Having trouble overclocking a E4500

jazzy639

jazzy639

jazzy639

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30 Aug 2007
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Hello

I wanted to keep my AGP 7600GT so opted for an Asrock 4CoreDual SATA2 board with an E4500. Looking at this thread: http://forums.overclockers.co.uk/showthread.php?t=17610938&page=30 it seems to be a good enough motherboard.

Trouble is, I cant get the FSB past 270 without booting. It fails Orthos after 20 secs or so at that. I tried 250 and Orthos fails after a few minutes. It seems stable at stock, not bothered to run Orthos on stock.

NOW: in CPU-Z it says my Vcore is 1.168v, isnt the stock 1.325v?
Is it the PSU thats limiting me? Got a 420w with 18A on the 12v line!

Please help and thanks for reading!
 
Have you tried manually setting the CPU v core to 1.325v?

I'm not sure that board is renowned for its OC prowess unfortunately.

Also, not sure what else to suggest other than what was in the thread you linked to.

I would be tempted to clear the CMOS and start again with everything at stock...

What make/model is the PSU?
 
Hi, cant change the Vcore on the m/board. Im using it more as a stepping stone but expected to easily hit 3GHz (only a 273 FSB).

The PSU is a Sam Cheer TOP-420 P4, was from Microdirect a few years ago. Has 3 80mm fans, 18A on the 12v. The model number also corresponds to a Topower PSU aswell.
 
I'm not familiar with that PSU, but I would suspect the motherboard. If you can't change the V-Core then I'm not sure where you can go with it to be honest. If that CPU-Z figure is right, then that would be severely limiting your OC potential.

I don't suppose that Mobo allows you to drop the multi either? Then you could check if it's the board or the CPU limiting you.
 
No, i cant drop the multiplier.

Since i think it should be getting 1.325v, and its only getting 1.168v, does that mean its the PSU thats underpowered and so, with a new PSU, i should get the 1.325v and therefore a stable overclock?
 
I wouldn't have thought a new PSU would solve your problems to be honest.

As long as it's getting the required voltage to the Mobo, then the board should be stepping it down and regulating it to 1.325, or whatever the CPU says it needs via the VID.

If it were me, I would spend the money you'd need to shell out on another PSU on a better Mobo.

Of course, CPU-Z could be reporting the voltage wrongly. Is there no indication in the Bios of what the voltage is set to, even though you can't adjust it?
 
The BIOS also says 1.168v in the monitor. 11.8v are getting to the mobo on the 12v line.

Ive just got the board so could RMA it but upgrading the mobo means upgrading my DDR memory and AGP card. This mobo supports both DDR and DDR2, plus AGP and PCIe which was why I went for it.
 
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