Lyle_Vertigo

I installed a new motherboard the other day. I made sure it was compatable with all my hardware, and installed all the hardware and connector pins according to the motherboard diagram.

Some basic information, I'll add more later.

AMD Athlon 64X2 2.2Gig X2
Biostar Motherboard T-Series
4-1 gig DDR 333Mhz (has jumper set to DDR)
Geforce 7950 512MB GPU X2 (1Gig) (chip set to Normal)
Killernic Network Card
Seagate 120Gig Harddrive (primary), Seagate 400Gig Harddrive (secondary)
Phantom 500Watt PSU

At first it would flash the blue screen at me when I tried to install fresh copy of windows (saying somthing to the effect that it tried to access a thread it did not own). I took everything apart and put it back together and the installation went through. Then another problem occured:

If I turn it off and try to start it back up again the fans and lights will turn on but not the cpu/harddrives. When I turn off the PSU and try turning on the front power button again it will momentarly flash on again but turn off (showing residual power). When I turn on the PSU it will turn the computer back on without me ever touching the power button again. Not all the time, but most of the time. Basically, I have to toggle between the PSU switch and front power switch until the POST is able to start and then windows will run normally (until I turn it off or restart, in which I have to start over).

Has anyone seen this before? I think the PSU has gone bad but when the POST starts it shows all voltage normal (when its able to come up). It could be the system trying to draw too much power but my PSU is a phantom 500 (should be enough right?).

Anyway, any help is much appriciated!

dai

you look underpowered,put your specs into here
http://www.extreme.outervision.com/p...ulatorlite.jsp
based on a quality psu and add 30% to the end result
thats the mimimum you need
check you have the wires from the front on and reset buttons,on the correct pins
disconnect the wires and touch the 2 pins with a small screwdriver for a fraction of a second and see if it boots normally

Lyle_Vertigo

with 30% to it is 513. It is close.

I'm going to pull the front panel connections out and manually start it and will post those results soon.

Lyle_Vertigo

When I pulled all the front pannel connections and turned it off and then manually started it from motherboard it started right up.

When I tried to restart it just turned off again, then the motherboard method was no longer good, having to toggle that and PSU switch just as I did with the front panel switch.

Also, I will need to apply a fresh application of temp grease to the cpu as the current app is hard and dusty. The Temp. has been running at a steady 42C so it isn't an immediate problem.

I wish I had a multimeter so that I can test out the PSU directly but I haven't owned one in ages (and the cheap ones sold at radioshack is well, crap).

Is there a really good free diagnostics program out there that will not only show current comp status but voltages as well? I had one but forgot the name and didn't back up

On a side note, I noticed that my Norton 360 came up this time with an "x", 16 errors and said it had to be uninstalled. Lol, off-topic but this is a fresh copy of windows.

dai

check the bios for temps and voltages
http://www.cpuid.com/pcwizard.php
http://www.almico.com/speedfan.php
http://www.softpedia.com/progDownloa...oad-29890.html

Lyle_Vertigo

Those are nice, I like the Wizard for the detail.

They all say the following for Voltages:
VCoreA(CPU): 1.34V
VCoreB(AUX): 1.52V
+3.3V: 3.25V
+5V: 4.92V
+12V: 11.80V
+5VSB: 5.00V
+VBAT: 3.04V

For the Temps:

CPU1: 42C
CPU2: 45C
Sys: 127C
Aux: 127C
HD1: 37C
HD2: 38C
GPU: 58C

dai

the 12v and 5v line looks down slightly,to be sure you need to check with a multimeter or swap in a larger psu,if you can borrow one
set it up out of the case with just
video
ram
cpu
speaker
and start it by touching the pins to see if you get post

Lyle_Vertigo

I tested it and the +12V is running at 11.25V......that's not good.

dai

11.4 is the min spec but you usually can expect problems before it gets that low
i was just looking at this for someone else
http://www.newegg.com/Product/Produc...82E16817371002
see if you can borrow something similar to try in it
if yours is under warranty see if you can get an rma on it

Lyle_Vertigo

Well I swapped out the old Power Supply with a Xfinity 800 watt brand new.

Found out that the PSU wasn't the problem as the conditions didn't change.


However, performance has increased slightly. So it wasn't a waste.

The only other thing it can possibly be is the motherboard. Which sucks for me cause that is a brand new motherboard and I hastely discarded the box when I got it. It is a AMD 64 Dual Core Processor on a 939 socket so my options for a different company is very limited. (this one is Biostar).

Any advice is highly appriciated.

dai

i have been using asus m/b's for the last few years with no problems with them
if you have a store that builds systems near you you maybe able to get a box from them