**Official DFI LanParty UT X48-T2R(and LT) Discussion

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Originally Posted by cbutters

How are you guys getting by with your VTT so low???
I cant even get my computer to boot at 8x450 with my x3350 unless I upp my cpu vtt to 1.4
Unfortunately I don't even really know what VTT is... lol, other than anandtech's review said that for 450+ FSB requires vtt of 1.58 ? How are you guys cruising at 1.1v?
any ideas?

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This X3350 seems to be an enigma...I was running it on my DFI LT LP P35 T2R and it is a bear to get stable at 3.6GHz (450FSB) without really cranking up the voltages. What is really interesting is if I run P95 small ffts it ran for an hour but as soon as I stopped and tried blend it failed immediately. That is when I started to up the NB core and vtt voltages. Finally I could get it to run blend for a while. And even more interesting is my Asus P5K-Premium runs it at 3.6GHz (450FSB) with only 1.3vcore increase and all other settings at their respective minimums.

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Originally Posted by seamumc

I would say disable both the Intel and JMicron hard drive support though.

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Good point. :up:

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Originally Posted by Praz

Using the 9650 with Vista 64 be sure "PPM (EIST) Mode" and "Virtualization Technology" is disabled in the BIOS during the install.

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Would I have to do the same if I am using a 6600? I'm having the same issues.

Question about a Memory timing on This board. Has anyone changed the "Write Recovery Time" in bios, and had "Write to Precharge Delayed" change at the same time to the same value??

Both Memset and Everest show them both changing with the setting of TWR in bios. Problem is, my setting/s are both 13 at the moment with the G.Skill pc8000 2x2gb kit, and I am trying to tighten up my timings but only 1 at a time.

Is this a bug in the bios or...? I've searched in the memory section to no avail. Also, anyone have any sub-timings in which to compare for this ram? I'm only running them at 8.5 x 500.

Larry

Thanks for the advice, but it did nothing for me at all. No matter what I do, I cannot load Vista, period. I tried PS2 keyboard and mouse, different video cards, ram, with the Areca and without, disabling J-Micron, ide and ahci mode and nothing. It still freezes. It would appear the board is not right.

Shawn

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Originally Posted by sofarfrome

This X3350 seems to be an enigma...I was running it on my DFI LT LP P35 T2R and it is a bear to get stable at 3.6GHz (450FSB) without really cranking up the voltages. What is really interesting is if I run P95 small ffts it ran for an hour but as soon as I stopped and tried blend it failed immediately. That is when I started to up the NB core and vtt voltages. Finally I could get it to run blend for a while. And even more interesting is my Asus P5K-Premium runs it at 3.6GHz (450FSB) with only 1.3vcore increase and all other settings at their respective minimums.

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I am seeing that exact situation!
I got too worried cause at 3.6 i needed 1.6 vtt and 1.62NB voltages in order to get stable, but at 3.5 (8x438), I have dropped voltages to 1.4V VTT and 1.4v NB so far and no problems, I'm still dropping the voltage as we speak and testing stability. Why is 450 FSB so hard? would a 333 strap vs a 400 strap be better? or what if we went straight to 460? maybe something is up with 450FSB on this board. Kinda like when the P965 chipset came out and the 380-400 FSB range was iffy, but 401 and up was fine?

My board I received Friday will not post at all :confused: :( , all my parts, CPU, Ram and so on are recommended by DFI for this board. I put everything back on my DFI P35 and all is well. The X48 seems to boot but I see nothing, running XP. Anyone else have this?

Note: Im running G Skill on the LT not the CellShock you see in Sig.

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Originally Posted by shawn1998

Thanks for the advice, but it did nothing for me at all. No matter what I do, I cannot load Vista, period. I tried PS2 keyboard and mouse, different video cards, ram, with the Areca and without, disabling J-Micron, ide and ahci mode and nothing. It still freezes. It would appear the board is not right.

