I was on the fence about the 650i mobo choice. I looked at p6n sli. Everything is good except for the overclocking options. I looked at p5n-e sli. It overclocks great, but lacks proper cooling. Read through a thread of 30-something+ page. There's another with over 100+ page at anand I'm gonna read.
2 things about the p6n: odd placements of floppy & cpu power. My p5n-e's fdd is farther & with that case, the floppy cable can't be connected if a full-size pci card is installed.
Good o/c for a dad's pc. I reset my old c2d setup to default for my family pc. It's rather silent.
About the Floppy drive, I didn't even connect one, and disabled it in the bios. Before buying the MB, I thought it was kinda weird placement, but I also thought it would still work out great to hook one up when I needed it (outside the case), which would be a bios update. And if my dad even need anything off floppy, he could use his laptop USB floppy drive to read off them.
Turns out later, when I was looking for bios update, it seemed that the MB had the latest on there. And one last thing, I ended up reading the instructions. MSI really does not want me to use the floppy to update the bios. They want you to use the floppy to get to DOS, but you have 2 choices from there.
1.) Using a boot up disk with loading a ram-drive into memory. So you copy the flash.exe and bios to memory (ram drive), then run it.
2.) Or.... having the flash/bios files on the HD in FAT32 format, and then run off the HD.
It seems theres a 3rd option, since the startup boot sequence can run of a USB drive.
So... I guess I won't be really needing the actual floppy drive hooked up at all. The midtower only has 1 3.5" bay, which I ended up using for a multi-flash card reader that came off the old system which hooked up to the USB header.
I was reading an Intel forum: the Intel mod/dev locked the thread when a non-Intel dev asked for the core temp calculation. It might have to do with the inaccuracy of speedfan, core temp, etc. cuz the dev's may not know the formula.
If accuracy is your thing, use Intel's TAT. Google is your friend.
The one thing that caught my eye on the fixes was:
Version 0.95 - 17th March, 2007
- Fix: Revision F Turion/Turion X2 detected wrong.
- Fix: Core Temp fully loads one core on a dual core AMD CPU.
- Fix: Core Temp crashes on Dual Core Opteron 200 series systems.
- Fix: Core Temp misdetected certain Dual Core Opteron CPUs.
- Fix: Must set Core Temp to run as Administrator in Vista.
- Fix: Can't see Core Temp GUI if Core Temp was last closed minimized.
- Fix: C2D L2 rev. report very low temperatures. (Tjmax to 100C) - Fix: Core Temp reported wrong temps after a while. (Driver conflict)
- Fix: Core Temp reported Max VID on Intel CPUs. (Now shows current)
Kinda wonder if that (Driver conflict) might be the case with speed fan. Accuracy would be nice, I mean why be mislead by, at the most, 15C? I just want to know what is more accurate. I seem to trust TAT more, but the thing about it is, it seemed to be more designed for the mobile processors just reading the help file, and trying to find more info on TAT, which is kinda hard to find. Even looking for an update version of it.
I saw one post on an E4300 reaching 90C before shutting down, so I'm guessing CoreTemp might be pretty close in determining the max Tjunction temp of 100c, though, not 100% sure, since I feel as though the max temp of 85c more realistic for desktops.
. o O (I guess as long as the PC works OC or not is what really matters)
Finally got around (okay, I'm lazy) getting the CPU-Z info off:
I was told of the CPU section that you can still OC with speed step enabled. At first, I thought no way, why would that OC guide for C2D have you disable it.
So, I enabled EIST and C1E, and ran Prime95 for 6 hours test.
Turns out it can be done:
You can see CPU-Z is reporting 2.4 ghz OC
When Prime95 is stopped, the CPU speed drops to 1.6ghz.
I found that kinda amazing, but what is really weird, it just jumps from 1.6ghz to 2.4ghz when the CPU goes into a load. That's quite a shift on ghz on C2D systems running at 3.2ghz though, namely the E6600. With it's speed step running, it still drops it to 1.8 I think. Still quite a hop from that to 3.2. I would think the system would freeze.
I was hoping to see a temp drop, but it seems the room it was in got abit warm (80-81F running prime95 for 6 hours) since the AC didn't kick on, or I should say the living room was at 78F, so the AC won't kick on.
Other then that, temps are basically similar if not the same even after a cool down for about 10 mins. I suppose I would have lower temps to show for it, if the room was at least 76F like I had done on the previous test above..
One last thing to mention, since I use a P3-kill-o-watt meter, there was a slight difference on idle consumption.
E4300 - with Speed Step off - Idle 113 watts
E4300 - with Speed Stop on - Idle 107-108 watts
E4300 - will not matter off/on - load @ 2.4ghz 160-162 watts