X48 chipset is X38 upgrades, inherits X38's Bug?

**cookerjc** · 10-12-2007, 07:31 PM

According to the info we have, the upcoming X48, actually is selected X38 chip.

Of course, Intel push up the performance of the chipset. We all know X48 supports 1600MHz FSB YorkField and Supports DDR3 1600 XMP. Of course Intel finally decide to abandon DDR2.

Because X48 are only an"OC version of X38”,the bug inside X38 still exists in X48. for example, if the computer have a warm reset or S3(post to ram), the PCIe width may reduces. you may experience Such bugs in X48.

original post http://news.expreview.com/2007-10-13...3971d3928.html

**NeedMoMegaHurtZ** · 10-12-2007, 07:39 PM

So basically keep P35 since X38 & X48 are busted?

What/When is the next one? Eaglelake?

**Zytek_Fan** · 10-12-2007, 07:42 PM

At least they admit to problems...

But it is a huge mistake for Intel to abandon DDR2 when DDR3 is barely taking grasp. Price of DDR3 is terribly high and no 4GB (2x2GB) kits that are any good are available yet...Also DDR3 has no advantage over DDR2 besides more bandwidth which makes no difference whatsoever.

**cookerjc** · 10-12-2007, 07:43 PM

Originally Posted by NeedMoMegaHurtZ

So basically keep P35 since X38 & X48 are busted?

What/When is the next one? Eaglelake?

X38 & X48 not busted, those bugs are minor...

**DFI pit bull** · 10-12-2007, 09:37 PM

Something a future bios update will sort out I think.

**Jacky** · 10-13-2007, 04:38 AM

lol they don't abondon ddr2, it's just for the super-mega-high-end which x48 is!

**Shintai** · 10-13-2007, 04:42 AM

Do people even know what S3 is...for a laptop this would be a big (yet still small) impact.

S3 is a deep SLEEP state for the entire PC. Aka not running.

So basicly a 3% chance that happens and the PCIe is trained at a lower speed.

S3 is called Standby in Windows, Sleep in Mac OS X, and sometimes also Suspend to RAM (STR), although the ACPI specification mentions only the terms S3 and Sleep. In this state, main memory (RAM) is still powered, although it is almost the only component that is. Since the state of the operating system and all applications, open documents, etc. lies all in main memory, the user can resume work exactly where he/she left off—the main memory content when the computer comes back from S3 is the same as when it was put into S3.

**~~OBR~~** · 10-13-2007, 04:44 AM

This "X38 bug" is only minor fault in very rare using ...
X48 is handpicked X38 ... this information is clear many weeks ...

**Praz** · 10-13-2007, 04:44 AM

The price point x48 based boards are most likely to be at DDR3 only capability is likely to be a non-issue for the prospective buyer.

**NH|Delph1** · 10-13-2007, 05:43 AM

Btw, X38 supports 1600MHz FSB already

And I must've missed something but I thought this was already reported a while back?

//Andreas

**Hornet331** · 10-13-2007, 06:43 AM

Originally Posted by NH|Delph1

Btw, X38 supports 1600MHz FSB already

And I must've missed something but I thought this was already reported a while back?

//Andreas

i dont see a problem for normal pc here, i never use s3 state for my pc, its either off (really of with the switsch turned of at the socket) or its running. :p

**cadaveca** · 10-13-2007, 09:26 AM

Originally Posted by NH|Delph1

Btw, X38 supports 1600MHz FSB already

And I must've missed something but I thought this was already reported a while back?

//Andreas

IT only supports it using 2 DIMMs, maybe? S3-resume bug is triggered more commonly(9 of 15 times) with higher FSB speeds, and hence the binning, as a regular X38 will have major issues with 400FSB?? Remember, if we are hearing about the bug, it's obviously an issue being talked abut in a large way, IMHO. They have not been able to hide this one, and sry, but my PC sleeps ALOT.

