Resolved Intermittent Crashing - Power Light Still On

My windows 7 computer has been crashing all day. It's only just started doing this today. It's a hardware problem, actually, because it's been crashing off of an Ubuntu live-usb, but I post here because I'm using Windows diagnostic tools (a free Everest trial, specifically) and because I've heard good things about this forum.

Here is what happens. When I'm browsing the internet, gaming, or whatever, my computers screen will suddenly go blank. The monitor detects no signal, and my keyboard and mouse cease to work (caps lock doesn't make the keyboard light up, and the LED's on my mouse go out.) However, the speaker lights and power light are still on. Holding down the power button does NOT turn the computer off - I have to physically take out the power cord.

It seems like it might be a heat related issue, because if I let it sit it'll go a while without crashing but if I boot it right after a crash it'll be much more likely to crash again. My guess is that it's somewhere in the realm of heat, power supply, or motherboard issues. I'd like the experts to take a look at my Everest logs and supply an educated guess.



Sensor Properties
Sensor Type ITE IT8718F (ISA E80h)
GPU Sensor Type Diode (ATI-Diode)
Chassis Intrusion Detected Yes

Temperatures
Motherboard 43 °C (109 °F)
CPU 50 °C (122 °F)
CPU #1 / Core #1 39 °C (102 °F)
CPU #1 / Core #2 39 °C (102 °F)
CPU #1 / Core #3 39 °C (102 °F)
CPU #1 / Core #4 39 °C (102 °F)
Aux 41 °C (106 °F)
GPU2: GPU Diode (DispIO) 62 °C (144 °F)
GPU2: GPU Diode (MemIO) 64 °C (147 °F)
Hitachi HDT721064SLA360 [ TRIAL VERSION ]
WDC WD1001FALS-00E8B0 [ TRIAL VERSION ]

Cooling Fans
CPU 1531 RPM
Chassis 888 RPM
GPU1 0%
GPU2 29%

Voltage Values
CPU Core 1.07 V
+2.5 V 1.15 V
+3.3 V 3.02 V
+5 V 5.05 V
+12 V [ TRIAL VERSION ]
+5 V Standby 5.08 V
VBAT Battery 3.34 V
Debug Info F 01B8 02EB FFFF 0000 0000
Debug Info T 43 41 51
Debug Info V 44 48 BD BC BE D8 08 (7F)

------[ Motherboard Info ]------

Motherboard ID : 64-0100-000001-00101111-031209-ATHLON64$924A1P02_RS780 B4 031209
Motherboard Model : Acer RS780HVF
Motherboard Chipset : AMD 780G, AMD K10

DMI MB Manufacturer : Acer
DMI MB Product : RS780HVF
DMI MB Version :
DMI MB Serial :
DMI SYS Manufacturer: Acer
DMI SYS Product : Aspire M3202
DMI SYS Version :
DMI SYS Serial : PTSC70X0029190B2382704
DMI BIOS Version : R01-B4

ITE 87xx HWMonitor Port = 0E80h
ITE 87xx Device ID = 8718h
ITE 87xx Version = 05h

Winbond SuperIO HWMonitor Port = 0000h
Winbond SuperIO Device ID = FFFFh

Fintek SuperIO HWMonitor Port = 0000h
Fintek SuperIO Device ID = 0000h

LPC47 SuperIO HWMonitor Port = 0000h
LPC47 SuperIO Device ID = FFFFh


I can post more Everest logs or logs from other things if needed.

It's a 300W power supply.

Thanks for the help.

 

Sorry about the code tags. I come from a forum where it's customary to put long text in code blocks so it doesn't take too much space.

I dearly hope it's a PSU issue - that'd be much easier to replace. With this other vote of confidence confirming my suspicions, I might go buy a stronger PSU (probably a 550W or something) and try it out.

Also, it was left on for multiple hours not in use and did not crash in the interiem - perhaps another clue that it's a power issue, if it's not crashing when hibernating.

 

Just installed a 550W power supply. I'm still sitting at

+2.5 V 1.15 V

like before. I'm not going to return the power supply because it was a good price for the upgrade (and because it's monster fan is keeping my motherboard ten degrees cooler ) but I'm still curious about this value. For now I'm going to just use the comp as normal and see if this fixed the crashing despite the anomalous +2.5V value sticking around.

 

Just reporting that the comp has been running all day without a single crash. Despite the weird low CPU voltage, I'm still willing to call this fixed as long as it doesn't relapse. So if you're finding this thread and suffering similar symptoms, consider switching PSU's, particularly if your current one is weak (I went from a generic 300W to a BFG Tech 550W.)

 

I've been asked by an admin to "conclude this thread ". I assume that means ticking the "mark this problem as solved" button? Seeing as my computer has not crashed ever since I installed the new PSU, we can call the problem solved.