Shawn

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Did you disable C1E & EEIST in the CPU Feature screen ?

My mosfets were a bit hotter than I would have liked them to be. I took 3hours to take the whole rig apart (ifx-14 is such a pain in the...) and took off my stock mosfet heatsink.

I was disgusted by what was under the mosfet HS. I should have taken a pic. There was a ton of hard crusty grey thermal compound of some sort. It was fully crusted. I picked it off in chunks with the center post of a q-tip.

After cleaning up the dump that DFI took under my heatsink, I put a think layer of OCZ Freeze on it. My temps are down 20degrees.

If your mosfets are hot, go check your hs!

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Originally Posted by cbutters

I am seeing that exact situation!
I got too worried cause at 3.6 i needed 1.6 vtt and 1.62NB voltages in order to get stable, but at 3.5 (8x438), I have dropped voltages to 1.4V VTT and 1.4v NB so far and no problems, I'm still dropping the voltage as we speak and testing stability. Why is 450 FSB so hard? would a 333 strap vs a 400 strap be better? or what if we went straight to 460? maybe something is up with 450FSB on this board. Kinda like when the P965 chipset came out and the 380-400 FSB range was iffy, but 401 and up was fine?

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333(667/800) strap runs best for me.800 better then 667.If i use 266(667/800) takes to much NBv and others.400 strap does not work to good for me.

MCW30 installed on NB.Lower idle temps:) .

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Originally Posted by SmokeyTheBandit

Did you disable C1E & EEIST in the CPU Feature screen ?

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Yes, I did. I always disable those two things right off anyways. Like I said before, I really have tried every possible setting in the bios, swapped out hardware, tried different Vista install disks and nothing helps. I plan on rma'ing the board, so hopefully a new one will work out better.

Shawn

Shawn I think I'm going to have to go that route also. My board is just real flaky.

I guess this is the risk we take when getting the very latest and newest hardware. Sometimes it just doesn't work well the first go around. I am just hoping the newegg still has these available when I return it...

Installed vista ultimate 64-bit with no issues.Loaded optimized defaults in bios.Bumped up ram voltages.Disabled eist,c1e and vt.

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Originally Posted by shawn1998

Well, got my board in yesterday and it posted into the bios without issue. But, I was unable to ever get it to install Vista 64. It would hang, most of the times right after it initially loads it's first files (when the cursor comes on the screen for the very first time), sometimes right after I put the serial number in, but always a hard lockup. I tried it stripped down with one stick of ram, with the Areca 1210 in the 4X and 16X slots, with no usb mouse or keyboard attached, with nothing but the video card and 1210 installed. All with lockups. I had the bios at stock settings only, no tweaks, although I tried tweaking voltages to see if that would help (it didn't). I put the EX38 DS4 back in and it installed it without issue (and OC'd to 3.33 ghx as well).

Seems I might have recieved a bum board from newegg, unless someone else knows what the issue might be?

Shawn

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hmm usually any failure of installation of OS at stock hardware is caused my ram issues.

installed vista ultimate 64 twice on this board no issue whatsoever.

question are u running ahci??...

not to start a flame or anything
but noticed two of u up there having gigabyte mobo's
if ure expecting this to be a plug and play mobo like gigabyte.. ure going to be disappointed..

takes a lot of work and patience with this board.. but the stability of it just amazing.. hands down.. awesome board..

not to start a flame or anything
but noticed two of u up there having gigabyte mobo's and wanting to give up on this board.

if ure expecting this to be a plug and play mobo like gigabyte.. ure going to be disappointed..

takes a lot of work and patience with this board.. but the stability of it just amazing.. hands down.. awesome board..

but i still dont get the purpose of the vdroop control.
if enabling it u get more droop.. then whats the point??
at least the maximus stops the drop almost entirely.

I could not install Vista x64 with the newest BIOS unless I underclocked. It froze at the first screen with a mouse.