**Shintai** · 10-13-2007, 10:35 AM

Originally Posted by cadaveca

IT only supports it using 2 DIMMs, maybe? S3-resume bug is triggered more commonly(9 of 15 times) with higher FSB speeds, and hence the binning, as a regular X38 will have major issues with 400FSB?? Remember, if we are hearing about the bug, it's obviously an issue being talked abut in a large way, IMHO. They have not been able to hide this one, and sry, but my PC sleeps ALOT.

So you always use the standby on your PC?

The bug is a default bug so to say, 3% chance or once a month.

Also the speed impact might be quite very low depending on system. And seems to be an ACPI bug with fixable via BIOS.

We hear about hyped bugs all the time. Its just a matter of determine of the bug is a really a problem or more a tabloid story.

**Aerou** · 10-13-2007, 10:41 AM

Originally Posted by cadaveca

and sry, but my PC sleeps ALOT.

what? you arent crunching?

gotcha!

**Face** · 10-13-2007, 01:03 PM

They left out the interesting one:

http://hkepc.com/?id=220

**Zytek_Fan** · 10-13-2007, 01:15 PM

X38 supports 1600mhz FSB also.

**Aerou** · 10-13-2007, 01:25 PM

Originally Posted by Zytek_Fan

X38 supports 1600mhz FSB also.

my 975X mobo also does

(hm .. OCed ) j/k

**MGreg** · 10-13-2007, 02:46 PM

Originally Posted by Zytek_Fan

X38 supports 1600mhz FSB also.

I'd hope so. Asus is showing it on the asus maximus formula. Make that all there ddr2 x38 boards.

http://www.asus.com/products4.aspx?m...11&l3=572&l4=0

**Ace-a-Rue** · 10-13-2007, 03:12 PM

Originally Posted by Shintai

The bug is a default bug so to say, 3% chance or once a month.

Also the speed impact might be quite very low depending on system. And seems to be an ACPI bug with fixable via BIOS.

We hear about hyped bugs all the time. Its just a matter of determine of the bug is a really a problem or more a tabloid story.

whole heartedly agree with your observation...really a non-issue...appears to be bios fixable.

**Blauhung** · 10-13-2007, 03:35 PM

Originally Posted by Zytek_Fan

X38 supports 1600mhz FSB also.

Intel does not support 1600mhz on the x38, the mobo makers are free to do as they please as long as they can honestly state that all the boards they sell will run that speed out of the box 24/7. Intel can't make that same claim as they are not responsible for each and every board/bios design.

**Cooper** · 10-13-2007, 04:40 PM

x48 - $70
x38 - $50

Almost the price of entry-level motherboard

**RPGWiZaRD** · 10-13-2007, 04:48 PM

I'm just happy I picked up a P35 board instead of waiting for X38. Seems like there were no need to do so either as I haven't seen anything spectacular about them yet.

**Ace-a-Rue** · 10-13-2007, 05:32 PM

the X38 appears to be better performance with DDR3 but you are going to get a lower FSB overclock compared to the P35 boards.

when i went from the Abit QuadGT board over to Abit's IP35 Pro, the performance was just on par although i was not getting over 390 FSB at 9x on a Q6600 B3 cpu with the QuadGT...the Pro board allowed me 450 FSB with the same cpu but it was no faster than the QuadGT!

**cadaveca** · 10-14-2007, 09:30 AM

Originally Posted by Aerosupra

what? you arent crunching?

gotcha!

LoL...yes, i crunch, and, actually, the sleeping issue, kinda useless...but the warm reboot side of it is not. Nevermind ONE DIMM ONLY FOR XMP!!!!!

Intel screwed up big time on this chipset. I ain't buying nodda whether it's called X38/X48 I don't care!

**Vapor** · 10-14-2007, 09:36 AM

They're just not going to spec X48 to run 4-DIMMs at 1600MHz. I don't doubt it WILL do it in our hands with any decent board design, but it's just not a spec.

And when they say one DIMM, it means one DIMM per channel.

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