Name: 2nazty Date: January 9, 2007 at 21:19:56 Pacific Subject: cant get proper speed from AthlonXP OS: Windows XP Pro CPU/Ram: Athlon 3000 XP Model/Manufacturer: 1Gb DDR400 Infineon
Comment:
Hi
I have a asus A7V8X-X motherboard, 2 512Mb DDR400 sticks of Ram and AMD Athlon 3000XP cpu, exact info on my cpu from AMD is:
The problem I am having is even though this chip is supposed to be running at 2.167GHz, I cant get it even close to that, the best I can get from it is 1.55GHz thats with me setting the cpu external frequency (Mhz) to 119/40, that changes my memory frquency to 396Mhz, for some reason I can not manipulate the CPU frequency muliplier, anything other than 13x will cause machine to hang, altering core voltage doesnt help, simply selecting 2.167Ghz speed in bios causes machine to hang as does even selecting 1.7GHz wont work. Is my CPU damaged? or is this mutiplier locked and thats why i cant get the factory rated speed? any help would be appreciated
When you are doing 119/40, the AGP and PCI bus is way above standard which will cause problems for your device such as video card, modem, sound card... etc. Also when you set your FSB to 119Mhz, your RAM should also be running at 119Mhz(338Mhz DDR) instead of 198Mhz(396Mhz DDR). If that is the case, then change the CPU:RAM from 1:1.66 back to 1:1... Otherwise, if you set the FSB to like 133Mhz and having 1:1.66 CPU:RAM implies RAM running at 220Mhz (440Mhz DDR), then that will cause problems...
TMP-Man
Asus P5P800-SE PAT P4 506 @ 4009Mhz 1.3625v Thermaltake CLP0024 w/ 1700RPM 92MM + AS5 2GB OCZ 2-3-2-5 DDR400 120GB/300GB 7200RPM HD Leadtek 7600 AGP 590/1600 VF700 ALCU AS5
The multiplier on your CPU is locked & the setting cannot be changed. Look in your manual for the location of a FSB jumper & change it accordingly. And as TMP-Man mentioned, you should run your CPU:RAM at a 1:1 ratio, so even though you have DDR400, it should be set to DDR333 speed (166MHz)
thank you for the responses, I am not sure on a few things so please bear with me, you say to set my CPU:RAM ratio at 1:1, can you tell me which parameter in BIOS does it because I havent seen one that describes CPU:RAM speed my choices are the following:
- CPU Speed (manual,1.3Ghz,1.7Ghz,2.17Ghz,2.6Ghz) * the only settings that work are either manual or 1.3Ghz, everything else hangs
- CPU Frequency Muliple (5.0x to 18.0x) * the only setting that works is 13.0x, everything else hangs
- CPU External Frequency * this I can increase to 119/40 which gives me 1.55Ghz according to windows, anything more causes system to hang
-Memory Frequency (auto,200,266,333,400)
- CPU VCore Setting (auto,1.650,1.700,1.750,1.800,1.850) * this doesnt seem to help, tried all voltage settings doesnt make a diffrence
this board is a asus A7V8X-X, I cannot locate a jumper for setting FSB speed, in the top corner by the ATX power connector, there is a bunch of FSB jumper setting info silkscreened onto the motherboard, SW1 to SW6, but I cant find the actual header to make the adjustment, it also lists at the bottom that if you leave all jumpers off its in jumper free mode, so I assume that means you can change the speed in BIOS, sorry for the dumb questions but if someone is familiar with this motherboard and the AMD Athlon 3000XP cpu that can guide me through this that would be great
unfortunatly that did not work, caused system to hang heres what I selected:
CPU SPEED: manual CPU FREEQUENCY MULTIPLE: 13.0x CPU EXTERNAL FREQUENCY (MHz): 166/33 MEMORY FREQUENCY (MHz): 333 CPU VCORE SETTING: manual CPU VCORE: 1.650V CPU LEVEL 1 CACHE: enabled CPU LEVEL 2 CACHE: enabled PS/2 MOUSE FUNCTION CONTROL: enabled USB LEGACY SUPPORT: auto OS/2 ONBOARD MEMORY >64M: disabled
any more idea anyone????? Im wondering if the CPU is damaged? does that seem likely or is this more likely a motherboard problem?
I tried setting to 165Mhz as you instructed but it hanged :( as far as the jumper vs jumperless mode I cant seem to find where they FSB jumpers are??? there is info printed on the top corner for switch settings but I dont see any dip switches or even a pin header for making that adjustment?
Don't confuse 333DDR with 333 MHz. Most of the time, the bios will give an FSB value equivalent to the actual Mhz of the bus (i.e. 166 MHz is the same as 333 DDR). If this is the case with your bios, make sure you're not setting your RAM speed to 333 Mhz, which would yield an FSB of 666 Mhz "effective" (Nothing would boot at this speed). Rather set it to 166 Mhz, which would yield a speed of 333 Mhz effective.
Again, this is just a shot in the dark. I noticed you listed your RAM speed as 333 Mhz reported by the bios, which leads me to believe you could possibly be running at a 666 Mhz effective speed. This could be the reason your system is not booting. Again, all Bios's are different, mine lists actual Mhz, other's (your's possibly) may list "effective" Mhz. If your bios always lists effective, then disregard everything I have said above.