Possible cause of DFI ram deaths.

**Lithan** · 06-09-2005, 10:53 PM

I moved my dfi to 5v vdimm feed for all of five minutes. Shut down and touched the heatsink right at the corner of the board (Will be right by your cd drives when mounted in a typical case). It gave me a blister. Literally. I've never felt a mobo component get so hot, and this was WITH the heatsink on it. I wouldn't be surprised if this mosfet (I assume that's what's under there) starts crapping out after it gets so hot and this causes wild vdimm fluctuations that kill the ram. Not sure if this has been mentioned already, just posting my experience.

**AMD-me** · 06-09-2005, 10:56 PM

This really upsets me the 5v problem on the DFI, its the only bad thing ( a big one at that). I would like to get some cheap value vx, but it really isnt feasable till the 5v issue is fixed

**XtremepH** · 06-09-2005, 10:58 PM

this occurs by moving the JP17 jumper correct? Just got my DFI board up and running with some Mushkin Redline

**AMD-me** · 06-09-2005, 11:00 PM

Originally Posted by XtremepH

this occurs by moving the JP17 jumper correct? Just got my DFI board up and running with some Mushkin Redline

gl with that one, that redline will be toast in no time

**XtremepH** · 06-09-2005, 11:06 PM

Originally Posted by AMD-me

gl with that one, that redline will be toast in no time

i hope not. even though my board acting funny I think I need to flash it to the latest bios since the memory volts won't stick. the board must be trying to tell me something

**B5I8** · 06-09-2005, 11:16 PM

The best thing you can do to prevent a premature death is to put a fan blowing over both your RAM and the little heatsink on the top right corner of the board. Also, make sure you flash to BIOS 414 or newer. My Mushkin Redline has been running solid since they first came out. I bought it that very night it came out on their website. I've also ran G. Skill UTT modules and OCZ VX modules and none of them are dead. I still think it is user error causing all these RAM deaths.

**AMD-me** · 06-09-2005, 11:22 PM

So put a fan over the mosfets?

**XtremepH** · 06-09-2005, 11:23 PM

I am currently using an XP 120 and have 120MM fan that is extending over them slightly but I have another 80mm one that I am going to position over them after I flash to a new bios. I am reading 510-2 should be good for the Redline since its UTT

**AMD-me** · 06-09-2005, 11:26 PM

I want to unlease my ch-5 but a cant yet because im afriad of the 5v issue

**Trice** · 06-09-2005, 11:29 PM

Put my Redline in, did the PSU volt trick and am feeding it 3.3 volts at 250 and 2-2-2-6 with no issues at all. I have a 80 MM fan blowing on my RAM, and a 60 mm over the mosfets.

http://www.dmp-racing.com/king/benchmarks/fan.jpg

**AMD-me** · 06-09-2005, 11:31 PM

Originally Posted by Trice

Put my Redline in, did the PSU volt trick and am feeding it 3.3 volts at 250 and 2-2-2-6 with no issues at all. I have a 80 MM fan blowing on my RAM, and a 60 mm over the mosfets.

http://www.dmp-racing.com/king/benchmarks/fan.jpg

howd u mount the fan? I cant figure how to mount a fan

**madpete** · 06-09-2005, 11:32 PM

Originally Posted by Lithan

I moved my dfi to 5v vdimm feed for all of five minutes. Shut down and touched the heatsink right at the corner of the board (Will be right by your cd drives when mounted in a typical case). It gave me a blister. Literally. I've never felt a mobo component get so hot, and this was WITH the heatsink on it. I wouldn't be surprised if this mosfet (I assume that's what's under there) starts crapping out after it gets so hot and this causes wild vdimm fluctuations that kill the ram. Not sure if this has been mentioned already, just posting my experience.

Yeah, I noticed that too back when I had my VX, so started cooling it with a 60mm fan (mounted on the mobo tray, right next to it).

I found it seemed to help with stability slightly, when using higher volts (less errors from memtest). It did not however stop the VX dying at the time, or my Redline from being killed last week.

While I think it helps and you should defo cool it, I dont think its the cause of the ram death.

**AMD-me** · 06-09-2005, 11:36 PM

Originally Posted by madpete

Yeah, I noticed that too back when I had my VX, so started cooling it with a 60mm fan (mounted on the mobo tray, right next to it).

I found it seemed to help with stability slightly, when using higher volts (less errors from memtest). It did not however stop the VX dying at the time, or my Redline from being killed last week.

While I think it helps and you should defo cool it, I dont think its the cause of the ram death.

dam 5v issue

**bachus_anonym** · 06-09-2005, 11:42 PM

I have a very good advice for all of you that strongly believe DFI kills RAM or are affraid to switch to 5v feed...
*** DO NOT USE THIS FEATURE ***! Nobody forces you to do it, so what is the fuss about? This is OPTIONAL feature and you have a choice to use it or not.
Better yet... Do not use high-voltage RAM, ether. Get some TCCD or TCC5 instead, as this will probably make you all feel a lot better. Really. Instead of just jumping from one thread to another and making such a big deal out of it, just forget about anything more than 3.1v. That is more than enough for TCCD/TCC5.

