On Saturday 22 Aug 2015 09:18:05 Dale wrote: > Fernando Rodriguez wrote: > > On Saturday, August 22, 2015 1:52:00 AM Alan Grimes wrote: > >> That said, I spent the day doing diagnostics: > >> > >> > >> Findings: > >> > >> 1. There were a hell of a lot more memory errors than I had seen before. > >> 2. There was a smudge on one of the dimm's contacts and some of the > >> usual dust on the CPU-facing one. > >> 3. The motherboard was not developed by sane engineers. In a sane world, > >> there are two types of variables: measured variables and controlled > >> variables. > >> The RAM voltage would appear to be a controlled variable but it is also > >> a measured variable. In order to achieve a close approximation of 1.5v, > >> I had to set it to 1.530 volts. WTF... > >> > >> 4. an AMD K10 processor cannot successfully drive 8-ranks of high > >> density ram at 2x800 mhz -- BUT IT WILL TRY!!! I found all dimms to be > >> good either individually or in pairs, but the entire ram compliment of > >> four dims cannot be run at full speed at once with the CPU/motherboard I > >> have installed. > > > > Findings 3 & 4 sound like a faulty or underrated PSU...or a bad > > motherboard. Start by unplugging everything that you don't need to boot > > from a live CD and run some tests. > > It sure does. A weak power supply will certainly cause some issues.
I also concur that the most likely cause of this problem is the PSU but first, I would clean the RAM contacts. Then try a replacement PSU if you have a spare one, or take your multimeter and measure the output, checking for lower voltage values and fluctuations. If you get bad measurements, then take your soldering iron out and for a few pence inspect and replace any domed, or all capacitors on the secondary (output) side. -- Regards, Mick
signature.asc
Description: This is a digitally signed message part.
