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Help with E8600

E

Ed259

n00b
Joined
Aug 27, 2008
Messages
9
Hi guys,

I'm new on this forum.

I just bought and installed an Intel C2Duo 8600 (3.3 Ghz).

I'm running it on an ASUS P5B-deluxe mobo. I've downloaded and installed the latest BIOS for this board (version 1236 of 8.5.2008 - claims to "support new CPUs"). Doing that removed the annoying BIOS message that I got during boot-up that the CPU was not running at full speed.

Yet this CPU still seems to not be running at full speed, that is if I understand the CPU-Z figures rightly.



It has the core speed at 2000.1 Mhz and the multiplier at 6. Surely these figures aren't right for the E8600. Shouldn't they be quite alot higher, even at stock?

Does anyone know what may be wrong?

Thanks alot :)

Cheers, Ed
 
Disable all the power saving crap, EIST, etc. in the bios.

Make sure multiplier is set to Auto or force it to 9.
 
Your CPU is throttling back when not in heavy use.
Normal behaviour if speedstep is enabled, thats its job.
 
Thanks guys. I thought I might have had a duff CPU and would have to send it back to Newegg.
Dnottis I did what you said and changed the "CPU ratio setting" (under "CPU Configuration" in my BIOS, v.0261 American Megatrends) to from 6.0 to 9.0.
When I booted up and tried CPU-Z for about 1 second only it showed Core speed = 3000.1Hz and multiplier = x9, but then they both fell to 2000.1Hz and x6 and stayed there.

I don't know in my BIOS how to disable this power-saving function.

Thanks guys.
 
The features should be listed under EIST (Enhanced Intel SpeedsTep) and C1E. However, you should reconsider leaving them on as the performance impact is nonexistent and you'll save a bit of power as well.
 
this is stuff built into the cpu that turns the speed down (by lowering the multiplier) when the cpu is not in heavy use. you can diable this stuff in bios, i am not familiar with the asus bios. in order to be familiar with it, i would have had to have owned an asus board. right. anyway, it might not all be in the same place, so disable stuff like c1e, eist, "cpu power saving feature", stuff like that. your multiplier should be at 10 with a 8600.
 
The Intel E8600 has a 10x multiplier.

E8600stockcropped.jpg


From here: http://www.xcpus.com/GetDoc.aspx?doc=49&page=1


The E8600 may be the last great Core 2 Duo CPU as Intel prepares the new line of technology with their I7 CPU.
 
Thanks guys! I've now got this bad-ass CPU running steady at 3333 Mhz with a x10 multiplier as it should be.
Now bearing in mind I'm an overclocking noob, can anyone give me some simple fool-proof instruction on what to tweak in my BIOS to get it up to 4Ghz on the stock HSF (I've got an Arctic Freezer coming in the mail).

Cheers alot, Ed
 
Ed259 said:
Thanks guys! I've now got this bad-ass CPU running steady at 3333 Mhz with a x10 multiplier as it should be.
Now bearing in mind I'm an overclocking noob, can anyone give me some simple fool-proof instruction on what to tweak in my BIOS to get it up to 4Ghz on the stock HSF (I've got an Arctic Freezer coming in the mail).

Cheers alot, Ed
Click to expand...

There is a sticky in the OCing forum. Read that as it has helped a lot of ppl who are new to ocing. It helped me tremendously.
 
set FSB to 400Mhz, leave everything else on Auto and reboot! Bam easy cheesy 4Ghz.

Thats probably ALL you need to do!

Ok you MIGHT need to get give it a little extra vcore, but probably not.

To be on the safe side... go read some overclocking guides. you noob! :p

Make sure you set the dram:fsb ratio as 1:1 (sometimes called 2:1 depending on BIOS), so at 400Mhz FSB your ram is at ddr2 800.
 
Thanks guys :)
I just busted my second Arctic Freezer Pro HSF. Those damned little plastic nodes at the bottom of the legs always get bent out of place and then the legs won't fit into the holes. The stock HSF has the same set-up but it went right into place, no worries. So I'm on the lookout for a different HSF. Guess I'll ask in the cooling section about that. Cheers!
 
EIST is slowing your CPU down to save power. I'd recommend keeping this on. Your CPU is fine, and will switch back to full speed when necessary.

edit: For heatsink, Xigmatek 1283/1284. They're lighter than a TRUE, but perform about the same.
 
Only downside is that EIST can make an overclock unstable.
I cannot use it otherwise I have to lower my overclock.
 
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