hatch Posted November 20, 2006 Share Posted November 20, 2006 Having problems with RAM Have been through all the other posts on this forum, Have set the ram voltage to 2.7, even though PC health on Bios shows 2.62v cas to 2 3 3 6 latest bios update applied from shuttle website. Basically I am now on my second batch of matched pair ram chips after RMA back to supplier because one did fail, always was unstable. The problem I have now is that each chip will work independently in each slot and pass all the memtests, however put both in as a dual channel configuration and the machine won't even post. Any ideas Ram Guy? or anyone else My setup is as follows Cheers... Shuttle ST61G4 Bom14 Motherboard FT61 v1.4 as supplied P4 3.0Ghz HT 800FSB Maxtor 10 250GB IDE drive Shuttle CR40 DVD drive Corsair XMSTwinX1024-3200C2PT matched pair DDR400 ATI 9600XT video Card 256MB Windows XP media center 2005 Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 20, 2006 Corsair Employees Share Posted November 20, 2006 That would suggest a problem with the chipset and I would get the MB replaced! Link to comment Share on other sites More sharing options...
hatch Posted November 20, 2006 Author Share Posted November 20, 2006 RAM GUY Are you sure, because tonight I have managed to get both chips running together, but I had to reduce the memory speed to DDR333, and now they pass all memory tests, Have managed to step it up 361MHZ without error, but certainly wont extend to 400. (just won't post at all) Cas set at 2 3 3 6 spectrum spreading amount is set a 0.50%, and memory hole disabled, what should these be set to? If you believe it is the chipset, should I reinstall the motherboard chipset drivers 512 will run at DDR400 1024 will only run at DDR361 (overclocked ddr333) What is your opinion now? I have read alot of threads which suggests the st61g4 does not seem to like running memory in both slots, but is more stable when only one slot is in use. has reducing the speed down to 361MHZ solved the instability that the st61g4 seems to suffer from. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 21, 2006 Corsair Employees Share Posted November 21, 2006 Please test the modules one at a time with http://www.memtest.org. Link to comment Share on other sites More sharing options...
hatch Posted November 21, 2006 Author Share Posted November 21, 2006 Ok, I will test each module in each slot at DDR400 Cas 2 3 3 6 and see what happens, what are your suspicions?, I hope I haven't got to RMA these for a third set of modules, I thought when I was buying some premium grade memory that they would be solid state, I have never had so much problem with memory modules as I have with these. These are the modules that corsair recommends for this system/motherboard why are'nt they working? and according to previous forum threads I am not the first to experience this. Sorry Ram guy, just a bit Frustrated. Many thanks for your help though, I will let you know the results. Link to comment Share on other sites More sharing options...
hatch Posted November 22, 2006 Author Share Posted November 22, 2006 Ok Ram Guy, As you requested, I have now downloaded memtest86 and tested each ram module individually at DDR400 cas 2 3 3 6 and both modules pass without error, I also ran the memtest86 on both modules plugged in together at DDR361 (overclocked DDR333) cas 2 3 3 6 and that passes also. So why it won't even post with both modules at DRR400 I don't know? I really hope you can cast some light on this? Many Thanks Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 22, 2006 Corsair Employees Share Posted November 22, 2006 What do you have the memory Voltage set to? And what is the FSB of your CPU, are you sure its 800 FSB? You might check it with http://www.CPU-Z to be sure! Link to comment Share on other sites More sharing options...
hatch Posted November 23, 2006 Author Share Posted November 23, 2006 Ram guy, thanks for your response The memory voltage I have now set to 2.75, however the Pc Health Status on the Bios Shows the DDR voltage at 2.67 I have read that there is this difference in voltage readings with these shuttles The CPU FSB is running at 200MHz, 15x Multiplier Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted November 24, 2006 Corsair Employees Share Posted November 24, 2006 The motherboard is under volting the RAM. These modules require 2.75v. Link to comment Share on other sites More sharing options...
hatch Posted November 27, 2006 Author Share Posted November 27, 2006 Ram Guy, Have tried backdating bios to see if I could get some increase in ram voltage but still only have three choices: 2.6, 2.7, and 2.75 which under P.C health only shows 2.67V, could have done with a 2.8v Anyway both modules will run together and pass memtest86 at the following: DDR361 (overclocked 333) Cas 2,3,3,6 Is it OK to run these chips at this DDR361 long term, Or would I be better to revert to a single 512Mb module at DDR400 Which of these will give the best performance under high load? 1GB at DDR361 or 512Mb at DDR400?? Would be grateful for your opinion many thanks for all your help Link to comment Share on other sites More sharing options...
