Windows won’t Boot after RAM Installation – How to fix it?

You have recently upgraded your RAM and now your computer fails to boot. This is a very common problem faced by many PC users who have recently installed RAM either to boost up the speed of PC or to increase the memory capacity of PC or for any other reasons. The RAM can be upgraded easily, if your computer motherboard offers an extra slot for it. But, after installing the RAM you are unable to boot your windows. The possible reasons behind these issue are discussed below.

windows boot error after ram installation

Firstly, run CPU-Z from CPUID to verify the PC settings and timings, this information are located on the SPD tab of CPU-Z. Serial presence detect (SPD) refers to a standardized way to automatically access information about a computer memory module or stick. Then, install the DIMM (Dual inline Memory Module) with the slowest latency settings, and manually override AUTO in the BIOS, to force those settings manually. Then, try adding the second DIMM which should be forced to run at the slower latency settings required by the first DIMM.


Most computers don’t allow you to access two different types of RAM modules. So you need to install RAM with identical PC properties and each stick has the same timing values for each category.

If the above guidelines don’t help you sort out the problem, and then try to download a copy of Memtest86, burn that to a bootable CD and run that when you restart your system. Run with one stick of RAM at a time if you’re having issues with stability. This will test your memory for errors, just leave it running for several hours and errors will appear on the screen if you have any. If your system works fine with just one stick then it’s unlikely you have damaged any other components in your PC.

Try flashing of BIOS to the most up-to-date version with one RAM module, and see whether the problem persists or not. If persists, then old RAM needs to replaced. If the new RAM module is functioning on other computer, then it may be the faulty RAM slot which doesn’t allow you to access the RAM and prevents the window from booting or the new RAM stick is not compatible with the motherboard of your PC. If RAM slot is the faulty then you can put an end to this issue by replacing it with new RAM unit.

You can also try booting the windows in safe mode, if you are able to get into safe mode and everything seems to be fine, this typically means that you have a driver or software issue. Figure out the issue in the safe mode and fix it.

If the RAM slots are perfectly fine, then the best way to fix the issue is to use a single RAM module in place of two. For example, if you need upgrade RAM up to two GB, then install a single 2GB RAM instead of using two 1GB RAM. This will allow the smooth functioning of RAM as well as the PC.

The above-mentioned procedures will resolve the windows booting problem upon installation of RAM.


No comments yet.

Leave a Comment