wynzlo Posted July 26, 2006 Share Posted July 26, 2006 I've had my machine for a couple of years and it has run flawlessly - literally has frozen up no more than a few times since I bought it. About a month ago I purchased a "VS1GBKIT400" to add to the 1gb (exact same type) I had already. As soon as I started using it the system began spontaneously rebooting during intensive Photoshop work. I blew all the dust out of the slots and reseated everything - still crashing. I tried swapping slots with the old chips which hadn't ever been touched, making sure that each pair was in its own colored slot (old pair: black slots / new pair: blue slots). I also double checked to make sure the model numbers were identical to the original chips and they were. Still completely unstable. I ran memtest86 overnight and it didn't find a single error. Right now I have the new pair removed and the system is fine. After looking around on here it sounds like I should have gone with TwinX or something from the beginning, but I'm stuck with this pair now since it's too late to return. Any help/suggestions would be appreciated. Link to comment Share on other sites More sharing options...
Yellowbeard Posted July 26, 2006 Share Posted July 26, 2006 Have you tried raising the Vdimm to 2.8v? Also, I'd suggest manaully setting the memory timings as the DIMMs, although they appear to be identical, may have different SPDs. Mike. Link to comment Share on other sites More sharing options...
wynzlo Posted July 27, 2006 Author Share Posted July 27, 2006 From what I read it sounds like raising the Vdimm requires messing around with hardware. I'm pretty much clueless when it comes to RAM. What would be the correct timings for these? Link to comment Share on other sites More sharing options...
Yellowbeard Posted July 27, 2006 Share Posted July 27, 2006 Vdimm is your DIMM voltage. It is set in the bios, refer to the manual. Also, your timings will probably be best at: CAS Latency (tCL): 3 RAS to CAS Delay (tRCD): 4 Row Precharge (tRP): 4 Active to Precharge Delay (tRAS): 8 Mike. Link to comment Share on other sites More sharing options...
wynzlo Posted July 27, 2006 Author Share Posted July 27, 2006 Thanks a lot for the suggestions so far Mike. I've put the modules back in and changed the settings as you recommended. The DIMM voltage is actually set at 2.75V. I left the burst length set at 8 - should that be alright? I'll be doing some Photoshop work tonight and tomorrow so I'll see how things go. Link to comment Share on other sites More sharing options...
Yellowbeard Posted July 27, 2006 Share Posted July 27, 2006 Yeah, 2.75v is fine, I forgot that the P4C Vdimm goes from 2.75v to 2.85v. If necessary, 2.85v is safe if you need to try that. Good luck, Mike . Link to comment Share on other sites More sharing options...
wynzlo Posted August 2, 2006 Author Share Posted August 2, 2006 My system has been much more stable since changing the timings and voltage. I have had a couple crashes, but it's a lot better than before. Thanks again Mike! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 2, 2006 Corsair Employees Share Posted August 2, 2006 Please disable legacy USB and test the modules one at a time with http://www.memtest.org and lets make sure one is not failing. Link to comment Share on other sites More sharing options...
wynzlo Posted August 3, 2006 Author Share Posted August 3, 2006 How long should I leave memtest running with each module? More than one cycle of tests? Link to comment Share on other sites More sharing options...
Yellowbeard Posted August 3, 2006 Share Posted August 3, 2006 How long should I leave memtest running with each module? More than one cycle of tests? It should find any errors within 5-10 passes max. Some die hard testers say 24 hours. Others say 32 passes. Mike. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.