@Lithan,

Have you ever had DFI NF2 Infinity/Lanparty? It had 5v feed, mosfets were hot when board was vdimm-modded, yet it worked perfectly fine for MANY users.
On my particular DFI NF4, heatsinks on vdimm mosfets are not HOT, but more than 3.7v and high LOAD on mems results in backside of the mobo (under heatisnks) to be very hot. Yet, I do not worry about it and I think you shouldn't either. Cool this area properly, that's all what matters.

**Lithan** · 06-10-2005, 01:35 AM

I used Inf nf2 and several other boards that used 5v for volts and none had any components that came anywhere near how hot this chip gets.

**bachus_anonym** · 06-10-2005, 09:52 AM

The problem is that currently most of the folks around here and probably anywhere else, has switched to DFI NF4 mobos. Many simply did not have a chance to run UTT memory on anything else than DFI NF4 as UTT has been out for about 6 months now (about same time as DFI NF4). When RAM dies, who do you think they will blame? I think, you have an answer as we all hear those voices of frustrated UTT owners.
I had played with OCZ VX before DFI NF4 came out, on MSI Neo2 and it left a bad taste in my mouth. That's why I keep away from UTT for a time being. I had EXACTLY same symptoms that many describe here.
- One stick dead, other doing OK.
- Inability to get any stability @ 6-2-2-2.0-1T but regaining it for a while when set to 6-2-3-2.0
I repeat, that was on Neo2 + DDR Booster. I went thru 2 sets of VX. When 3rd fresh set came back from RMA I just sold it.

Those are clear idicator that there must be something wrong with RAM or it gets messed up somehow after a while. Which leads me to believe, that amount of voltage applied play quite a bit of a role here as well.

@Lithan,

I assure you, on my DFI NF2 vdimm mosfet was VERY hot beyond 3.6v. Yet board have been folding/docking like crazy for about 6 months straight, 24/7 day and night, @ 3.6vdimm. Never really worried about it as I had a nice fan blowing in that area

**Trice** · 06-10-2005, 10:02 AM

Originally Posted by AMD-me

howd u mount the fan? I cant figure how to mount a fan

Double sided tape

**hovo73** · 06-10-2005, 10:03 AM

How many UTTs have died on, for example, Abit AN8 SLI?

**B5I8** · 06-10-2005, 10:49 AM

Originally Posted by hovo73

How many UTTs have died on, for example, Abit AN8 SLI?

How many people here actually have a Abit AN8 SLI and UTT?

**hovo73** · 06-10-2005, 11:15 AM

I haven't slightest idea, but don't you think we should see at least one or two UTT death on those if it is UTT's fault?

**Evil_Spork** · 06-10-2005, 11:31 AM

thats why everyone puts a canon that sink, it gets HOT

**AMD-me** · 06-10-2005, 11:51 AM

Originally Posted by Evil_Spork

thats why everyone puts a canon that sink, it gets HOT

*offtopic* you evil spork from [M]??

**J-Mag** · 06-10-2005, 11:52 AM

Originally Posted by XtremepH

i hope not. even though my board acting funny I think I need to flash it to the latest bios since the memory volts won't stick. the board must be trying to tell me something

I get this issue too... Just don't scroll down in the Genie BIOS window. If you scroll past the Vdimm option then it will reset. Obviously if you need to change something that is past Vdimm then you will have to go back to main menu and back into genie to re-set the vdimm...

**Zebo** · 06-10-2005, 12:02 PM

Originally Posted by bachus_anonym

I have a very good advice for all of you that strongly believe DFI kills RAM or are affraid to switch to 5v feed...
*** DO NOT USE THIS FEATURE ***! Nobody forces you to do it, so what is the fuss about? This is OPTIONAL feature and you have a choice to use it or not. .

LOL

Too late for some but very good advice. When I get my X2/DFI combo I will settle for ballistix which can do relativly low latency, still is fast, but does'nt need those high BH-5 and UTT volts. TCCD is another good choice.

**hovo73** · 06-10-2005, 12:43 PM

Originally Posted by bachus_anonym

I have a very good advice for all of you that strongly believe DFI kills RAM or are affraid to switch to 5v feed...
*** DO NOT USE THIS FEATURE ***! Nobody forces you to do it, so what is the fuss about? This is OPTIONAL feature and you have a choice to use it or not. .

How is that a good advice if that is exactly the reason I bought this board and about 3 or 4 sticks of Winbond memory? How is that a good advice when I have patiently waited close to 2 months for this board to come out (when ASUS, Gigabyte, MSI, and others where already out) exactly for this feature. How does your suggestions solve anything?

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