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

[SuporterPoli]

Running 8x400 FSB
CPU at 1.34v (according to the bios)
NB 1.510
VTT 1.4
GTL's:
1/2=120
110=110
NB=130

You shouldnt need so much vtt.
In my UT X48 if i set 1.34vtt it gives around 1.33measured. And with that i could do 3.52 and 86 91 96 gtlrefs which translated into mV in 0.853,0.853 and 0.896, so around 64% for the cores and 67% for the nb. This with 1.3125vcore(bios) which is actually around 1.347(idle) and 1.328(load) if i remember correctly. And for higher FSB you should go much higher with the NB voltage, i needed for 440FSB around 1.579(bios) which is 1.55 measured.

[Justintoxicated]

For the ground spot use the the metal around the holes for the mobo screws. You should go with 63% and from there go downhill until you find something that your system likes. I would recommend to leave the GTL disabled for now since those values seem to be way to high ?

Problem is with GTL disabled I can't get over 400 FSB In fact I'm not even stable at 400 FSB if running the memory in dual channel without GTL adjustments(I can only reach 400 FSB with memory sticks in single channel without GTL settings enabled)

Using charts and 67% theory does not seem to work for this CPU. I'm not stable at all using charts the faster I go the less stable the PC is using charts and 67% theory.
For whatever reason I am stable using the highest GTL for the NB and lower GTL's for 1/2 and 0/3.

I have now reached 3600 MHZ 8x 450
CPU @ Auto + 111.10% @ 1.32v (shown in bios)
NB @ 1.504v registering as 1.53v (shown in bios)
CPU VTT @ 1.553v (set not measured on the MB)
GTLs:
1/2 130
0/3 120
NB 140

With lower values for any of these GTL's I am not stable. Lower VTT voltage and I am not stable. Lower NB voltage (need more tesing but so far not stable)

Are these settings safe? I really can't seem to get to 3800 MHZ... Also what is max safe NB voltage?

[zsamz_]

man thats too much vtt you should not need more than 1.3
like i said 61-63% gtl
and i dont think you wanna go over 1.4v on the cpu for 24/7
try 1.3vtt
try gtl
93-90-73
92-90-73
90-88-71
88-85-69
set pl manually n if you at 7 make it 8

then again you might have maxed out your cpu

[Justintoxicated]

man thats too much vtt you should not need more than 1.3
like i said 61-63% gtl
and i dont think you wanna go over 1.4v on the cpu for 24/7
try 1.3vtt
try gtl
93-90-73
92-90-73
90-88-71
88-85-69
set pl manually n if you at 7 make it 8

then again you might have maxed out your cpu

I'm sure 1.3 will work, but probably not with those GTL's, the charts do not seem to work at all for this CPU I need higher NB GTL and less 1/2 0/3 or else I fail Intel CPU Burn almost right away. I will have to back it off to 3.2 ghz with that low of a VTT.

Testing right now with VTT backed off to 1.503v and CPU voltage upped to 3.5v

[zsamz_]

I'm sure 1.3 will work, but probably not with those GTL's and I will have to back it off to 3.2 ghz

Testing right now with VTT backed off to 1.503v and CPU voltage upped to 3.5v

did you get your car battery for that 3.5v on the cpu
n vtt too high lol

[Justintoxicated]

did you get your car battery for that 3.5v on the cpu
n vtt too high lol

oops, sry 1.35v
vtt too high for 24 hour use? So I should downclock to 3.2 ghz with vtt @ 1.3 or is vtt @ 1.4v ok? I can do 3.4ghz at 1.4v vtt as sort of a compromise.

Right now it I appear to be CPU Burn Stable with the CPu at 1.35v and the vtt lowered to 1.503v. How long will the CPU last with this Vtt? I'd be happy with 3.6 ghz but if I have to go lower I will be needing to sell this crappy CPU.

[zsamz_]

oops, sry 1.35v
vtt too high for 24 hour use? So I should downclock to 3.2 ghz with vtt @ 1.3 or is vtt @ 1.4v ok? I can do 3.4ghz at 1.4v vtt as sort of a compromise.

