PC keeps resarting!

demon8991

demon8991

demon8991

Soldato
Joined
7 Jan 2003
Posts
4,458
Location
Gold Coast, Australia
This is driving me crazy now!

Randomly the computer keeps restarting, never under load or playing games as intensive tasks are never carried out on this computer.

I have ran memtest and prime95 and the temps are good and the ram is fine.

The spec of the computer is:

OCZ Vertex 2E 60GB 2.5" SATA-II Solid State Hard Drive (OCZSSD2-2VTXE60G)
AMD Phenom II X4 Quad Core 840 "95W Edition" 3.20GHz (Socket AM3)
Asus M4A88T-M AMD 880G (Socket AM3) PCI-Express DDR3 Motherboard BeQuiet Pure Power L7 530W Power Supply
OCZ Platinum 4GB (2x2GB) DDR3 PC3-12800C9 1600MHz Ultra Low Voltage Dual Channel Kit (OCZ3P1600C9ELV4GK)

Please see below readout from hwmonitor.

Are the voltages ok?

CPUID HWMonitor Report
-------------------------------------------------------------------------

Binaries
-------------------------------------------------------------------------

HWMonitor version 1.1.8.0

Monitoring
-------------------------------------------------------------------------

Mainboard Model M4A88T-M (0x00000200 - 0x00A975F4)

LPCIO
-------------------------------------------------------------------------

LPCIO Vendor ITE
LPCIO Model IT8712
LPCIO Vendor ID 0x90
LPCIO Chip ID 0x8712
LPCIO Revision ID 0x8
Config Mode I/O address 0x2E
Config Mode LDN 0x4
Config Mode registers
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 00
10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20 87 12 08 00 00 C1 A0 00 00 80 01 00 1F 00 00 00
30 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60 02 90 02 30 00 00 00 00 00 00 00 00 00 00 00 00
70 00 02 00 00 04 04 00 00 00 00 00 00 00 00 00 00
Register space LPC, base address = 0x0290


Hardware Monitors
-------------------------------------------------------------------------

Hardware monitor ITE IT87
Voltage 0 1.04 Volts [0x41] (CPU VCORE)
Voltage 2 3.39 Volts [0xD4] (+3.3V)
Voltage 4 12.74 Volts [0xC7] (+12V)
Voltage 5 -6.21 Volts [0x61] (-12V)
Voltage 6 -14.27 Volts [0xDF] (-5V)
Voltage 8 3.31 Volts [0xCF] (VBAT)
Temperature 0 29°C (84°F) [0x1D] (TMPIN0)
Temperature 1 34°C (93°F) [0x22] (TMPIN1)
Fan 0 2344 RPM [0x120] (FANIN0)
Fan 2 675000 RPM [0x1] (FANIN2)
Fan PWM 0 0 pc [0x0] (FANPWM0)
Fan PWM 1 0 pc [0x0] (FANPWM1)
Fan PWM 2 0 pc [0x0] (FANPWM2)
Register space LPC, base address = 0x0290

00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 19 00 FF 03 37 FF 07 37 FF 07 40 39 07 20 FF 04
10 FF FF FF 77 D0 80 81 80 01 FF 00 FF FF FF FF FF
20 41 FF D4 FF C7 61 DF FF CF 1D 22 80 DD F3 F3 F3
30 FF FF FF FD FF FF FF FF FF FF FF FF FF F7 FF FF
40 FF FF FF FF FF FF FF FF 2D FF FF FF FF FF FF FF
50 35 18 7F 7F 7F 00 56 56 90 56 F9 12 80 00 00 00
60 00 19 37 35 93 00 FF FF 00 19 37 35 93 02 FF FF
70 00 19 37 35 93 7F FF FF FF FF FF FF FF FF FF FF
80 00 00 00 00 FF FF FF FF 00 00 FF C0 02 00 99 99
90 7F 7F 7F 00 00 7F FF FF 7F 7F 7F 00 00 7F FF FF
A0 00 00 00 00 00 00 00 FF FF FF FF FF FF FF FF FF
B0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
C0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
D0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
E0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
F0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF


Processors
-------------------------------------------------------------------------

Number of processors 1
Number of threads 4

APICs
-------------------------------------------------------------------------

Processor 0
-- Core 0
-- Thread 0 0
-- Core 1
-- Thread 0 1
-- Core 2
-- Thread 0 2
-- Core 3
-- Thread 0 3

