HP-G62 220US showing 3 long caps lock blinks after CPU change

[BenN13]

I recently changed my pentium t4500 mobile cpu to a core 2 duo t9900 mobile cpu and the caps lock is blinking with a pattern of 3 long blinks. Nothing else. I cant install bios update because it's a retired laptop. Any fixes? Also im running InsydeH2P bios utility rev F.15

[BenN13]

Typo: InsydeH2O rev F.15

[Paul_Tikkanen · Accepted solution]

The reason that the T9900 isn't working is because your notebook comes with a motherboard with the Intel GL40 chipset.

HP PartSurfer

616449-001

SPS-PCA SYSTEM BOARD UMA GL40 DDR2 HDMI

The Intel GL40 chipset can only support processors with an 800 MHz FSB and the T9900 has a 1066 MHz FSB.

If you want to upgrade the processor, the best one you can install in your notebook would be the T9500.

Intel® Core™2 Duo Processor T9500

[BenN13]

See cause i was to,d by another support person i could use the t9900. So i basically payed for nothing?!

[BenN13]

Even if i woere to install the t9900, even a bios update cannot get it to work?

[Paul_Tikkanen]

There's nothing you can do to get that processor to work in your notebook. 

The Intel GL40 chipset can't support it--with or without a BIOS update. 

Whoever told you that the T9900 would work was wrong. 

If your g62 notebook had a motherboard with the GM45 chipset, the T9900 would have worked fine. 

[BenN13]

I have the 1484 motherboard im assuming it dosent support the t9900. Thanks for the ckarification.

[Paul_Tikkanen]

You're very welcome. 

Look for a T9500 or T9300 on eBay, and either of those will work. 

[BenN13]

Okay. I will keep that in mind.

[BenN13]

Sorry to reply this far past when i published the article, but is there a way to get a motherboard with the needed chipset to run the t9900? If so i would rather do that.