Tech Support Forums - TechIMO.com - View Single Post - Acer v76m-1a mobo cpu upgrade help

Trevor Lampre · November 8th, 2003, 07:28 PM

The V76M board only takes older 3.3v processors. The 733MHz Celeron runs on 1.75v. It's the so-called 'Coppermine' Celeron and won't run at 3.3v.

However, you may be able to get something for nothing. Find JP2 on the mother board. It's a block of 6 pins (2x3) located mid-way between PCI slot 1 and the RAM slots. Position the board with the CPU at the top. There should be silk-screen printing about an inch above the jumpers describing the jumper positions.

If both jumpers are on the right side then the FSB speed is 66MHz. Shift both jumpers to the left side and the FSB will run at 100MHz and give you an effective CPU clock speed of 600MHz. (This is called overclocking. The Celeron is extremely overclockable). If the machine boots you are winning.

This won't hurt the CPU but it will run warmer. If the system crashes more often then get a better heat sink and fan. eBay has tons on offer.

Or, if you have to spend more anyway, go to www.powerleap.com and check out the Neo S370. It acts as an adapter to convert the voltages and you can use your 733MHz chip. Even if it doesn't work it includes a nice heatsink and fan to keep your overclocked 400 cool.

November 8th, 2003, 07:28 PM	#7 (permalink)
Trevor Lampre Junior Member Join Date: Nov 2003 Posts: 1	The V76M board only takes older 3.3v processors. The 733MHz Celeron runs on 1.75v. It's the so-called 'Coppermine' Celeron and won't run at 3.3v. However, you may be able to get something for nothing. Find JP2 on the mother board. It's a block of 6 pins (2x3) located mid-way between PCI slot 1 and the RAM slots. Position the board with the CPU at the top. There should be silk-screen printing about an inch above the jumpers describing the jumper positions. If both jumpers are on the right side then the FSB speed is 66MHz. Shift both jumpers to the left side and the FSB will run at 100MHz and give you an effective CPU clock speed of 600MHz. (This is called overclocking. The Celeron is extremely overclockable). If the machine boots you are winning. This won't hurt the CPU but it will run warmer. If the system crashes more often then get a better heat sink and fan. eBay has tons on offer. Or, if you have to spend more anyway, go to www.powerleap.com and check out the Neo S370. It acts as an adapter to convert the voltages and you can use your 733MHz chip. Even if it doesn't work it includes a nice heatsink and fan to keep your overclocked 400 cool.