On Tue 28 Apr, David R Lane wrote: > > Hi all RISC OS X-scalers, > > Nixiyo, my X-scale RISC OS 5.13 computer, often freezes at some > time during boot-up. This can be anytime during pre-desktop > through to desktop. I know this has been discussed before, but > after searching the freelist archives I can't find quite the > answers to my queries. Nixiyo never falls over once he gets > through boot-up, in contrast to what some others reported. > > The problem is becoming more frequent, but re-booting is nearly > always successful (occasionally I have to re-boot a second time). > When it happens nothing works and only a re-boot gets Nixiyo > going. > > I know that some say the PSU is at fault. Freezing during booting is not a classic symptom of a dodgy PSU but it could possibly be. The problem with the Iyonix is the the only other things that can be changed are: PCI USB card rather improbable but I never say never PCI Graphics cards also improbable but a bit more likely than USB Memory DIMM problems are more likely to be memory errors but an outside chance PSU possible as I say but.. Motherboard ... has it had the PAL and other mods? Apart from that the motherboard is a problem as they are not available and when they were they were very expensive. > What is the price of a new PSU? Is there a recommended make/model? http://www.cjemicros.co.uk/micros/individual/newprodpages/prodinfo.php?prodcode=HEC-350-IYPA Other makes and models should be o.k. they might be cheaper or a lot more expensive! Classic & Panther cases use standard PSUs others use quite unusual ones, we are just about to take delivery of some X300 case PSUs (We had to order them from the states!) > Can a non-expert > fit it or do I take it to Castle or RISC OS dealer? PSU fitting is straightforward, the advantage a good RISC OS dealer is they can try swapping in known reliable, USB, graphics, memory & PSU. > If Nixiyo's PSU is not at fault, what could cause it? > > Cheers, > Dave Lane > Chris Evans -- CJE Micro's / 4D 'RISC OS Specialists' Telephone: 01903 523222 Fax: 01903 523679 chris@xxxxxxxxxxxxxxx http://www.cjemicros.co.uk/ 78 Brighton Road, Worthing, West Sussex, BN11 2EN The most beautiful thing anyone can wear, is a smile! --- To alter your preferences or leave the group, visit //www.freelists.org/list/iyonix-support Other info via //www.freelists.org/webpage/iyonix-support