Epox 8k71 MOBO, T-bird 1.2GHz,enight case, 256 crucial DDR ram, Radeon LE,
Globalwin-FOP-32 HSandFan
Ok. I will make this very detailed so bare with me. I will even list my jumper settings at the bottom.
I started completly over yet again.
I pulled the motherboard out and removed the cpu. All pins look straight and I dont see any damage, No chips no scratches. I now have the MOBO sitting on a box to make sure nothing is shorting. I checked cpu fan on this old system and its good. I reinstalled the cpu & fan, power switch, and power supply (300w)connecter (there is no on/off switch on the back of the power supply). I hit the power on and nothing. The only thing I notice is the the fan moves about a 1/16th of an inch.
I then reinstalled the Memory into M1 slot, still nothing. I installed memory in M2 slot, still nothing. I then added the Video card, still nothing. I removed the video card and tried my old voodoo3 3000, still nothing. I installed the new video card into my old system and it works, matter of fact its in this old sytem now while i'm making this post. I even shorted the power on pins with a jumper to make sure the switch isnt bad. The last thing I did was check the power supply again by jumpering green and grey and powered up. Case fans came on and all drives had power, so its not the power supply (plus i tried the old power supply)
So right now I have the MOBO, CPU&fan, Memory in M1 slot, know working video card, power supply and power switch connected sitting on a box. Nothing happens but the fans move a hair when I first power up, If I keep hitting power the fans no longer move anymore.

Now for my jumpers etc.
1.cpu is set for x10, its 1.2 ghz.I also tried auto.
2.Cmos is jumpered to normal, not clear.
I have cleared cmos.
3.cpu Vcore adjust is jumpered to +0.V
(default). I also tried it at +.1V
4.DDR adjust is set to +0.1V (default)
5. Cpu clock speed jumpered to 2-3 set or
266MHz. I also tried 1-2 for 200MHz
6. power loss recover is set to disabled
(default)
7.keyboard power on is disabled, I tried
enabling it but it still wouldnt power up
using the keyboard as instructed.

I have played with all the jumpers and nothing changes, Its like the MOBO is just dead. Its all still under warranty, but tyring to determine which part is bad if any. I feel very strongly that the MOBO is bad.
Thanks to all that took the time to read this and any suggestions are welcomed.
Thanks, Jody

Not trying to pass the buck, but, to me it seems like you've more than done your fair share of trying to fix it yourself. If it were me, I'd call whomever, and say you have 3 days to get someone here and fix this themselves or it's going back. Period. No exceptions. That's what warranties are for. Take advantage of them. Send it back, if it is that big of a prob when it's under warranty....Good luck.

Kaos, That would be great but just one problem. I'm building it myself from scratch. I'm in Georgia and I purchased most the parts from newegg in Cali. I cant just return every component. I can however return the bad component for replacement. The problem is I dont know which part is bad.
I think its the MOBO, but not sure. I spoke with lots of people and some say they think its the either the MOBO, Memory, or CPU.
I was told the a the cpu fan should run with just the cpu installed,no memory or video card is that true? Cause if so that would take the memory out of the picture and narrow it down to the MOBO or CPU.

ok I'm an idiot, didn't understand that, even as well as you explained it all. OK, sorry man, my bad. Actually, I came across this problem today w/ a PC at work. I didn't get a chance to troubleshoot anything because it was late, but, to tell you the truth, I honestly thought that I would be able to order another PS and everything would be OK. So, I admit, I'm stumped, and am at the mercy of whoever answers you I think.

I was with you untill you mentioned jumping the green and grey wires and then it powerd up. I must be missing something here. And yea I believe it is true that the CPU fan(s) should power up without RAM. In fact I believe that they should power up even without the cpu! Also your power supply fan should also turn no matter what. Please advise as to where I misunderstand you.

Steve48. Sorry I should have made it more clear. This is the link that will explain how I tested the power supply. http://www.sysopt.com/articles/troubleshoot/index.html
Keep in mind that I tryed another power supply. Although it was only a 250watt supply it still should of power up cpu fan with just the cpu installed.

OK.......if I read your link right.....your refering to the check where you
take a short piece of wire and place it in the pins of the PS connector and the fan should turn. Ok if thats what you are talking about then I would agree with you that it is indeed a bad mobo. HOWEVER.....I have seen bad jumpers before, so if you have spare jumpers, try replacing some or all of them. Also look to make sure that there is not a jumper for the type of PS that you are using. And finally......AMD does reccomend AMD power supplies for some of their CPU's. I dont know if that will cause a problem or not if you dont have the AMD reccomended supply, but it may be worth looking into!

Ok, My power supply is amd approved 300 watt. I just put it in this old pc and it works just find (I keep triple checking). The MOBO manual says that LED1 on the MOBO should be on while the power is applied regardless of the postition of the on/off switch. It said if its off plug in the atx power supply. It definitely plugged in! The LED1 never comes on at any point.
so you said the cpu fan should should spin with nothing attached at all besides power to the MOBO. I will try that right now. If that dont work I will call newegg monday and get a replacement MOBO and CPU. I think its a bad MOBO but I will go ahead and get a replacent CPU while i'm at it.

I've had this problem before. Damn if I can remember how I got past it. If memory serves me correct, the fan connector was wired backwards. Try removing the fan connector from the fan header on the motherboard and attempt a boot. I'm not sure if this is the problem. Trying to remember how I fixed it. But when you mentioned the fans turning just a hair and stopping, then not turning anymore after reapplying power...damn it. I just can't remember how I fixed it. Will get back to you though.

