Okay, my board normally runs a touch over spec-- my new 4600+ (2400MHz rated) runs at 2411-2414 MHz. Most boards do. My old Abit AV8 was worse... like 2040MHz on a 2000-rated CPU.

But I noticed occasionally STLCD (the VFD driver software I use) was reporting 25xx MHz CPU speed.

So I started staring at CPU-Z, and sure enough, it jumped up for one second to over 2500. Another second, it dropped to 2401.

Weird and disturbing.

Now I've owned the board for a while and used it with a 3200+ with no issue, and I see no obvious stability issues correlating to this behaviour.

But I'm concerned... is my board flipping out? Are the detection routines being thrown (I could see if it switched between cores mid-detection)

Mobo: ASRock 939SLI32-eSATA2, BIOS 1.10
CPU: 4600+ Manchester, stock clocks.

did you try updating the bios, setting stock settings, and then reseating the CPU
might help with the detection, and running it right

also is the bios currently reading the chip as itself, my 3100+ used to come up as a 1500+ XP on my old gigabyte board, needed a bios flash. sucks that it ran the CPU at 1300MHz

Not yet... it's detected as a 4600+ fine, the manufacturer says that all BIOS versions support the CPU (it was a late-entry board), and it runs in the correct speed space (about 2400MHz) most of the time.

The oddity was the transient report of speeds above the range. 2410, 2415, even as high as 2425 I could see... but 2530 was pretty obviously wrong.. and I think another time I saw 2470 or maybe 2570 on the STLCD screen.

OTOH, the Core Temp utilitly logs temperature and speed, but its number NEVER changes, not by a single hundredth of a MHz. Of course, it could be that it's only sampling once. The docs don't mention.

Okay, it's official. STLCD is bluffing. It announced "3140MHz" just now XD Since I know the CPU is multiplier-fixed, and the memory will NOT make it past 230 or so, I'm pretty sure we're looking at a buggy calculator

ASROCK is not a "Top of the line" board maker by any means, so I am sure it has a few "Bugs" that slip by now and then, you get what you pay for!


As long as its stable when booted, i would just ignore it..maybe a bios update later will clear it up.

How fresh is that OS?

Installed in mid-October, but I had to install the "multiprocessor PC' driver last week when I put the X2 in... I wonder if that can cause weirdness.

Any time you change hardware, even sometimes a CPU, it can effect the OS...however, I would also be looking at the PSU in your case.

Check out your voltage rails, the X-2 draws alot more power than a single core!

Run the OCCT "Stability" test, and at the end it will give you a graph with how much "Ripple" its shows under load.

They should save in a folder somewhere on your PC, it wil pop up one of the charts automatically(Temp I think) but you may have to dig around for the others in the OCCT folder, or wherever it saved too.

I had that with my AV8, BIOS default was 204MHz FSB.