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| Thread ID: 44737 | 2004-04-28 23:57:00 | Athlon XP2800+ CPU multiplier | wattie (613) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 232735 | 2004-04-28 23:57:00 | I've upgraded my system to a Gigabyte GA-7N400 M/B with an Athlon XP2800+ CPU. Bus is set to 166Mhz and multiplier defaults to 12.5 giving me 2.08GHz (SiSoft Sandra checked). I understand this CPU should run at 2.24-2.25 GHz and the nultiplier at 13.5. However I can't seem to change it either with the M/B jumpers or the software supplied overclocking utility (EasyTune 4). Am I missing something? Or do I have a CPU with a locked multiplier which I've heard about but not seen before. I'd like to get that extra grunt out of it....any help appreciated. Thanks in advance... | wattie (613) | ||
| 232736 | 2004-04-29 00:24:00 | See whether anything on this thread (pressf1.pcworld.co.nz) helps | Jester (13) | ||
| 232737 | 2004-04-29 01:49:00 | Well....this could be bad!! Tried following that thread and set my BIOS FSB to 200MHz and changed the jumpers to 11.5. Booted up and the system was running at 2.5GHz!! Stable for some time, SiSoft Sandra confirmed this but multiplier still at 12.5 (hence 2.5GHz system speed) Then it froze and now won't reboot at all. CPU temp was a bit high (56 deg) and there was no burning smell...could still touch the heatsink comfortably) ...need help now! | wattie (613) | ||
| 232738 | 2004-04-29 04:27:00 | 56 degrees isnt too high, however it may have been the resultant fsb speed 400mhz that wasn't compatible with some of your other components Set the jumpers back to automatic, or ensure that you have the white switches in the correct on positions, not round the wrong way (the manual is a bit vague as to what 'on' and 'off' looks like - I initially set mine all vice versa and it didn't boot). If it doesn't boot with set to auto - use say a low multiplier such a 6, which will run at a slow MHz but at least boot. Then once booted again (hopefully), go into BIOS and change the fsb back down to 166. Then try 13.5 multiplier x 166 = 2250 - which is what the 2800's run at. J :D |
Jester (13) | ||
| 232739 | 2004-04-29 05:27:00 | The Athlon XP 2800+ Barton Core (the latest) runs at 2.08Ghz! The Thoroughbred core 2800+ ran at about 2.13Ghz so I think your original results in SiSoft Sandra were correct. Try and change your setting back to original and hopefully you won't have any more problems. | Davesdad (923) | ||
| 232740 | 2004-04-29 05:32:00 | Does sisoft sandra say you have a barton or thoroughbred core??? Because that'll be the key. If you look at this page (www.upgradeware.co.nz), you'll see only the thoroughbred core runs at 2250MHz, with 333MHz FSB and 13.5x multiplier. The barton core which it sounds like you might have, runs at 2083MHz with a 333MHz FSB and 12.5x multiplier. |
PoWa (203) | ||
| 232741 | 2004-04-29 05:39:00 | Thanks Powa - I've spent all this time since Dave'sDad's reply trying to find where I saw the info in the link you posted, thought I made a mistake. Must save that link to bookmarks! | Jester (13) | ||
| 232742 | 2004-04-29 06:18:00 | Thanks...if I'd known that 2.08GHz was the correct speed earlier I wouldn't have mucked with the FSB. The computer still won't boot so I can't get back into the BIOS. I've changed the RAM around, cleared CMOS and reset all jumpers with no joy. I can't believe I've cooked something tho...there was no burning smell and the CPU didn't get hot. Any other ideas would be appreciated... | wattie (613) | ||
| 232743 | 2004-04-29 06:48:00 | Crikey :p In the motherboard manual you have, doesit say you can try taking the cmos battery out for 30secs to reset it? Isn't the motherboard dual bios anyway? Have you checked all the dip switches are set back to default, and auto? |
PoWa (203) | ||
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