e2140 wont boot at anything over 3.0ghz.

[CatchPhrase]

It POSTs at 3.0ghz but nothing after (tried 3.1 and 3.16) even with a voltage increase.
Running orthos now for 1 hour 15mins. Temps in core temp 0.96.1 hover at 48-55C loaded.
I manually set the ram timings at 5 5 5 15 and still nothing.
What do I have to do?

 

[Scottae]

System specs please

 

[CatchPhrase]

Gigabyte p35 ds3l
G.skill 800mhz ram.
evga 8600gt
corsair 450w psu
xp pro 32
western digital sata 160gb

 

[brencat]

Assuming you are at 375 FSB x 8, you might be at the CPU's FSB wall. Many of these chips hit a wall between 370 - 390 FSB. A few can do more than 400 FSB. Max core speed for most E2XXX is 3.1 - 3.2ghz +/- 200mhz, so you are definitely in that zone.

Just checking that you are running your RAM 1:1 with the FSB, correct? What vDIMM are you using, and what vcore for the CPU @ 3.0ghz ?

 

[nonameo]

it could very well be at its limit

 

[CatchPhrase]

Originally posted by: brencat
Assuming you are at 375 FSB x 8, you might be at the CPU's FSB wall. Many of these chips hit a wall between 370 - 390 FSB. A few can do more than 400 FSB. Max core speed for most E2XXX is 3.1 - 3.2ghz +/- 200mhz, so you are definitely in that zone.

Just checking that you are running your RAM 1:1 with the FSB, correct? What vDIMM are you using, and what vcore for the CPU @ 3.0ghz ?

I am at stock voltage, and what is vdimm?

 

[CatchPhrase]

stepping D
revision M0
if that means anything

 

[brencat]

vDIMM = DDR voltage, a.k.a. RAM voltage

GSkill is good RAM and should boot at the jedec spec of 1.8v. But that's not always the case. Try giving it 1.9v if you haven't already.

Also, you didn't answer...are you running FSBRAM @ 1:1 ?

You say you are at stock vcore now but in your first post you say you upped the vcore and still couldn't go beyond 375 FSB. How much vcore did you give it? My E2180 did 2.9ghz on stock vcore. After that, it needed ~ 0.04 extra vcore per 100mhz additional speed, almost perfectly linear.

 

[CatchPhrase]

Originally posted by: brencat
vDIMM = DDR voltage, a.k.a. RAM voltage

GSkill is good RAM and should boot at the jedec spec of 1.8v. But that's not always the case. Try giving it 1.9v if you haven't already.

Also, you didn't answer...are you running FSBRAM @ 1:1 ?

You say you are at stock vcore now but in your first post you say you upped the vcore and still couldn't go beyond 375 FSB. How much vcore did you give it? My E2180 did 2.9ghz on stock vcore. After that, it needed ~ 0.04 extra vcore per 100mhz additional speed, almost perfectly linear.

The ram is at 1.8v.
Yes to 1:1
Still stock vcore at 3.0ghz 2 hours orthos.
I set the vcore to 1.425 bios and still no boot at 3.2ghz.
So I should set the ram at 1.9v?
400mhz fsb = 800mhz ram, thats what its rated for.

 

[lopri]

Yeah. Some E2xx0's have an FSB wall shortly after 350FSB. Others do around 425~430FSB. I think the chip doesn't operate under 333 strap (200/266 only).

 

[chuckm]

Are you using stock cooling? 3 GHz may be all it's got, be happy with it!

 

[superstition]

Set you RAM to what it's rated for to make sure it's not a factor.

 

[Zap]

Originally posted by: lopri
Yeah. Some E2xx0's have an FSB wall shortly after 350FSB. Others do around 425~430FSB. I think the chip doesn't operate under 333 strap (200/266 only).

Perhaps it is a strap issue, but kind of reverse of how you described. Lower strap means tighter timings right? So, maybe the board is still trying to run tight timings, and is failing? I've had this happen with a Biostar TforceP965 board and 800MHz FSB chips where I was getting terrible overclocks, but a BSEL mod magically raised the limit.

Even an Anandtech article described this issue!

http://www.anandtech.com/printarticle.aspx?i=3111

Due to strap and chipset timing changes within the BIOS, we could not run our E2160 higher than a 333FSB without locking up the board. We did modify another E2160 to run natively at 1066FSB and did reach a final 9x385 FSB setting.

 

[nyker96]

I got a E2140 M0 running at 3.1@1.35v on IP35-E. I'm pretty sure this chip can do 3 or more especially M0 rev. I have an older L2 that does 3Ghz with 1.385v. Anyways try set vcore to 1.4v and raise FSB up past 375+, I think this should work.