new build help

K

kevinf

Limp Gawd
Joined
Feb 21, 2004
Messages
375
i just got the asus a8n-sli premium today. my computer is in my sig. i put everything in and it all worked. but when i put it back in the case, the computer worked but no image on monitor. i thought it was shorting out some how so i take it out and it still didn't work. i reset the cmos and still doesn't work. is this the motherboard problem or cpu. how do i know that its the motherboard not the cpu. when the motherboard is connected to the case it doesn't even give beeps. so would that mean that the motherboard is not working and causing it to not beep. i think that esd might have killed it. because on the first half i was wearing the band and set out of the case and it work but later on i decided to take it off. i just need to know if it is the cpu or the motherboard. i have tested other components in another machine and they still work

my specs are

athlon 64 3000+ venice
Asus A8N-Sli premium
512 mb of pc2700 (256 during test)
Radeon 9250 pci video card
 
It's really hard to tell without having another proc or motherboard on hand. If everything else works in another rig, you've narrowed it down to proc or motherboard. I'd call around and see if a local Mom and Pop shop could do a POST test on the CPU for you.
 
wouldn't it be the motherboard because it doesn't even beep when i attach it to the case
 
Humm, so when you took it out it was back down to bare essentials cpu, psu and you heard no happy beeping. :(

There's no way to do the swap with another cpu, a friends?

Edit: see the guys have already addressed that. Sorry.
 
yup no beeps, and i don't have any friends with an athlon 64 cpu or motherboard
 
Kevin, you don't even see the led on the board indicating power or the cpu fan spin?
 
Are you still trying it with the original 256mg stick, I'm asking so that perhaps swap that with the other.

Also I know this might be obvious, but did you use washers?
 
right now it is on a card board box but yea i did use washers. i also tried other sticks too. i know that all of the sticks work though
 
Humm, so on a box with just the cpu and ram and nothing.

On a box with just the cpu and no ram and nothing.

Speaker working so you can hear beeps.

It started once, so the cpu is properly seated, lever down,

HSF aok.

Maybe the shop for the post test as already suggested.

Left the cmos battery out for 30mins or more.
 
what do you mean by cpu and no ram. what would be the result of that
 
i have tried to reset the cmos before but that was only for 5-10 secs like the manual sugggests. would it be better to do it longer. would it hurt to do it overnight.
 
kevinf said:
what do you mean by cpu and no ram. what would be the result of that
Click to expand...
Your 3 main componets, mobo, psu, cpu, should give continuous beeps if working when you plug it in. If working, the beeps are basically screams for the missing componets.

You suspect the mobo here that so far is doing nothing, so test to bare minimum with just the 3.

You already disconnected the drives from the power supply and the motherboard, removed all the cards so forth. Since it didn't start with the ram remove that too.

You may also try to disconnect the power-on header from the mobo and short the pins with a screwdriver. See if you can jump start that.

You checked that the HS/F is plugged into cpu fan header, some boards will halt immediately if not.

The PSU may be suspect also. Possible. You didn't mention what you had for a unit.

Yeah you can leave a cmos battery out as long as whatever, it's fine.

Let us know.

gl :)
 
my power supply is an xclio 450 watt. i know that it works too i have tested it another system
 
kevinf said:
wouldn't it be the motherboard because it doesn't even beep when i attach it to the case
Click to expand...

Yes and no. If you have a faulty CPU the motherboard will fail during the POST test long before any beep codes would normally be heard.

If you've removed the board from the case and have it on a box, only have the CPU installed, connect up power and the speaker and power it up with no beeps, your only recourse is to have the CPU/mobo POST tested at a local store. You can't do anything further without having either a known good CPU (to test your mobo) or motherboard (to test your CPU).

This may sound like a redundant question but I didn't see a definitive answer. Did you move the CMOS jumper to clear? Removing the battery won't always clear the CMOS, 9/10 times you have to move the jumper.
 
ya i changed the jumper and then removed the battery, would compusa offer free testing. and i just noticed htat the motherbaord gets hot even when it is not turned on but plugged in. especialy on the northbridge
 
kevinf said:
ya i changed the jumper and then removed the battery, would compusa offer free testing. and i just noticed htat the motherbaord gets hot even when it is not turned on but plugged in. especialy on the northbridge
Click to expand...

Bad motherboard. The Northbridge should NEVER get hot unless the system is up and running and under load. There's a short within the circuitry of the motherboard that is most likely a manufacturing defect. RMA time.
 
but the motherboard did work before

dang i wish that i looked at this post earlier because i just spent $69 at pcclub telling them to test my cpu. i am probably just going to get the a8n-e because i don't really have a need for sli
 
I had the exact same problem this weekend and just now figured out I had a bad stick of RAM. I suppose you could always pull all your RAM then install one at a time until you find the culprit. Good luck man. :cool:
 
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