I spoke to ASRock and they're still preparing the general press release, hence the DDR3 HSW-EP is still not relatively well known at this point. I had not seen the comment on the main review, though I was able to get further information direct from ASRock however on exactly what is supported. It might afford a better opportunity for DDR3 vs DDR4 comparisons.
Yes, indeed, because it seems pretty unusual, especially for Intel. As I wrote in the reply comment to the comment in the original article I mentioned above, this reminds of Phenom II with DDR2/DDR3 dual memory controller. Besides Phenom II, I don't recall any other past CPUs with dual DDRn/DDR(n+1) memory capability; maybe there are none.
My ASRock 775 DUAL-VSTA motherboard supported both DDR and DDR2. It had four DIMMs with two split per DDR standard. This board was an oddity in that it also supported AGP and PIC-E slots for graphics card. I used this mobo for a period when I knew I could only to afford a few components at a time.
Yes and no, because LGA775 was a different thing technically, because memory controller was in the chipset north bridge (VIA PT880 Pro/Ultra in your case), and not in the CPU there (I silently assumed CPUs with the integrated memory controller, but did not mention it in the post).
Since Nehalem memory controller of Intel CPUs is in the CPU itself, so Haswell-EP with DDR3/DDR4 seems to be the first time Intel releases CPU with dual memory support, provided by the integrated memory controller of the CPU itself (not the chipset north bridge).
Ivy Bridge-EX actually has dual memory support as well: one for DDR3 and the other for SMI. The DDR3 versions were sold as Xeon E5's and went into the EP socket as the 12 core models.
Jokes aside, no "Edit" function for comments makes no sense, because in order to correct himself/herself, one has to post one more comment. This lengthens the comments thread without any constructive reason.
It prevents retconning your statements - on places with editing, I've seen people edit their comments to act like they had been arguing for X the whole time, when they had actually been arguing for Y and want to "win" the argument by joining the winning side. It's dumb, and shouldn't be allowed.
It *should* also make people check what they say before they post it. It works on some no-edit sites, but it seems to have less impact here.
Agree with this - it would not only prevent recanting but it would also show the correction right next to the mistake so there's less confusion, not to mention shorter comment threads.
I brain farted. It looks like there isn't a translator chip here and that some of the Haswell-EP SKUs will support DDR3 natively, but it seems they'll be limited to only 8 x 4GB DDR3 modules.
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24 Comments
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TiGr1982 - Thursday, September 18, 2014 - link
This was already known before and pointed out in the comments on September 9 to the original Anandtech Haswell-EP article .TiGr1982 - Thursday, September 18, 2014 - link
That's the link:http://www.anandtech.com/comments/8423/intel-xeon-...
Ian Cutress - Thursday, September 18, 2014 - link
I spoke to ASRock and they're still preparing the general press release, hence the DDR3 HSW-EP is still not relatively well known at this point. I had not seen the comment on the main review, though I was able to get further information direct from ASRock however on exactly what is supported. It might afford a better opportunity for DDR3 vs DDR4 comparisons.Ian Cutress - Thursday, September 18, 2014 - link
The fact that it seems the CPUs have dual memory controllers for DDR3 and DDR4 is in itself interesting nonetheless.TiGr1982 - Thursday, September 18, 2014 - link
Yes, indeed, because it seems pretty unusual, especially for Intel. As I wrote in the reply comment to the comment in the original article I mentioned above, this reminds of Phenom II with DDR2/DDR3 dual memory controller. Besides Phenom II, I don't recall any other past CPUs with dual DDRn/DDR(n+1) memory capability; maybe there are none.creed3020 - Thursday, September 18, 2014 - link
My ASRock 775 DUAL-VSTA motherboard supported both DDR and DDR2. It had four DIMMs with two split per DDR standard. This board was an oddity in that it also supported AGP and PIC-E slots for graphics card. I used this mobo for a period when I knew I could only to afford a few components at a time.creed3020 - Thursday, September 18, 2014 - link
Forgot to mention that this was with a Intel Pentium D 920. That CPU overlocked so nicely :)TiGr1982 - Thursday, September 18, 2014 - link
Same DDR2/DDR3 support situation took place for some other LGA775, supporting Core 2 also (not only Pentium 4/Pentium D).TiGr1982 - Thursday, September 18, 2014 - link
Yes and no, because LGA775 was a different thing technically, because memory controller was in the chipset north bridge (VIA PT880 Pro/Ultra in your case), and not in the CPU there (I silently assumed CPUs with the integrated memory controller, but did not mention it in the post).Since Nehalem memory controller of Intel CPUs is in the CPU itself, so Haswell-EP with DDR3/DDR4 seems to be the first time Intel releases CPU with dual memory support, provided by the integrated memory controller of the CPU itself (not the chipset north bridge).
Kevin G - Thursday, September 18, 2014 - link
Ivy Bridge-EX actually has dual memory support as well: one for DDR3 and the other for SMI. The DDR3 versions were sold as Xeon E5's and went into the EP socket as the 12 core models.TiGr1982 - Thursday, September 18, 2014 - link
Yes, but that's a special case (not just DDRn/DDR(n+1) I've mentioned).TiGr1982 - Thursday, September 18, 2014 - link
OK, I just meant, these DDR Haswell-EP server boards were already on ASRock website on September 9, and a person noticed that then.TiGr1982 - Thursday, September 18, 2014 - link
"DDR3 Haswell-EP server boards", I meant;the comment editing functionality is lacking here, unfortunately.
hrrmph - Thursday, September 18, 2014 - link
It's a feature, not a flaw ;)And it's one that I am lobbying for them to keep.
TiGr1982 - Thursday, September 18, 2014 - link
Jokes aside, no "Edit" function for comments makes no sense, because in order to correct himself/herself, one has to post one more comment. This lengthens the comments thread without any constructive reason.makerofthegames - Thursday, September 18, 2014 - link
It prevents retconning your statements - on places with editing, I've seen people edit their comments to act like they had been arguing for X the whole time, when they had actually been arguing for Y and want to "win" the argument by joining the winning side. It's dumb, and shouldn't be allowed.It *should* also make people check what they say before they post it. It works on some no-edit sites, but it seems to have less impact here.
stephenbrooks - Thursday, September 18, 2014 - link
How about append-only edits?maecenas - Thursday, September 18, 2014 - link
Agree with this - it would not only prevent recanting but it would also show the correction right next to the mistake so there's less confusion, not to mention shorter comment threads.TiGr1982 - Thursday, September 18, 2014 - link
Yes, at least there should be a smarter way (better than current implementation).Klimax - Saturday, September 20, 2014 - link
Some places solved that by allowing only two hours for edit after posting. (vB based forums like forums.randi.org)AnonymousGuy - Friday, September 19, 2014 - link
FYI the cpu only supports DDR4. These mobos have a separate "translator" chip on them that enables DDR3 to work.TiGr1982 - Sunday, September 21, 2014 - link
Do you have a source for that info about a separate "translator" chip?And where is this chip approximately on these Haswell-EP DDR3 mobos?
AnonymousGuy - Monday, September 22, 2014 - link
I brain farted. It looks like there isn't a translator chip here and that some of the Haswell-EP SKUs will support DDR3 natively, but it seems they'll be limited to only 8 x 4GB DDR3 modules.TiGr1982 - Tuesday, September 23, 2014 - link
If so, that's too little memory by contemporary server standards.