Mac Pro 1.1 constant restarts and accelerated fans

[Iswell]

Hi. I have a Mac Pro 1.1 2x2 GHz Dual-Core Intel Xeon - now with 2Gb 667 MHz DDR2 FB-DIMM. 1 month ago it started to restart suddenly. now it is restarted even in single user mode. I have tried everything. PRam. Single User, Safe Mode. and it restarts always. I may have corrupted the system, now doesn't appear crash reports. Reboot suddenly and put the fans on top. one of the RAMs was not working. I have removed it and the fans have started to work in excess and now no longer restart ..

It was running great for years with os x 10.6.
In the Apple Store they said 2 Ram was broken.
I took it to another repair shop and they say they clean it and have changed the thermal paste but they didnt fix at all and it continues to restart and fans accelerates and led blinking and now they say is a ram issue. What do you think. And if i have to buy ram. I'm so lost. anyone can give some advice please. Thank you

 

[orph]

just get some cheep x-server pc ram dont get the overpriced mac ram if your on a budget
something like this is worth a go
https://www.ebay.co.uk/itm/16GB-4X-...233178?hash=item2f10145e1a:g:0OQAAOSwA~VaIrG2
(uk ebay) only £15 for 16gb of ram so not to bad as a cheep test to see if thats the problem and if it works all's good

if ram is the only problem that may fix it

 

[Iswell]

Hello. Thanks for your answer. That's what I did. I bought 2 x 2 gb of ram but the symptoms continue: spontaneous restart and acceleration of the fans. Now it does not pass the black screen. I put the ram modules in different slots. And sometimes it starts and sometimes it does not. When I put ram in the bottom riser it does not recognize them. I tried to put all the modules in top riser and it started, but when I started to open the software, restarting and fanning fans. I even read 5 Gb when I put 2x2 Gb + 2x512Mb with old RAM modules, all in the upper riser. But then it restarts spontaneously. When I place modules in the lower riser, it does not recognize them. I managed to start it for a while, with all the modules in the upper riser but without putting the bottom riser, it started but restarted again. It can't work without a lower riser or is it another problem? Thank you very much.

 

[SamirPD]

Sounds like an issue with the risers. Have you tried swapping/reseating them?