Processors Information
-------------------------------------------------------------------------

Processor 1 ID = 0
Number of cores 4 (max 4)
Number of threads 4 (max 4)
Name AMD Phenom II X4 840
Codename Propus
Specification AMD Phenom(tm) II X4 840 Processor
Package Socket AM3 (938)
CPUID F.5.3
Extended CPUID 10.5
Brand ID 17
Core Stepping BL-C3
Technology 45 nm
TDP Limit 95 Watts
Core Speed 803.7 MHz
Multiplier x FSB 4.0 x 200.9 MHz
HT Link speed 2009.2 MHz
Stock frequency 3200 MHz
Instructions sets MMX (+), 3DNow! (+), SSE, SSE2, SSE3, SSE4A, x86-64, AMD-V
L1 Data cache 4 x 64 KBytes, 2-way set associative, 64-byte line size
L1 Instruction cache 4 x 64 KBytes, 2-way set associative, 64-byte line size
L2 cache 4 x 512 KBytes, 16-way set associative, 64-byte line size
FID/VID Control yes
FID range 4.0x - 16.0x
Max VID 1.400 V
P-State FID 0x10 - VID 0x0C - IDD 19 (16.00x - 1.400 V)
P-State FID 0x9 - VID 0x14 - IDD 15 (12.50x - 1.300 V)
P-State FID 0x3 - VID 0x1A - IDD 13 (9.50x - 1.225 V)
P-State FID 0x100 - VID 0x28 - IDD 8 (4.00x - 1.050 V)

Package Type 0x1
Model 40
String 1 0x4
String 2 0x6
Page 0x0
CmpCap 4
ApicIdCoreSize 4
TDC Limit 76 Amps
Attached device PCI device at bus 0, device 24, function 0
Attached device PCI device at bus 0, device 24, function 1
Attached device PCI device at bus 0, device 24, function 2
Attached device PCI device at bus 0, device 24, function 3
Attached device PCI device at bus 0, device 24, function 4
 
Im not sure if this will help but,I had the exact same problem and it was that my ram voltage was to low.
 
Well don't take my word for it because I'm no expert but 1.04v for Vcore seems a little low... Wait until you get more responses to determine the cause.
 
Hardware monitor ITE IT87
Voltage 0 1.04 Volts [0x41] (CPU VCORE)
Voltage 2 3.39 Volts [0xD4] (+3.3V)
Voltage 4 12.74 Volts [0xC7] (+12V)
Voltage 5 -6.21 Volts [0x61] (-12V)
Voltage 6 -14.27 Volts [0xDF] (-5V)


These kind of stick out a bit :confused:
 
DavidS14 said:
Hardware monitor ITE IT87
Voltage 0 1.04 Volts [0x41] (CPU VCORE)
Voltage 2 3.39 Volts [0xD4] (+3.3V)
Voltage 4 12.74 Volts [0xC7] (+12V)
Voltage 5 -6.21 Volts [0x61] (-12V)
Voltage 6 -14.27 Volts [0xDF] (-5V)


These kind of stick out a bit :confused:
Click to expand...

Yeah I know they are off but as far as I am aware the minus voltages were irrelevant, but I may be mistaken??
 
PCI slots I think have -12v pin and serial connections/ISA used to use them.

The ATX spec says that the -ve voltages should not vary by more than +/-10%, the +ve voltages have a +/-5% tolerance.

It may be nothing but it also may point to issues with the PSU, have you got another you can try.
 
Last edited:
DavidS14 said:
PCI slots I think have -12v pin and serial connections/ISA used to use them.

The ATX spec says that the -ve voltages should not vary by more than +/-10%, the +ve voltages have a +/-5% tolerance.

It may be nothing but it also may point to issues with the PSU, have you got another you can try.
Click to expand...

Sorry for late reply been on holiday!

Ok so it seems that the -voltages are quite a way out!

Unforuntely i dont have anything else i can test it with, do you think an RMA is in order? Could these varied voltages be causing the restart issue?
 
You either have a very old PSU or the software isn't reading at least some of the voltages correctly.

-5V was optional as part of the ATX spec. from January 2002 and was prohibited in April 2003.

I'm not saying it's not the PSU and if the +12V reading is correct it's outside of the ATX spec. of 11.4-12.6V.

Have a look in the BIOS. You can usually find voltage readings there which may give you another perspective.
 
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