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New AthlonXP system, mediocre overclock

bacon

Junior Member
My new AthlonXP can't seem to FSB overclock beyond 142Mhz (1498Mhz) no matter what I do... was wondering if anybody had any suggestions.

Idle case temp @1498Mhz: 32C
Load case temp @1498Mhz: 35C
Idle CPU temp @ 1498Mhz: 49C
Load CPU temp @1498Mhz: 56C

I realize my temps are high, but there's not a whole heck of a lot I can do. The problem is really my case cooling; I have an old Inwin Q500A with a crappy fan at the bottom front, the PS fan at the top rear, and an additional case fan above the PS. Short of cutting through my steel case to add a blowhole to the top and a side hole on the CPU (I'm REALLY not a powertool guy), I can't really do much to change my case temperature. I'd welcome any recommendations, though.

I've tried raising my CPU and RAM voltages; the shuttle mobo only allows a 0.1v increase for CPU (to 1.85v) and goes up to 2.70v for the RAM. Neither one will let me overclock over 142Mhz FSB-- in fact, I can run 142FSB with no voltage changes at all. This is with my RAM at CAS2.5, not CAS2.

Here's my box:

Shuttle AK31 v3.1 KT266A mobo
AMD AthlonXP 1600+ (1400Mhz standard) with a Vantec 6035D HSF, 7000rpm fan
Arctic Silver 2 heaksink gunk applied to both CPU and chipset coolers
2 sticks of crucial 256MB PC2100 DDR SDRAM
Sparkle 350w power supply
3com pci ethernet card
elsa geforce256 SDR (being replaced with a leadtek GeForce3 Ti200 on thursday)
Adaptec 2940U2W PCI SCSI card
SB Live PCI
Matshita 7502 SCSI CD-R
IBM 9GB SCSI hard drive
Maxtor 30GB ATA100 hard drive
Seagate 80GB ATA100 hard drive
Creative IDE DVD-ROM

If my components are going to restrict me to 142Mhz FSB forever, does anyone know when the 5-line trace tape is coming out so I can unlock the multiplier? I don't feel too comfortable playing with defogger gunk on my brand new CPU.

Thanks for any suggestions, guys!!

(edit: When I say "can't seem to overclock", I mean that Prime95 spits out an error message during the torture test after a couple of minutes. It doesn't lock up hard or anything unless I go up to the 160+FSB range... I'd be pretty happy with 150 in the end.)
 
could be your ram, hard drives, SCSI card, and even the CPU... 😉

And why don't you unlock it with a mechanical pencil?
 
Well, I know it could be any of those things... was just wondering if anyone had run into it before... although the errors are in prime95, not general lockups, so I dunno.

How do you unlock an AthlonXP with a pencil? I thought the valley made that impossible.
 
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