the bad news.
January 4, 2008 10:19:27 PM

I am running the P5E with the 502 BIOS update and have one interesting, reproduceable issue. I have the HP Photosmart 7850 which houses a USB Media Card reader. It is connected directly to one of the onboard USB ports. If I have this device plugged in, power up, it will result in a black screen condition and the box will never post. Unplug the 7850, power down, and bingo I'm back up and running.

The 501 BIOS had me hosed up for quite some time and I popped 502 on when it released. Pretty stable now other than the issue with the 7850.

Anyone have this printer or has seen a similar issue with other USB hubs? I have one of those Kensington USB hubs and find that there are no issues with it being connected.
January 8, 2008 7:34:15 PM

I have exact same problems as the original post. After looking on another forum i have disabled "Transaction Booster" in the bios. So far so good. I will let you all know how it goes.
January 10, 2008 9:03:39 AM

Nope sorry i'm still geting the error.
January 10, 2008 11:58:16 AM

Have you ever tried to switch on your screen before you power on?
Any better result?
January 10, 2008 12:48:08 PM

I have the same problem as the op with my P5W DH (which has been running stable with 4x1GB DDR2 800 Crucial Ballistix) for about 1 year (I didn't install any bios updates in the past year) - I noticed that the problem started when the ambient temperature was low (i.e.. this winter) because the heater was off in the room during the night. (if I kept my Vista PC in sleep mode, I had no problem - only on cold start or reboot when the PC had not been running for a while). My memory had been tested with memtest overnight about 5 months ago - no errors.
After checking everything else, I took out two of the 1GB sticks (1 channel) and PC had no problems. If I swapped the sticks, PC would not post - so obviously, it was something to do with the RAM. RMA'd the two sticks and waiting on the replacements.
In the meanwhile, I lowered the voltage for the memory from 2.2 to 1.9 and it is still running fine at PC6400.
Try swapping your memory - it might help.
January 27, 2008 6:52:44 AM

I seem to have tried everything but I'm still getting this problem. Any update anyone?
a b Ĉ ASUS
a b V Motherboard
January 27, 2008 8:22:12 AM

Someone please try this:

Enter the bios and set the ram to sync with the fsb (FSB1066+DDR533, FSB1333+DDR667), manually set the ram timings to the rated spec or worse, set the ram to 1.9v or more depending on model and tell me how that goes - it seems all newer ASUS motherboards try to use the ram at lower timings which cause all sorts of issues - mine would use my Corsair PC6400 C5's at CL4-4-4-12, which would work but would require more v's to run untill i found out how it was running, after manually setting the timings and vcore all was well.

Use CPU-Z to find out the SPD and how its actually running.
January 30, 2008 6:06:37 AM

An epilogue to my problem: I persisted with the reseting the computer, I even purchased new & different memory. But it eventually refused to boot altogether.

I RMA'd the board (in mid-December 07), but sadly have yet to receive a replacement (late-January 08). This delay is like it's haunting me from the grave!
Will not be bothering with a replacement P5K-E wifi. Will choose a different P35 board.
January 30, 2008 6:13:51 PM

I have the same problem

When I start (not restart, if restart the system boot just fine) nothing happend except the PSU sound and leds on mainboard light, Black monitor, nothin more happens.

I press the restart button and then, after a few presses the system start with Overclock Failed, but NO OC was made."

If I cut off the main switch power, it boots in an identical way.

If I move memory stick from bank B1 to B2 it boot fine, ...
but next cold boot same problem.

My config is:
P5K3 Deluxe
RAM: 1x1024 DDR3 Kinston @1066
GPU: Asus 8600GT Silent @256 MB DDR3
HDD: 1x320 WD SATAII
CD\DVR\RW: 1 x CD\DVD\RW
PSU Antec NeoPower 550W

I've found many many post on asus' page but no solution

Any suggestions to tray?
January 30, 2008 6:37:33 PM


This is a long shot, but I had the exact same problem as the OP in a P965 board. After lots of research and trial-and-error, I discovered that disabling the JMicron controller on the board made the problem go away permanently. I did have to switch to a SATA DVD burner so I could leave the JMicron controller disabled.

Good luck!
February 1, 2008 4:50:06 PM

The nightmare continues...

I can't disable the Jmicron controller because I need it to run my old IDE HDD

Yesterday i did a clear CMOS

Today in a cold start the pc didn' boot, any beep.

To Boot I MUST unplug the power cord, wait ten seconds, plug it again and a I heard a short beep, it boots without run BIOS setup and then works fine.

I'm waiting still an answer from Asus Technic support team.

I'll tray set a little more voltage for ram as Dai says.

