A7N8X-E Dlx, Mobile XP 3000, Corsair 3200XL

[Pohemi]

This AMD AthlonXP Mobile 3000+ processor I just bought is supposed to have a stock clock speed of 2.2 ghz. In the BIOS on my Asus A7N8X-E deluxe, it registers the cpu external clock speed(FSB) at 133, and the cpu multiplier as 14.0. This only comes out to 1.8 ghz or so. I've tried raising the vcore from stock 1.675 up to 1.75 and I can't even raise the FSB from 133 to 140, even when I drop the cpu multiplier down to 11.0 or 12.0. As soon as I save and exit the BIOS, the system reboots, makes it about half way through the POST, and then just shuts down. What the hell is wrong with this chip?? :|



AMD AthlonXP Mobile 3000+
Asus A7N8X-E Deluxe
Corsair TwinX1024-3200XL
WD Raptor 74gb SATA drive
Maxtor 250gb 16mb cache SATA drive
BFG GeForce6800 Ultra OC
Ultra X-Connect 500W psu
Thermaltake Xaser III
Windows XP Pro SP2

 

[mechBgon]

Check the third and fourth photos on this page and see if that sheds any light on the auto-shutdowns.

Another possibility, and don't take this too personally, is that your flashy modular PSU is a piece of junk underneath the fancy wrapping Additionally, you've got a very power-demanding video card in there, AND your board does not have an ATX12V cable to help get lots of 12V to the board. All the 12-volt power on an A7N8X-E Deluxe is carried by one single wire in the main ATX cable. At any rate, you can easily test whether this is the issue by throwing in an older, low-powered video card as a fact-finding step.

Also, those memory modules are made for 2.75 volts. Don't be shy, crank it up, AUTO is not the right setting for those bad boys

Other than that, it is quite normal to have to set the FSB yourself on most nForce2 motherboards if your CPU runs a 333 or 400 FSB.

 

[Pohemi]

That may be a possibility(the PSU) but I kind of doubt it. Have you seen any reviews for the Ultra? I've used it temporarily in other power hungry systems and never had a problem. I do understand about the single 12V line to the A7N8X-E however, and will keep that in mind. I had previously used it with a Gigabyte GA-K8NSNXP-939 which had the DPS.

As for the DIMM Voltage, I had raised it to 2.8. I know these memory modules are factory tested at 2.75.

BTW mechBgon....thanks for the link to the photos. I might not be a computer engineer, but I have built a few systems and I'm not THAT stupid.

 

[Lithan]

what multiplier options can you select? My 2600+ xp-m was stuck at 5-12.5, Anything else caused no post.

 

[Fern]

Put Motherboard Monitor 5 on there and monitor the voltages and temps.

Can you get it to boot at 2500+ speeds (11 x 166)?

That vcore seems damn high for a mobile. I haven't seen much info on these 3000+. The other mobiles run at 1.45 (stock)

Fern

 

[Jeraden]

I have the same motherboard and a mobile 2400+ chip. My MB didn't recognize the chip at all (maybe I have an old bios or something), so I just set all the stuff by hand. 1.625 voltage (I believe thats what it defaulted to, no clue what the actual default is on this chip), 11x200 speed settings. Using Corsair CMX512-3200C2 memory, but running it at cas2.5 instead of cas2. I've tried in 2 different PCs to get this "cas2" memory to actually run at cas2 but it won't do it. Been running very stable, Nvsystemutility currently reports 43C cpu die temp and 24C system temp.

 

[Pohemi]

Maybe it's just a random bad processor. As far as I'm aware, this board won't even boot with a chip slower than 1 ghz. Well...my system boots and the post screen tells me my cpu speed is 798 mhz, as does system properties in Windows. I've tried using all the multipliers between 10 and stock 14, and I just can't seem to raise the FSB higher than 142. I may just RMA the chip.