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Is my PSU enough?

post #1 of 9
Thread Starter 
For the rig in my sig. I recently have had a problem where my computer just reboots. I don't know why but it does. No BSOD, no warning, no error log's.

I have a Tagan 600w SLI PSU (I won it, so it was free). Her are the specs.

Brand Tagan
Model TG600-U25
Spec
Type ATX12V / EPS12V
Maximum Power 600W
Fans Dual Push-Pull Fans
PFC Active
Main Connector 20+4Pin
+12V Rails Yes
PCI-E Connectors 4 x 6Pin
NVIDIA SLI Support SLI Certified
Modular Cabling Support No
Efficiency > 80%
Energy-Efficient 80 PLUS Certified
Over Voltage Protection Yes
Input Voltage 100 - 240 V
Input Frequency Range 50/60 Hz
Input Current 10A @ 115V, 6A @ 230V
Output +3.3V@28A,+5V@28A,+12V@48A(4 Rails),-12V@0.8A,+5UVSB@3.0A
Approvals TUV, UL, CE, CB, FCC, Semko, Nemko, Demko, Fimko
Features
Connectors 1 x Main connector (20+4 pin)
1 x 12V(P4)
1 x 12V(8pin)
4 x PCI-Express 6pin
7 x Molex 4pin/VGA 4pin
10 x SATA 5pin
4 x Combo-S2M(SATA to Molex)
1 x Y-Cable(Molex to FDD)
1 x Ground wire
Features Dual Transformer
Black painting case
Low ripple and noise
100% Hi-Pot Tested
Short circuit protection on all outputs
Over Current Protection
Over Voltage Protection
Over 80% efficiency


Could this be a PSU issue? If so, what shall I get 850w? 1000w?
Thanks for the help.
post #2 of 9
Thread Starter 
knock, knock.
Who's there?
Hailscott.

RUN!!!!!!!!!


Any help would be appreseated! +reps too!!
post #3 of 9
Do you have "automatically restart" unchecked in Startup and Recovery in the Advanced tab of System Properties?

If you uncheck the box and the PC still reboots w/o any BSOD or anything, then it could be PSU.

If you uncheck the box and get a BSOD, the problems probably RAM.
post #4 of 9
Thread Starter 
Quote:
Originally Posted by jonnyGURU View Post
Do you have "automatically restart" unchecked in Startup and Recovery in the Advanced tab of System Properties?

If you uncheck the box and the PC still reboots w/o any BSOD or anything, then it could be PSU.

If you uncheck the box and get a BSOD, the problems probably RAM.
Yes I have that Unchecked.

My ram passed with memtest. I did this with my old ram too.
post #5 of 9
Could be that you're overloading the PSU or the PSU is just failing (if it just started doing this out of the blue). Get a multimeter and check your voltages. If they're close to spec, they might be dipping out of spec under heavy load and causing the PC to reboot.
post #6 of 9
Thread Starter 
Quote:
Originally Posted by jonnyGURU View Post
Could be that you're overloading the PSU or the PSU is just failing (if it just started doing this out of the blue). Get a multimeter and check your voltages. If they're close to spec, they might be dipping out of spec under heavy load and causing the PC to reboot.
I don't have to be under heavy load for it to reboot. I have been watching my voltages using Everest (which seems to be the most accurate for me) and I don't see any rippels or dipps with current. Am I running out of Amps? I have 4 rails with 48A total.
post #7 of 9
Quote:
Originally Posted by Hailscott View Post
I don't have to be under heavy load for it to reboot. I have been watching my voltages using Everest (which seems to be the most accurate for me) and I don't see any rippels or dipps with current. Am I running out of Amps? I have 4 rails with 48A total.
Everest, like any other piece of voltage-reading software, is not accurate. It doesn't measure ripple, and if there was a drop that caused a reboot Everest wouldn't catch it anyways because the machine would reboot at the point where the voltage dropped to low. Get a DMM.

Running out of amps? No. But if the PSU is faulty, defective, dying, what have you, the voltage regulation could become very poor and cause the voltage to drop way out of spec.

If the voltages seem to be rock solid, then the problem is something else. Motherboard?
post #8 of 9
How's the temp? There is an opiton in BIOS to trigger OS shutdown such as cpu temp reaches certain level, system or cpu fan failed etc. Check them out first.
post #9 of 9
Thread Starter 
Quote:
Originally Posted by linskingdom View Post
How's the temp? There is an opiton in BIOS to trigger OS shutdown such as cpu temp reaches certain level, system or cpu fan failed etc. Check them out first.
Temps are great. 23-38c idle (depending if my window is open or not) and 40-45c under load. I used a PSU calculator to see what it said, and I am pretty close. It said I was using about 543 watts and about 42 amps. Should I believe the PSU calculator? I just don't feel it is the psu. BTW I just did a restore because I loaded Front Lines: Fuel of war and Americas Army then it started happening. I restored it to feb. 29th and It seems to have worked. I haven't had it reboot on me yet for almost 5 Hrs now. Ill keep ya posted. Thanks for all the replies. repped!!
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