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| Thread ID: 108641 | 2010-04-06 00:26:00 | Cpu speed halved! | PC builder (15482) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 873396 | 2010-04-06 00:26:00 | I built a PC a while ago Pentium 4 2.6 ghz, 1GB ram, running windows 7 and the motherboard is an Albatron GV845 chipset Motherboard with 2PCI Slots. On the bios it shows the brand as "Cpu Brand Intel Pentium 4 2.6 ghz" but just below it shows 1.3 ghz. I made sure by running cpu-z but it showed the same reading i've tried to overclock it back up but it only lets me get up to 1.54ghz. Please help me!:horrified |
PC builder (15482) | ||
| 873397 | 2010-04-06 00:30:00 | Probably the multiplier is set wrong. Put the FSB back to the normal setting and then increase the multiplier. A flat BIOS battery could be the cause of the settings changing. |
Agent_24 (57) | ||
| 873398 | 2010-04-06 00:31:00 | Your FSB is set wrong by the sound of it, you will need to check with your motherboard manual to see how to set the CPU speeds correctly! | SolMiester (139) | ||
| 873399 | 2010-04-06 00:35:00 | You need a speed bus of 800mhz for that CPU. If your motherboard doesn't support that you can only run at that speed. I'm sorry |
Ollie (794) | ||
| 873400 | 2010-04-06 00:38:00 | What? Only if the CPU is a Prescott. The older Pentium 4 had 400 and 533Mhz FSBs... If his CPU Is a Northwood it will only be 400Mhz FSB |
Agent_24 (57) | ||
| 873401 | 2010-04-06 00:44:00 | It probably supports speedstep. If the option is in the BIOS, disable it. If you want. Thats what it does. Change the power settings in Windows 7 (under high performance / change the processor power management setting / minimum processor state option to 100%, its on 5% by default). I'm pretty sure the P4 in the other PC here, is a Northwood 2.4. Its 800 fsb. It definitely isnt a Prescott |
Speedy Gonzales (78) | ||
| 873402 | 2010-04-06 00:46:00 | But he said it shows 1.3Ghz in BIOS too. I don't know much about speedstep but doesn't the speed only change when the operating system has booted? |
Agent_24 (57) | ||
| 873403 | 2010-04-06 00:53:00 | It probably supports speedstep. Thats what it does. The speed lowers when its idle. Change the power settings in Windows 7 (under high performance / change the processor power management setting / minimum processor state option to 100%, its on 5% by default). I'm pretty sure the P4 in the other PC here, is a Northwood 2.4. Its 800 fsb. It definitely isnt a Prescott Its not speedup mate. Speedup only works inside the desktop. It will be running full speed on BIOS. There are 2 kinds of P4s, the 533 and 800 bus models. If your motherboard is old and is restricted to 533 bus the P4 800 will not work at 2.6 Check your bus speed mate, if it says 400 it means it has halved the speed of your CPU. Change it to the maximum bus your motherboard can handle i.e 533 or 800. But it "should" run at max bus of your motherboard by default when you installed the chip. |
Ollie (794) | ||
| 873404 | 2010-04-06 00:54:00 | Well if there's an option for it in the BIOS, disable it. Then see what it says. There's actually 3. 400, 533, and 800 fsb. I've got the 3 of them (altho the 400 and 533 CPU's aren't on a mobo). But still work. I know if you use a 533 then you have to either use 266 ram, or change the speed in the BIOS to match it. Otherwise the system wont boot. I found that out when I had it on a mobo | Speedy Gonzales (78) | ||
| 873405 | 2010-04-06 01:13:00 | Well if there's an option for it in the BIOS, disable it. Then see what it says. There's actually 3. 400, 533, and 800 fsb. I've got the 3 of them (altho the 400 and 533 CPU's aren't on a mobo). But still work. I know if you use a 533 then you have to either use 266 ram, or change the speed in the BIOS to match it. Otherwise the system wont boot. I found that out when I had it on a mobo Yea its probably the RAM. Post full specs of PC |
Ollie (794) | ||
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