Performance in Vista seems to quite poor. Everything is real jumpy and menus can take a while to load. Horrible compared to my Gigabyte P35 board.

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Originally Posted by cstkl1

but i still dont get the purpose of the vdroop control.
if enabling it u get more droop.. then whats the point??
at least the maximus stops the drop almost entirely.

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I think DFI has a logic problem, to eliminate the VDROOP, you need to disable it in the Bios, NOT enable it, that is what I had to do with my DFI P35.

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Originally Posted by cstkl1

not to start a flame or anything
but noticed two of u up there having gigabyte mobo's and wanting to give up on this board.

if ure expecting this to be a plug and play mobo like gigabyte.. ure going to be disappointed..

takes a lot of work and patience with this board.. but the stability of it just amazing.. hands down.. awesome board..

but i still dont get the purpose of the vdroop control.
if enabling it u get more droop.. then whats the point??
at least the maximus stops the drop almost entirely.

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I had my motherboard on all default settings (didn't touch a thing but RAID) to set up Windows and get everything installed before I started tinkering. I would expect the board to perform quickly and without tweaks required on the default settings.

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Originally Posted by pauldovi

I could not install Vista x64 with the newest BIOS unless I underclocked. It froze at the first screen with a mouse.

Performance in Vista seems to quite poor. Everything is real jumpy and menus can take a while to load. Horrible compared to my Gigabyte P35 board.

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:rofl: :rofl: gigabut :rofl: :rofl:

i gave up on gigabut last year " gave the crap board to my son"
terrible vdroop
terrible voltage control
terrible bios
most boards like driving automatic
not all people can drive n change gears
you want performance you better learn to tweek:p:

i tested 3 os systems today on dfi the best was xp64
i installed vista64 in less than 30 min
i think vista64 suks xp64 much better
dissable all cpu features but your cores

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Originally Posted by zsamz_

:rofl: :rofl: gigabut :rofl: :rofl:

i gave up on gigabut last year " gave the crap board to my son"
terrible vdroop
terrible voltage control
terrible bios
most boards like driving automatic
not all people can drive n change gears
you want performance you better learn to tweek:p:

i tested 3 os systems today on dfi the best was xp64
i installed vista64 in less than 30 min
i think vista64 suks xp64 much better
dissable all cpu features but your cores

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I don't think I should have to tweak in order to basic functionality like installing an OS.

well no idea whats going on ure board
but no issue with any from of installation of os..

but again afaik usually failure of installation of OS is due to ram normally when ure installing on default..
seen this on multiple computer configs whenever i troubleshoot for ppl.
90% of the time.. its always been the rams.. either voltages, faulty rams, installed on the wrong bank, etc.

wait u said u didnt touch a thing but raid...
on jmicron or ich9r??
also have u tried first installation on HDD without raid..??
i am running mine on ahci on jmicron
and raid on intel ich9r.. no issue.. except i used the drivers on my usb floppy which was from the maximus since i already had a disk with it.

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Originally Posted by cstkl1

but i still dont get the purpose of the vdroop control.
if enabling it u get more droop.. then whats the point??
at least the maximus stops the drop almost entirely.

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There is a hell of a lot of misunderstanding of Vdroop, what it is and why it's there. Vdroop is not a mobo problem, it's actually a design feature of Intel cpu's so therefore is part of the power delivery system of all Intel chipset mobo's. It's there to make shure the cpu get's the right vcore for what it is doing. If you have Eist, C1E and Vdroop control enabled at the same time your cpu will NEVER be in a position where it is being overvolted. You will also find that your PWM temps stay very low, in my case 38c under full Orthos load on stock cooling. Dissabling Vdroop control leaves your cpu open to large variations of vcore, hence the reason people complain of very high PWM temps.

This article helps explain vdroop & what it does/is, well worth a read.

http://www.anandtech.com/cpuchipsets...spx?i=3184&p=5

CN :)