diff --git a/dashboard/src/views/backups.html b/dashboard/src/views/backups.html
index 55b9ba3c8..23b4d480b 100644
--- a/dashboard/src/views/backups.html
+++ b/dashboard/src/views/backups.html
@@ -393,15 +393,21 @@
             <div class="form-group">
               <label class="control-label" for="sliderConfigureBackupMemoryLimit">{{ 'backups.configureBackupStorage.memoryLimit' | tr }}: <b>{{ configureBackup.memoryLimit | prettyBinarySize:'1024 MB' }}</b></label>
               <p class="small">{{ 'backups.configureBackupStorage.memoryLimitDescription' | tr }}</p>
-              <input type="range" id="sliderConfigureBackupMemoryLimit" ng-model="configureBackup.memoryLimit" step="268435456" min="{{ MIN_MEMORY_LIMIT }}" max="{{ MAX_MEMORY_LIMIT }}" />
+              <input type="range" id="sliderConfigureBackupMemoryLimit" ng-model="configureBackup.memoryLimit" step="{{ 256*1024*1024 }}" min="{{ MIN_MEMORY_LIMIT }}" max="{{ MAX_MEMORY_LIMIT }}" />
             </div>
 
             <div class="form-group" ng-show="s3like(configureBackup.provider)">
-              <label class="control-label">{{ 'backups.configureBackupStorage.uploadPartSize' | tr }}: <b>{{ configureBackup.uploadPartSize | prettyBinarySize:'Default (50 MiB)' }}</b></label>
+              <label class="control-label" for="sliderConfigureBackupUploadPartSize">{{ 'backups.configureBackupStorage.uploadPartSize' | tr }}: <b>{{ configureBackup.uploadPartSize | prettyBinarySize:'Default (50 MiB)' }}</b></label>
               <p class="small">{{ 'backups.configureBackupStorage.uploadPartSizeDescription' | tr }}</p>
-              <div style="padding: 0 10px;">
-                <slider id="sliderConfigureBackupUploadPartSize" ng-model="configureBackup.uploadPartSize" step="1048576" tooltip="hide" ticks="configureBackup.uploadPartSizeTicks" ticks-snap-bounds="2097152"></slider>
-              </div>
+              <input type="range" id="sliderConfigureBackupUploadPartSize" ng-model="configureBackup.uploadPartSize" list="uploadPartSizeTicks" step="{{ 1024*1024 }}" min="{{ 1024*1024 }}" max="{{ 1024*1024*1024 }}" />
+              <datalist id="uploadPartSizeTicks">
+                <option value="{{      1024*1024 }}"></option>
+                <option value="{{   64*1024*1024 }}"></option>
+                <option value="{{  128*1024*1024 }}"></option>
+                <option value="{{  256*1024*1024 }}"></option>
+                <option value="{{  512*1024*1024 }}"></option>
+                <option value="{{ 1024*1024*1024 }}"></option>
+              </datalist>
             </div>
 
             <div class="form-group" ng-show="configureBackup.format === 'rsync' && configureBackup.provider !== 'noop'">
diff --git a/dashboard/src/views/backups.js b/dashboard/src/views/backups.js
index 488ee028d..22b8805db 100644
--- a/dashboard/src/views/backups.js
+++ b/dashboard/src/views/backups.js
@@ -464,7 +464,6 @@ angular.module('Application').controller('BackupsController', ['$scope', '$locat
 
         memoryTicks: [],
         memoryLimit: $scope.MIN_MEMORY_LIMIT,
-        uploadPartSizeTicks: [],
         uploadPartSize: 50 * 1024 * 1024,
         copyConcurrency: '',
         downloadConcurrency: '',
@@ -549,11 +548,6 @@ angular.module('Application').controller('BackupsController', ['$scope', '$locat
             $scope.configureBackup.syncConcurrency = limits.syncConcurrency || ($scope.backupConfig.provider === 's3' ? 20 : 10);
             $scope.configureBackup.copyConcurrency = limits.copyConcurrency || ($scope.backupConfig.provider === 's3' ? 500 : 10);
 
-            $scope.configureBackup.uploadPartSizeTicks = [ 5 * 1024 * 1024 ];
-            for (var j = 32; j <= 1 * 1024; j *= 2) { // 5 GB is max for s3. but let's keep things practical for now. we upload 3 parts in parallel
-                $scope.configureBackup.uploadPartSizeTicks.push(j * 1024 * 1024);
-            }
-
             var mountOptions = $scope.backupConfig.mountOptions || {};
             $scope.configureBackup.mountOptions = {
                 host: mountOptions.host || '',
@@ -708,7 +702,7 @@ angular.module('Application').controller('BackupsController', ['$scope', '$locat
                 backupConfig.noHardlinks = !$scope.configureBackup.useHardlinks;
             }
 
-            backupConfig.limits.uploadPartSize = $scope.configureBackup.uploadPartSize;
+            backupConfig.limits.uploadPartSize = parseInt($scope.configureBackup.uploadPartSize);
 
             if (backupConfig.format === 'rsync') {
                 backupConfig.limits.downloadConcurrency = $scope.configureBackup.downloadConcurrency;