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#11
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Advice request for building a Xeon E3-1275 ECC-based system fromASUS P8B WS motherboard
Castor Nageur wrote:
On 26 août, 20:26, Castor Nageur wrote: If you ask on the 2cpu.com forums, they may be able to tell you of other sources of the Tyan motherboards. I posted my request but it seems that nobody could help me on the 2cpu forums. Anyway, I succeeded in contacting the French company LDLC. Here is the product's reference: http://www.ldlc.com/fiche/PB00115676.html In facts, they never store this motherboard because the demand is very low. They just order when you order and you have to wait for a minimum of 2 weeks before can get it. The European demand seems to be very low for that kind of product. The hotliner told me that they only had one ordered in 6 months. Moreover, he explains me that it is difficult for them to order Tyan products (I suppose this is because of the low demand again !). If you have a lot of money to waste, you could investigate one of these. I notice it uses C206, has ECC, uses Xeon. You'll pay a significant premium for the privilege of owning one. http://www.anandtech.com/show/4668/h...amped-quarters Paul |
#12
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Advice request for building a Xeon E3-1275 ECC-based system fromASUS P8B WS motherboard
On 31 août, 16:35, Paul wrote:
If you have a lot of money to waste, you could investigate one of these. Unfortunately, I do not have a lot of money and that's why I want to build a reliable but cheap configuration using ECC memory. That's also why I want to build my system myself. You wrote this when I asked about the ASUS board: You can check the download page, and see if a new BIOS is available. If the BIOS has release notes, it may even indicate if changes have been made in the ECC area. I downloaded the Tyan S5512 motherboard manual and read the BIOS section. Unfortunately and like it is with ASUS, there is no ECC entry in the Tyan BIOS. * I know Tyan is a very reliable brand (ASUS is quite reliable too) so how can you be sure that the Tyan S5512 board really uses your ECC memory feature without a BIOS notification ? * Does Tyan provide some diagnostic tools which can simulate/detect ECC errors ? Could MemTest86+ detect ECC is working ? |
#13
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Advice request for building a Xeon E3-1275 ECC-based system fromASUS P8B WS motherboard
Castor Nageur wrote:
On 31 août, 16:35, Paul wrote: If you have a lot of money to waste, you could investigate one of these. Unfortunately, I do not have a lot of money and that's why I want to build a reliable but cheap configuration using ECC memory. That's also why I want to build my system myself. You wrote this when I asked about the ASUS board: You can check the download page, and see if a new BIOS is available. If the BIOS has release notes, it may even indicate if changes have been made in the ECC area. I downloaded the Tyan S5512 motherboard manual and read the BIOS section. Unfortunately and like it is with ASUS, there is no ECC entry in the Tyan BIOS. * I know Tyan is a very reliable brand (ASUS is quite reliable too) so how can you be sure that the Tyan S5512 board really uses your ECC memory feature without a BIOS notification ? * Does Tyan provide some diagnostic tools which can simulate/detect ECC errors ? Could MemTest86+ detect ECC is working ? In a quick search, I can see AMD offers an ECC error injection tool for AMD processors. I don't see an equivalent function offered by Intel for their processors. Perhaps I'm using the wrong search terms. (An example showing AMD cares...) http://wwwd.amd.com/AMD/SReleaseF.nsf/85a5bd877288a89c87256f330051687b/0a089488bf07da6b87257825005c0eb7/$FILE/ECC_MEM_TOOL_1_0_3.ZIP You could investigate how Linux handles ECC, and whether Linux has a utility or monitor that allows error injection. You could do a quick Linux install, load a package used for EDAC monitoring or testing, and test that way. Linux gives an alternative to the regular Windows ecosystem, and their idea of a solution might be better than the lack of solution I see from Intel. I haven't investigated all the details, but at least someone in the Linux world thought about the problem. Obviously, for error injection to work, there has to be an injection function in the processor, in some register. At work, we had a department that did nothing but add mechanical injection points (solder wires onto hardware and then test whether faults were detected or not), but nobody wants to do that on hardware they expect to use for a purpose. The people doing that testing, generally made a mess of the hardware they were given (as a lot of soldering was required). I took a look through the E3 processor datasheets (volume 1 and volume 2) and can't find an error injection function. I searched on the word ECC and it didn't seem to be discussed. It has to be there, somewhere... Maybe it just isn't documented. As for the topic of ECC in general, it's poorly handled. Any time this kind of discussion comes up, the same problems arise - little visible feedback, poor tool support, poor documentation, almost like ECC isn't important. As a user, you have to be pretty motivated, to spend the time verifying it all works. Paul |
#14
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Advice request for building a Xeon E3-1275 ECC-based system fromASUS P8B WS motherboard
On 2 sep, 19:01, Paul wrote:
Again, thanks very much for your precious advices. (An example showing AMD cares...)http://wwwd.amd.com/AMD/SReleaseF.ns...7256f330051687... Yes, I can see that AMD cares about ECC. Moreover, it seems that nearly all the recent AMD CPU handle ECC memory. You could investigate how Linux handles ECC, and whether Linux has a utility or monitor that allows error injection. You could do a quick Linux install, load a package used for EDAC monitoring or testing, I investigated and did not find any EDAC support for the C20x chipset (Bromolow platform) in their wiki whereas most recent AMD platforms are supported by EDAC. I took a look through the E3 processor datasheets (volume 1 and volume 2) and can't find an error injection function. So I finally decided not to go for the Tyan S5512 motherboard : it's very hard & long (& expensive) for me to get it and AMD which is cheaper supports ECC much better than Intel. ECC is the most important thing for me : I already had the problem 2 times and I had a lot of corrupted data each time. I will probably go for a system based on an AMD Phenom II X6 1100T processor. |
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