Right now it I appear to be CPU Burn Stable with the CPu at 1.35v and the vtt lowered to 1.503v. How long will the CPU last with this Vtt? I'd be happy with 3.6 ghz but if I have to go lower I will be needing to sell this crappy CPU.

1-hey to be honest if that was my cpu i'd run it @ 4.0 till it fried
2-if i was running a 45nm quad i'd have a p5q-deluxe
3-i woulda bought either a q6600 or a q9550 or waited for an E0

[Justintoxicated]

1-hey to be honest if that was my cpu i'd run it @ 4.0 till it fried
2-if i was running a 45nm quad i'd have a p5q-deluxe
3-i woulda bought either a q6600 or a q9550 or waited for an E0

well I can't hit 4.0 ghz

not sure how I would have cooled the P5Q delux with a water block
I got this Q9450 for like $230 over a month ago so it was a decent price at the time which inspired me to build this rig which is turning out to be a POS.

I can trade ithe Q9450 for for a Q6600 though, someone already offered me that. Should I do it? I'm not sure my radiators will be able to handle the excess heat...Is 1.5v vtt going to fry my CPU?

[freaksavior]

F3.5, 190th of sec, ISO 100, no Flash, 50mm F2.0 lense Olympus e520.

I'm not googling many charts for the GTL settings for C1 stepping Maybe I will just have to guess but thats exponentialy tons of extra variables.

I'm wondering if it is better to run the PC @ 3.2 GHZ single channel (4GB ram) with default voltages or Dual Channel pumping all that crazy voltage going into the CPU @ 3.0 ghz (4GB ram) Pending testing with 8GB when I get home.

DAMN thats a good pic of the proc! i have a EOS 40d and i have tried to take some pics like that but no avail..

[Justintoxicated]

DAMN thats a good pic of the proc! i have a EOS 40d and i have tried to take some pics like that but no avail..

The IS built into the camera helped I think and the Macro lense is pretty sweet too.

So which is the safe way to run this CPu under water?

Stable clocks for C1 core (Using Intel CPU Burn) are as follows:

3400mhz 1.36v FSB 425 NB 1.5v Vtt 1.40x GTL 1/2-120 0/3-110 NB-130
3500mhz 1.39v FSB 438 NB 1.5v Vtt 1.463 GTL 1/2-125 0/3-115 NB-135
3600mhz 1.39v FSB 450 NB 1.5v Vtt 1.503 GTL 1/2-130 0/3-120 NB-140

Also I'm noticing some multiplier flux @ 3500 mhz it changes between 6 and 8 constantly drasticaly changing the clock speed. Under load it seems to stay at 3500 though? What can I do to fix this? And which of the above values are safe if any?

The 67% rule does not seem to work for this chip, although I have not actualy taken any measurements yet with the DMM so technicaly it could be possible using the charts I either fail to boot or get hard locks/BS while running Intel CPU Burn, Voltages above are what I am setting the values to in the bios. @ 3500 I'm hitting 48Gflops.


Thanks for everyones help so far and in advance as well.

[Praz]

DAMN thats a good pic of the proc! i have a EOS 40d and i have tried to take some pics like that but no avail..

It's all about practice and knowing the camera.

[zsamz_]

The IS built into the camera helped I think and the Macro lense is pretty sweet too.

So which is the safe way to run this CPu under water?

Stable clocks for C1 core (Using Intel CPU Burn) are as follows:

3400mhz 1.36v FSB 425 NB 1.5v Vtt 1.40x GTL 1/2-120 0/3-110 NB-130
3500mhz 1.36v FSB 438 NB 1.5v Vtt 1.463 GTL 1/2-125 0/3-115 NB-135
3600mhz 1.39v FSB 450 NB 1.5v Vtt 1.503 GTL 1/2-130 0/3-120 NB-140

Also I'm noticing some multiplier flux @ 3500 mhz it changes between 6 and 8 constantly drasticaly changing the clock speed. Under load it seems to stay at 3500 though? What can I do to fix this? And which of the above values are safe if any?

