-4.15V on the -12V line?

[tarzantz]

I recently built a new rig and didn't have enough in my budget to get a solid power supply. It has random restarts and blue screens about every other day. I am thinking it is the power supply but I am not sure how to check that. Here is what I put in it as well as the voltages from SpeedFan.


RAIDMAX SMILODON Extreme Black ATX-612WEBP 1.0mm SECC Steel ATX Mid Tower Foldout MB Computer Case With 500W Power Supply
(the actual power supply is RX-500s - it had 50/50 reviews on Newegg)

GIGABYTE GA-MA790X-UD4P AM3/AM2+/AM2 AMD 790X ATX AMD Motherboard

OCZ Fatal1ty Edition 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel
Western Digital Caviar SE WD3200AAJS 320GB 7200 RPM 8MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive
AMD Athlon 64 X2 7750 Kuma 2.7GHz 2 x 512KB L2 Cache 2MB L3 Cache Socket AM2+ 95W Dual-Core black edition Processor
SAPPHIRE 100245HDMI Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card

The voltages I am getting from Speedfan are:
Vcore1: 1.33V
Vcore2: 1.97V
+3.3V: 3.36V
+5V: 5.05V
+12V: 12.03V
-12V: -3.15 to -4.15V
-5V: -4.05V
+5V: 3.58V
Vbat: 3.22V

Any feedback would be very appreciated!

Thanks

 

[Proximon]

Software voltage readings are often very wrong, and never quite right. Even the less informed tech sites know to review their PSUs using a volt meter.

Did you cut corners in the wrong place? Absolutely. Never buy or use a cheap PSU. Get rid of it, no matter if it's the cause of your current crashes or not.

Go into your BIOS and check to make sure your RAM is running at the correct timings, frequency, and voltage.

 

[shortstuff_mt]

+1 to everything Proximon said.

I would also run memtest86+ overnight to test for RAM errors after you go into the BIOS and manually set the RAM speed/timings/voltage to the manufacturers specs like Proximon said.

 

[mcnuggetofdeath]

Just echoing what was said above. Make sure the rest is solid first, but I would bet money its the PSU. I did the same thing thinking that case/psu would save me money. Ended up having to replace the PSU within 6 months as it had completely died. Get yourself an efficient PSU with multiple rails and you'll be fine.