What does this mean in Prime 95?

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mitchafi

Golden Member
Mar 25, 2004
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that is exactly what I have. It says it's an iso but it is actually a .img file which I suppose is a type of iso. Problem is I don't know how to burn it and going to file ---> burn image doesnt seem to do the trick, even when I select ALL FILES.
 

yelo333

Senior member
Dec 13, 2003
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Originally posted by: mitchafi
Heh, I know I downloaded the program from memtest86.com. I just don't know what program to use to burn the .img iso onto a cdrom. Nothing seems to support burning of .img's. Nero definitely doesn't appear to.

Nero has been great to me - just pick burn image to cdrom(or something like that- running linux now, so no nero), and select show all files, and pick that .iso - works every time for me!
 

mitchafi

Golden Member
Mar 25, 2004
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ok here's the deal. It's not a .ISO, its a .IMG. With Nero 6 I am going to Recorder---->Burn Image. From there I go into the folder and there are two files:

File 1) name: boot type: security catalog size: 2kb
File 2) name MEMTEST type: IMG file size: 1,440kb

I go to nero, burn image, select all files...then which of these files do I choose, it doesn't let me choose both.
 

mitchafi

Golden Member
Mar 25, 2004
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So say I just forget about this and continue using my PC even though it fails Prime95's torture test miserably. Will running my PC like this damage any components or do damage of any kind. My PC has not crashed once except when I overclocked it too high and it feels perfectly stable to me. But what I want to know is if it could cause any irreparable damage that would make this worth getting to the bottom of.
 

Technonut

Diamond Member
Mar 19, 2000
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Originally posted by: mitchafi
So say I just forget about this and continue using my PC even though it fails Prime95's torture test miserably. Will running my PC like this damage any components or do damage of any kind. My PC has not crashed once except when I overclocked it too high and it feels perfectly stable to me. But what I want to know is if it could cause any irreparable damage that would make this worth getting to the bottom of.
Sure, you could ignore P95 if you want. Personally, I would at least like to know what is causing the failure though... ;)

You may not see it now, but whatever is causing the instability may just bite you in the ass when you least expect it. :brokenheart: I suggest backing-up often, and not participating in any distributed computing projects until you find the issue.
 

mitchafi

Golden Member
Mar 25, 2004
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ok thanks, I'm still trying a few different random things...don't think cool n quiet would have anything to do with it do you? Or anything obscure in bios?
 

Technonut

Diamond Member
Mar 19, 2000
4,041
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What kind of temps (CPU/System) are you getting with P95 running for 1 hour?

EDIT: I would also raise your VDIMM up to 2.7V and give it a try... Sometimes the RAM needs just a little bump to make it happy.. ;) Don't worry, it is perfectly safe.
 

mitchafi

Golden Member
Mar 25, 2004
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Asus Probe tells me around 44-45. I idle at 37 CPU 31 MB. That reminds me, my voltage readings in Asus Probe are slightly off, but only very slightly...does that mean anything? For example my 12V is running at 11.7V and my 5V at 4.972V.
 

mitchafi

Golden Member
Mar 25, 2004
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no need to get hostile Sid. I did that, and even selected ALL FILES, then burned the .img, to no avail. But I will try renaming it to an .iso I never considered that. Btw is the v-dimm voltage neccesary called that? I didn't see it in bios but I saw v-link, DDR, and some others..
 

imported_Phil

Diamond Member
Feb 10, 2001
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Um, once the disc is written, you won't see any files in Windows, you're not supposed to. Boot with the CD.
 

Sid59

Lifer
Sep 2, 2002
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Originally posted by: mitchafi
no need to get hostile Sid. I did that, and even selected ALL FILES, then burned the .img, to no avail. But I will try renaming it to an .iso I never considered that. Btw is the v-dimm voltage neccesary called that? I didn't see it in bios but I saw v-link, DDR, and some others..

wasn't hostile, trying to help.
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
27,259
16,116
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Did anybody read my post above ? the memtest boot CD works in all of my other computers, BUT NOT IN MY K8V ! Has anybody else got it to work in their K8V ?

mitchafi: Have you run 3dmark03 ? Actually, if you can get thru that benchmark with a system, I find that to be a pretty good indicator of stability.... And when I run Prime95, it usually shows an error for me in the first 5 minutes if I have my system clocked too high.
 

mitchafi

Golden Member
Mar 25, 2004
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Yes, I run 3DMark03 to test my overlcocks. If it passes then I assume it is stable for the most part. If it crashes any of my 3D games after a while then of course I set it back down a few mhz. You were probably the one who told me to use 3DMark03 as a stability test because I know someone on these boards did. I'm really not too concerned about the PC failing Prime95 because I haven't had any noticeable stability problems with programs I run. However, i'm going to try to up my VDIMM to 2.7 If I can figure out exactly which setting that is in bios. There isn't one specifically called VDIMM. Would it be DDR voltage?
 

Viper96720

Diamond Member
Jul 15, 2002
4,390
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That seems about right try increasing the the Tras to a 7 or 8. Trcd+ cas latency+2 for Tras
 

mitchafi

Golden Member
Mar 25, 2004
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hmm what the heck is tras. Prime95 ran for two hours straight until I closed it which is a definite improvement. Tonight I'll probably run it all night so I know for sure if increasing the DDR voltage fixed it. I was thinking about lowering my CAS to 2 from 2.5 also.
 

mitchafi

Golden Member
Mar 25, 2004
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76
thanks, very interesting, some of it was a bit confusing but for the most part I understood.
 

imported_Phil

Diamond Member
Feb 10, 2001
9,837
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So do you get the errors when using Fail-Safe BIOS Defaults, i.e. using SPD timings with the memory?
 

NesuD

Diamond Member
Oct 9, 1999
4,999
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mitchafi you are actually unpacking the iso and then trying to burn it. that is why you are seeing the img file. when you download it just unzip it once. If you are using winRAR the the iso will look like a winrar archive that you can unpack with winrar. I am thinking this is what you are doing since i made the same mistake last week. You are also probably seeing a boot folder that contains a boot.cat file and the memtest.IMG file. This is where you are going wrong. The file that you extracted these from is actually the ISO and that is what you need to point nero to. The file should be called simply memtest.