I'll tell you.
February 7, 2008 12:56:33 PM

just built a system on a p5k-e board

e8400, 8800gtx, 2x2gb g.skill pc6400 (4-4-4-12), 2 seagate hdd's in raid 0, and a corsair 620watt modular PSU.

had to flash bios to version 906 to get it to recognise the new cpu, booted fine, installed vista 64bit as a test, shut her down for the night...

came back to finish off installing drivers and setting the OS up and im experiencing the same issues. board will not post, all fans on, graphics card fan starts at max speed, no image on display.

if i get chance later ill try flipping the battery, and unplugging the front panel.

surly this issue cant be across all p5** boards ? and just a batch of them ?
February 8, 2008 7:33:30 AM

Nooo Im awaiting a p5k-e wifi board as I type this its on a purolator plane :( 

Now you guys got me really worried as its gonna be the first PC I build !!! Please come up with a solution for this !

e8400
P5k-e Wifi
4gb Crucial Ballistix Tracer 1066mhz
Palit GT8800


!!!! :( 
February 14, 2008 6:51:51 PM

Hi, having exact same issue with a P5K Deluxe / E6750 / 2x OCZ 1066 1Gb sticks of RAM. Been running fine for 6 months or so and then wouldn't POST today. No beeps or VGA response.

Tried switching video cards but no joy. Will try memory later.

Had to upgrade BIOS initially for it to recognise the CPU but can't remember to what version.

Anyone have any idea's on how to recover? Tried the usual pulling power, removing CMOS battery and moving jumper to clear the CMOS with no joy.

Any suggestions much appreciated?
February 18, 2008 6:37:21 AM

Well I received my stuff last week, built the computer, upgraded bios to latest 1004 (I think) everything worked fine .... after 1 week, baaaam blue screen, sometime it wouldnt reboot, all fans where running but screen would stay black (but lighted) .... had to power down, wait 5 minute, then power back up ...

I kept my bios setting as they where (Jmicron disabled and ram at 1066 mhz) till yesterday when I decided to restore to default setting, since then (been 36hrs) no blue screen, and ive played a fair bit of TF2 .... Well lets jsut hope having my ram at 800mhz solves the problem (but I highly doubt it).

BTW, Blue screen post was usually PFN_list_Corrupt (or somethign like it) had 1 IRQ error too. About 6 blue screen over all in the course of a few hours.
February 19, 2008 12:24:43 AM

It looks like I'm not the only one having problems with "ASUS".

I purchased a P5B Motherboard and had problems with it recovering/posting from a failed overclocking from the start.

After "Numberous" off/on it would sometimes start and work fine, the last overclocking 266X6 up to 267X6, it never did recover, no beeps, "Nothing".

I've RMA it back to Asus last week, sure hope it doesn't take a "Month" to hear or get anything back from them. :fou:  :fou: 

E6300 CPU
2 gigs pc800 Platinum memory
Raptor Hdrive
Gforce vid card.
550 Power supply

February 20, 2008 12:14:15 AM

systemlord said:
Yea, buy a new mobo. The P5K-Deluxe/Premium have been out for sometime now and Asus hasn't had a fix yet, maybe there isn't and Asus just doesn't want you to know. Thats why everyone buys the P5K-E because the E version doesn't have the same defect that the P5K-Deluxe/Premium does.

Sorry for the bad news.


Many posters here are complaining about P5K-E.
April 18, 2008 9:04:17 PM

I just wanted to add my voice ... Indentical situation here. Tried all the posted solutions all to no avail. Thanks all posters, though.

There was a time long ago when AsusTek was THE motherboard to own. Now its RMA time after wasting so much time on this, including half a day dismantling and cleaning my PC as a last resort. No change, of course.

Antec Gamers Case/PK5 De Luxe/WiFi/E6850@3.41GHz/2Gb Crucial Ballistix 1066/BFG GeForce 8800 GT OC 512Mb/Seagate 400Gb SATA II/Maxtor IDE 250Gb

April 19, 2008 6:26:59 PM

Likewise... been bugging me for a while but decided i should really sort it out. still no solution though?!
Anyone had any luck with the newest bios?
@garethw - agreed, I won't be getting another asus board again :( 
April 28, 2008 12:03:14 PM

I had exactly the same problem on the asus P5KE-wifi ... tried bios updates and am now running the latest bios. I was running 2x 1GB corsair 800mhz RAM.. removed one stick of ram and the system has run perfectly ever since.
April 29, 2008 10:23:53 AM

Wow ... interesting. I have a similar problem with Asus A8N SLi. Recently I installed a Asus 8800GT and randomly, the PC just won't boot. OK, all I hear is 5 beeps and everything went dead (HDD keeps spinning I think). I have to switch it off and on and off and on till it boots normally.

And I can't replicate the problem whenever I want. After about 20 times of on and off, I would usually open up the case and give the video card a few good push. Don't know why but it works for me. Must be some bizzare connection.

All these RAM switching that people have suggested, could be just as simple as giving the mobo some physically push (like I did).

How bizarre! Now I wonder if I shall buy another Asus mobo.
!