Bad CPU?

[sgrinavi]

I put a E8600 in the x48 Asus system in my sig (brand new part). Mount it as usual using AS5, I fire it up and get the CPU over temp warning. No big deal, go to BIOS, reset everything back to stock and try again. Still over temp, reads 100 degrees in the hardware monitor (the voltage was under 1.2)

I take it apart, clean the TIM, re apply, reseat everything and very carefully make sure that everything is tightened down evenly. Fire it up and, again, it's over-temp. I also noticed that the other temps in the hardware monitor were screwy; they were actually negative

One more time, take it apart, clean, remove CPU and start from scratch. Again I get the overtemp. Hoping it's the crappy hardware monitor I go to windows, and within about a minute the system powers down.

This thing is going from room temp to 100 degrees in time it takes to boot to the bios. 15 seconds.. maybe?

I purchase a new XIGMATEK S1283 install it, take the system down to bare bones, 1 stick of ram, 1 video card and the PSU. No change. I reset the BIOS by removing the battery just in case, but still, no change.

I put my E8400 back in and BAM, 32 degrees in the hardware monitor.

SO, is it a bad chip or did I miss something?

 

[Xed]

Broken temp sensor?

 

[OCGuy]

What are you using to see these temps? You say "hardware monitor," but I dont know if you mean the actual program or you are using that in a generic sense.

 

[sgrinavi]

Hey Xed: you mean on the CPU? I think the MB is OK as it works with the E8400

Ocguy: I am reporting temps from the crappy hardware monitor in the BIOS, I know it's not accurate, but the only time I tried to go to windows I got booted, presumably from being over temp, before I could start anything.

Did you have any trouble with yours? what board are you running?

 

[C42]

Perhaps try updating the bios

 

[VirtualLarry]

Time to RMA that CPU, methinks. Hope you didn't overclock it yet.

 

[Xed]

Yes, on the cpu. Also, see what realtemp shows instead of the bios.

If you're sure it's mounted properly, a cpu at 100c should make your heatsink quite toasty (and it should be shutting itself off)

 

[sgrinavi]

Perhaps try updating the bios

I just did looked at that a week ago, it was already the newest one.

Time to RMA that CPU, methinks. Hope you didn't overclock it yet.

LOL, no, I can't get even close to that far along. This thing shuts down in the time it takes to get to windows,

Yes, on the cpu. Also, see what realtemp shows instead of the bios.

I wish I could get that far, it shuts down right about when windows starts.... I only tried it once.

If you're sure it's mounted properly, a cpu at 100c should make your heatsink quite toasty (and it should be shutting itself off)

I reset it several times with my tuniq the took that off and put a new S1283 on it... no change. When I put the E6400 back on everything is fine.

 

[Xed]

Is your heatsink getting very hot? Maybe the ihs on the cpu is just awful and it's not making good contact

 

[sgrinavi]

Originally posted by: Xed
Is your heatsink getting very hot? Maybe the ihs on the cpu is just awful and it's not making good contact

I dunno.. the TIM did not spread out as far as it usually does.... I wonder if it's concave?

 

[LOUISSSSS]

u sure u didn't install the heatsink wrong? CPU's rarely have these kinds of problems

 

[sgrinavi]

Originally posted by: LOUISSSSS
u sure u didn't install the heatsink wrong? CPU's rarely have these kinds of problems

If I did install it wrong then I installed two of them wrong a total of 5 times LOL...

I just held a straight edge against it, you can actully see just a little light passing under it in the middle and if you look at if carefully you see where the HS left scuffs in the metal in a distinct pattern around a low spot in the center.

It's concave, but is that alone enough to take the temps off the charts?

 

[LOUISSSSS]

all cpu IHS's are concave, that is what the TIM is for, to fill in any gaps and to expand when heated up...

 

[Cogman]

*edit* Nm. your MB is fairly new. If you have a spare CPU lieing around you might pop it in and try flashing the BIOS to the newest version. It is possible that the motherboard is overvolting for reasons unknown.

 

[Markfw]

Originally posted by: Cogman
*edit* Nm. your MB is fairly new. If you have a spare CPU lieing around you might pop it in and try flashing the BIOS to the newest version. It is possible that the motherboard is overvolting for reasons unknown.

Good point... Without overclocking, try manually setting the vcore in bios. Set it to 1.2 IMO. Post back results.

 

[Dadofamunky]

Originally posted by: Markfw900

Originally posted by: Cogman
*edit* Nm. your MB is fairly new. If you have a spare CPU lieing around you might pop it in and try flashing the BIOS to the newest version. It is possible that the motherboard is overvolting for reasons unknown.

Good point... Without overclocking, try manually setting the vcore in bios. Set it to 1.2 IMO. Post back results.

I may be having the same issue with the Intel system in my sig! I'm gonna give that a shot too.

OP, you have my sympathy. Especially since you have an 8400 running so well in the same mobo. Sheesh.

At least I have the excuse that I had to use the thermal paste that came with my Thermaltake Ruby Orb. The stuff does not seem to do a good job, so I'll be getting some Arctic Silver next week.

 

[sgrinavi]

Originally posted by: Cogman
*edit* Nm. your MB is fairly new. If you have a spare CPU lieing around you might pop it in and try flashing the BIOS to the newest version. It is possible that the motherboard is overvolting for reasons unknown.

I put the E8400 back in and it works fine and I have eliminated the question of the HS being bad. It is the chip or the board not liking the chip. I

I found a beta bios and flashed it. The one element that makes me hesitatant is that people are running the same set-up stock, out of the box, without any issues. But I agree, it is worth a shot.

Originally posted by: Markfw900

Good point... Without overclocking, try manually setting the vcore in bios. Set it to 1.2 IMO. Post back results.

I checked the voltage it was below 1.2, but I will try setting it manually, that would make sense. I will try that.

 

[Keysplayr]

Originally posted by: Cogman
*edit* Nm. your MB is fairly new. If you have a spare CPU lieing around you might pop it in and try flashing the BIOS to the newest version. It is possible that the motherboard is overvolting for reasons unknown.

2nd ^

Sounds like the most plausible explaination. Definitely worth trying this out.

 

[sgrinavi]

Originally posted by: Markfw900

Originally posted by: Cogman
*edit* Nm. your MB is fairly new. If you have a spare CPU lieing around you might pop it in and try flashing the BIOS to the newest version. It is possible that the motherboard is overvolting for reasons unknown.

Good point... Without overclocking, try manually setting the vcore in bios. Set it to 1.2 IMO. Post back results.

BINGO... thanks guys - Set the voltage to 1.18 - with a 3400 FSB it is still warm at 42 degrees idle, but much better than it was.

Again, thanks.

 

[Markfw]

Originally posted by: sgrinavi

Originally posted by: Markfw900

Originally posted by: Cogman
*edit* Nm. your MB is fairly new. If you have a spare CPU lieing around you might pop it in and try flashing the BIOS to the newest version. It is possible that the motherboard is overvolting for reasons unknown.

Good point... Without overclocking, try manually setting the vcore in bios. Set it to 1.2 IMO. Post back results.

BINGO... thanks guys - Set the voltage to 1.18 - with a 3400 FSB it is still warm at 42 degrees idle, but much better than it was.

Again, thanks.

Thats what I thought ! Glad it worked.