ASUS M4A79XTD EVO mobo
8gb DDR3 1600 Kingston HyperX Blue ram
AMD Phenom II X4 945 3.0GHz CPU
ATI Radeon 5770 x2 in crossfire
64 GB Crucial SSD
500 GB seagate HDD
BFG Tech 650 Watt PSU
Windows 7 Ultimate 64-bit
Just built May-June 2011, never worked perfectly, but nothing terrible. However, now it seems that every day I encounter some error or issue. Anything from Blue Screens(Cache Manager, System Service Exception, Bad Pool Header, and a few others), random crashes/restarts, PC turning on with no video while GPU fan revs forever without ever getting to boot, Freezes while booting or after boot up, and random black screens while doing anything on it.
I have tried taking it somewhere for some outside perspective. They told me that the SSD and a stick of ram was bad, so I removed them and the system appeared to run nicely for about an hour, then the errors came back. I have RMA'd the parts and reinstalled them. They tell me that at their place they have no problems with the pc after stress testing it for a few days. They suggested it might be something external, like wireless mouse and keyboard....ok....so I got wired ones, still having problems.
Yesterday I removed one of the 5770s and the system ran fine for the entire day, no problems what-so-ever. Until it went into sleep mode sometime last night and now this morning it will not boot. It will turn on, lights come on and all, sounds normal, except for the 5770 fan keeps revving with no video on the monitor. It just did it for an hour with no improvement, so I shut it off.
I am completely owned and dumbfounded by this system. All and any help is greatly appreciated. I am leaning towards the problem being mobo related, but that is just a gut feeling.
The only suspect component I see on the list is the BFG Tech PSU. The wattage rating is fine, but BFG is not known for quality, especially the PSUs. If you had another PSU you could sub in, that might help at least eliminate it. The problems you describe could be caused by flaky PSU voltage, or flaky voltage coming from the wall outlet, and even a faulty surge protector.
An 80 plus certified or better PSU from Antec, Corsair, Seasonic, Silverstone or XFX is best for gaming rigs.
Tlmck, I have had that cross my mind as well. Do you(or anyone else) think that the PSU could be causing all these problems? I would really prefer not to buy extra parts if at all possible. Buying just a PSU would be okay, because I agree it is a POS by the eye test. I guess I really did not realize it when my friend gave me it.
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The ModXStream from OCZ is the superlative solution for driving today's gaming systems. Professional-grade yet designed with gamers and modders in mind, this PSU is stable, robust, and sports a sleek look and compact form factor.
The PSU is ready for your SLI or CrossFire configuration with 2 PCIe connections. There are also 6 SATA, 4 Molex and 2 Floppy connectors so you load your system however you need to. A four rail configuration balances the power output for consistent performance.
Keeping it cool is a 135mm fan and an openwork grille on the back panel. With its 80 PLUS Certified, so less energy is wasted as heat or interference, delivering more power to your hungry system!
ATX12V and EPS12V Compatible Compatible with the ATX12V v2.2 and EPS12V standards, the OCZ ModXStream Pro OCZ700MXSP provides maximum power stability to drive the latest Intel and AMD processors as well as other components for desktop and server computer systems.
700W Maximum Power A maximum power of 700W delivers safe, reliable output for high-end gaming computer systems.
80 PLUS Certified The 80 PLUS certified power supply provides high power efficiency of at least 80% at any load between 20% and 100%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.
Modular Cable Design The modular cable design allows use of only the cables you need resulting in improved internal airflow and reduced system clutter.
135mm Silent Cooling Fan The OCZ ModXStream Pro OCZ700MXSP features a 135mm thermally controlled fan for increased overall airflow and heat dissipation in the power supply enclosure.
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OCZ ModXStream Pro 700W Modular High Performance Power Supply compatible with Intel Sandybridge Core i3 i5 i7 and AMD Phenom
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CORSAIR Enthusiast Series TX650 V2 650W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply
Rosewill Green Series RG630-S12 630W Continuous @40°C,80 PLUS Certified, Single 12V Rail, Active PFC "Compatible with Core i7,i5" Power Supply
CORSAIR Professional Series HX650 (CMPSU-650HX) 650W ATX12V v2.2 / EPS12V 2.91 SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply
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