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BiosCentral (http://www.bioscentral.com)
BiosCentral Forums (http://www.bioscentral.com/cgi-bin/UltraBoard/UltraBoard.cgi)

this has nothing to do w/problem this is reup for kaos if this unit was under warrenty as soon as he went inside the box and started working on it your warrenty goes out the door had that problem? http://www.PCGuide.com/ubb/biggrin.gif

by: japerritt

" 3. cpu Vcore adjust is jumpered to +0.V
(default). I also tried it at +.1V"

this could be your problem.

try setting range from 1.6 to 1.85, 1.6 being the minimum.


http://www.PCGuide.com/ubb/wink.gif


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sea1_69@hotmail.com

homepage (http://www.seanweb1.homestead.com/3.html)



[This message has been edited by sea69 (edited 08-18-2001).]

O.K. here's my .02 pesos worth. If you don't have a PSU on/off switch on the back of your case then you are using an AT style PSU. The Mboard will have to be jumpered accordingly. Look for a JP1. The Mboards that have either/or ATX and AT connections can be confusing. A CPU fan that will try to energize but not spin will have to get it's power somewhere other that the fan header. (Found out the hard way with the Black Label Fan) As some CPU fans draw too much current for the header to handle. This can also cause a fail to boot situation. Lastly.... The Core Voltage needs to be 1.75V for that chip to boot up. If you have the multiplier set at 10x and the 2-3 jumper set at 266 then you are actually trying to get this chip to boot at 1330MHz. I don't know if you have a "B" or "C" Model. "C" being the 266. If so then try a multiplier of 9x. Luck.

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......Indecision may or may not be my problem......
...... Kickin' A Rock....

[This message has been edited by ranchdog (edited 08-18-2001).]

Hi;

I have a Highpower 300 watt atx ps in one of my systems. It does not have a on/off switch on the back of the ps. Before you return that motherboard, make sure that the cable from the power supply to the motherboard is connected securely in the motherboard atx connector. Also that the power switch connector is attached.

The Epox site states;

"Check your power supply. Does it power on? If not you may have a short. Is the power supply correctly set to the right VOLTAGE INPUT. This is usually found on the back of the power supply. It can be set by a small switch. Users with ATX power supplies and ATX motherboards have an additional wire to hook up. The wire from the front power switch MUST be connected to the motherboard in the correct location, or your computer will not power up. This connector is labeled something similar to Power On/Off."
http://www.epox.com/html/english/support/motherboard/Get.asp?Article=1051

Otherwise, darned if I know!

[This message has been edited by danleff (edited 08-18-2001).]

[This message has been edited by danleff (edited 08-18-2001).]

After futher attempts today I have decided to get a replacement cpu and MOBO. Its all under warranty and I cant waste much more time or it will expire. I will explain all that I tryed today.
I placed the mobo on a phone book to ensure it wasnt shorting.
I was told by another owner of a epox 8K7A the cpu fan would/should atleast power on with NOTHING more than the power supply connected and the on/off switch. I tryed this and nothing the first few times. I then removed the cmos battery for a while and reninstalled it. The mobo powered up. I said oh my GOD, this is the 1st time its powered up since the 1st time i applied power! I let it stay powered up for a about 10 min then turned the power off by pressing the on/off button for 4 seconds. I then tried to power up once more, and nothing at all happened again. I metered the cmos battery and it had 3v. I reinstalled the battery and it powered up agian(about 10 min had passed). Powered off agian and tryed to power up again and nothing. I pulled the battery out of this old system and tried it and nothing. It seems like if I leave the battery out for 10 to 15 mins it powers up some times, but not all the time.

I continued this about 10 to 15 times and when it did power up it would never power up right after the power was either turned off or power unplugged. The few times it did power up I had left the battery out for a while, but again sometimes it wouldnt power up at all even if I left it out for an hour. So its intermitent, Make no sense.

I know for a fact the power supply connecter is connected properly (atleast as flush as it can possibly be). I reseated it over 20 times the past 2 days. I know the jumpers are correct, I tried all things mentioned in this post before you guys even suggested them. I then tried it all agian after reading your post just to triple check. So, YES I did try every single thing mentioned in this post.
The power supply is a atx power supply and there is no jumper to define which kind of power supply. The cmos jumper is to normal not to clear, although I tried clearing it approx 15 to 20 times. The soft on using the keyboard is disabled, although I tyied enabling and using the keyboard to power up as instructed. That didnt work either.
Just to add this, I left the battery out for a while and added cpu, memory, video card, monitor , Keyboard and mouse. The system never powered on no matter how long I left the battery out (i tryed approx 10 times over a period of 4 hours).
I have since boxed the MOBO & cpu up and have gotten a RMA number. If someone feels the have the answer by all means Give it to me. I have no problems unpacking it all. I cant send it off till monday anyways.

I hope this all made since as I am very tired. I will check comments or suggestions.
Thanks for all your advise and time, Jody




[This message has been edited by japerritt (edited 08-18-2001).]

Update.
I am one happy MOFO!
I just got the replacement MOBO and CPU. Everything went very smooth.I'm on it right now! I ran into not one problem so far (oops, I better knock on wood). No power up problems with the remplacements.
I am very shocked at how good this built in audio is. It sounds better than my old SB live value to me. I will overclock my video card and do some tweaking soon. I want to give it a few weeks to make sure everything is stable.
I would also like to add Newegg really did a great job considering. I was really stressed thinking I might get ripped off somehow. I fed-exed bad parts to them MON they received them TUE at 10 am. Replacement parts where here today(wed)at 10am.
Thanks to everyone that helped!
Jody

Jody... All is well that ends well. Glad to hear it. http://www.PCGuide.com/ubb/wink.gif

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......Indecision may or may not be my problem......
...... Kickin' A Rock....