<html><head></head><body>1. I've seen DIMMs with parity on the back side. That's a possibility. I recall encountering Registered DRAM (which these might be) where the parity function was somehow integrated into the latch register chip.<br>
2. Most of the non-eBay images I've found are *definitely not* of that part # and are therefore worthless as data points.<br>
3. That is *not* a HyperX part# despite what's in the Kingston URL.<br>
4. It's system-specific RAM: you know as well as I do that's often the regular stuff, just better tested. But not always.<br>
<br>
In short... If you have an HP XW (Kayak) series workstation, go ahead and use these. If you have an HP server, tread carefully: trust but verify. For any other use, I'd probably stay away.<br>
<br>
-Adam<br><br><div class="gmail_quote">On December 1, 2015 6:26:06 PM CST, Hartmut W Sager <hwsager@marityme.net> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)">Off the top, I'd say don't touch it! It could be a revival of those fraudulent "phantom parity" stick that were marketed long ago, though I can't imagine Kingston or HP engaging in that fraud.<br /></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"> <br /></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)">There is, however, one way these could be ECC after all. If the 4 chips on one end are the main data chips, and the other 4 chips at the other end are of much lower capacity and carry the parity bits. Unfortunately, on the eBay pic, a sticker is covering all 4 chips at one end, so you can't compare.<br /></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"> <br /></div><div
class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)">Oh, there is one other (not uncommon) possibility - some lower capacity chips on the back of the DIMM to carry the parity bits. Do we have a pic of the back anywhere?<br /></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small;color:rgb(0,0,0)"> <br /></div><div class="gmail_extra"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><font size="2"><span style="font-family:verdana,sans-serif">Hartmut W Sager - Tel +1-204-339-8331<br /></span></font><br /></div></div></div></div></div></div></div></div></div>
<br /><div class="gmail_quote">On 1 December 2015 at 17:52, Trevor Cordes <span dir="ltr"><<a href="mailto:trevor@tecnopolis.ca" target="_blank">trevor@tecnopolis.ca</a>></span> wrote:<br /><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I'm doing some ECC RAM shopping on ebay (as per prev postings).<br />
<br />
I came across something weird. There's a stick showing up in various<br />
places that claims to be ECC but all pics (and the physical unit, I've<br />
confirmed) have only 8 (or 16) DRAM chips, not 9 or 18.<br />
<br />
Does this make any sense to anybody? Is this possible??<br />
<br />
The stick is Kingston KTH-XW4400E6/2G<br />
<br />
<a href="http://www.walmart.com/ip/Kingston-KTH-XW4400E6-2G-2GB-ECC-DDR2-800-240-pin-SDRAM-HP-Server-Memory-Module/13214501" rel="noreferrer" target="_blank">http://www.walmart.com/ip/Kingston-KTH-XW4400E6-2G-2GB-ECC-DDR2-800-240-pin-SDRAM-HP-Server-Memory-Module/13214501</a><br />
<a href="http://www.ebay.ca/itm/221949985186" rel="noreferrer" target="_blank">http://www.ebay.ca/itm/221949985186</a>?<br />
<br />
<a href="http://www.newegg.ca/Product/Product.aspx?Item=N82E16820134842" rel="noreferrer" target="_blank">http://www.newegg.ca/Product/Product.aspx?Item=N82E16820134842</a><br />
specifically says in "overview" it has "Error Checking and Correcting<br />
Technology"<br />
<br />
Kingston has discontinued this part and it's hard to even find on the site<br />
anymore, but here's:<br />
<br />
<a href="http://www.ec.kingston.com/ecom/hyperx_us/partsinfo.asp?root=&ktcpartno=KTH-XW4400E6/2G" rel="noreferrer" target="_blank">http://www.ec.kingston.com/ecom/hyperx_us/partsinfo.asp?root=&ktcpartno=KTH-XW4400E6/2G</a><br />
says x72 ECC<br />
The equiv HP #'s they provide all show up on the net as 9 chip, so this<br />
Kingston stick should be ecc.<br />
<br />
??? WTF?<br />
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