Help with OC v2dp

Jetway Jetway s755max sis755 chipset mo...
September 29, 2009 at 01:57:13
Specs: Windows XP, Sempron 2400+/768mb pc2700

I bought this rig off ebay a couple years back and I think they OC'd it as running very hot (50C idle). Im exploring the whole self-build thing and OCing so would like some advice if possible!

My rig:
Jetway V2DP
Sempron 2400+
768mb pc2700
and other stuff - agp gfx, wlan pci, 3xpata hdd,1xCDrw drive.
Have only 1 fan for the CPU none for case (could be the problem)

Anyways, my BIOS says i have a sempron 2400+ running at 133mhz, BUT HWinfo says its an AMD athlon 1650 (does this even exist?) running at 1.67Mhz

Question is, is it OC'd? If not, can I OC it further? I can post more info if required. Thanks in advance, David

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September 29, 2009 at 05:05:42
Have you read the motherboard manual ?

Are you using the latest BIOS ??

Are you 100% sure it is a Sempron, they use a 166fsb ??

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September 29, 2009 at 08:08:53
its running 166mhz x 10 multiplier, sorry I said that wrong! BIOS reports an AMD sempron 2400+, theres a sempron sticker on the case (tho thats not exactly proof) but when I run CPU-Z I get AMD Athlon, if i run HWinfo i get athlon xp 1650.
Oh and they report it as Prosussor not Processor... google reports it is a common mistake though

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September 29, 2009 at 09:54:35
Maybe updating the BIOS would help ??

Though Sempron are not great overclockers, if you can find a cheap ATHLON it may give a little more, but lets face it a 5/6 year old PC is uneconomical to upgrade/update..

Regards 50 temp it could be you need to clean off the old thermal paste and re-apply on the CPU Heat Sink..

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September 29, 2009 at 14:05:21
What speed do you expect it to run at?? 2400+ is the model number, not the speed. Your CPU is supposed to run at 1667MHz (10 x 166MHz). If it's reported as 1650MHz, it's because your board runs the frequency slightly under spec. Instead of running 166MHz at 166.666MHz, it's runs it at approx 165MHz. It's no big deal. And it's being reported as an Athlon because you need a BIOS update. Regardless, it IS an Athlon. The only difference between an Athlon XP & a Sempron is the name & the FSB speed. *Most* (but not all) Athlon XP's ran at 133MHz (266MHz FSB). Your Sempron runs at 166MHz (333MHz FSB). The faster FSB makes it a better performing CPU. The Sempron 2400+ is basically just an Athlon XP 2000+ (12.5 x 133MHz) that's been reprogrammed with a higher frequency (166MHz) & lower multiplier (10x). The Sempron 2400+ is faster than the AXP 2000+ even though they run at the same speed...the FSB is what makes the difference.

And although your CPU temp is higher than what most would consider normal, it's no where near the danger zone. The likely problem is that you installed the heatsink/fan incorrectly. Both the top of the CPU & bottom of the heatsink should have been thoroughly cleaned prior to installation, then a tiny dab of paste about the size of a grain of rice should have been applied to the CPU core ONLY. The paste should have then been spread thinly & evenly over the core. Once that's done, pop the CPU in the socket & lock it down, then install the heatsink making sure it's not backwards.

These should help:

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September 29, 2009 at 14:09:11
BTW, the Jetway V2DP isn't a very good board due to the crappy VIA chipset it's based on. You *may* be able to overclock it somewhat, but since there's no way to lock the AGP/PCI, the results would be very limited. I doubt you'd notice much of a difference, if at all.

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September 30, 2009 at 01:42:06
thanks for the detailed info guys!
Ive done my reading now, just wondered what u guys thought:
Im thinking about overclocking it to about 175 FSB, but Im worried this might affect my ddr333mhz ram, its samsung. and i dont want to fry my gfx card as this will probably put me at 35mhz pci, and i believe this affects the agp slot too. any thoughts?

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