The 67% rule does not seem to work for this chip, although I have not actualy taken any measurements yet with the DMM so technicaly it could be possible using the charts I either fail to boot or get hard locks/BS while running Intel CPU Burn, Voltages above are what I am setting the values to in the bios. @ 3500 I'm hitting 48Gflops.


Thanks for everyones help so far and in advance as well.

i think you maxed out on fsb @450
even if you had a q6600 the latest batches maxin out 3.6-3.8
if you dont need a quad a 4,5ghz dually is sweet

[Justintoxicated]

i think you maxed out on fsb @450
even if you had a q6600 the latest batches maxin out 3.6-3.8
if you dont need a quad a 4,5ghz dually is sweet

Well Yea I should have bought a dual core but I didn't.

So you would leave it clocked to 3600MHZ @ 450 FSB? VTT 1.503v? I was hitting 76-78c under Intel CPU Burn which takes the CPU about 15-20c higher than prime 95 is able to. Seems super hot for being under water, then again we don't have the best ambient temps in Aug in California with no AC!

[zsamz_]

Well Yea I should have bought a dual core but I didn't.

So you would leave it clocked to 3600MHZ @ 450 FSB? VTT 1.503v? I was hitting 76-78c under Intel CPU Burn which takes the CPU about 15-20c higher than prime 95 is able to. Seems super hot for being under water, then again we don't have the best ambient temps in Aug in California with no AC!

ya you good @ 3.6 work on lowering vtt

[Justintoxicated]

ya you good @ 3.6 work on lowering vtt

I tried for a few hours and anything lower results in not booting up, Or Lockups/BSOD while running Intel CPU Burn.

Even went back to the charts for the 67% rule which I could not run Intel CPU Burn for more than 10 seconds before I get a hard lockup.

Any idea on fixing the fluctuating Multiplier?

[freaksavior]

macro lens helped i bet.. i got the 18-135mm lens and the lowest f stop is 3.5 so i could do it.

when i get my Q9550 i will take a pic and im going to need help oc it also

[zsamz_]

I tried for a few hours and anything lower results in not booting up, Or Lockups/BSOD while running Intel CPU Burn.

Even went back to the charts for the 67% rule which I could not run Intel CPU Burn for more than 10 seconds before I get a hard lockup.

Any idea on fixing the fluctuating Multiplier?

you not listening open your eyes
67% is no good i repeat is no good for 45nm
you need 61%-63% no more

[Justintoxicated]

you not listening open your eyes
67% is no good i repeat is no good for 45nm
you need 61%-63% no more

Yea I tried that too with no luck.

I still think I have a bad MB.

Why is it that I can run 3.2 ghz everything at default voltages but it takes crazy Vtt voltages to get the EXACT same components stable in dual cannel. If the memory controller is on the Motherboard, then would this not indicate the MB is bad? Why would this indicate a problem with the CPU settings?

Perhaps the CPU does not need the Vtt, but aparently something does cause soon as I change from slots 1&2 to 1&3 (dual channel) I become unstable unless I really pump up the voltage.

I'm thinking to buy a new Mb tonight, not sure if it will be another DFI or something else. Seems to me that the memory controller on the MB is defective.

[zsamz_]

Yea I tried that too with no luck.

I still think I have a bad MB.

Why is it that I can run 3.2 ghz everything at default voltages but it takes crazy Vtt voltages to get the EXACT same components stable in dual cannel. If the memory controller is on the Motherboard, then would this not indicate the MB is bad? Why would this indicate a problem with the CPU settings?

Perhaps the CPU does not need the Vtt, but aparently something does cause soon as I change from slots 1&2 to 1&3 (dual channel) I become unstable unless I really pump up the voltage.

I'm thinking to buy a new Mb tonight, not sure if it will be another DFI or something else. Seems to me that the memory controller on the MB is defective.

get a p5q deluxe its your only hope of tryin to see anywhere close to 4.0

[Justintoxicated]

get a p5q deluxe its your only hope of tryin to see anywhere close to 4.0

Can't watercool it so thats out. Also does not have enough esata or USB ports, or firewire ports for my needs, so thats alot of Add in cards that wont even fit into the system.... I'm tempted to just smash all this stuff with hammer, or drive over it, and ship the CPU and Board back to intel and switch back to AMD.

