good o/c skt 754 mobo required!

[rich_225]

hi all, i have just bought a skt 754 2.8m chip. is this any good for overclocking? can anyone recommend a good o/c'ing motherboard? what about heatsink/fan that isn't too noisy (& preferably cheap!) have i made a big boob? as originally i wanted an xp2.5-2.8-m chip. how much poorer is the mobile sempron? i think i have bought?

[kempez]

hi all, i have just bought a skt 754 2.8m chip. is this any good for overclocking? can anyone recommend a good o/c'ing motherboard? what about heatsink/fan that isn't too noisy (& preferably cheap!) have i made a big boob? as originally i wanted an xp2.5-2.8-m chip. how much poorer is the mobile sempron? i think i have bought?

I think the DFI LANPARTY UT 250gb supports the mobile chips with a BIOS update, although I'm not 100% certain. Grea OC'ing board.

As for heatsink and fan: XP-120 + a low noise fan

[sawyen]

uhh... tough luck m8... semprons are pretty slow compared to their XP-M siblings. The performance gap is largely due to their ULTRA small L2 cache... 256KB... sheesh, what a joke..

Any decent ABIT or DFI board based on K8T800Pro or NForce3 250gb should work fine. 754 Semprons should benifit from the integrated memory controller... but dun expect a miracle..

[rich_225]

doh! any other HS/fans? the x-120 is £39!!!! just 4 the HS not including delivery!££!! eek!

[rich_225]

hang on, r u saying that as it's a mobile chip it might not be compatible with anyold skt 754 mobo?

[rich_225]

what sort of o/c's do u think i should expect? 3.2, 3.4?

[Smokey21]

The DFI 250GB is really the only decent option of 754.

[sawyen]

You pay for wat u get m8... XP-120 is a veyr good HSF... but if ur a little on the budget end.. Akasa Evo33 should be fine.. Gigabyte 3D cooler Pro (aluminium) is pretty good as well..

[Rave]

uhh... tough luck m8... semprons are pretty slow compared to their XP-M siblings. The performance gap is largely due to their ULTRA small L2 cache... 256KB... sheesh, what a joke..

This is, not to put too fine a point on it, crap. The smaller cache hardly affects the performance at all in most apps. In the vast majority of benchmarks a 128KB cache Sempron is within 10% of a 1MB cache A64 at the same clockspeed- often the difference is only 2-4%.

rich_225, there's no need to make three posts in a row. Just edit your original post if you want to add more information or ask more questions. If it's a Sempron 2800, then at actually runs at 1.6GHz AFAIK; with a multiplier of 8 it's probably going to be the board that limits your overclock but you may be able to get it to 2.4GHz or more. OCing is all down to luck really.

[[DW]Cougho]

Socket 754 Sempron = downgraded A64 = good. It is not a throughbred-based sempron converted to S754 which would be bad.

And i have a DFI NF3 UT250 board and its superb, id definately recommend it.

[BUFF]

ABIT NF8 is a very good overclocking 754 board too.
£54 at Scan http://www.scan.co.uk/Products/Produ...oductID=163201

[skuzgib]

I'd recommend the DFI TBH.

rich_225, there's no need to make three posts in a row.

But then he won't get his free postage as fast!

[rich_225]

thanks. i've opted for an msi k8v fis2r £25 new on ebay + an arctic cooler (tc) opinions?

[BUFF]

That's a regular K8T800 chipset board not a Pro?
No AGP/PCI locks then so don't expect to achieve a very high system ref. clock.

OK for £25 though.

[oralpain]

Never seen a socket 754 mobuile sempron and I'm fairly sure thats becasue they don't exist.

I have used mobile A64s with these motherboards:

AOpen AK89 MAX
Chaintech VNF3-250
DFI NF3-250GB UT - probably the only one that will work with the rev E chips and it will need a recent BIOS.

Moble chips have no heatspreader, so you must take the height differentail into account when slecting/mounting a heatsink.

EDIT: Confirmed that mobile S754 semprons do exist.

[rich_225]

lol yes they do exist. shame the mobo is crap, oh well, if it works maybe next upgrade. if the agp not locked what does it go up with? the hs/fan i got says it comes with a spreader. can i use this instead?