Yellowbeard Posted November 27, 2006 Share Posted November 27, 2006 What you are seeing is likely a power issue as your 250w power supply is very small for your system. If you can test with a much larger high quality PSU, this may solve your issue. As far as your current options, I'd suggest the 1gb at DDR361 over the single 512mb at DDR400. Link to comment Share on other sites More sharing options...
hatch Posted November 27, 2006 Author Share Posted November 27, 2006 What you are seeing is likely a power issue as your 250w power supply is very small for your system. If you can test with a much larger high quality PSU, this may solve your issue. As far as your current options, I'd suggest the 1gb at DDR361 over the single 512mb at DDR400. Do you think it is mainly because I am running an ATI 9600XT graphics card, together with the Pentium 4 3.0GHz? Do you think that if I upgrade to the Shuttle Silent X 300W PSU (PC50) that this would perhaps solve the problem. This PSU can be directly swapped as it is made for the same chassis. Trouble is, is that it costs £65 ($120) and thats quite a bit of money if it doesn't work. Link to comment Share on other sites More sharing options...
Yellowbeard Posted November 27, 2006 Share Posted November 27, 2006 Well, the PSU fix is only 1 possibility. If there is any way to do it, I would suggest testing the system with another PSU before deciding. Even if the PSU won't actually fit inside the case, you could test with it. Also, you may want to contact Shuttle and see what options they offer. Link to comment Share on other sites More sharing options...
hatch Posted November 27, 2006 Author Share Posted November 27, 2006 thanks specmike, I'll will try a PSU from desktop tower, and let you know the result. I have tried contacting shuttle but to be honest I don't think they are interested in aftersales, support answer I got via email basically refered me to their compatibility lists, which seem to be all out of date products, and hardly any 1GB chips many thanks Link to comment Share on other sites More sharing options...
Yellowbeard Posted November 27, 2006 Share Posted November 27, 2006 You are very welcome. We will what we can to resolve this issue with you. Let us know if the PSU helps. Link to comment Share on other sites More sharing options...
hatch Posted December 3, 2006 Author Share Posted December 3, 2006 You are very welcome. We will what we can to resolve this issue with you. Let us know if the PSU helps. hello again, well I tried a new shuttle silentX 300W PSU which has dual +12Volt rails with a combined output of 21A compared with the single 15A rail supplied by the 250W PSU Upshot is that it has made no difference, still can't get above 2.67V on the Bios PC Health setting even when forced to 2.75V, Wish the bios had a 2.8V setting, any other ideas would be much appreciated. bios Dimm Voltage has following settings Auto 2.65 2.70 2.75 Although it seems that in previous bios updates before they made the motherboard Prescott friendly it used to have a 2.80V setting. Link to comment Share on other sites More sharing options...
hatch Posted December 5, 2006 Author Share Posted December 5, 2006 Bump.......... Link to comment Share on other sites More sharing options...
Yellowbeard Posted December 5, 2006 Share Posted December 5, 2006 Hatch, based on what you have posted so far, you likely have either a MOBO or a power/bios issue. In either case I don't think that the memory is failing based on the info at hand. Have you had any luck at all with Shuttle? Link to comment Share on other sites More sharing options...
hatch Posted December 6, 2006 Author Share Posted December 6, 2006 I will email them, and ask why the 2.8V ram setting in the bios appears to have been dropped when they released the latest two bios updates The main thing is, that the computer runs sweet as it is, it would just be nice to get it up to the DDR400 the Shuttle Barebones was advertised to support. Thanks for all your support so far cheers hatch Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted December 6, 2006 Corsair Employees Share Posted December 6, 2006 It looks like you have replaced the modules at least once and if so and you are still having problems I would suspect some other problem as all of our modules are tested on a MB at their rated speed before they leave. Link to comment Share on other sites More sharing options...
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