I need to understand why I can OC fine in single channel but not in Dual Channel. Nobody seems to know the answer but I'm pretty sure it is related to why I need crazy vtt levels. I dont even have to mess with Vtt or NB voltages or CPU voltages to achieve 3.2 ghz. This has to be one of the worst systems I have ever built.

Just got paid today so maybe I will pickup one of these bad boys tomorrow
http://toolmonger.com/2008/01/08/hot...n-annihilator/
Then we will see how pretty the DFI MB looks when I'm done with it.

[zsamz_]

Can't watercool it so thats out. Also does not have enough esata or USB ports, or firewire ports for my needs, so thats alot of Add in cards that wont even fit into the system.... I'm tempted to just smash all this stuff with hammer, or drive over it, and ship the CPU and Board back to intel and switch back to AMD.

I need to understand why I can OC fine in single channel but not in Dual Channel. Nobody seems to know the answer but I'm pretty sure it is related to why I need crazy vtt levels. I dont even have to mess with Vtt or NB voltages or CPU voltages to achieve 3.2 ghz. This has to be one of the worst systems I have ever built.

Just got paid today so maybe I will pickup one of these bad boys tomorrow
http://toolmonger.com/2008/01/08/hot...n-annihilator/
Then we will see how pretty the DFI MB looks when I'm done with it.

its not the boards fault
1-you bought a chip below your expectations
2-i coulda bought an e8500 n saved 125$ but i didnt
3-you shoulda bought a q9650 or an e8500
4-you need to learn how to overclock on a dfi board

[Justintoxicated]

its not the boards fault
1-you bought a chip below your expectations
2-i coulda bought an e8500 n saved 125$ but i didnt
3-you shoulda bought a q9650 or an e8500
4-you need to learn how to overclock on a dfi board

I still dont understand how or why it is the chips fault when it works prfectly fine with the ram in single channel, but falls apart with the ram in dual channel. Isn't this the MB's fault? Surely it is why my Vtt's seem high. I can't explain why the settings I'm using work for GTL, but nothing from the charts seem to work at all or even get me close to working. I spents a few days now trying random GTls and these are what I came up with. At least there is some kind of pattern. I dont even need to mess with Vtt in single channel @3200MHZ, so how is this not the MB's fault. I'm not saying your wrong I just want an explanation. Man Intel sucks.

[zsamz_]

I still dont understand how or why it is the chips fault when it works prfectly fine with the ram in single channel, but falls apart with the ram in dual channel. Isn't this the MB's fault? Surely it is why my Vtt's seem high. I can't explain why the settings I'm using work for GTL, but nothing from the charts seem to work at all or even get me close to working. I spents a few days now trying random GTls and these are what I came up with. At least there is some kind of pattern. I dont even need to mess with Vtt in single channel @3200MHZ, so how is this not the MB's fault. I'm not saying your wrong I just want an explanation. Man Intel sucks.

dont say intel suks
you got a cpu that wont go over 3.6
all the time you spent i hope u learned somethin

[zanzabar]

I still dont understand how or why it is the chips fault when it works prfectly fine with the ram in single channel, but falls apart with the ram in dual channel. Isn't this the MB's fault? Surely it is why my Vtt's seem high. I can't explain why the settings I'm using work for GTL, but nothing from the charts seem to work at all or even get me close to working. I spents a few days now trying random GTls and these are what I came up with. At least there is some kind of pattern. I dont even need to mess with Vtt in single channel @3200MHZ, so how is this not the MB's fault. I'm not saying your wrong I just want an explanation. Man Intel sucks.

u need to change your sub timings and cross channel timings

[SNiiPE_DoGG]

@Justintoxicated

This board is extremely limited at 445-450 fsb unless you pump the NB volts up under water and know exactly what your doing when you are tweaking. GTL's are necessary to do this right and every chip+board combo is different.